检查在每次开玩笑后测试是否失败 [英] Check if test failed in afterEach of Jest

问题描述

当我的某个 Jest 测试失败时，我想存储截图，但仅限于此时失败。

When one of my Jest tests fails I want to store a screenshot, but only when it fails.

以下是我的测试代码的一部分， ！传递 参与afterEach不起作用。

Here is a piece of my test code as an example, the !passed part in the afterEach is not working.

describe('Page', () => {  
  it('should contain Text in the header', async () => {
    // Arrange
    const page = new Page(driver);

    // Act
    await page.open();

    // Assert
    expect(await page.getHeaderText()).toBe('Something');
  });

  afterEach(async () => {
    if (!passed) takeScreenshot();
    await driver.quit();
  });
});

使用jasmine我会做类似的事情：

With jasmine I would do something like:

  var passed = jasmine.getEnv().currentSpec.results().passed();

但我找不到类似于Jest的东西。也许还有另一种解决方案，比如对每个失败的预期截取屏幕截图？我尝试了一下try / catch，但测试总是通过...

But I cannot find something similar for Jest. Maybe there is another solution like taking a screenshot on each failing expect? I tried a try/catch around the expect, but then the test always passes...

如果我的测试在afterEach中失败，我如何与Jest核实？

How can I check with Jest if my test failed in the afterEach?

推荐答案

似乎jasmine对象可用于Jest测试，但currentSpec已在2.x版本中删除。

Seems the jasmine object can be used in Jest tests, but the currentSpec has been removed in the 2.x version.

我找到了使用茉莉花自定义报告的替代方案。请确保您还将 driver.quit（）移至记者，因为测试后您可能仍需要驱动程序。

I have found an alternative with the use of jasmine custom reports. Just make sure you also move the driver.quit() to the reporter as you might still need the driver after the test.

以下是记者在测试结束时处理失败测试的简单示例：

Here is an simple example for the reporter handling failing tests at the end of the test:

const reporter = {
  specDone: async (result) => {
    if (result.status === 'failed') {
      takeScreenshot(result.description);
    }
    await driver.quit();
  },
};

jasmine.getEnv().addReporter(reporter);

describe('Page', () => {  
  it('should contain Text in the header', async () => {
    // Arrange
    const page = new Page(driver);

    // Act
    await page.open();

    // Assert
    expect(await page.getHeaderText()).toBe('Something');
  });
});

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