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26 lines
683 B
Markdown
26 lines
683 B
Markdown
# Run The Test At A Specific Line Number
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You can tell `mix test` to only run tests that appear in a specific file by
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naming the file:
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```bash
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$ mix test test/module/file_test.exs
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```
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You can even point it to a specific line number in that file like so:
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```bash
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$ mix test test/module/file_test.exs:45
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```
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Behind the scenes, `mix test` is using tags to build a list of exclusions
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and inclusions that result in only the test at line 45 running. Here is an
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equivalent of the above command:
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```bash
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$ mix test test/module/file_test.exs --exclude test --include line:45
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```
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This will exclude every test. It will then re-include the test that
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corresponds to having a tag `line:45`.
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