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denoland-deno/cli/tests/integration/watcher_tests.rs
Zheyu Zhang 5490cfed20
feat(cli): add "--no-clear-screen" flag (#13454)
This commit adds "--no-clear-screen" flag which can be used
with "--watch" flag to disable clearing of terminal screen on
each file change.
2022-01-31 17:39:39 +01:00

1047 lines
34 KiB
Rust

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
use flaky_test::flaky_test;
use std::fs::write;
use std::io::BufRead;
use tempfile::TempDir;
use test_util as util;
const CLEAR_SCREEN: &str = r#"[2J"#;
macro_rules! assert_contains {
($string:expr, $($test:expr),+) => {
let string = $string; // This might be a function call or something
if !($(string.contains($test))||+) {
panic!("{:?} does not contain any of {:?}", string, [$($test),+]);
}
}
}
// Helper function to skip watcher output that contains "Restarting"
// phrase.
fn skip_restarting_line(
stderr_lines: &mut impl Iterator<Item = String>,
) -> String {
loop {
let msg = stderr_lines.next().unwrap();
if !msg.contains("Restarting") {
return msg;
}
}
}
fn read_all_lints(stderr_lines: &mut impl Iterator<Item = String>) -> String {
let mut str = String::new();
for t in stderr_lines {
let t = util::strip_ansi_codes(&t);
if t.starts_with("Watcher File change detected") {
continue;
}
if t.starts_with("Watcher") {
break;
}
if t.starts_with('(') {
str.push_str(&t);
str.push('\n');
}
}
str
}
fn wait_for(s: &str, lines: &mut impl Iterator<Item = String>) {
loop {
let msg = lines.next().unwrap();
if msg.contains(s) {
break;
}
}
}
fn read_line(s: &str, lines: &mut impl Iterator<Item = String>) -> String {
lines.find(|m| m.contains(s)).unwrap()
}
fn check_alive_then_kill(mut child: std::process::Child) {
assert!(child.try_wait().unwrap().is_none());
child.kill().unwrap();
}
fn child_lines(
child: &mut std::process::Child,
) -> (impl Iterator<Item = String>, impl Iterator<Item = String>) {
let stdout_lines = std::io::BufReader::new(child.stdout.take().unwrap())
.lines()
.map(|r| {
let line = r.unwrap();
eprintln!("STDOUT: {}", line);
line
});
let stderr_lines = std::io::BufReader::new(child.stderr.take().unwrap())
.lines()
.map(|r| {
let line = r.unwrap();
eprintln!("STERR: {}", line);
line
});
(stdout_lines, stderr_lines)
}
#[test]
fn lint_watch_test() {
let t = TempDir::new().expect("tempdir fail");
let badly_linted_original =
util::testdata_path().join("lint/watch/badly_linted.js");
let badly_linted_output =
util::testdata_path().join("lint/watch/badly_linted.js.out");
let badly_linted_fixed1 =
util::testdata_path().join("lint/watch/badly_linted_fixed1.js");
let badly_linted_fixed1_output =
util::testdata_path().join("lint/watch/badly_linted_fixed1.js.out");
let badly_linted_fixed2 =
util::testdata_path().join("lint/watch/badly_linted_fixed2.js");
let badly_linted_fixed2_output =
util::testdata_path().join("lint/watch/badly_linted_fixed2.js.out");
let badly_linted = t.path().join("badly_linted.js");
std::fs::copy(&badly_linted_original, &badly_linted)
.expect("Failed to copy file");
let mut child = util::deno_cmd()
.current_dir(util::testdata_path())
.arg("lint")
.arg(&badly_linted)
.arg("--watch")
.arg("--unstable")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.spawn()
.expect("Failed to spawn script");
let (_stdout_lines, mut stderr_lines) = child_lines(&mut child);
let next_line = stderr_lines.next().unwrap();
assert_contains!(&next_line, CLEAR_SCREEN);
assert_contains!(&next_line, "Lint started");
let mut output = read_all_lints(&mut stderr_lines);
let expected = std::fs::read_to_string(badly_linted_output).unwrap();
assert_eq!(output, expected);
// Change content of the file again to be badly-linted1
std::fs::copy(&badly_linted_fixed1, &badly_linted)
.expect("Failed to copy file");
std::thread::sleep(std::time::Duration::from_secs(1));
output = read_all_lints(&mut stderr_lines);
let expected = std::fs::read_to_string(badly_linted_fixed1_output).unwrap();
assert_eq!(output, expected);
// Change content of the file again to be badly-linted1
std::fs::copy(&badly_linted_fixed2, &badly_linted)
.expect("Failed to copy file");
output = read_all_lints(&mut stderr_lines);
let expected = std::fs::read_to_string(badly_linted_fixed2_output).unwrap();
assert_eq!(output, expected);
// the watcher process is still alive
assert!(child.try_wait().unwrap().is_none());
child.kill().unwrap();
drop(t);
}
#[test]
fn lint_watch_without_args_test() {
let t = TempDir::new().expect("tempdir fail");
let badly_linted_original =
util::testdata_path().join("lint/watch/badly_linted.js");
let badly_linted_output =
util::testdata_path().join("lint/watch/badly_linted.js.out");
let badly_linted_fixed1 =
util::testdata_path().join("lint/watch/badly_linted_fixed1.js");
let badly_linted_fixed1_output =
util::testdata_path().join("lint/watch/badly_linted_fixed1.js.out");
let badly_linted_fixed2 =
util::testdata_path().join("lint/watch/badly_linted_fixed2.js");
let badly_linted_fixed2_output =
util::testdata_path().join("lint/watch/badly_linted_fixed2.js.out");
let badly_linted = t.path().join("badly_linted.js");
std::fs::copy(&badly_linted_original, &badly_linted)
.expect("Failed to copy file");
let mut child = util::deno_cmd()
.current_dir(t.path())
.arg("lint")
.arg("--watch")
.arg("--unstable")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.spawn()
.expect("Failed to spawn script");
let (_stdout_lines, mut stderr_lines) = child_lines(&mut child);
let next_line = stderr_lines.next().unwrap();
assert_contains!(&next_line, CLEAR_SCREEN);
assert_contains!(&next_line, "Lint started");
let mut output = read_all_lints(&mut stderr_lines);
let expected = std::fs::read_to_string(badly_linted_output).unwrap();
assert_eq!(output, expected);
// Change content of the file again to be badly-linted1
std::fs::copy(&badly_linted_fixed1, &badly_linted)
.expect("Failed to copy file");
output = read_all_lints(&mut stderr_lines);
let expected = std::fs::read_to_string(badly_linted_fixed1_output).unwrap();
assert_eq!(output, expected);
// Change content of the file again to be badly-linted1
std::fs::copy(&badly_linted_fixed2, &badly_linted)
.expect("Failed to copy file");
std::thread::sleep(std::time::Duration::from_secs(1));
output = read_all_lints(&mut stderr_lines);
let expected = std::fs::read_to_string(badly_linted_fixed2_output).unwrap();
assert_eq!(output, expected);
// the watcher process is still alive
assert!(child.try_wait().unwrap().is_none());
child.kill().unwrap();
drop(t);
}
#[test]
fn lint_all_files_on_each_change_test() {
let t = TempDir::new().expect("tempdir fail");
let badly_linted_fixed0 =
util::testdata_path().join("lint/watch/badly_linted.js");
let badly_linted_fixed1 =
util::testdata_path().join("lint/watch/badly_linted_fixed1.js");
let badly_linted_fixed2 =
util::testdata_path().join("lint/watch/badly_linted_fixed2.js");
let badly_linted_1 = t.path().join("badly_linted_1.js");
let badly_linted_2 = t.path().join("badly_linted_2.js");
std::fs::copy(&badly_linted_fixed0, &badly_linted_1)
.expect("Failed to copy file");
std::fs::copy(&badly_linted_fixed1, &badly_linted_2)
.expect("Failed to copy file");
let mut child = util::deno_cmd()
.current_dir(util::testdata_path())
.arg("lint")
.arg(&t.path())
.arg("--watch")
.arg("--unstable")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.spawn()
.expect("Failed to spawn script");
let (_stdout_lines, mut stderr_lines) = child_lines(&mut child);
assert_contains!(read_line("Checked", &mut stderr_lines), "Checked 2 files");
std::fs::copy(&badly_linted_fixed2, &badly_linted_2)
.expect("Failed to copy file");
assert_contains!(read_line("Checked", &mut stderr_lines), "Checked 2 files");
assert!(child.try_wait().unwrap().is_none());
child.kill().unwrap();
drop(t);
}
#[test]
fn fmt_watch_test() {
let t = TempDir::new().unwrap();
let fixed = util::testdata_path().join("badly_formatted_fixed.js");
let badly_formatted_original =
util::testdata_path().join("badly_formatted.mjs");
let badly_formatted = t.path().join("badly_formatted.js");
std::fs::copy(&badly_formatted_original, &badly_formatted).unwrap();
let mut child = util::deno_cmd()
.current_dir(util::testdata_path())
.arg("fmt")
.arg(&badly_formatted)
.arg("--watch")
.arg("--unstable")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.spawn()
.unwrap();
let (_stdout_lines, mut stderr_lines) = child_lines(&mut child);
let next_line = stderr_lines.next().unwrap();
assert_contains!(&next_line, CLEAR_SCREEN);
assert_contains!(&next_line, "Fmt started");
assert_contains!(
skip_restarting_line(&mut stderr_lines),
"badly_formatted.js"
);
assert_contains!(read_line("Checked", &mut stderr_lines), "Checked 1 file");
let expected = std::fs::read_to_string(fixed.clone()).unwrap();
let actual = std::fs::read_to_string(badly_formatted.clone()).unwrap();
assert_eq!(actual, expected);
// Change content of the file again to be badly formatted
std::fs::copy(&badly_formatted_original, &badly_formatted).unwrap();
assert_contains!(
skip_restarting_line(&mut stderr_lines),
"badly_formatted.js"
);
assert_contains!(read_line("Checked", &mut stderr_lines), "Checked 1 file");
// Check if file has been automatically formatted by watcher
let expected = std::fs::read_to_string(fixed).unwrap();
let actual = std::fs::read_to_string(badly_formatted).unwrap();
assert_eq!(actual, expected);
check_alive_then_kill(child);
}
#[test]
fn fmt_watch_without_args_test() {
let t = TempDir::new().unwrap();
let fixed = util::testdata_path().join("badly_formatted_fixed.js");
let badly_formatted_original =
util::testdata_path().join("badly_formatted.mjs");
let badly_formatted = t.path().join("badly_formatted.js");
std::fs::copy(&badly_formatted_original, &badly_formatted).unwrap();
let mut child = util::deno_cmd()
.current_dir(t.path())
.arg("fmt")
.arg("--watch")
.arg("--unstable")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.spawn()
.unwrap();
let (_stdout_lines, mut stderr_lines) = child_lines(&mut child);
let next_line = stderr_lines.next().unwrap();
assert_contains!(&next_line, CLEAR_SCREEN);
assert_contains!(&next_line, "Fmt started");
assert_contains!(
skip_restarting_line(&mut stderr_lines),
"badly_formatted.js"
);
assert_contains!(read_line("Checked", &mut stderr_lines), "Checked 1 file");
let expected = std::fs::read_to_string(fixed.clone()).unwrap();
let actual = std::fs::read_to_string(badly_formatted.clone()).unwrap();
assert_eq!(actual, expected);
// Change content of the file again to be badly formatted
std::fs::copy(&badly_formatted_original, &badly_formatted).unwrap();
assert_contains!(
skip_restarting_line(&mut stderr_lines),
"badly_formatted.js"
);
assert_contains!(read_line("Checked", &mut stderr_lines), "Checked 1 file");
// Check if file has been automatically formatted by watcher
let expected = std::fs::read_to_string(fixed).unwrap();
let actual = std::fs::read_to_string(badly_formatted).unwrap();
assert_eq!(actual, expected);
check_alive_then_kill(child);
}
#[test]
fn fmt_check_all_files_on_each_change_test() {
let t = TempDir::new().unwrap();
let badly_formatted_original =
util::testdata_path().join("badly_formatted.mjs");
let badly_formatted_1 = t.path().join("badly_formatted_1.js");
let badly_formatted_2 = t.path().join("badly_formatted_2.js");
std::fs::copy(&badly_formatted_original, &badly_formatted_1).unwrap();
std::fs::copy(&badly_formatted_original, &badly_formatted_2).unwrap();
let mut child = util::deno_cmd()
.current_dir(util::testdata_path())
.arg("fmt")
.arg(&t.path())
.arg("--watch")
.arg("--check")
.arg("--unstable")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.spawn()
.unwrap();
let (_stdout_lines, mut stderr_lines) = child_lines(&mut child);
assert_contains!(
read_line("error", &mut stderr_lines),
"Found 2 not formatted files in 2 files"
);
// Change content of the file again to be badly formatted
std::fs::copy(&badly_formatted_original, &badly_formatted_1).unwrap();
assert_contains!(
read_line("error", &mut stderr_lines),
"Found 2 not formatted files in 2 files"
);
check_alive_then_kill(child);
}
#[test]
fn bundle_js_watch() {
use std::path::PathBuf;
// Test strategy extends this of test bundle_js by adding watcher
let t = TempDir::new().unwrap();
let file_to_watch = t.path().join("file_to_watch.ts");
write(&file_to_watch, "console.log('Hello world');").unwrap();
assert!(file_to_watch.is_file());
let t = TempDir::new().unwrap();
let bundle = t.path().join("mod6.bundle.js");
let mut deno = util::deno_cmd()
.current_dir(util::testdata_path())
.arg("bundle")
.arg(&file_to_watch)
.arg(&bundle)
.arg("--watch")
.arg("--unstable")
.env("NO_COLOR", "1")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.spawn()
.unwrap();
let (_stdout_lines, mut stderr_lines) = child_lines(&mut deno);
assert_contains!(stderr_lines.next().unwrap(), "Check");
let next_line = stderr_lines.next().unwrap();
assert_contains!(&next_line, CLEAR_SCREEN);
assert_contains!(&next_line, "Bundle started");
assert_contains!(stderr_lines.next().unwrap(), "file_to_watch.ts");
assert_contains!(stderr_lines.next().unwrap(), "mod6.bundle.js");
let file = PathBuf::from(&bundle);
assert!(file.is_file());
wait_for("Bundle finished", &mut stderr_lines);
write(&file_to_watch, "console.log('Hello world2');").unwrap();
assert_contains!(stderr_lines.next().unwrap(), "Check");
let next_line = stderr_lines.next().unwrap();
assert_contains!(&next_line, CLEAR_SCREEN);
assert_contains!(&next_line, "File change detected!");
assert_contains!(stderr_lines.next().unwrap(), "file_to_watch.ts");
assert_contains!(stderr_lines.next().unwrap(), "mod6.bundle.js");
let file = PathBuf::from(&bundle);
assert!(file.is_file());
wait_for("Bundle finished", &mut stderr_lines);
// Confirm that the watcher keeps on working even if the file is updated and has invalid syntax
write(&file_to_watch, "syntax error ^^").unwrap();
assert_contains!(stderr_lines.next().unwrap(), "File change detected!");
assert_contains!(stderr_lines.next().unwrap(), "error: ");
wait_for("Bundle failed", &mut stderr_lines);
check_alive_then_kill(deno);
}
/// Confirm that the watcher continues to work even if module resolution fails at the *first* attempt
#[test]
fn bundle_watch_not_exit() {
let t = TempDir::new().unwrap();
let file_to_watch = t.path().join("file_to_watch.ts");
write(&file_to_watch, "syntax error ^^").unwrap();
let target_file = t.path().join("target.js");
let mut deno = util::deno_cmd()
.current_dir(util::testdata_path())
.arg("bundle")
.arg(&file_to_watch)
.arg(&target_file)
.arg("--watch")
.arg("--unstable")
.env("NO_COLOR", "1")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.spawn()
.unwrap();
let (_stdout_lines, mut stderr_lines) = child_lines(&mut deno);
let next_line = stderr_lines.next().unwrap();
assert_contains!(&next_line, CLEAR_SCREEN);
assert_contains!(&next_line, "Bundle started");
assert_contains!(stderr_lines.next().unwrap(), "error:");
assert_contains!(stderr_lines.next().unwrap(), "Bundle failed");
// the target file hasn't been created yet
assert!(!target_file.is_file());
// Make sure the watcher actually restarts and works fine with the proper syntax
write(&file_to_watch, "console.log(42);").unwrap();
assert_contains!(stderr_lines.next().unwrap(), "Check");
let next_line = stderr_lines.next().unwrap();
assert_contains!(&next_line, CLEAR_SCREEN);
assert_contains!(&next_line, "File change detected!");
assert_contains!(stderr_lines.next().unwrap(), "file_to_watch.ts");
assert_contains!(stderr_lines.next().unwrap(), "target.js");
wait_for("Bundle finished", &mut stderr_lines);
// bundled file is created
assert!(target_file.is_file());
check_alive_then_kill(deno);
}
#[flaky_test::flaky_test]
fn run_watch() {
let t = TempDir::new().unwrap();
let file_to_watch = t.path().join("file_to_watch.js");
write(&file_to_watch, "console.log('Hello world');").unwrap();
let mut child = util::deno_cmd()
.current_dir(util::testdata_path())
.arg("run")
.arg("--watch")
.arg("--unstable")
.arg(&file_to_watch)
.env("NO_COLOR", "1")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.spawn()
.unwrap();
let (mut stdout_lines, mut stderr_lines) = child_lines(&mut child);
assert_contains!(stdout_lines.next().unwrap(), "Hello world");
wait_for("Process finished", &mut stderr_lines);
// Change content of the file
write(&file_to_watch, "console.log('Hello world2');").unwrap();
assert_contains!(stderr_lines.next().unwrap(), "Restarting");
assert_contains!(stdout_lines.next().unwrap(), "Hello world2");
wait_for("Process finished", &mut stderr_lines);
// Add dependency
let another_file = t.path().join("another_file.js");
write(&another_file, "export const foo = 0;").unwrap();
write(
&file_to_watch,
"import { foo } from './another_file.js'; console.log(foo);",
)
.unwrap();
assert_contains!(stderr_lines.next().unwrap(), "Restarting");
assert_contains!(stdout_lines.next().unwrap(), '0');
wait_for("Process finished", &mut stderr_lines);
// Confirm that restarting occurs when a new file is updated
write(&another_file, "export const foo = 42;").unwrap();
assert_contains!(stderr_lines.next().unwrap(), "Restarting");
assert_contains!(stdout_lines.next().unwrap(), "42");
wait_for("Process finished", &mut stderr_lines);
// Confirm that the watcher keeps on working even if the file is updated and has invalid syntax
write(&file_to_watch, "syntax error ^^").unwrap();
assert_contains!(stderr_lines.next().unwrap(), "Restarting");
assert_contains!(stderr_lines.next().unwrap(), "error:");
wait_for("Process failed", &mut stderr_lines);
// Then restore the file
write(
&file_to_watch,
"import { foo } from './another_file.js'; console.log(foo);",
)
.unwrap();
assert_contains!(stderr_lines.next().unwrap(), "Restarting");
assert_contains!(stdout_lines.next().unwrap(), "42");
wait_for("Process finished", &mut stderr_lines);
// Update the content of the imported file with invalid syntax
write(&another_file, "syntax error ^^").unwrap();
assert_contains!(stderr_lines.next().unwrap(), "Restarting");
assert_contains!(stderr_lines.next().unwrap(), "error:");
wait_for("Process failed", &mut stderr_lines);
// Modify the imported file and make sure that restarting occurs
write(&another_file, "export const foo = 'modified!';").unwrap();
assert_contains!(stderr_lines.next().unwrap(), "Restarting");
assert_contains!(stdout_lines.next().unwrap(), "modified!");
wait_for("Process finished", &mut stderr_lines);
check_alive_then_kill(child);
}
#[test]
fn run_watch_external_watch_files() {
let t = TempDir::new().unwrap();
let file_to_watch = t.path().join("file_to_watch.js");
write(&file_to_watch, "console.log('Hello world');").unwrap();
let external_file_to_watch = t.path().join("external_file_to_watch.txt");
write(&external_file_to_watch, "Hello world").unwrap();
let mut watch_arg = "--watch=".to_owned();
let external_file_to_watch_str = external_file_to_watch
.clone()
.into_os_string()
.into_string()
.unwrap();
watch_arg.push_str(&external_file_to_watch_str);
let mut child = util::deno_cmd()
.current_dir(util::testdata_path())
.arg("run")
.arg(watch_arg)
.arg("--unstable")
.arg(&file_to_watch)
.env("NO_COLOR", "1")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.spawn()
.unwrap();
let (mut stdout_lines, mut stderr_lines) = child_lines(&mut child);
assert_contains!(stdout_lines.next().unwrap(), "Hello world");
wait_for("Process finished", &mut stderr_lines);
// Change content of the external file
write(&external_file_to_watch, "Hello world2").unwrap();
assert_contains!(stderr_lines.next().unwrap(), "Restarting");
wait_for("Process finished", &mut stderr_lines);
check_alive_then_kill(child);
}
#[test]
fn run_watch_load_unload_events() {
let t = TempDir::new().unwrap();
let file_to_watch = t.path().join("file_to_watch.js");
write(
&file_to_watch,
r#"
setInterval(() => {}, 0);
window.addEventListener("load", () => {
console.log("load");
});
window.addEventListener("unload", () => {
console.log("unload");
});
"#,
)
.unwrap();
let mut child = util::deno_cmd()
.current_dir(util::testdata_path())
.arg("run")
.arg("--watch")
.arg("--unstable")
.arg(&file_to_watch)
.env("NO_COLOR", "1")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.spawn()
.unwrap();
let (mut stdout_lines, mut stderr_lines) = child_lines(&mut child);
// Wait for the first load event to fire
assert_contains!(stdout_lines.next().unwrap(), "load");
// Change content of the file, this time without an interval to keep it alive.
write(
&file_to_watch,
r#"
window.addEventListener("load", () => {
console.log("load");
});
window.addEventListener("unload", () => {
console.log("unload");
});
"#,
)
.unwrap();
// Wait for the restart
let next_line = stderr_lines.next().unwrap();
assert_contains!(&next_line, CLEAR_SCREEN);
assert_contains!(&next_line, "Process started");
assert_contains!(stderr_lines.next().unwrap(), "Restarting");
// Confirm that the unload event was dispatched from the first run
assert_contains!(stdout_lines.next().unwrap(), "unload");
// Followed by the load event of the second run
assert_contains!(stdout_lines.next().unwrap(), "load");
// Which is then unloaded as there is nothing keeping it alive.
assert_contains!(stdout_lines.next().unwrap(), "unload");
check_alive_then_kill(child);
}
/// Confirm that the watcher continues to work even if module resolution fails at the *first* attempt
#[test]
fn run_watch_not_exit() {
let t = TempDir::new().unwrap();
let file_to_watch = t.path().join("file_to_watch.js");
write(&file_to_watch, "syntax error ^^").unwrap();
let mut child = util::deno_cmd()
.current_dir(util::testdata_path())
.arg("run")
.arg("--watch")
.arg("--unstable")
.arg(&file_to_watch)
.env("NO_COLOR", "1")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.spawn()
.unwrap();
let (mut stdout_lines, mut stderr_lines) = child_lines(&mut child);
let next_line = stderr_lines.next().unwrap();
assert_contains!(&next_line, CLEAR_SCREEN);
assert_contains!(&next_line, "Process started");
assert_contains!(stderr_lines.next().unwrap(), "error:");
assert_contains!(stderr_lines.next().unwrap(), "Process failed");
// Make sure the watcher actually restarts and works fine with the proper syntax
write(&file_to_watch, "console.log(42);").unwrap();
let next_line = stderr_lines.next().unwrap();
assert_contains!(&next_line, CLEAR_SCREEN);
assert_contains!(&next_line, "Restarting");
assert_contains!(stdout_lines.next().unwrap(), "42");
wait_for("Process finished", &mut stderr_lines);
check_alive_then_kill(child);
}
#[test]
fn run_watch_with_import_map_and_relative_paths() {
fn create_relative_tmp_file(
directory: &TempDir,
filename: &'static str,
filecontent: &'static str,
) -> std::path::PathBuf {
let absolute_path = directory.path().join(filename);
write(&absolute_path, filecontent).unwrap();
let relative_path = absolute_path
.strip_prefix(util::testdata_path())
.unwrap()
.to_owned();
assert!(relative_path.is_relative());
relative_path
}
let temp_directory = TempDir::new_in(util::testdata_path()).unwrap();
let file_to_watch = create_relative_tmp_file(
&temp_directory,
"file_to_watch.js",
"console.log('Hello world');",
);
let import_map_path = create_relative_tmp_file(
&temp_directory,
"import_map.json",
"{\"imports\": {}}",
);
let mut child = util::deno_cmd()
.current_dir(util::testdata_path())
.arg("run")
.arg("--unstable")
.arg("--watch")
.arg("--import-map")
.arg(&import_map_path)
.arg(&file_to_watch)
.env("NO_COLOR", "1")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.spawn()
.unwrap();
let (mut stdout_lines, mut stderr_lines) = child_lines(&mut child);
let next_line = stderr_lines.next().unwrap();
assert_contains!(&next_line, CLEAR_SCREEN);
assert_contains!(&next_line, "Process started");
assert_contains!(stderr_lines.next().unwrap(), "Process finished");
assert_contains!(stdout_lines.next().unwrap(), "Hello world");
check_alive_then_kill(child);
}
#[flaky_test]
fn test_watch() {
let t = TempDir::new().unwrap();
let mut child = util::deno_cmd()
.current_dir(util::testdata_path())
.arg("test")
.arg("--watch")
.arg("--unstable")
.arg("--no-check")
.arg(&t.path())
.env("NO_COLOR", "1")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.spawn()
.unwrap();
let (mut stdout_lines, mut stderr_lines) = child_lines(&mut child);
assert_eq!(stdout_lines.next().unwrap(), "");
assert_contains!(
stdout_lines.next().unwrap(),
"0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out"
);
wait_for("Test finished", &mut stderr_lines);
let foo_file = t.path().join("foo.js");
let bar_file = t.path().join("bar.js");
let foo_test = t.path().join("foo_test.js");
let bar_test = t.path().join("bar_test.js");
write(&foo_file, "export default function foo() { 1 + 1 }").unwrap();
write(&bar_file, "export default function bar() { 2 + 2 }").unwrap();
write(
&foo_test,
"import foo from './foo.js'; Deno.test('foo', foo);",
)
.unwrap();
write(
&bar_test,
"import bar from './bar.js'; Deno.test('bar', bar);",
)
.unwrap();
assert_eq!(stdout_lines.next().unwrap(), "");
assert_contains!(stdout_lines.next().unwrap(), "running 1 test");
assert_contains!(stdout_lines.next().unwrap(), "foo", "bar");
assert_contains!(stdout_lines.next().unwrap(), "running 1 test");
assert_contains!(stdout_lines.next().unwrap(), "foo", "bar");
stdout_lines.next();
stdout_lines.next();
stdout_lines.next();
wait_for("Test finished", &mut stderr_lines);
// Change content of the file
write(
&foo_test,
"import foo from './foo.js'; Deno.test('foobar', foo);",
)
.unwrap();
assert_contains!(stderr_lines.next().unwrap(), "Restarting");
assert_contains!(stdout_lines.next().unwrap(), "running 1 test");
assert_contains!(stdout_lines.next().unwrap(), "foobar");
stdout_lines.next();
stdout_lines.next();
stdout_lines.next();
wait_for("Test finished", &mut stderr_lines);
// Add test
let another_test = t.path().join("new_test.js");
write(&another_test, "Deno.test('another one', () => 3 + 3)").unwrap();
assert_contains!(stderr_lines.next().unwrap(), "Restarting");
assert_contains!(stdout_lines.next().unwrap(), "running 1 test");
assert_contains!(stdout_lines.next().unwrap(), "another one");
stdout_lines.next();
stdout_lines.next();
stdout_lines.next();
wait_for("Test finished", &mut stderr_lines);
// Confirm that restarting occurs when a new file is updated
write(&another_test, "Deno.test('another one', () => 3 + 3); Deno.test('another another one', () => 4 + 4)")
.unwrap();
assert_contains!(stderr_lines.next().unwrap(), "Restarting");
assert_contains!(stdout_lines.next().unwrap(), "running 2 tests");
assert_contains!(stdout_lines.next().unwrap(), "another one");
assert_contains!(stdout_lines.next().unwrap(), "another another one");
stdout_lines.next();
stdout_lines.next();
stdout_lines.next();
wait_for("Test finished", &mut stderr_lines);
// Confirm that the watcher keeps on working even if the file is updated and has invalid syntax
write(&another_test, "syntax error ^^").unwrap();
assert_contains!(stderr_lines.next().unwrap(), "Restarting");
assert_contains!(stderr_lines.next().unwrap(), "error:");
assert_contains!(stderr_lines.next().unwrap(), "Test failed");
// Then restore the file
write(&another_test, "Deno.test('another one', () => 3 + 3)").unwrap();
assert_contains!(stderr_lines.next().unwrap(), "Restarting");
assert_contains!(stdout_lines.next().unwrap(), "running 1 test");
assert_contains!(stdout_lines.next().unwrap(), "another one");
stdout_lines.next();
stdout_lines.next();
stdout_lines.next();
wait_for("Test finished", &mut stderr_lines);
// Confirm that the watcher keeps on working even if the file is updated and the test fails
// This also confirms that it restarts when dependencies change
write(
&foo_file,
"export default function foo() { throw new Error('Whoops!'); }",
)
.unwrap();
assert_contains!(stderr_lines.next().unwrap(), "Restarting");
assert_contains!(stdout_lines.next().unwrap(), "running 1 test");
assert_contains!(stdout_lines.next().unwrap(), "FAILED");
wait_for("test result", &mut stdout_lines);
stdout_lines.next();
wait_for("Test finished", &mut stderr_lines);
// Then restore the file
write(&foo_file, "export default function foo() { 1 + 1 }").unwrap();
assert_contains!(stderr_lines.next().unwrap(), "Restarting");
assert_contains!(stdout_lines.next().unwrap(), "running 1 test");
assert_contains!(stdout_lines.next().unwrap(), "foo");
stdout_lines.next();
stdout_lines.next();
stdout_lines.next();
wait_for("Test finished", &mut stderr_lines);
// Test that circular dependencies work fine
write(
&foo_file,
"import './bar.js'; export default function foo() { 1 + 1 }",
)
.unwrap();
write(
&bar_file,
"import './foo.js'; export default function bar() { 2 + 2 }",
)
.unwrap();
check_alive_then_kill(child);
}
#[flaky_test]
fn test_watch_doc() {
let t = TempDir::new().unwrap();
let mut child = util::deno_cmd()
.current_dir(util::testdata_path())
.arg("test")
.arg("--watch")
.arg("--doc")
.arg("--unstable")
.arg(&t.path())
.env("NO_COLOR", "1")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.spawn()
.unwrap();
let (mut stdout_lines, mut stderr_lines) = child_lines(&mut child);
assert_eq!(stdout_lines.next().unwrap(), "");
assert_contains!(
stdout_lines.next().unwrap(),
"0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out"
);
wait_for("Test finished", &mut stderr_lines);
let foo_file = t.path().join("foo.ts");
write(
&foo_file,
r#"
export default function foo() {}
"#,
)
.unwrap();
write(
&foo_file,
r#"
/**
* ```ts
* import foo from "./foo.ts";
* ```
*/
export default function foo() {}
"#,
)
.unwrap();
// We only need to scan for a Check file://.../foo.ts$3-6 line that
// corresponds to the documentation block being type-checked.
assert_contains!(skip_restarting_line(&mut stderr_lines), "foo.ts$3-6");
check_alive_then_kill(child);
}
#[test]
fn test_watch_module_graph_error_referrer() {
let t = TempDir::new().unwrap();
let file_to_watch = t.path().join("file_to_watch.js");
write(&file_to_watch, "import './nonexistent.js';").unwrap();
let mut child = util::deno_cmd()
.current_dir(util::testdata_path())
.arg("run")
.arg("--watch")
.arg("--unstable")
.arg(&file_to_watch)
.env("NO_COLOR", "1")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.spawn()
.unwrap();
let (_, mut stderr_lines) = child_lines(&mut child);
let line1 = stderr_lines.next().unwrap();
assert_contains!(&line1, CLEAR_SCREEN);
assert_contains!(&line1, "Process started");
let line2 = stderr_lines.next().unwrap();
assert_contains!(&line2, "error: Module not found");
assert_contains!(&line2, "nonexistent.js");
let line3 = stderr_lines.next().unwrap();
assert_contains!(&line3, " at ");
assert_contains!(&line3, "file_to_watch.js");
wait_for("Process failed", &mut stderr_lines);
check_alive_then_kill(child);
}
#[test]
fn watch_with_no_clear_screen_flag() {
let t = TempDir::new().unwrap();
let file_to_watch = t.path().join("file_to_watch.js");
write(&file_to_watch, "export const foo = 0;").unwrap();
// choose deno run subcommand to test --no-clear-screen flag
let mut child = util::deno_cmd()
.current_dir(util::testdata_path())
.arg("run")
.arg("--watch")
.arg("--no-clear-screen")
.arg("--unstable")
.arg(&file_to_watch)
.env("NO_COLOR", "1")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.spawn()
.unwrap();
let (_, mut stderr_lines) = child_lines(&mut child);
let next_line = stderr_lines.next().unwrap();
// no clear screen
assert!(!&next_line.contains(CLEAR_SCREEN));
assert_contains!(&next_line, "Process started");
assert_contains!(
stderr_lines.next().unwrap(),
"Process finished. Restarting on file change..."
);
// Change content of the file
write(&file_to_watch, "export const bar = 0;").unwrap();
let next_line = stderr_lines.next().unwrap();
// no clear screen
assert!(!&next_line.contains(CLEAR_SCREEN));
assert_contains!(&next_line, "Watcher File change detected! Restarting!");
assert_contains!(
stderr_lines.next().unwrap(),
"Process finished. Restarting on file change..."
);
check_alive_then_kill(child);
}