import pytest


@pytest.mark.parametrize(
    "formal_name, candidate",
    [
        ("Hello World", "helloworld"),
        ("Hello World!", "helloworld"),
        ("Hello! World", "helloworld"),
        ("Hello-World", "helloworld"),
        # Internationalized names that can be unicode-simplified
        ("Hallo Vögel", "hallovogel"),
        ("Bonjour Garçon", "bonjourgarcon"),
        # Internationalized names that cannot be unicode-simplified
        ("你好 世界", "myapp"),
    ],
)
def test_make_app_name(new_command, formal_name, candidate):
    """A formal name can be converted into a valid app name."""
    app_name = new_command.make_app_name(formal_name)
    assert app_name == candidate
    # Double check - the app name passes the validity check.
    assert new_command.validate_app_name(app_name)