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58 lines
2.2 KiB
Markdown
58 lines
2.2 KiB
Markdown
# Debugging tests
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# 调试测试代码
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If your tests aren't working as you expect them to, you can inspect and debug them in the browser.
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如果你的测试没能如预期般工作，可以在浏览器中查看和调试它们。
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<div class="alert is-helpful">
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For the sample app that the testing guides describe, see the <live-example name="testing" embedded-style noDownload>sample app</live-example>.
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对于测试指南中所讲的范例应用，参阅<live-example name="testing" embedded-style noDownload>范例应用</live-example>。
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For the tests features in the testing guides, see <live-example name="testing" stackblitz="specs" noDownload>tests</live-example>.
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要了解本测试指南中提到的这些测试特性，请参阅<live-example name="testing" stackblitz="specs" noDownload>测试</live-example>。
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</div>
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Debug specs in the browser in the same way that you debug an application.
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在浏览器中调试这些测试规约的方式与调试应用时相同。
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1. Reveal the Karma browser window. See [Set up testing](guide/testing#set-up-testing) if you need help with this step.
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打开 Karma 的浏览器窗口。如果需要帮助，请参阅[“设置测试”](guide/testing#set-up-testing)。
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1. Click the **DEBUG** button; it opens a new browser tab and re-runs the tests.
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单击 **DEBUG** 按钮；它会打开一个新的浏览器选项卡并重新运行测试。
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1. Open the browser's “Developer Tools” (`Ctrl-Shift-I` on Windows; `Command-Option-I` in macOS).
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打开浏览器的 “Developer Tools”（Windows 上的 `Ctrl-Shift-I` ; macOS 上的 `Command-Option-I`
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1. Pick the "sources" section.
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选择 “sources” 页。
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1. Open the `1st.spec.ts` test file (Control/Command-P, then start typing the name of the file).
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打开 `1st.spec.ts` 测试文件（Control/Command-P，然后开始输入该文件的名字）。
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1. Set a breakpoint in the test.
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在测试中设置一个断点。
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1. Refresh the browser, and it stops at the breakpoint.
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刷新浏览器，它会在这个断点处停下来。
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<div class="lightbox">
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<img src='generated/images/guide/testing/karma-1st-spec-debug.png' alt="Karma debugging">
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</div>
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<hr>
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