TempFolder

TempFolder, a test fixture: a fresh folder that is removed with everything in it when the fixture is released.

Source: runtime/testing/temp_folder.pep

TempFolder

struct TempFolder

A fresh, empty folder under the system’s temporary folder, for a test that writes files. The folder and everything in it are removed when the last reference to the fixture is released, so a test that holds it in a local cleans up when it returns.

Its name joins the name the test gives with the process id, so tests running at once, each in a process of its own, never share a folder. When a folder of that name is left from an earlier run (whose process had the same id) and cannot be removed, a number is added to the name, so the folder is always new and empty.

Example

[Test]
writes_a_file() {
    var folder = TempFolder("writes_a_file");
    var path = folder.path.join("notes.txt");
    io.File.write_text(path, "hello");
    expect_equal(io.File.read_to_string(path).value(), "hello");
}