57 lines
1.8 KiB
Markdown
57 lines
1.8 KiB
Markdown
# Integration tests for Angular
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This directory contains end-to-end tests for Angular. Each directory is a self-contained application that exactly mimics how a user might expect Angular
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to work, so they allow high-fidelity reproductions of real-world issues.
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For this to work, we first build the Angular distribution just like we would
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publish it to npm, then install the distribution into each app.
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To test Angular CLI applications, we use the integration test `cli-hello-world`.
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When a significant change is released in the CLI, the application should be updated with `ng update`:
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```bash
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$ cd integration
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$ ng update
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# ng build
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# ng test
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# typescript version
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```
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## Render3 tests
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The directory `hello_world_cli` contains a test for render3 used with the angular cli.
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If the Angular CLI is modified to generate a render3 application this should be replaced with that project.
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If the render3 is updated to support the Angular 5 bootstrap a version of this project should be created that
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uses the Angular 5 bootstrap.
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## Writing an integration test
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The API for each test is:
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- Each sub-directory here is an integration test
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- Each test should have a `package.json` file
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- The test runner will run `yarn` and `yarn test` on the package
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This means that the test should be started by test script, like
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```
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'scripts' { 'test': 'runProgramA && assertResultIsGood' }
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```
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Note that the `package.json` file uses a special `file://../../dist` scheme
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to reference the Angular packages, so that the locally-built Angular
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is installed into the test app.
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Also, beware of floating (non-locked) dependencies. If in doubt
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you can install the package directly from `file:../../node_modules`.
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## Running integration tests
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```
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$ ./integration/run_tests.sh
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```
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The test runner will first re-build any stale npm packages, then `cd` into each
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subdirectory to execute the test.
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