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Update test docs in "contributing to Rails" guide

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Updated guide to recommend `bin/test` and show examples of its use in different contexts.

Co-authored-by: Marivaldo Cavalheiro <marivaldo@gmail.com>
This commit is contained in:
Alex Ghiculescu 2021-01-19 17:16:28 -06:00
parent c9e4af5c9d
commit 70fe2c0f23
1 changed files with 12 additions and 15 deletions
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27
guides/source/contributing_to_ruby_on_rails.md
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@ -325,40 +325,37 @@ to run Action Mailer tests:
```bash
$ cd actionmailer
$ bundle exec rake test
$ bin/test
```
#### For a Specific Directory
If you want to run the tests located in a specific directory use the `TEST_DIR`
environment variable. For example, this will run the tests in the
`railties/test/generators` directory only:
You can run tests only for a specific directory of a particular component
(e.g. models in Active Storage). For example, to run tests in `/activestorage/test/models`:
```bash
$ cd railties
$ TEST_DIR=generators bundle exec rake test
$ cd activestorage
$ bin/test models
```
#### For a Specific File
You can run the tests for a particular file by using:
You can run the tests for a particular file:
```bash
$ cd actionview
$ bundle exec ruby -w -Itest test/template/form_helper_test.rb
$ bin/test test/template/form_helper_test.rb
```
#### Running a Single Test
You can run a single test through ruby. For instance:
You can run a single test by name using the `-n` option:
```bash
$ cd actionmailer
$ bundle exec ruby -w -Itest test/mail_layout_test.rb -n test_explicit_class_layout
$ bin/test test/mail_layout_test.rb -n test_explicit_class_layout
```
The `-n` option allows you to run a single method instead of the whole file.
#### Running Tests with a Specific Seed
Test execution is randomized with a randomization seed. If you are experiencing random
@ -369,14 +366,14 @@ Running all tests for a component:
```bash
$ cd actionmailer
$ SEED=15002 bundle exec rake test
$ SEED=15002 bin/test
```
Running a single test file:
```bash
$ cd actionmailer
$ SEED=15002 bundle exec ruby -w -Itest test/mail_layout_test.rb
$ SEED=15002 bin/test test/mail_layout_test.rb
```
#### Running Tests in Serial
@ -386,7 +383,7 @@ test failures you can set the randomization seed and let these unit tests run in
```bash
$ cd actionview
$ PARALLEL_WORKERS=1 SEED=53708 bundle exec ruby -w -Itest test/template/test_case_test.rb
$ PARALLEL_WORKERS=1 SEED=53708 bin/test test/template/test_case_test.rb
```
#### Testing Active Record