def test_platform_manager_find_by_name_and_version_found():
available_platform = Platform('ubuntu', 'trusty')
available_platforms = [available_platform]
platform_manager = PlatformManager(available_platforms)
found_platform = platform_manager.find_by_name_and_version('ubuntu', 'trusty')
assert id(found_platform) == id(available_platform)
def test_platform_manager_find_by_name_and_version_not_found():
available_platform = Platform('ubuntu', 'trusty')
available_platforms = [available_platform]
platform_manager = PlatformManager(available_platforms)
assert platform_manager.find_by_name_and_version('ubuntu', 'precise') is None
