def test_start_delegates_to_platform_component(service, tmpdir):
service.start()
# The platform specific start() was called
assert service._platform_started
# The default implementation was not called
assert not tmpdir.join("called").check()
def test_start_runs_executable_if_no_platform_specific_start(service, tmpdir):
service.start()
assert tmpdir.join("called").check()
def test_start_runs_executable_if_no_platform_component(service, tmpdir):
service.start()
assert tmpdir.join('called').check()