Attribute Macro file_parallel 

#[file_parallel]

Available on crate feature file_locks only.

Allows for the creation of file-serialised parallel Rust tests that won’t clash with file-serialised serial tests

#[test]
#[file_serial]
fn test_serial_one() {
  // Do things
}

#[test]
#[file_parallel]
fn test_parallel_one() {
  // Do things
}

#[test]
#[file_parallel]
fn test_parallel_two() {
  // Do things
}

Effectively, this should behave like parallel but for file_serial. Note that as per file_serial this doesn’t do anything for serial/parallel tests.

It also supports an optional path arg as well as key(s) as per serial, which is the path to the file used for locking purposes. This file is managed by serial_test and no assumptions about it’s format should be made. The path defaults to a file under a reasonable temp directory for the OS if not specified. If the path is specified, you can only use one key, as we can’t generate per-key paths if you’ve done that.

#[test]
#[file_parallel(key, path => "/tmp/foo")]
fn test_parallel_one() {
  // Do things
}

#[test]
#[file_parallel(key, path => "/tmp/foo")]
fn test_parallel_another() {
  // Do things
}