Function assert

example/tests/inject_content_test.js:47–53

(expected, actual, message)

  // assert(expected, actual, message) - 比较两个值是否相等
  function assert(expected, actual, message) {
    if (expected !== actual) {
      const valueInfo = `期望 ${JSON.stringify(expected)}, 实际 ${JSON.stringify(actual)}`;
      const error = message ? `${message} - ${valueInfo}` : `断言失败: ${valueInfo}`;
      throw new Error(error);
    }
  }

  // assertTrue(condition, message) - 断言条件为真
  function assertTrue(condition, message) {