Function assertSame

example/tests/window_message_test.js:38–44

(expected, actual, message)

  }

  function assertSame(expected, actual, message) {
    if (!Object.is(expected, actual)) {
      throw new Error(
        `${message} - expected ${JSON.stringify(expected)}, got ${JSON.stringify(actual)}`,
      );
    }
  }

  function assertTrue(condition, message) {
    if (!condition) {