Use mock for CSS-files #3590
Use mock for CSS-files #3590
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**Summary:** Missing CSS files cause failing tests, this is problematic when using a preprocessor such as SASS. **Test plan:** 1. Create a project 2. Delete `src/App.css`. 3. Run `yarn test`. Verify the test passes and does not fail with a `Cannot find module './App.css' from 'App.js'`-error.
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I prpose this change because I use a CSS-preprocessor with create-react-app, this leads to problems with tests failing on CI. The preprocessor is not run before the tests are executed, therefore the CSS files are missing. Currently I have a A build of a project will still fail, when a CSS file is missing, so this change can not lead to projects that stop working unexpectedly. |
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Thanks for the PR, but I don't think we'll take this. You could similarly argue a missing file means a mistake that should be caught by tests. As a workaround, you can run the build before tests (it's a good idea anyway). We plan some sort of Sass support in future releases (#2498) so let's focus on that instead. |
Summary:
Missing CSS files cause failing tests, this is problematic when using a
preprocessor such as SASS.
Test plan:
src/App.css.yarn test.Verify the test passes and does not fail with a
Cannot find module './App.css' from 'App.js'-error.