Function assert

example/tests/early_inject_page_test.js:50–56

(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) {