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denoland-deno/cli/tests/unit_node/module_test.ts
Asher Gomez d2b5254c33
chore: update std to 0.208.0 (#21318)
Re-attempt at #21284. I was more thorough this time.

---------

Signed-off-by: Asher Gomez <ashersaupingomez@gmail.com>
2023-12-02 03:20:06 +01:00

72 lines
2.3 KiB
TypeScript

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import { createRequire, Module } from "node:module";
import { assert, assertEquals } from "../../../test_util/std/assert/mod.ts";
import process from "node:process";
import * as path from "node:path";
Deno.test("[node/module _preloadModules] has internal require hook", () => {
// Check if it's there
// deno-lint-ignore no-explicit-any
(Module as any)._preloadModules([
"./cli/tests/unit_node/testdata/add_global_property.js",
]);
// deno-lint-ignore no-explicit-any
assertEquals((globalThis as any).foo, "Hello");
});
Deno.test("[node/module runMain] loads module using the current process.argv", () => {
process.argv = [
process.argv[0],
"./cli/tests/unit_node/testdata/add_global_property_run_main.js",
];
// deno-lint-ignore no-explicit-any
(Module as any).runMain();
// deno-lint-ignore no-explicit-any
assertEquals((globalThis as any).calledViaRunMain, true);
});
Deno.test("[node/module _nodeModulePaths] prevents duplicate /node_modules/node_modules suffix", () => {
// deno-lint-ignore no-explicit-any
const actual: string[] = (Module as any)._nodeModulePaths(
path.join(process.cwd(), "testdata", "node_modules", "foo"),
);
assert(
!actual.some((dir) => /node_modules[/\\]node_modules/g.test(dir)),
"Duplicate 'node_modules/node_modules' suffix found",
);
});
Deno.test("[node/module _nodeModulePaths] prevents duplicate root /node_modules", () => {
// deno-lint-ignore no-explicit-any
const actual: string[] = (Module as any)._nodeModulePaths(
path.join(process.cwd(), "testdata", "node_modules", "foo"),
);
assert(
new Set(actual).size === actual.length,
"Duplicate path entries found",
);
const root = path.parse(actual[0]).root;
assert(
actual.includes(path.join(root, "node_modules")),
"Missing root 'node_modules' directory",
);
});
Deno.test("Built-in Node modules have `node:` prefix", () => {
let thrown = false;
try {
// @ts-ignore We want to explicitly test wrong call signature
createRequire();
} catch (e) {
thrown = true;
const stackLines = e.stack.split("\n");
// Assert that built-in node modules have `node:<mod_name>` specifiers.
assert(stackLines.some((line: string) => line.includes("(node:module:")));
}
assert(thrown);
});