typescript - 如何在 Protractor ( typescript )中制作更具描述性的错误日志消息

Question

我们正在针对生产网站运行 Protractor (用 typescript 编写)。有谁知道 Protractor 测试失败时如何输出一些日志消息？我现在所拥有的基本上只是一条是/否消息，如下所示:

10) Query page accuracy test. Comparison of page data to data extracted from excel. Test begins...
  Message:
    Expected false to be truthy.
  Stack:
    Error: Failed expectation
        at C:\xampp\htdocs\kap\frontend\src\app\qa\qa.js:147:103
        at step (C:\xampp\htdocs\kap\frontend\src\app\qa\qa.js:33:23)
        at Object.next (C:\...

等 这是我们测试的行:

expect(htmlValue == excelValue || (htmlValue === "0" && excelValue == "NaN")).toBeTruthy();

如何在测试失败时添加更具描述性的消息？谢谢任何人，我是 Protractor 的新手，但我之前做过 QA 自动化测试。

Answer 1

您可以像这样在 ToBeTruthy 中添加描述:

expect(htmlValue == excelValue || (htmlValue === "0" && excelValue == "NaN")).toBeTruthy("description why I checked this")

如果您愿意，可以像这样显示失败的测试值:

expect(
  htmlValue == excelValue || (htmlValue === '0' && excelValue == 'NaN'),
).toBeTruthy(
  `HTML differ form Excel. HTML: ${htmlValue}; Excel: ${excelValue}`,
);

几乎所有 jasmine Matchers 都接受一个 expectationFailOuput 参数:

toBe(expected: any, expectationFailOutput?: any): Promise<void>;
toEqual(expected: any, expectationFailOutput?: any): Promise<void>;
toMatch(expected: string | RegExp | Promise<string | RegExp>, expectationFailOutput?: any): Promise<void>;
toBeDefined(expectationFailOutput?: any): Promise<void>;
toBeUndefined(expectationFailOutput?: any): Promise<void>;
toBeNull(expectationFailOutput?: any): Promise<void>;
toBeTruthy(expectationFailOutput?: any): Promise<void>;
toBeFalsy(expectationFailOutput?: any): Promise<void>;
toContain(expected: any, expectationFailOutput?: any): Promise<void>;
toBeLessThan(expected: number | Promise<number>, expectationFailOutput?: any): Promise<void>;
toBeLessThanOrEqual(expected: number | Promise<number>, expectationFailOutput?: any): Promise<void>;
toBeGreaterThan(expected: number | Promise<number>, expectationFailOutput?: any): Promise<void>;
toBeGreaterThanOrEqual(expected: number | Promise<number>, expectationFailOutput?: any): Promise<void>;
toBeCloseTo(expected: number | Promise<number>, precision?: any, expectationFailOutput?: any): Promise<void>;

您将在 jasminewd2 depot 中找到 Matchers 定义