EmptyDirectory Constraint

EmptyDirectoryConstraint tests that a directory contains no files or subdirectories.

Usage

Is.Empty
Is.Not.Empty

Examples

[Test]
public void EmptyDirectoryConstraint_Examples()
{
    var tempDir = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
    Directory.CreateDirectory(tempDir);

    try
    {
        // Test directory is empty
        Assert.That(new DirectoryInfo(tempDir), Is.Empty);

        // Add a file and verify not empty
        File.WriteAllText(Path.Combine(tempDir, "test.txt"), "content");
        Assert.That(new DirectoryInfo(tempDir), Is.Not.Empty);
    }
    finally
    {
        Directory.Delete(tempDir, recursive: true);
    }
}

Notes

  1. Is.Empty is a polymorphic constraint that works on strings, collections, and directories.
  2. When applied to a DirectoryInfo, it checks for both files and subdirectories.
  3. The directory must exist - passing a non-existent directory throws an exception.

See Also