diff --git a/cli/args/flags.rs b/cli/args/flags.rs
index e027a72b98..4801737a8d 100644
--- a/cli/args/flags.rs
+++ b/cli/args/flags.rs
@@ -1109,11 +1109,11 @@ fn bundle_subcommand() -> Command {
     .long_about(
       "Output a single JavaScript file with all dependencies.
 
-  deno bundle https://deno.land/std/examples/colors.ts colors.bundle.js
+  deno bundle https://deno.land/std/http/file_server.ts file_server.bundle.js
 
 If no output file is given, the output is written to standard output:
 
-  deno bundle https://deno.land/std/examples/colors.ts",
+  deno bundle https://deno.land/std/http/file_server.ts",
     )
     .defer(|cmd| {
       compile_args(cmd)
@@ -1201,7 +1201,7 @@ fn compile_subcommand() -> Command {
       "Compiles the given script into a self contained executable.
 
   deno compile -A https://deno.land/std/http/file_server.ts
-  deno compile --output color_util https://deno.land/std/examples/colors.ts
+  deno compile --output file_server https://deno.land/std/http/file_server.ts
 
 Any flags passed which affect runtime behavior, such as '--unstable',
 '--allow-*', '--v8-flags', etc. are encoded into the output executable and
@@ -1730,7 +1730,7 @@ fn install_subcommand() -> Command {
         "Installs a script as an executable in the installation root's bin directory.
 
   deno install --allow-net --allow-read https://deno.land/std/http/file_server.ts
-  deno install https://deno.land/std/examples/colors.ts
+  deno install https://examples.deno.land/color-logging.ts
 
 To change the executable name, use -n/--name:
 
@@ -6365,14 +6365,14 @@ mod tests {
     let r = flags_from_vec(svec![
       "deno",
       "install",
-      "https://deno.land/std/examples/colors.ts"
+      "https://deno.land/std/http/file_server.ts"
     ]);
     assert_eq!(
       r.unwrap(),
       Flags {
         subcommand: DenoSubcommand::Install(InstallFlags {
           name: None,
-          module_url: "https://deno.land/std/examples/colors.ts".to_string(),
+          module_url: "https://deno.land/std/http/file_server.ts".to_string(),
           args: vec![],
           root: None,
           force: false,
@@ -7839,13 +7839,14 @@ mod tests {
     let r = flags_from_vec(svec![
       "deno",
       "compile",
-      "https://deno.land/std/examples/colors.ts"
+      "https://examples.deno.land/color-logging.ts"
     ]);
     assert_eq!(
       r.unwrap(),
       Flags {
         subcommand: DenoSubcommand::Compile(CompileFlags {
-          source_file: "https://deno.land/std/examples/colors.ts".to_string(),
+          source_file: "https://examples.deno.land/color-logging.ts"
+            .to_string(),
           output: None,
           args: vec![],
           target: None,
@@ -7861,12 +7862,13 @@ mod tests {
   #[test]
   fn compile_with_flags() {
     #[rustfmt::skip]
-    let r = flags_from_vec(svec!["deno", "compile", "--import-map", "import_map.json", "--no-remote", "--config", "tsconfig.json", "--no-check", "--unsafely-ignore-certificate-errors", "--reload", "--lock", "lock.json", "--lock-write", "--cert", "example.crt", "--cached-only", "--location", "https:foo", "--allow-read", "--allow-net", "--v8-flags=--help", "--seed", "1", "--no-terminal", "--output", "colors", "--env=.example.env", "https://deno.land/std/examples/colors.ts", "foo", "bar", "-p", "8080"]);
+    let r = flags_from_vec(svec!["deno", "compile", "--import-map", "import_map.json", "--no-remote", "--config", "tsconfig.json", "--no-check", "--unsafely-ignore-certificate-errors", "--reload", "--lock", "lock.json", "--lock-write", "--cert", "example.crt", "--cached-only", "--location", "https:foo", "--allow-read", "--allow-net", "--v8-flags=--help", "--seed", "1", "--no-terminal", "--output", "colors", "--env=.example.env", "https://examples.deno.land/color-logging.ts", "foo", "bar", "-p", "8080"]);
     assert_eq!(
       r.unwrap(),
       Flags {
         subcommand: DenoSubcommand::Compile(CompileFlags {
-          source_file: "https://deno.land/std/examples/colors.ts".to_string(),
+          source_file: "https://examples.deno.land/color-logging.ts"
+            .to_string(),
           output: Some(PathBuf::from("colors")),
           args: svec!["foo", "bar", "-p", "8080"],
           target: None,
diff --git a/cli/bench/main.rs b/cli/bench/main.rs
index 7ecef2b6fc..f8e3aa03fb 100644
--- a/cli/bench/main.rs
+++ b/cli/bench/main.rs
@@ -130,7 +130,7 @@ const EXEC_TIME_BENCHMARKS: &[(&str, &[&str], Option<i32>)] = &[
       "check",
       "--reload",
       "--unstable",
-      "test_util/std/examples/chat/server_test.ts",
+      "test_util/std/http/file_server_test.ts",
     ],
     None,
   ),
@@ -141,7 +141,7 @@ const EXEC_TIME_BENCHMARKS: &[(&str, &[&str], Option<i32>)] = &[
       "--reload",
       "--no-check",
       "--unstable",
-      "test_util/std/examples/chat/server_test.ts",
+      "test_util/std/http/file_server_test.ts",
     ],
     None,
   ),
@@ -150,7 +150,7 @@ const EXEC_TIME_BENCHMARKS: &[(&str, &[&str], Option<i32>)] = &[
     &[
       "bundle",
       "--unstable",
-      "test_util/std/examples/chat/server_test.ts",
+      "test_util/std/http/file_server_test.ts",
     ],
     None,
   ),
@@ -160,7 +160,7 @@ const EXEC_TIME_BENCHMARKS: &[(&str, &[&str], Option<i32>)] = &[
       "bundle",
       "--no-check",
       "--unstable",
-      "test_util/std/examples/chat/server_test.ts",
+      "test_util/std/http/file_server_test.ts",
     ],
     None,
   ),
@@ -314,7 +314,7 @@ fn get_binary_sizes(target_dir: &Path) -> Result<HashMap<String, i64>> {
 
 const BUNDLES: &[(&str, &str)] = &[
   ("file_server", "./test_util/std/http/file_server.ts"),
-  ("gist", "./test_util/std/examples/gist.ts"),
+  ("welcome", "./cli/tests/testdata/welcome.ts"),
 ];
 fn bundle_benchmark(deno_exe: &Path) -> Result<HashMap<String, i64>> {
   let mut sizes = HashMap::<String, i64>::new();
diff --git a/cli/lsp/diagnostics.rs b/cli/lsp/diagnostics.rs
index 4b43a478ca..00f5353917 100644
--- a/cli/lsp/diagnostics.rs
+++ b/cli/lsp/diagnostics.rs
@@ -1650,14 +1650,27 @@ let c: number = "a";
     let (snapshot, _) = setup(
       &temp_dir,
       &[
-        ("file:///std/testing/asserts.ts", "export function assert() {}", 1, LanguageId::TypeScript),
-        ("file:///a/file.ts", "import { assert } from \"../std/testing/asserts.ts\";\n\nassert();\n", 1, LanguageId::TypeScript),
+        (
+          "file:///std/assert/mod.ts",
+          "export function assert() {}",
+          1,
+          LanguageId::TypeScript,
+        ),
+        (
+          "file:///a/file.ts",
+          "import { assert } from \"../std/assert/mod.ts\";\n\nassert();\n",
+          1,
+          LanguageId::TypeScript,
+        ),
       ],
-      Some(("file:///a/import-map.json", r#"{
+      Some((
+        "file:///a/import-map.json",
+        r#"{
         "imports": {
           "/~/std/": "../std/"
         }
-      }"#)),
+      }"#,
+      )),
     );
     let config = mock_config();
     let token = CancellationToken::new();
@@ -1665,7 +1678,7 @@ let c: number = "a";
     assert_eq!(actual.len(), 2);
     for record in actual {
       match record.specifier.as_str() {
-        "file:///std/testing/asserts.ts" => {
+        "file:///std/assert/mod.ts" => {
           assert_eq!(json!(record.versioned.diagnostics), json!([]))
         }
         "file:///a/file.ts" => assert_eq!(
@@ -1679,16 +1692,16 @@ let c: number = "a";
                 },
                 "end": {
                   "line": 0,
-                  "character": 50
+                  "character": 45
                 }
               },
               "severity": 4,
               "code": "import-map-remap",
               "source": "deno",
-              "message": "The import specifier can be remapped to \"/~/std/testing/asserts.ts\" which will resolve it via the active import map.",
+              "message": "The import specifier can be remapped to \"/~/std/assert/mod.ts\" which will resolve it via the active import map.",
               "data": {
-                "from": "../std/testing/asserts.ts",
-                "to": "/~/std/testing/asserts.ts"
+                "from": "../std/assert/mod.ts",
+                "to": "/~/std/assert/mod.ts"
               }
             }
           ])
@@ -1709,10 +1722,10 @@ let c: number = "a";
       severity: Some(lsp::DiagnosticSeverity::HINT),
       code: Some(lsp::NumberOrString::String("import-map-remap".to_string())),
       source: Some("deno".to_string()),
-      message: "The import specifier can be remapped to \"/~/std/testing/asserts.ts\" which will resolve it via the active import map.".to_string(),
+      message: "The import specifier can be remapped to \"/~/std/assert/mod.ts\" which will resolve it via the active import map.".to_string(),
       data: Some(json!({
-        "from": "../std/testing/asserts.ts",
-        "to": "/~/std/testing/asserts.ts"
+        "from": "../std/assert/mod.ts",
+        "to": "/~/std/assert/mod.ts"
       })),
       ..Default::default()
     });
@@ -1721,7 +1734,7 @@ let c: number = "a";
     assert_eq!(
       json!(actual),
       json!({
-        "title": "Update \"../std/testing/asserts.ts\" to \"/~/std/testing/asserts.ts\" to use import map.",
+        "title": "Update \"../std/assert/mod.ts\" to \"/~/std/assert/mod.ts\" to use import map.",
         "kind": "quickfix",
         "diagnostics": [
           {
@@ -1738,10 +1751,10 @@ let c: number = "a";
             "severity": 4,
             "code": "import-map-remap",
             "source": "deno",
-            "message": "The import specifier can be remapped to \"/~/std/testing/asserts.ts\" which will resolve it via the active import map.",
+            "message": "The import specifier can be remapped to \"/~/std/assert/mod.ts\" which will resolve it via the active import map.",
             "data": {
-              "from": "../std/testing/asserts.ts",
-              "to": "/~/std/testing/asserts.ts"
+              "from": "../std/assert/mod.ts",
+              "to": "/~/std/assert/mod.ts"
             }
           }
         ],
@@ -1759,7 +1772,7 @@ let c: number = "a";
                     "character": 50
                   }
                 },
-                "newText": "\"/~/std/testing/asserts.ts\""
+                "newText": "\"/~/std/assert/mod.ts\""
               }
             ]
           }
diff --git a/cli/tests/integration/compile_tests.rs b/cli/tests/integration/compile_tests.rs
index 653b2bc8da..9963a044b3 100644
--- a/cli/tests/integration/compile_tests.rs
+++ b/cli/tests/integration/compile_tests.rs
@@ -24,7 +24,7 @@ fn compile_basic() {
         "compile",
         "--output",
         &exe.to_string_lossy(),
-        "../../../test_util/std/examples/welcome.ts",
+        "../../../cli/tests/testdata/welcome.ts",
       ])
       .run();
     output.assert_exit_code(0);
diff --git a/cli/tests/integration/lsp_tests.rs b/cli/tests/integration/lsp_tests.rs
index 26268f0a4b..da3d6d6e5b 100644
--- a/cli/tests/integration/lsp_tests.rs
+++ b/cli/tests/integration/lsp_tests.rs
@@ -1302,7 +1302,7 @@ fn lsp_hover() {
           "language": "typescript",
           "value": "const Deno.args: string[]"
         },
-        "Returns the script arguments to the program.\n\nGive the following command line invocation of Deno:\n\n```sh\ndeno run --allow-read https://deno.land/std/examples/cat.ts /etc/passwd\n```\n\nThen `Deno.args` will contain:\n\n```ts\n[ \"/etc/passwd\" ]\n```\n\nIf you are looking for a structured way to parse arguments, there is the\n[`std/flags`](https://deno.land/std/flags) module as part of the Deno\nstandard library.",
+        "Returns the script arguments to the program.\n\nGive the following command line invocation of Deno:\n\n```sh\ndeno run --allow-read https://examples.deno.land/command-line-arguments.ts Sushi\n```\n\nThen `Deno.args` will contain:\n\n```ts\n[ \"Sushi\" ]\n```\n\nIf you are looking for a structured way to parse arguments, there is the\n[`std/flags`](https://deno.land/std/flags) module as part of the Deno\nstandard library.",
         "\n\n*@category* - Runtime Environment",
       ],
       "range": {
diff --git a/cli/tests/node_compat/common.ts b/cli/tests/node_compat/common.ts
index 1b9748f26f..7de7026cd4 100644
--- a/cli/tests/node_compat/common.ts
+++ b/cli/tests/node_compat/common.ts
@@ -1,7 +1,7 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 import { partition } from "../../../test_util/std/collections/partition.ts";
 import { join } from "../../../test_util/std/path/mod.ts";
-import * as JSONC from "../../../test_util/std/encoding/jsonc.ts";
+import * as JSONC from "../../../test_util/std/jsonc/mod.ts";
 /**
  * The test suite matches the folders inside the `test` folder inside the
  * node repo
diff --git a/cli/tests/node_compat/test.ts b/cli/tests/node_compat/test.ts
index 3f3d7bd21f..e716bfd8bf 100644
--- a/cli/tests/node_compat/test.ts
+++ b/cli/tests/node_compat/test.ts
@@ -16,7 +16,7 @@
 import { magenta } from "../../../test_util/std/fmt/colors.ts";
 import { pooledMap } from "../../../test_util/std/async/pool.ts";
 import { dirname, fromFileUrl, join } from "../../../test_util/std/path/mod.ts";
-import { fail } from "../../../test_util/std/testing/asserts.ts";
+import { fail } from "../../../test_util/std/assert/mod.ts";
 import {
   config,
   getPathsFromTestSuites,
diff --git a/cli/tests/testdata/bench/allow_all.ts b/cli/tests/testdata/bench/allow_all.ts
index d7dde3a855..beb4a450e5 100644
--- a/cli/tests/testdata/bench/allow_all.ts
+++ b/cli/tests/testdata/bench/allow_all.ts
@@ -1,4 +1,4 @@
-import { assertEquals } from "../../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../../test_util/std/assert/mod.ts";
 
 const permissions: Deno.PermissionName[] = [
   "read",
diff --git a/cli/tests/testdata/bench/allow_none.ts b/cli/tests/testdata/bench/allow_none.ts
index 778e98420a..e723ed8684 100644
--- a/cli/tests/testdata/bench/allow_none.ts
+++ b/cli/tests/testdata/bench/allow_none.ts
@@ -1,4 +1,4 @@
-import { unreachable } from "../../../../test_util/std/testing/asserts.ts";
+import { unreachable } from "../../../../test_util/std/assert/mod.ts";
 
 const permissions: Deno.PermissionName[] = [
   "read",
diff --git a/cli/tests/testdata/cert/listen_tls_alpn_fail.ts b/cli/tests/testdata/cert/listen_tls_alpn_fail.ts
index da60383f0a..c1aa4b31d0 100644
--- a/cli/tests/testdata/cert/listen_tls_alpn_fail.ts
+++ b/cli/tests/testdata/cert/listen_tls_alpn_fail.ts
@@ -1,4 +1,4 @@
-import { assertRejects } from "../../../../test_util/std/testing/asserts.ts";
+import { assertRejects } from "../../../../test_util/std/assert/mod.ts";
 
 const listener = Deno.listenTls({
   port: Number(Deno.args[0]),
diff --git a/cli/tests/testdata/compile/standalone_follow_redirects_2.js b/cli/tests/testdata/compile/standalone_follow_redirects_2.js
index a1bf838758..00ebc0f5c9 100644
--- a/cli/tests/testdata/compile/standalone_follow_redirects_2.js
+++ b/cli/tests/testdata/compile/standalone_follow_redirects_2.js
@@ -2,4 +2,4 @@
 import {
   assertNotEquals as _a,
   assertStrictEquals as _b,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
diff --git a/cli/tests/testdata/coverage/no_tests_included/foo.test.js b/cli/tests/testdata/coverage/no_tests_included/foo.test.js
index 12da76d02b..f555c2d0a6 100644
--- a/cli/tests/testdata/coverage/no_tests_included/foo.test.js
+++ b/cli/tests/testdata/coverage/no_tests_included/foo.test.js
@@ -1,5 +1,5 @@
 import { addNumbers } from "./foo.ts";
-import { assertEquals } from "../../../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../../../test_util/std/assert/mod.ts";
 
 Deno.test("addNumbers works", () => {
   assertEquals(addNumbers(1, 2), 3);
diff --git a/cli/tests/testdata/coverage/no_tests_included/foo.test.mts b/cli/tests/testdata/coverage/no_tests_included/foo.test.mts
index 12da76d02b..f555c2d0a6 100644
--- a/cli/tests/testdata/coverage/no_tests_included/foo.test.mts
+++ b/cli/tests/testdata/coverage/no_tests_included/foo.test.mts
@@ -1,5 +1,5 @@
 import { addNumbers } from "./foo.ts";
-import { assertEquals } from "../../../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../../../test_util/std/assert/mod.ts";
 
 Deno.test("addNumbers works", () => {
   assertEquals(addNumbers(1, 2), 3);
diff --git a/cli/tests/testdata/coverage/no_tests_included/foo.test.ts b/cli/tests/testdata/coverage/no_tests_included/foo.test.ts
index 12da76d02b..f555c2d0a6 100644
--- a/cli/tests/testdata/coverage/no_tests_included/foo.test.ts
+++ b/cli/tests/testdata/coverage/no_tests_included/foo.test.ts
@@ -1,5 +1,5 @@
 import { addNumbers } from "./foo.ts";
-import { assertEquals } from "../../../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../../../test_util/std/assert/mod.ts";
 
 Deno.test("addNumbers works", () => {
   assertEquals(addNumbers(1, 2), 3);
diff --git a/cli/tests/testdata/coverage/no_transpiled_lines/expected.lcov b/cli/tests/testdata/coverage/no_transpiled_lines/expected.lcov
index fae96ed355..480945d142 100644
--- a/cli/tests/testdata/coverage/no_transpiled_lines/expected.lcov
+++ b/cli/tests/testdata/coverage/no_transpiled_lines/expected.lcov
@@ -4,9 +4,7 @@ FNH:0
 BRF:0
 BRH:0
 DA:1,1
-DA:2,1
 DA:3,1
-DA:5,1
-LH:4
-LF:4
+LH:2
+LF:2
 end_of_record
diff --git a/cli/tests/testdata/coverage/no_transpiled_lines/expected.out b/cli/tests/testdata/coverage/no_transpiled_lines/expected.out
index 792bd654f6..3438a045c4 100644
--- a/cli/tests/testdata/coverage/no_transpiled_lines/expected.out
+++ b/cli/tests/testdata/coverage/no_transpiled_lines/expected.out
@@ -1 +1 @@
-cover [WILDCARD]index.ts ... 100.000% (4/4)
+cover [WILDCARD]index.ts ... 100.000% (2/2)
diff --git a/cli/tests/testdata/coverage/no_transpiled_lines/index.ts b/cli/tests/testdata/coverage/no_transpiled_lines/index.ts
index df25283cd3..7e4f221635 100644
--- a/cli/tests/testdata/coverage/no_transpiled_lines/index.ts
+++ b/cli/tests/testdata/coverage/no_transpiled_lines/index.ts
@@ -1,5 +1,3 @@
-export {
-  assertStrictEquals,
-} from "../../../../../test_util/std/testing/asserts.ts";
+export { assertStrictEquals } from "../../../../../test_util/std/assert/mod.ts";
 
 export * from "./interface.ts";
diff --git a/cli/tests/testdata/run/045_proxy_test.ts b/cli/tests/testdata/run/045_proxy_test.ts
index 8ca733a942..eacce1130c 100644
--- a/cli/tests/testdata/run/045_proxy_test.ts
+++ b/cli/tests/testdata/run/045_proxy_test.ts
@@ -1,6 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 import { Server } from "../../../../test_util/std/http/server.ts";
-import { assertEquals } from "../../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../../test_util/std/assert/mod.ts";
 
 const addr = Deno.args[1] || "localhost:4555";
 
diff --git a/cli/tests/testdata/run/import_meta/main.ts b/cli/tests/testdata/run/import_meta/main.ts
index 0d7cb96dae..b6d9c506ec 100644
--- a/cli/tests/testdata/run/import_meta/main.ts
+++ b/cli/tests/testdata/run/import_meta/main.ts
@@ -1,4 +1,4 @@
-import { assertThrows } from "../../../../../test_util/std/testing/asserts.ts";
+import { assertThrows } from "../../../../../test_util/std/assert/mod.ts";
 
 console.log("main", import.meta.url, import.meta.main);
 
diff --git a/cli/tests/testdata/run/onload/imported.ts b/cli/tests/testdata/run/onload/imported.ts
index f4157b86f8..971ddaea35 100644
--- a/cli/tests/testdata/run/onload/imported.ts
+++ b/cli/tests/testdata/run/onload/imported.ts
@@ -1,5 +1,5 @@
 // deno-lint-ignore-file no-window-prefix
-import { assert } from "../../../../../test_util/std/testing/asserts.ts";
+import { assert } from "../../../../../test_util/std/assert/mod.ts";
 import "./nest_imported.ts";
 
 const handler = (e: Event) => {
diff --git a/cli/tests/testdata/run/onload/main.ts b/cli/tests/testdata/run/onload/main.ts
index 126627e34f..191c4d8728 100644
--- a/cli/tests/testdata/run/onload/main.ts
+++ b/cli/tests/testdata/run/onload/main.ts
@@ -1,5 +1,5 @@
 // deno-lint-ignore-file no-window-prefix no-prototype-builtins
-import { assert } from "../../../../../test_util/std/testing/asserts.ts";
+import { assert } from "../../../../../test_util/std/assert/mod.ts";
 import "./imported.ts";
 
 assert(window.hasOwnProperty("onload"));
diff --git a/cli/tests/testdata/run/onload/nest_imported.ts b/cli/tests/testdata/run/onload/nest_imported.ts
index a942d27295..e896998549 100644
--- a/cli/tests/testdata/run/onload/nest_imported.ts
+++ b/cli/tests/testdata/run/onload/nest_imported.ts
@@ -1,5 +1,5 @@
 // deno-lint-ignore-file no-window-prefix
-import { assert } from "../../../../../test_util/std/testing/asserts.ts";
+import { assert } from "../../../../../test_util/std/assert/mod.ts";
 
 const handler = (e: Event) => {
   assert(e.type === "beforeunload" ? e.cancelable : !e.cancelable);
diff --git a/cli/tests/testdata/run/tls_connecttls.js b/cli/tests/testdata/run/tls_connecttls.js
index bd1d410969..18a0783fc9 100644
--- a/cli/tests/testdata/run/tls_connecttls.js
+++ b/cli/tests/testdata/run/tls_connecttls.js
@@ -1,7 +1,4 @@
-import {
-  assert,
-  assertEquals,
-} from "../../../../test_util/std/testing/asserts.ts";
+import { assert, assertEquals } from "../../../../test_util/std/assert/mod.ts";
 import { BufReader, BufWriter } from "../../../../test_util/std/io/mod.ts";
 import { TextProtoReader } from "./textproto.ts";
 
diff --git a/cli/tests/testdata/run/tls_starttls.js b/cli/tests/testdata/run/tls_starttls.js
index 4acc21461d..3d84ac74a2 100644
--- a/cli/tests/testdata/run/tls_starttls.js
+++ b/cli/tests/testdata/run/tls_starttls.js
@@ -1,7 +1,4 @@
-import {
-  assert,
-  assertEquals,
-} from "../../../../test_util/std/testing/asserts.ts";
+import { assert, assertEquals } from "../../../../test_util/std/assert/mod.ts";
 import { BufReader } from "../../../../test_util/std/io/buf_reader.ts";
 import { BufWriter } from "../../../../test_util/std/io/buf_writer.ts";
 import { TextProtoReader } from "./textproto.ts";
diff --git a/cli/tests/testdata/run/websocket_server_idletimeout.ts b/cli/tests/testdata/run/websocket_server_idletimeout.ts
index b99c1a61f0..fa267c41ba 100644
--- a/cli/tests/testdata/run/websocket_server_idletimeout.ts
+++ b/cli/tests/testdata/run/websocket_server_idletimeout.ts
@@ -1,4 +1,4 @@
-import { assertEquals } from "../../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../../test_util/std/assert/mod.ts";
 
 const errorDeferred = Promise.withResolvers<void>();
 const closeDeferred = Promise.withResolvers<void>();
diff --git a/cli/tests/testdata/run/websocket_test.ts b/cli/tests/testdata/run/websocket_test.ts
index c534db99f5..566e442064 100644
--- a/cli/tests/testdata/run/websocket_test.ts
+++ b/cli/tests/testdata/run/websocket_test.ts
@@ -4,7 +4,7 @@ import {
   assertEquals,
   assertThrows,
   fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 
 Deno.test("invalid scheme", () => {
   assertThrows(() => new WebSocket("foo://localhost:4242"));
diff --git a/cli/tests/testdata/run/websocketstream_test.ts b/cli/tests/testdata/run/websocketstream_test.ts
index 82dd59a20e..f34eaf0ab9 100644
--- a/cli/tests/testdata/run/websocketstream_test.ts
+++ b/cli/tests/testdata/run/websocketstream_test.ts
@@ -7,7 +7,7 @@ import {
   assertRejects,
   assertThrows,
   unreachable,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 
 Deno.test("fragment", () => {
   assertThrows(() => new WebSocketStream("ws://localhost:4242/#"));
diff --git a/cli/tests/testdata/test/allow_all.ts b/cli/tests/testdata/test/allow_all.ts
index c7a2381300..50cd407e41 100644
--- a/cli/tests/testdata/test/allow_all.ts
+++ b/cli/tests/testdata/test/allow_all.ts
@@ -1,4 +1,4 @@
-import { assertEquals } from "../../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../../test_util/std/assert/mod.ts";
 
 const permissions: Deno.PermissionName[] = [
   "read",
diff --git a/cli/tests/testdata/test/allow_none.ts b/cli/tests/testdata/test/allow_none.ts
index 3153b97553..eb760242a4 100644
--- a/cli/tests/testdata/test/allow_none.ts
+++ b/cli/tests/testdata/test/allow_none.ts
@@ -1,4 +1,4 @@
-import { unreachable } from "../../../../test_util/std/testing/asserts.ts";
+import { unreachable } from "../../../../test_util/std/assert/mod.ts";
 
 const permissions: Deno.PermissionName[] = [
   "read",
diff --git a/cli/tests/testdata/welcome.ts b/cli/tests/testdata/welcome.ts
new file mode 100644
index 0000000000..f983ca89ba
--- /dev/null
+++ b/cli/tests/testdata/welcome.ts
@@ -0,0 +1 @@
+console.log("Welcome to Deno!");
diff --git a/cli/tests/testdata/workers/deno_worker.ts b/cli/tests/testdata/workers/deno_worker.ts
index a4dca15068..eccdab5b0b 100644
--- a/cli/tests/testdata/workers/deno_worker.ts
+++ b/cli/tests/testdata/workers/deno_worker.ts
@@ -1,4 +1,4 @@
-import { assert } from "../../../../test_util/std/testing/asserts.ts";
+import { assert } from "../../../../test_util/std/assert/mod.ts";
 
 onmessage = function (e) {
   if (typeof self.Deno === "undefined") {
diff --git a/cli/tests/testdata/workers/test.ts b/cli/tests/testdata/workers/test.ts
index 71f56a8c2b..0f0a2e1c6b 100644
--- a/cli/tests/testdata/workers/test.ts
+++ b/cli/tests/testdata/workers/test.ts
@@ -7,7 +7,7 @@ import {
   assertEquals,
   assertMatch,
   assertThrows,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 
 Deno.test({
   name: "worker terminate",
diff --git a/cli/tests/unit/broadcast_channel_test.ts b/cli/tests/unit/broadcast_channel_test.ts
index fecb26b16e..f8b0ef9337 100644
--- a/cli/tests/unit/broadcast_channel_test.ts
+++ b/cli/tests/unit/broadcast_channel_test.ts
@@ -1,5 +1,5 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
-import { assertEquals } from "../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../test_util/std/assert/mod.ts";
 
 Deno.test("BroadcastChannel worker", async () => {
   const intercom = new BroadcastChannel("intercom");
diff --git a/cli/tests/unit/message_channel_test.ts b/cli/tests/unit/message_channel_test.ts
index 8872fc68b1..306d897301 100644
--- a/cli/tests/unit/message_channel_test.ts
+++ b/cli/tests/unit/message_channel_test.ts
@@ -1,10 +1,7 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 // NOTE: these are just sometests to test the TypeScript types. Real coverage is
 // provided by WPT.
-import {
-  assert,
-  assertEquals,
-} from "../../../test_util/std/testing/asserts.ts";
+import { assert, assertEquals } from "../../../test_util/std/assert/mod.ts";
 
 Deno.test("messagechannel", async () => {
   const mc = new MessageChannel();
diff --git a/cli/tests/unit/opcall_test.ts b/cli/tests/unit/opcall_test.ts
index fb269fc323..d2c65440c7 100644
--- a/cli/tests/unit/opcall_test.ts
+++ b/cli/tests/unit/opcall_test.ts
@@ -1,6 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 
-import { assertEquals } from "../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../test_util/std/assert/mod.ts";
 import { assert, assertStringIncludes, unreachable } from "./test_util.ts";
 
 Deno.test(async function sendAsyncStackTrace() {
diff --git a/cli/tests/unit/serve_test.ts b/cli/tests/unit/serve_test.ts
index f99b093778..7e94ceb963 100644
--- a/cli/tests/unit/serve_test.ts
+++ b/cli/tests/unit/serve_test.ts
@@ -3,7 +3,7 @@
 import {
   assertMatch,
   assertRejects,
-} from "../../../test_util/std/testing/asserts.ts";
+} from "../../../test_util/std/assert/mod.ts";
 import { Buffer, BufReader, BufWriter } from "../../../test_util/std/io/mod.ts";
 import { TextProtoReader } from "../testdata/run/textproto.ts";
 import {
diff --git a/cli/tests/unit/test_util.ts b/cli/tests/unit/test_util.ts
index c7dc9e80be..3cd1dde386 100644
--- a/cli/tests/unit/test_util.ts
+++ b/cli/tests/unit/test_util.ts
@@ -19,7 +19,7 @@ export {
   fail,
   unimplemented,
   unreachable,
-} from "../../../test_util/std/testing/asserts.ts";
+} from "../../../test_util/std/assert/mod.ts";
 export { delay } from "../../../test_util/std/async/delay.ts";
 export { readLines } from "../../../test_util/std/io/read_lines.ts";
 export { parse as parseArgs } from "../../../test_util/std/flags/mod.ts";
diff --git a/cli/tests/unit_node/_fs/_fs_access_test.ts b/cli/tests/unit_node/_fs/_fs_access_test.ts
index 5fd2a5b31d..15fa2410f7 100644
--- a/cli/tests/unit_node/_fs/_fs_access_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_access_test.ts
@@ -3,7 +3,7 @@ import * as fs from "node:fs";
 import {
   assertRejects,
   assertThrows,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 
 Deno.test(
   "[node/fs.access] Uses the owner permission when the user is the owner",
diff --git a/cli/tests/unit_node/_fs/_fs_appendFile_test.ts b/cli/tests/unit_node/_fs/_fs_appendFile_test.ts
index 5741938f06..3770159345 100644
--- a/cli/tests/unit_node/_fs/_fs_appendFile_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_appendFile_test.ts
@@ -3,7 +3,7 @@ import {
   assertEquals,
   assertThrows,
   fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { appendFile, appendFileSync } from "node:fs";
 import { fromFileUrl } from "../../../../test_util/std/path/mod.ts";
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
diff --git a/cli/tests/unit_node/_fs/_fs_chmod_test.ts b/cli/tests/unit_node/_fs/_fs_chmod_test.ts
index 11f01d1ad6..4704f612fd 100644
--- a/cli/tests/unit_node/_fs/_fs_chmod_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_chmod_test.ts
@@ -4,7 +4,7 @@ import {
   assertRejects,
   assertThrows,
   fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
 import { chmod, chmodSync } from "node:fs";
 
diff --git a/cli/tests/unit_node/_fs/_fs_chown_test.ts b/cli/tests/unit_node/_fs/_fs_chown_test.ts
index 2174d49d71..4fd2d6c8c8 100644
--- a/cli/tests/unit_node/_fs/_fs_chown_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_chown_test.ts
@@ -1,8 +1,5 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
-import {
-  assertEquals,
-  fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+import { assertEquals, fail } from "../../../../test_util/std/assert/mod.ts";
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
 import { chown, chownSync } from "node:fs";
 
diff --git a/cli/tests/unit_node/_fs/_fs_close_test.ts b/cli/tests/unit_node/_fs/_fs_close_test.ts
index 4d0743dbd7..d14ad1b73c 100644
--- a/cli/tests/unit_node/_fs/_fs_close_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_close_test.ts
@@ -3,7 +3,7 @@ import {
   assert,
   assertThrows,
   fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
 import { close, closeSync } from "node:fs";
 
diff --git a/cli/tests/unit_node/_fs/_fs_copy_test.ts b/cli/tests/unit_node/_fs/_fs_copy_test.ts
index b08e8d7f3d..cea6e65ab7 100644
--- a/cli/tests/unit_node/_fs/_fs_copy_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_copy_test.ts
@@ -1,6 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 import * as path from "../../../../test_util/std/path/mod.ts";
-import { assert } from "../../../../test_util/std/testing/asserts.ts";
+import { assert } from "../../../../test_util/std/assert/mod.ts";
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
 import { copyFile, copyFileSync, existsSync } from "node:fs";
 
diff --git a/cli/tests/unit_node/_fs/_fs_dir_test.ts b/cli/tests/unit_node/_fs/_fs_dir_test.ts
index 7f53ee1d36..eb8a0073b2 100644
--- a/cli/tests/unit_node/_fs/_fs_dir_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_dir_test.ts
@@ -3,7 +3,7 @@ import {
   assert,
   assertEquals,
   fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
 import { Dir as DirOrig, type Dirent } from "node:fs";
 
diff --git a/cli/tests/unit_node/_fs/_fs_dirent_test.ts b/cli/tests/unit_node/_fs/_fs_dirent_test.ts
index eca693f6fb..8a3f066ea2 100644
--- a/cli/tests/unit_node/_fs/_fs_dirent_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_dirent_test.ts
@@ -3,7 +3,7 @@ import {
   assert,
   assertEquals,
   assertThrows,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { Dirent as Dirent_ } from "node:fs";
 
 // deno-lint-ignore no-explicit-any
diff --git a/cli/tests/unit_node/_fs/_fs_exists_test.ts b/cli/tests/unit_node/_fs/_fs_exists_test.ts
index 9af5b32081..49dad173df 100644
--- a/cli/tests/unit_node/_fs/_fs_exists_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_exists_test.ts
@@ -3,7 +3,7 @@ import {
   assert,
   assertEquals,
   assertStringIncludes,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { exists, existsSync } from "node:fs";
 import { promisify } from "node:util";
 
diff --git a/cli/tests/unit_node/_fs/_fs_fdatasync_test.ts b/cli/tests/unit_node/_fs/_fs_fdatasync_test.ts
index d7ccae927f..6253dffffa 100644
--- a/cli/tests/unit_node/_fs/_fs_fdatasync_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_fdatasync_test.ts
@@ -1,8 +1,5 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
-import {
-  assertEquals,
-  fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+import { assertEquals, fail } from "../../../../test_util/std/assert/mod.ts";
 import { fdatasync, fdatasyncSync } from "node:fs";
 
 Deno.test({
diff --git a/cli/tests/unit_node/_fs/_fs_fstat_test.ts b/cli/tests/unit_node/_fs/_fs_fstat_test.ts
index 70c3db254a..fe578aa514 100644
--- a/cli/tests/unit_node/_fs/_fs_fstat_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_fstat_test.ts
@@ -1,6 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 import { fstat, fstatSync } from "node:fs";
-import { fail } from "../../../../test_util/std/testing/asserts.ts";
+import { fail } from "../../../../test_util/std/assert/mod.ts";
 import { assertStats, assertStatsBigInt } from "./_fs_stat_test.ts";
 import type { BigIntStats, Stats } from "node:fs";
 
diff --git a/cli/tests/unit_node/_fs/_fs_fsync_test.ts b/cli/tests/unit_node/_fs/_fs_fsync_test.ts
index 586c7d7e6c..0d055fdceb 100644
--- a/cli/tests/unit_node/_fs/_fs_fsync_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_fsync_test.ts
@@ -1,8 +1,5 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
-import {
-  assertEquals,
-  fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+import { assertEquals, fail } from "../../../../test_util/std/assert/mod.ts";
 import { fsync, fsyncSync } from "node:fs";
 
 Deno.test({
diff --git a/cli/tests/unit_node/_fs/_fs_ftruncate_test.ts b/cli/tests/unit_node/_fs/_fs_ftruncate_test.ts
index 46787bec13..67bc8262e1 100644
--- a/cli/tests/unit_node/_fs/_fs_ftruncate_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_ftruncate_test.ts
@@ -3,7 +3,7 @@ import {
   assertEquals,
   assertThrows,
   fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { ftruncate, ftruncateSync } from "node:fs";
 
 Deno.test({
diff --git a/cli/tests/unit_node/_fs/_fs_futimes_test.ts b/cli/tests/unit_node/_fs/_fs_futimes_test.ts
index c5b9012a53..3b76807ffb 100644
--- a/cli/tests/unit_node/_fs/_fs_futimes_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_futimes_test.ts
@@ -3,7 +3,7 @@ import {
   assertEquals,
   assertThrows,
   fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { futimes, futimesSync } from "node:fs";
 
 const randomDate = new Date(Date.now() + 1000);
diff --git a/cli/tests/unit_node/_fs/_fs_handle_test.ts b/cli/tests/unit_node/_fs/_fs_handle_test.ts
index 8cfbf64906..2322068607 100644
--- a/cli/tests/unit_node/_fs/_fs_handle_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_handle_test.ts
@@ -2,10 +2,7 @@
 import * as path from "../../../../test_util/std/path/mod.ts";
 import { Buffer } from "node:buffer";
 import * as fs from "node:fs/promises";
-import {
-  assert,
-  assertEquals,
-} from "../../../../test_util/std/testing/asserts.ts";
+import { assert, assertEquals } from "../../../../test_util/std/assert/mod.ts";
 
 const moduleDir = path.dirname(path.fromFileUrl(import.meta.url));
 const testData = path.resolve(moduleDir, "testdata", "hello.txt");
diff --git a/cli/tests/unit_node/_fs/_fs_link_test.ts b/cli/tests/unit_node/_fs/_fs_link_test.ts
index a96457eb06..3594b56fe1 100644
--- a/cli/tests/unit_node/_fs/_fs_link_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_link_test.ts
@@ -4,7 +4,7 @@ import {
   assert,
   assertEquals,
   fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
 import { link, linkSync } from "node:fs";
 
diff --git a/cli/tests/unit_node/_fs/_fs_lstat_test.ts b/cli/tests/unit_node/_fs/_fs_lstat_test.ts
index cd11279898..c09f840eb2 100644
--- a/cli/tests/unit_node/_fs/_fs_lstat_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_lstat_test.ts
@@ -1,6 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 import { lstat, lstatSync } from "node:fs";
-import { fail } from "../../../../test_util/std/testing/asserts.ts";
+import { fail } from "../../../../test_util/std/assert/mod.ts";
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
 import { assertStats, assertStatsBigInt } from "./_fs_stat_test.ts";
 import type { BigIntStats, Stats } from "node:fs";
diff --git a/cli/tests/unit_node/_fs/_fs_mkdir_test.ts b/cli/tests/unit_node/_fs/_fs_mkdir_test.ts
index 0deae9276d..b55ffd4a45 100644
--- a/cli/tests/unit_node/_fs/_fs_mkdir_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_mkdir_test.ts
@@ -1,6 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 import * as path from "../../../../test_util/std/path/mod.ts";
-import { assert } from "../../../../test_util/std/testing/asserts.ts";
+import { assert } from "../../../../test_util/std/assert/mod.ts";
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
 import { existsSync, mkdir, mkdirSync } from "node:fs";
 
diff --git a/cli/tests/unit_node/_fs/_fs_mkdtemp_test.ts b/cli/tests/unit_node/_fs/_fs_mkdtemp_test.ts
index 998128596d..e1e2c148e6 100644
--- a/cli/tests/unit_node/_fs/_fs_mkdtemp_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_mkdtemp_test.ts
@@ -3,7 +3,7 @@ import {
   assert,
   assertRejects,
   assertThrows,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { EncodingOption, existsSync, mkdtemp, mkdtempSync } from "node:fs";
 import { env } from "node:process";
 import { promisify } from "node:util";
diff --git a/cli/tests/unit_node/_fs/_fs_open_test.ts b/cli/tests/unit_node/_fs/_fs_open_test.ts
index d9f5e57963..f7a7192b8a 100644
--- a/cli/tests/unit_node/_fs/_fs_open_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_open_test.ts
@@ -14,7 +14,7 @@ import {
   assertEquals,
   assertThrows,
   fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
 import { open, openSync } from "node:fs";
 import { join, parse } from "node:path";
diff --git a/cli/tests/unit_node/_fs/_fs_opendir_test.ts b/cli/tests/unit_node/_fs/_fs_opendir_test.ts
index 196bea7778..5219643f21 100644
--- a/cli/tests/unit_node/_fs/_fs_opendir_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_opendir_test.ts
@@ -6,7 +6,7 @@ import {
   assertFalse,
   assertInstanceOf,
   assertThrows,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { opendir, opendirSync } from "node:fs";
 import { Buffer } from "node:buffer";
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
diff --git a/cli/tests/unit_node/_fs/_fs_readFile_test.ts b/cli/tests/unit_node/_fs/_fs_readFile_test.ts
index 8fa9e7b010..335a7cfc76 100644
--- a/cli/tests/unit_node/_fs/_fs_readFile_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_readFile_test.ts
@@ -2,10 +2,7 @@
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
 import { readFile, readFileSync } from "node:fs";
 import * as path from "../../../../test_util/std/path/mod.ts";
-import {
-  assert,
-  assertEquals,
-} from "../../../../test_util/std/testing/asserts.ts";
+import { assert, assertEquals } from "../../../../test_util/std/assert/mod.ts";
 
 const moduleDir = path.dirname(path.fromFileUrl(import.meta.url));
 const testData = path.resolve(moduleDir, "testdata", "hello.txt");
diff --git a/cli/tests/unit_node/_fs/_fs_read_test.ts b/cli/tests/unit_node/_fs/_fs_read_test.ts
index 3ca303037a..d61217304c 100644
--- a/cli/tests/unit_node/_fs/_fs_read_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_read_test.ts
@@ -4,7 +4,7 @@ import {
   assertFalse,
   assertMatch,
   assertStrictEquals,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { read, readSync } from "node:fs";
 import { open, openSync } from "node:fs";
 import { Buffer } from "node:buffer";
diff --git a/cli/tests/unit_node/_fs/_fs_readdir_test.ts b/cli/tests/unit_node/_fs/_fs_readdir_test.ts
index bb1df079f9..b2ec353c54 100644
--- a/cli/tests/unit_node/_fs/_fs_readdir_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_readdir_test.ts
@@ -3,7 +3,7 @@ import {
   assertEquals,
   assertNotEquals,
   fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
 import { readdir, readdirSync } from "node:fs";
 import { join } from "../../../../test_util/std/path/mod.ts";
diff --git a/cli/tests/unit_node/_fs/_fs_readlink_test.ts b/cli/tests/unit_node/_fs/_fs_readlink_test.ts
index 7f0d3cef83..0d134023bf 100644
--- a/cli/tests/unit_node/_fs/_fs_readlink_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_readlink_test.ts
@@ -1,10 +1,7 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
 import { readlink, readlinkSync } from "node:fs";
-import {
-  assert,
-  assertEquals,
-} from "../../../../test_util/std/testing/asserts.ts";
+import { assert, assertEquals } from "../../../../test_util/std/assert/mod.ts";
 import * as path from "../../../../test_util/std/path/mod.ts";
 
 const testDir = Deno.makeTempDirSync();
diff --git a/cli/tests/unit_node/_fs/_fs_realpath_test.ts b/cli/tests/unit_node/_fs/_fs_realpath_test.ts
index 871ebe9836..df7fb8da34 100644
--- a/cli/tests/unit_node/_fs/_fs_realpath_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_realpath_test.ts
@@ -1,6 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 import * as path from "../../../../test_util/std/path/mod.ts";
-import { assertEquals } from "../../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../../test_util/std/assert/mod.ts";
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
 import { realpath, realpathSync } from "node:fs";
 
diff --git a/cli/tests/unit_node/_fs/_fs_rename_test.ts b/cli/tests/unit_node/_fs/_fs_rename_test.ts
index cefd7f61ad..8310cdb58a 100644
--- a/cli/tests/unit_node/_fs/_fs_rename_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_rename_test.ts
@@ -1,8 +1,5 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
-import {
-  assertEquals,
-  fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+import { assertEquals, fail } from "../../../../test_util/std/assert/mod.ts";
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
 import { rename, renameSync } from "node:fs";
 import { existsSync } from "node:fs";
diff --git a/cli/tests/unit_node/_fs/_fs_rm_test.ts b/cli/tests/unit_node/_fs/_fs_rm_test.ts
index e196ee08a9..cb4ae1aa16 100644
--- a/cli/tests/unit_node/_fs/_fs_rm_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_rm_test.ts
@@ -4,7 +4,7 @@ import {
   assertRejects,
   assertThrows,
   fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { rm, rmSync } from "node:fs";
 import { closeSync, existsSync } from "node:fs";
 import { join } from "../../../../test_util/std/path/mod.ts";
diff --git a/cli/tests/unit_node/_fs/_fs_rmdir_test.ts b/cli/tests/unit_node/_fs/_fs_rmdir_test.ts
index 85aaa2ec37..7bbae6270c 100644
--- a/cli/tests/unit_node/_fs/_fs_rmdir_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_rmdir_test.ts
@@ -1,8 +1,5 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
-import {
-  assertEquals,
-  fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+import { assertEquals, fail } from "../../../../test_util/std/assert/mod.ts";
 import { rmdir, rmdirSync } from "node:fs";
 import { closeSync } from "node:fs";
 import { existsSync } from "node:fs";
diff --git a/cli/tests/unit_node/_fs/_fs_stat_test.ts b/cli/tests/unit_node/_fs/_fs_stat_test.ts
index b9e33c5074..776d89ecc6 100644
--- a/cli/tests/unit_node/_fs/_fs_stat_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_stat_test.ts
@@ -1,10 +1,7 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
 import { BigIntStats, stat, Stats, statSync } from "node:fs";
-import {
-  assertEquals,
-  fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+import { assertEquals, fail } from "../../../../test_util/std/assert/mod.ts";
 
 export function assertStats(actual: Stats, expected: Deno.FileInfo) {
   assertEquals(actual.dev, expected.dev);
diff --git a/cli/tests/unit_node/_fs/_fs_symlink_test.ts b/cli/tests/unit_node/_fs/_fs_symlink_test.ts
index 72747ebfaa..f16188feec 100644
--- a/cli/tests/unit_node/_fs/_fs_symlink_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_symlink_test.ts
@@ -3,7 +3,7 @@ import {
   assert,
   assertThrows,
   fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { symlink, symlinkSync } from "node:fs";
 
 Deno.test({
diff --git a/cli/tests/unit_node/_fs/_fs_truncate_test.ts b/cli/tests/unit_node/_fs/_fs_truncate_test.ts
index 3aff3fac27..98fb6c5f0a 100644
--- a/cli/tests/unit_node/_fs/_fs_truncate_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_truncate_test.ts
@@ -3,7 +3,7 @@ import {
   assertEquals,
   assertThrows,
   fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { truncate, truncateSync } from "node:fs";
 
 Deno.test({
diff --git a/cli/tests/unit_node/_fs/_fs_unlink_test.ts b/cli/tests/unit_node/_fs/_fs_unlink_test.ts
index a33534fbb6..b92224844b 100644
--- a/cli/tests/unit_node/_fs/_fs_unlink_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_unlink_test.ts
@@ -1,8 +1,5 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
-import {
-  assertEquals,
-  fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+import { assertEquals, fail } from "../../../../test_util/std/assert/mod.ts";
 import { existsSync } from "node:fs";
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
 import { unlink, unlinkSync } from "node:fs";
diff --git a/cli/tests/unit_node/_fs/_fs_utimes_test.ts b/cli/tests/unit_node/_fs/_fs_utimes_test.ts
index 170c0d73d8..a2d3e605c1 100644
--- a/cli/tests/unit_node/_fs/_fs_utimes_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_utimes_test.ts
@@ -3,7 +3,7 @@ import {
   assertEquals,
   assertThrows,
   fail,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { utimes, utimesSync } from "node:fs";
 
 const randomDate = new Date(Date.now() + 1000);
diff --git a/cli/tests/unit_node/_fs/_fs_watch_test.ts b/cli/tests/unit_node/_fs/_fs_watch_test.ts
index 26b0da8b97..9163435994 100644
--- a/cli/tests/unit_node/_fs/_fs_watch_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_watch_test.ts
@@ -1,6 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 import { watch } from "node:fs";
-import { assertEquals } from "../../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../../test_util/std/assert/mod.ts";
 
 function wait(time: number) {
   return new Promise((resolve) => {
diff --git a/cli/tests/unit_node/_fs/_fs_writeFile_test.ts b/cli/tests/unit_node/_fs/_fs_writeFile_test.ts
index 9f123e005c..b96f4d29b5 100644
--- a/cli/tests/unit_node/_fs/_fs_writeFile_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_writeFile_test.ts
@@ -5,7 +5,7 @@ import {
   assertNotEquals,
   assertRejects,
   assertThrows,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { writeFile, writeFileSync } from "node:fs";
 import * as path from "../../../../test_util/std/path/mod.ts";
 
diff --git a/cli/tests/unit_node/_fs/_fs_write_test.ts b/cli/tests/unit_node/_fs/_fs_write_test.ts
index 7baa81b7df..afc15f29ff 100644
--- a/cli/tests/unit_node/_fs/_fs_write_test.ts
+++ b/cli/tests/unit_node/_fs/_fs_write_test.ts
@@ -1,6 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 import { write, writeSync } from "node:fs";
-import { assertEquals } from "../../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../../test_util/std/assert/mod.ts";
 import { Buffer } from "node:buffer";
 
 const decoder = new TextDecoder("utf-8");
diff --git a/cli/tests/unit_node/_test_utils.ts b/cli/tests/unit_node/_test_utils.ts
index 3220677198..514818bced 100644
--- a/cli/tests/unit_node/_test_utils.ts
+++ b/cli/tests/unit_node/_test_utils.ts
@@ -3,7 +3,7 @@
 import {
   assert,
   assertStringIncludes,
-} from "../../../test_util/std/testing/asserts.ts";
+} from "../../../test_util/std/assert/mod.ts";
 
 /** Asserts that an error thrown in a callback will not be wrongly caught. */
 export async function assertCallbackErrorUncaught(
diff --git a/cli/tests/unit_node/assertion_error_test.ts b/cli/tests/unit_node/assertion_error_test.ts
index ab6ed5bc3b..ac06369422 100644
--- a/cli/tests/unit_node/assertion_error_test.ts
+++ b/cli/tests/unit_node/assertion_error_test.ts
@@ -3,7 +3,7 @@ import { stripColor } from "../../../test_util/std/fmt/colors.ts";
 import {
   assert,
   assertStrictEquals,
-} from "../../../test_util/std/testing/asserts.ts";
+} from "../../../test_util/std/assert/mod.ts";
 import { AssertionError } from "node:assert";
 
 Deno.test({
diff --git a/cli/tests/unit_node/async_hooks_test.ts b/cli/tests/unit_node/async_hooks_test.ts
index 035e970d40..861da8a2d3 100644
--- a/cli/tests/unit_node/async_hooks_test.ts
+++ b/cli/tests/unit_node/async_hooks_test.ts
@@ -1,9 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 import { AsyncLocalStorage, AsyncResource } from "node:async_hooks";
-import {
-  assert,
-  assertEquals,
-} from "../../../test_util/std/testing/asserts.ts";
+import { assert, assertEquals } from "../../../test_util/std/assert/mod.ts";
 
 Deno.test(async function foo() {
   const asyncLocalStorage = new AsyncLocalStorage();
diff --git a/cli/tests/unit_node/buffer_test.ts b/cli/tests/unit_node/buffer_test.ts
index 5244764c65..cfd1bf748d 100644
--- a/cli/tests/unit_node/buffer_test.ts
+++ b/cli/tests/unit_node/buffer_test.ts
@@ -3,7 +3,7 @@ import { Buffer } from "node:buffer";
 import {
   assertEquals,
   assertThrows,
-} from "../../../test_util/std/testing/asserts.ts";
+} from "../../../test_util/std/assert/mod.ts";
 
 Deno.test({
   name: "[node/buffer] alloc fails if size is not a number",
diff --git a/cli/tests/unit_node/child_process_test.ts b/cli/tests/unit_node/child_process_test.ts
index d5d41125d6..79617cf3d4 100644
--- a/cli/tests/unit_node/child_process_test.ts
+++ b/cli/tests/unit_node/child_process_test.ts
@@ -9,7 +9,7 @@ import {
   assertNotStrictEquals,
   assertStrictEquals,
   assertStringIncludes,
-} from "../../../test_util/std/testing/asserts.ts";
+} from "../../../test_util/std/assert/mod.ts";
 import * as path from "../../../test_util/std/path/mod.ts";
 
 const { spawn, spawnSync, execFile, execFileSync, ChildProcess } = CP;
diff --git a/cli/tests/unit_node/crypto/crypto_cipher_gcm_test.ts b/cli/tests/unit_node/crypto/crypto_cipher_gcm_test.ts
index e1ef440581..2ed9c1d87b 100644
--- a/cli/tests/unit_node/crypto/crypto_cipher_gcm_test.ts
+++ b/cli/tests/unit_node/crypto/crypto_cipher_gcm_test.ts
@@ -4,7 +4,7 @@ import crypto from "node:crypto";
 import { Buffer } from "node:buffer";
 import testVectors128 from "./gcmEncryptExtIV128.json" assert { type: "json" };
 import testVectors256 from "./gcmEncryptExtIV256.json" assert { type: "json" };
-import { assertEquals } from "../../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../../test_util/std/assert/mod.ts";
 
 const aesGcm = (bits: string, key: Uint8Array) => {
   const ALGO = bits == "128" ? `aes-128-gcm` : `aes-256-gcm`;
diff --git a/cli/tests/unit_node/crypto/crypto_cipher_test.ts b/cli/tests/unit_node/crypto/crypto_cipher_test.ts
index 0eecaacf06..52a9b06ec7 100644
--- a/cli/tests/unit_node/crypto/crypto_cipher_test.ts
+++ b/cli/tests/unit_node/crypto/crypto_cipher_test.ts
@@ -6,7 +6,7 @@ import { buffer, text } from "node:stream/consumers";
 import {
   assertEquals,
   assertThrows,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 
 const rsaPrivateKey = Deno.readTextFileSync(
   new URL("../testdata/rsa_private.pem", import.meta.url),
diff --git a/cli/tests/unit_node/crypto/crypto_hash_test.ts b/cli/tests/unit_node/crypto/crypto_hash_test.ts
index 4b0aedf039..3167628cee 100644
--- a/cli/tests/unit_node/crypto/crypto_hash_test.ts
+++ b/cli/tests/unit_node/crypto/crypto_hash_test.ts
@@ -8,10 +8,7 @@ import {
 } from "node:crypto";
 import { Buffer } from "node:buffer";
 import { Readable } from "node:stream";
-import {
-  assert,
-  assertEquals,
-} from "../../../../test_util/std/testing/asserts.ts";
+import { assert, assertEquals } from "../../../../test_util/std/assert/mod.ts";
 
 // https://github.com/denoland/deno/issues/18140
 Deno.test({
diff --git a/cli/tests/unit_node/crypto/crypto_key_test.ts b/cli/tests/unit_node/crypto/crypto_key_test.ts
index e59874d7a5..b4cc6e69e8 100644
--- a/cli/tests/unit_node/crypto/crypto_key_test.ts
+++ b/cli/tests/unit_node/crypto/crypto_key_test.ts
@@ -14,7 +14,7 @@ import { Buffer } from "node:buffer";
 import {
   assertEquals,
   assertThrows,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { createHmac } from "node:crypto";
 
 const RUN_SLOW_TESTS = Deno.env.get("SLOW_TESTS") === "1";
diff --git a/cli/tests/unit_node/crypto/crypto_sign_test.ts b/cli/tests/unit_node/crypto/crypto_sign_test.ts
index 9988ed71c3..58107b563a 100644
--- a/cli/tests/unit_node/crypto/crypto_sign_test.ts
+++ b/cli/tests/unit_node/crypto/crypto_sign_test.ts
@@ -1,9 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 
-import {
-  assert,
-  assertEquals,
-} from "../../../../test_util/std/testing/asserts.ts";
+import { assert, assertEquals } from "../../../../test_util/std/assert/mod.ts";
 import { createSign, createVerify, sign, verify } from "node:crypto";
 import { Buffer } from "node:buffer";
 
diff --git a/cli/tests/unit_node/fs_test.ts b/cli/tests/unit_node/fs_test.ts
index 3e9ad44802..310113233e 100644
--- a/cli/tests/unit_node/fs_test.ts
+++ b/cli/tests/unit_node/fs_test.ts
@@ -1,9 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 
-import {
-  assert,
-  assertThrows,
-} from "../../../test_util/std/testing/asserts.ts";
+import { assert, assertThrows } from "../../../test_util/std/assert/mod.ts";
 import { join } from "node:path";
 import { tmpdir } from "node:os";
 import { mkdtempSync, readFileSync, writeFileSync } from "node:fs";
diff --git a/cli/tests/unit_node/http2_test.ts b/cli/tests/unit_node/http2_test.ts
index 87ad6c7485..461986c819 100644
--- a/cli/tests/unit_node/http2_test.ts
+++ b/cli/tests/unit_node/http2_test.ts
@@ -2,7 +2,7 @@
 
 import * as http2 from "node:http2";
 import * as net from "node:net";
-import { assertEquals } from "../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../test_util/std/assert/mod.ts";
 
 for (const url of ["http://127.0.0.1:4246", "https://127.0.0.1:4247"]) {
   Deno.test(`[node/http2 client] ${url}`, {
diff --git a/cli/tests/unit_node/http_test.ts b/cli/tests/unit_node/http_test.ts
index ef78432cb0..b2b8eda0f6 100644
--- a/cli/tests/unit_node/http_test.ts
+++ b/cli/tests/unit_node/http_test.ts
@@ -7,7 +7,7 @@ import {
   assert,
   assertEquals,
   fail,
-} from "../../../test_util/std/testing/asserts.ts";
+} from "../../../test_util/std/assert/mod.ts";
 import { assertSpyCalls, spy } from "../../../test_util/std/testing/mock.ts";
 
 import { gzip } from "node:zlib";
diff --git a/cli/tests/unit_node/internal/_randomBytes_test.ts b/cli/tests/unit_node/internal/_randomBytes_test.ts
index 1072ce164b..69845705e8 100644
--- a/cli/tests/unit_node/internal/_randomBytes_test.ts
+++ b/cli/tests/unit_node/internal/_randomBytes_test.ts
@@ -4,7 +4,7 @@ import {
   assertEquals,
   assertRejects,
   assertThrows,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 import { assertCallbackErrorUncaught } from "../_test_utils.ts";
 import { randomBytes } from "node:crypto";
 
diff --git a/cli/tests/unit_node/internal/_randomFill_test.ts b/cli/tests/unit_node/internal/_randomFill_test.ts
index 5d56ca65a1..5afcf23d58 100644
--- a/cli/tests/unit_node/internal/_randomFill_test.ts
+++ b/cli/tests/unit_node/internal/_randomFill_test.ts
@@ -5,7 +5,7 @@ import {
   assertEquals,
   assertNotEquals,
   assertThrows,
-} from "../../../../test_util/std/testing/asserts.ts";
+} from "../../../../test_util/std/assert/mod.ts";
 
 const validateNonZero = (buf: Buffer) => {
   if (!buf.some((ch) => ch > 0)) throw new Error("Error");
diff --git a/cli/tests/unit_node/internal/_randomInt_test.ts b/cli/tests/unit_node/internal/_randomInt_test.ts
index 4bed13498e..36d8a2146a 100644
--- a/cli/tests/unit_node/internal/_randomInt_test.ts
+++ b/cli/tests/unit_node/internal/_randomInt_test.ts
@@ -1,9 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 import { randomInt } from "node:crypto";
-import {
-  assert,
-  assertThrows,
-} from "../../../../test_util/std/testing/asserts.ts";
+import { assert, assertThrows } from "../../../../test_util/std/assert/mod.ts";
 
 const between = (x: number, min: number, max: number) => x >= min && x < max;
 
diff --git a/cli/tests/unit_node/internal/pbkdf2_test.ts b/cli/tests/unit_node/internal/pbkdf2_test.ts
index 3d3378769d..79c379d9a2 100644
--- a/cli/tests/unit_node/internal/pbkdf2_test.ts
+++ b/cli/tests/unit_node/internal/pbkdf2_test.ts
@@ -1,9 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 import { pbkdf2, pbkdf2Sync } from "node:crypto";
-import {
-  assert,
-  assertEquals,
-} from "../../../../test_util/std/testing/asserts.ts";
+import { assert, assertEquals } from "../../../../test_util/std/assert/mod.ts";
 
 type Algorithms =
   | "md5"
diff --git a/cli/tests/unit_node/internal/scrypt_test.ts b/cli/tests/unit_node/internal/scrypt_test.ts
index 83830f8e4e..4e75d9ac71 100644
--- a/cli/tests/unit_node/internal/scrypt_test.ts
+++ b/cli/tests/unit_node/internal/scrypt_test.ts
@@ -1,7 +1,7 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 import { scrypt, scryptSync } from "node:crypto";
 import { Buffer } from "node:buffer";
-import { assertEquals } from "../../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../../test_util/std/assert/mod.ts";
 
 Deno.test("scrypt works correctly", async () => {
   const { promise, resolve } = Promise.withResolvers<boolean>();
diff --git a/cli/tests/unit_node/module_test.ts b/cli/tests/unit_node/module_test.ts
index 9818f4766c..8ecef7fa40 100644
--- a/cli/tests/unit_node/module_test.ts
+++ b/cli/tests/unit_node/module_test.ts
@@ -1,10 +1,7 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 
 import { createRequire, Module } from "node:module";
-import {
-  assert,
-  assertEquals,
-} from "../../../test_util/std/testing/asserts.ts";
+import { assert, assertEquals } from "../../../test_util/std/assert/mod.ts";
 import process from "node:process";
 import * as path from "node:path";
 
diff --git a/cli/tests/unit_node/net_test.ts b/cli/tests/unit_node/net_test.ts
index e55adafcb0..0371763035 100644
--- a/cli/tests/unit_node/net_test.ts
+++ b/cli/tests/unit_node/net_test.ts
@@ -1,10 +1,7 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 
 import * as net from "node:net";
-import {
-  assert,
-  assertEquals,
-} from "../../../test_util/std/testing/asserts.ts";
+import { assert, assertEquals } from "../../../test_util/std/assert/mod.ts";
 import * as path from "../../../test_util/std/path/mod.ts";
 import * as http from "node:http";
 
diff --git a/cli/tests/unit_node/os_test.ts b/cli/tests/unit_node/os_test.ts
index 54dc375bbf..7ce29bea33 100644
--- a/cli/tests/unit_node/os_test.ts
+++ b/cli/tests/unit_node/os_test.ts
@@ -7,7 +7,7 @@ import {
   assertEquals,
   assertNotEquals,
   assertThrows,
-} from "../../../test_util/std/testing/asserts.ts";
+} from "../../../test_util/std/assert/mod.ts";
 
 Deno.test({
   name: "build architecture is a string",
diff --git a/cli/tests/unit_node/path_test.ts b/cli/tests/unit_node/path_test.ts
index 48298afec3..8b1af9ee19 100644
--- a/cli/tests/unit_node/path_test.ts
+++ b/cli/tests/unit_node/path_test.ts
@@ -4,7 +4,7 @@ import path from "node:path";
 import posix from "node:path/posix";
 import win32 from "node:path/win32";
 
-import { assertStrictEquals } from "../../../test_util/std/testing/asserts.ts";
+import { assertStrictEquals } from "../../../test_util/std/assert/mod.ts";
 
 Deno.test("[node/path] posix and win32 objects", () => {
   assertStrictEquals(path.posix, posix);
diff --git a/cli/tests/unit_node/perf_hooks_test.ts b/cli/tests/unit_node/perf_hooks_test.ts
index d1ab8c12c9..e7cda40ab3 100644
--- a/cli/tests/unit_node/perf_hooks_test.ts
+++ b/cli/tests/unit_node/perf_hooks_test.ts
@@ -4,7 +4,7 @@ import { performance } from "node:perf_hooks";
 import {
   assertEquals,
   assertThrows,
-} from "../../../test_util/std/testing/asserts.ts";
+} from "../../../test_util/std/assert/mod.ts";
 
 Deno.test({
   name: "[perf_hooks] performance",
diff --git a/cli/tests/unit_node/process_test.ts b/cli/tests/unit_node/process_test.ts
index e79ff34680..69af8a3ad1 100644
--- a/cli/tests/unit_node/process_test.ts
+++ b/cli/tests/unit_node/process_test.ts
@@ -11,7 +11,7 @@ import {
   assertObjectMatch,
   assertStrictEquals,
   assertThrows,
-} from "../../../test_util/std/testing/asserts.ts";
+} from "../../../test_util/std/assert/mod.ts";
 import { stripColor } from "../../../test_util/std/fmt/colors.ts";
 import * as path from "../../../test_util/std/path/mod.ts";
 import { delay } from "../../../test_util/std/async/delay.ts";
diff --git a/cli/tests/unit_node/querystring_test.ts b/cli/tests/unit_node/querystring_test.ts
index 0b3b22d62d..bd5548223e 100644
--- a/cli/tests/unit_node/querystring_test.ts
+++ b/cli/tests/unit_node/querystring_test.ts
@@ -1,5 +1,5 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
-import { assertEquals } from "../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../test_util/std/assert/mod.ts";
 import { parse, stringify } from "node:querystring";
 
 Deno.test({
diff --git a/cli/tests/unit_node/readline_test.ts b/cli/tests/unit_node/readline_test.ts
index 914d23e4af..8978b53ff5 100644
--- a/cli/tests/unit_node/readline_test.ts
+++ b/cli/tests/unit_node/readline_test.ts
@@ -1,6 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 import { createInterface, Interface } from "node:readline";
-import { assertInstanceOf } from "../../../test_util/std/testing/asserts.ts";
+import { assertInstanceOf } from "../../../test_util/std/assert/mod.ts";
 import { Readable, Writable } from "node:stream";
 
 Deno.test("[node/readline] createInstance", () => {
diff --git a/cli/tests/unit_node/repl_test.ts b/cli/tests/unit_node/repl_test.ts
index e703d69f8b..9df8d03757 100644
--- a/cli/tests/unit_node/repl_test.ts
+++ b/cli/tests/unit_node/repl_test.ts
@@ -2,7 +2,7 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 
 import repl from "node:repl";
-import { assert } from "../../../test_util/std/testing/asserts.ts";
+import { assert } from "../../../test_util/std/assert/mod.ts";
 
 Deno.test({
   name: "repl module exports",
diff --git a/cli/tests/unit_node/stream_test.ts b/cli/tests/unit_node/stream_test.ts
index 058d3ca7c6..9d3d3df082 100644
--- a/cli/tests/unit_node/stream_test.ts
+++ b/cli/tests/unit_node/stream_test.ts
@@ -1,6 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 
-import { assert } from "../../../test_util/std/testing/asserts.ts";
+import { assert } from "../../../test_util/std/assert/mod.ts";
 import { fromFileUrl, relative } from "../../../test_util/std/path/mod.ts";
 import { pipeline } from "node:stream/promises";
 import { createReadStream, createWriteStream } from "node:fs";
diff --git a/cli/tests/unit_node/string_decoder_test.ts b/cli/tests/unit_node/string_decoder_test.ts
index 93ff69dc32..facd4cc4ec 100644
--- a/cli/tests/unit_node/string_decoder_test.ts
+++ b/cli/tests/unit_node/string_decoder_test.ts
@@ -1,5 +1,5 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
-import { assertEquals } from "../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../test_util/std/assert/mod.ts";
 import { Buffer } from "node:buffer";
 import { StringDecoder } from "node:string_decoder";
 
diff --git a/cli/tests/unit_node/timers_test.ts b/cli/tests/unit_node/timers_test.ts
index d110b44e45..f6c8f7773e 100644
--- a/cli/tests/unit_node/timers_test.ts
+++ b/cli/tests/unit_node/timers_test.ts
@@ -1,6 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 
-import { assert, fail } from "../../../test_util/std/testing/asserts.ts";
+import { assert, fail } from "../../../test_util/std/assert/mod.ts";
 import * as timers from "node:timers";
 import * as timersPromises from "node:timers/promises";
 
diff --git a/cli/tests/unit_node/tls_test.ts b/cli/tests/unit_node/tls_test.ts
index 0a3a91144c..a4d157d93d 100644
--- a/cli/tests/unit_node/tls_test.ts
+++ b/cli/tests/unit_node/tls_test.ts
@@ -3,7 +3,7 @@
 import {
   assertEquals,
   assertInstanceOf,
-} from "../../../test_util/std/testing/asserts.ts";
+} from "../../../test_util/std/assert/mod.ts";
 import { delay } from "../../../test_util/std/async/delay.ts";
 import { fromFileUrl, join } from "../../../test_util/std/path/mod.ts";
 import { serveTls } from "../../../test_util/std/http/server.ts";
diff --git a/cli/tests/unit_node/tty_test.ts b/cli/tests/unit_node/tty_test.ts
index d2bf32efcb..930f1aaffa 100644
--- a/cli/tests/unit_node/tty_test.ts
+++ b/cli/tests/unit_node/tty_test.ts
@@ -1,7 +1,7 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 // deno-lint-ignore-file no-explicit-any
 
-import { assert } from "../../../test_util/std/testing/asserts.ts";
+import { assert } from "../../../test_util/std/assert/mod.ts";
 import { isatty } from "node:tty";
 
 Deno.test("[node/tty isatty] returns true when fd is a tty, false otherwise", () => {
diff --git a/cli/tests/unit_node/util_test.ts b/cli/tests/unit_node/util_test.ts
index e90eed831c..0c95d9f5aa 100644
--- a/cli/tests/unit_node/util_test.ts
+++ b/cli/tests/unit_node/util_test.ts
@@ -5,7 +5,7 @@ import {
   assertEquals,
   assertStrictEquals,
   assertThrows,
-} from "../../../test_util/std/testing/asserts.ts";
+} from "../../../test_util/std/assert/mod.ts";
 import { stripColor } from "../../../test_util/std/fmt/colors.ts";
 import * as util from "node:util";
 
diff --git a/cli/tests/unit_node/v8_test.ts b/cli/tests/unit_node/v8_test.ts
index 724ac35044..8eb67701e5 100644
--- a/cli/tests/unit_node/v8_test.ts
+++ b/cli/tests/unit_node/v8_test.ts
@@ -4,7 +4,7 @@ import {
   getHeapStatistics,
   setFlagsFromString,
 } from "node:v8";
-import { assertEquals } from "../../../test_util/std/testing/asserts.ts";
+import { assertEquals } from "../../../test_util/std/assert/mod.ts";
 
 // https://github.com/nodejs/node/blob/a2bbe5ff216bc28f8dac1c36a8750025a93c3827/test/parallel/test-v8-version-tag.js#L6
 Deno.test({
diff --git a/cli/tests/unit_node/worker_threads_test.ts b/cli/tests/unit_node/worker_threads_test.ts
index a43a1b5060..0271995e64 100644
--- a/cli/tests/unit_node/worker_threads_test.ts
+++ b/cli/tests/unit_node/worker_threads_test.ts
@@ -4,7 +4,7 @@ import {
   assert,
   assertEquals,
   assertObjectMatch,
-} from "../../../test_util/std/testing/asserts.ts";
+} from "../../../test_util/std/assert/mod.ts";
 import { fromFileUrl, relative } from "../../../test_util/std/path/mod.ts";
 import * as workerThreads from "node:worker_threads";
 import { EventEmitter, once } from "node:events";
diff --git a/cli/tests/unit_node/zlib_test.ts b/cli/tests/unit_node/zlib_test.ts
index c025849dac..5f82b12027 100644
--- a/cli/tests/unit_node/zlib_test.ts
+++ b/cli/tests/unit_node/zlib_test.ts
@@ -1,9 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 
-import {
-  assert,
-  assertEquals,
-} from "../../../test_util/std/testing/asserts.ts";
+import { assert, assertEquals } from "../../../test_util/std/assert/mod.ts";
 import { fromFileUrl, relative } from "../../../test_util/std/path/mod.ts";
 import {
   brotliCompressSync,
diff --git a/cli/tsc/dts/lib.deno.ns.d.ts b/cli/tsc/dts/lib.deno.ns.d.ts
index ed24736fc8..401f9fa97f 100644
--- a/cli/tsc/dts/lib.deno.ns.d.ts
+++ b/cli/tsc/dts/lib.deno.ns.d.ts
@@ -544,7 +544,7 @@ declare namespace Deno {
      * Examples:
      *
      * ```ts
-     * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
+     * import { assertEquals } from "https://deno.land/std/assert/mod.ts";
      *
      * Deno.test({
      *   name: "inherit",
@@ -559,7 +559,7 @@ declare namespace Deno {
      * ```
      *
      * ```ts
-     * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
+     * import { assertEquals } from "https://deno.land/std/assert/mod.ts";
      *
      * Deno.test({
      *   name: "true",
@@ -574,7 +574,7 @@ declare namespace Deno {
      * ```
      *
      * ```ts
-     * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
+     * import { assertEquals } from "https://deno.land/std/assert/mod.ts";
      *
      * Deno.test({
      *   name: "false",
@@ -589,7 +589,7 @@ declare namespace Deno {
      * ```
      *
      * ```ts
-     * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
+     * import { assertEquals } from "https://deno.land/std/assert/mod.ts";
      *
      * Deno.test({
      *   name: "localhost:8080",
@@ -818,7 +818,7 @@ declare namespace Deno {
    * `fn` can be async if required.
    *
    * ```ts
-   * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
+   * import { assertEquals } from "https://deno.land/std/assert/mod.ts";
    *
    * Deno.test({
    *   name: "example test",
@@ -859,7 +859,7 @@ declare namespace Deno {
      * `fn` can be async if required.
      *
      * ```ts
-     * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
+     * import { assertEquals } from "https://deno.land/std/assert/mod.ts";
      *
      * Deno.test({
      *   name: "example test",
@@ -896,7 +896,7 @@ declare namespace Deno {
      * `fn` can be async if required.
      *
      * ```ts
-     * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
+     * import { assertEquals } from "https://deno.land/std/assert/mod.ts";
      *
      * Deno.test("My test description", () => {
      *   assertEquals("hello", "hello");
@@ -922,7 +922,7 @@ declare namespace Deno {
      * `fn` can be async if required. Declared function must have a name.
      *
      * ```ts
-     * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
+     * import { assertEquals } from "https://deno.land/std/assert/mod.ts";
      *
      * Deno.test(function myTestName() {
      *   assertEquals("hello", "hello");
@@ -945,7 +945,7 @@ declare namespace Deno {
      * `fn` can be async if required.
      *
      * ```ts
-     * import {assert, fail, assertEquals} from "https://deno.land/std/testing/asserts.ts";
+     * import {assert, fail, assertEquals} from "https://deno.land/std/assert/mod.ts";
      *
      * Deno.test("My test description", { permissions: { read: true } }, (): void => {
      *   assertEquals("hello", "hello");
@@ -972,7 +972,7 @@ declare namespace Deno {
      * `fn` can be async if required.
      *
      * ```ts
-     * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
+     * import { assertEquals } from "https://deno.land/std/assert/mod.ts";
      *
      * Deno.test(
      *   {
@@ -1010,7 +1010,7 @@ declare namespace Deno {
      * `fn` can be async if required. Declared function must have a name.
      *
      * ```ts
-     * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
+     * import { assertEquals } from "https://deno.land/std/assert/mod.ts";
      *
      * Deno.test(
      *   { permissions: { read: true } },
@@ -1234,7 +1234,7 @@ declare namespace Deno {
    * will await resolution to consider the test complete.
    *
    * ```ts
-   * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
+   * import { assertEquals } from "https://deno.land/std/assert/mod.ts";
    *
    * Deno.bench({
    *   name: "example test",
@@ -1273,7 +1273,7 @@ declare namespace Deno {
    * will await resolution to consider the test complete.
    *
    * ```ts
-   * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
+   * import { assertEquals } from "https://deno.land/std/assert/mod.ts";
    *
    * Deno.bench("My test description", () => {
    *   assertEquals("hello", "hello");
@@ -1301,7 +1301,7 @@ declare namespace Deno {
    * will await resolution to consider the test complete.
    *
    * ```ts
-   * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
+   * import { assertEquals } from "https://deno.land/std/assert/mod.ts";
    *
    * Deno.bench(function myTestName() {
    *   assertEquals("hello", "hello");
@@ -1326,7 +1326,7 @@ declare namespace Deno {
    * will await resolution to consider the test complete.
    *
    * ```ts
-   * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
+   * import { assertEquals } from "https://deno.land/std/assert/mod.ts";
    *
    * Deno.bench(
    *   "My test description",
@@ -1363,7 +1363,7 @@ declare namespace Deno {
    * will await resolution to consider the test complete.
    *
    * ```ts
-   * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
+   * import { assertEquals } from "https://deno.land/std/assert/mod.ts";
    *
    * Deno.bench(
    *   { name: "My test description", permissions: { read: true } },
@@ -1397,7 +1397,7 @@ declare namespace Deno {
    * will await resolution to consider the test complete.
    *
    * ```ts
-   * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
+   * import { assertEquals } from "https://deno.land/std/assert/mod.ts";
    *
    * Deno.bench(
    *   { permissions: { read: true } },
@@ -2451,7 +2451,7 @@ declare namespace Deno {
     /** Resolves to a {@linkcode Deno.FileInfo} for the file.
      *
      * ```ts
-     * import { assert } from "https://deno.land/std/testing/asserts.ts";
+     * import { assert } from "https://deno.land/std/assert/mod.ts";
      *
      * const file = await Deno.open("hello.txt");
      * const fileInfo = await file.stat();
@@ -2463,7 +2463,7 @@ declare namespace Deno {
     /** Synchronously returns a {@linkcode Deno.FileInfo} for the file.
      *
      * ```ts
-     * import { assert } from "https://deno.land/std/testing/asserts.ts";
+     * import { assert } from "https://deno.land/std/assert/mod.ts";
      *
      * const file = Deno.openSync("hello.txt")
      * const fileInfo = file.statSync();
@@ -3513,7 +3513,7 @@ declare namespace Deno {
    * of what it points to.
    *
    * ```ts
-   * import { assert } from "https://deno.land/std/testing/asserts.ts";
+   * import { assert } from "https://deno.land/std/assert/mod.ts";
    * const fileInfo = await Deno.lstat("hello.txt");
    * assert(fileInfo.isFile);
    * ```
@@ -3530,7 +3530,7 @@ declare namespace Deno {
    * returned instead of what it points to.
    *
    * ```ts
-   * import { assert } from "https://deno.land/std/testing/asserts.ts";
+   * import { assert } from "https://deno.land/std/assert/mod.ts";
    * const fileInfo = Deno.lstatSync("hello.txt");
    * assert(fileInfo.isFile);
    * ```
@@ -3546,7 +3546,7 @@ declare namespace Deno {
    * always follow symlinks.
    *
    * ```ts
-   * import { assert } from "https://deno.land/std/testing/asserts.ts";
+   * import { assert } from "https://deno.land/std/assert/mod.ts";
    * const fileInfo = await Deno.stat("hello.txt");
    * assert(fileInfo.isFile);
    * ```
@@ -3562,7 +3562,7 @@ declare namespace Deno {
    * `path`. Will always follow symlinks.
    *
    * ```ts
-   * import { assert } from "https://deno.land/std/testing/asserts.ts";
+   * import { assert } from "https://deno.land/std/assert/mod.ts";
    * const fileInfo = Deno.statSync("hello.txt");
    * assert(fileInfo.isFile);
    * ```
@@ -4794,7 +4794,7 @@ declare namespace Deno {
     /** Revokes a permission, and resolves to the state of the permission.
      *
      * ```ts
-     * import { assert } from "https://deno.land/std/testing/asserts.ts";
+     * import { assert } from "https://deno.land/std/assert/mod.ts";
      *
      * const status = await Deno.permissions.revoke({ name: "run" });
      * assert(status.state !== "granted")
@@ -4805,7 +4805,7 @@ declare namespace Deno {
     /** Revokes a permission, and returns the state of the permission.
      *
      * ```ts
-     * import { assert } from "https://deno.land/std/testing/asserts.ts";
+     * import { assert } from "https://deno.land/std/assert/mod.ts";
      *
      * const status = Deno.permissions.revokeSync({ name: "run" });
      * assert(status.state !== "granted")
@@ -4883,14 +4883,14 @@ declare namespace Deno {
    * ### Revoking
    *
    * ```ts
-   * import { assert } from "https://deno.land/std/testing/asserts.ts";
+   * import { assert } from "https://deno.land/std/assert/mod.ts";
    *
    * const status = await Deno.permissions.revoke({ name: "run" });
    * assert(status.state !== "granted")
    * ```
    *
    * ```ts
-   * import { assert } from "https://deno.land/std/testing/asserts.ts";
+   * import { assert } from "https://deno.land/std/assert/mod.ts";
    *
    * const status = Deno.permissions.revokeSync({ name: "run" });
    * assert(status.state !== "granted")
@@ -4986,13 +4986,13 @@ declare namespace Deno {
    * Give the following command line invocation of Deno:
    *
    * ```sh
-   * deno run --allow-read https://deno.land/std/examples/cat.ts /etc/passwd
+   * deno run --allow-read https://examples.deno.land/command-line-arguments.ts Sushi
    * ```
    *
    * Then `Deno.args` will contain:
    *
    * ```ts
-   * [ "/etc/passwd" ]
+   * [ "Sushi" ]
    * ```
    *
    * If you are looking for a structured way to parse arguments, there is the
@@ -5200,7 +5200,7 @@ declare namespace Deno {
    * Returns a `Deno.FileInfo` for the given file stream.
    *
    * ```ts
-   * import { assert } from "https://deno.land/std/testing/asserts.ts";
+   * import { assert } from "https://deno.land/std/assert/mod.ts";
    *
    * const file = await Deno.open("file.txt", { read: true });
    * const fileInfo = await Deno.fstat(file.rid);
@@ -5216,7 +5216,7 @@ declare namespace Deno {
    * stream.
    *
    * ```ts
-   * import { assert } from "https://deno.land/std/testing/asserts.ts";
+   * import { assert } from "https://deno.land/std/assert/mod.ts";
    *
    * const file = Deno.openSync("file.txt", { read: true });
    * const fileInfo = Deno.fstatSync(file.rid);
diff --git a/ext/node/polyfills/_util/std_asserts.ts b/ext/node/polyfills/_util/std_asserts.ts
index ac5715cae1..4258a74957 100644
--- a/ext/node/polyfills/_util/std_asserts.ts
+++ b/ext/node/polyfills/_util/std_asserts.ts
@@ -1,5 +1,5 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
-// vendored from std/testing/asserts.ts
+// vendored from std/assert/mod.ts
 
 // TODO(petamoriken): enable prefer-primordials for node polyfills
 // deno-lint-ignore-file prefer-primordials
diff --git a/test_ffi/tests/test.js b/test_ffi/tests/test.js
index b91dc43ded..c8a92e397b 100644
--- a/test_ffi/tests/test.js
+++ b/test_ffi/tests/test.js
@@ -10,7 +10,7 @@ import {
   assertInstanceOf,
   assertEquals,
   assertFalse,
-} from "../../test_util/std/testing/asserts.ts";
+} from "../../test_util/std/assert/mod.ts";
 
 const targetDir = Deno.execPath().replace(/[^\/\\]+$/, "");
 const [libPrefix, libSuffix] = {
diff --git a/test_napi/common.js b/test_napi/common.js
index ede0456669..6ed9c63a06 100644
--- a/test_napi/common.js
+++ b/test_napi/common.js
@@ -5,7 +5,7 @@ export {
   assertEquals,
   assertRejects,
   assertThrows,
-} from "../test_util/std/testing/asserts.ts";
+} from "../test_util/std/assert/mod.ts";
 export { fromFileUrl } from "../test_util/std/path/mod.ts";
 import process from "node:process";
 
diff --git a/test_util/std b/test_util/std
index b23a76a47a..e0ef24091e 160000
--- a/test_util/std
+++ b/test_util/std
@@ -1 +1 @@
-Subproject commit b23a76a47adaf63b5493761a87e6dd0dc0de0bb8
+Subproject commit e0ef24091e87f84d44d495d432d611625b281249