def test_app_name_invalid():
"""Tests valid values of app_name."""
# Arrange
app = App()
# Act/Assert
with pytest.raises(ValueError):
app.app_name = ""
with pytest.raises(ValueError):
app.app_name = None
with pytest.raises(ValueError):
app.app_name = "My Super Cool App"
def test_app_name():
"""Tests get/set of app_name."""
# Arrange
app = App()
# Act
expected_app_name = "my_app"
app.app_name = expected_app_name
app_name = app.app_name
# Assert
assert app_name == expected_app_name
