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Add delay between updating a file (#12576)

This commit is contained in:
Micha Reiser 2024-07-30 18:31:29 +02:00 committed by GitHub
parent 7a4419a2a5
commit 264cd750e9
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1 changed files with 11 additions and 0 deletions
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11
crates/red_knot/tests/file_watching.rs
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@ -183,6 +183,15 @@ where
Ok(test_case) Ok(test_case)
} }
/// The precision of the last modified time is platform dependent and not arbitrarily precise.
/// This method sets the current thread to sleep for a duration that
/// is larger than the [last-modified precision on all platforms](https://doc.rust-lang.org/nightly/std/time/struct.SystemTime.html#platform-specific-behavior).
///
/// Calling the function is only necessary when making changes to an **existing** file.
fn next_io_tick() {
std::thread::sleep(Duration::from_nanos(200));
}
#[test] #[test]
fn new_file() -> anyhow::Result<()> { fn new_file() -> anyhow::Result<()> {
let mut case = setup([("bar.py", "")])?; let mut case = setup([("bar.py", "")])?;
@ -238,6 +247,7 @@ fn changed_file() -> anyhow::Result<()> {
assert_eq!(source_text(case.db(), foo).as_str(), foo_source); assert_eq!(source_text(case.db(), foo).as_str(), foo_source);
assert_eq!(&case.collect_package_files(&foo_path), &[foo]); assert_eq!(&case.collect_package_files(&foo_path), &[foo]);
next_io_tick();
std::fs::write(foo_path.as_std_path(), "print('Version 2')")?; std::fs::write(foo_path.as_std_path(), "print('Version 2')")?;
let changes = case.stop_watch(); let changes = case.stop_watch();
@ -269,6 +279,7 @@ fn changed_metadata() -> anyhow::Result<()> {
) )
); );
next_io_tick();
std::fs::set_permissions( std::fs::set_permissions(
foo_path.as_std_path(), foo_path.as_std_path(),
std::fs::Permissions::from_mode(0o777), std::fs::Permissions::from_mode(0o777),