m: a better Ruby Test::Unit runner

Run tests by line number in Test::Unit, and more!

Presented at WNYRuby on April 11th, 2012.

Transcript

1. m a better test-unit runner @qrush
2. i’m @qrush
3. @ i live here
4. c i work at 37signals
5. stands for metal m
7. runs tests by line number m
8. $ cat -n test/example_test.rb 1 require 'test/unit' 2 3 class ExampleTest < Test::Unit::TestCase 4 def test_apple 5 assert_equal 1, 1 6 end 7 8 def test_banana 9 assert_equal 1, 1 10 end 11 end you wrote:
9. $ m test/example_test.rb:4 Run options: -n /test_apple/ # Running tests: . Finished tests in 0.000525s, 1904.7619 tests/s, 1904.7619 assertions/s. 1 tests, 1 assertions, 0 failures, 0 errors, 0 skips run one test:
10. $ m test/example_test.rb:2 No tests found on line 2. Valid tests to run: test_apple: m test/examples/test_unit_example_test.rb:4 test_banana: m test/examples/test_unit_example_test.rb:8 wrong line:
11. $ m test/example_test.rb Run options: # Running tests: .. Finished tests in 0.001293s, 1546.7904 tests/s, 3093.5808 assertions/s. 1 tests, 2 assertions, 0 failures, 0 errors, 0 skips run it all:
12. some facts m
13. works with test-unit, rails, mini-test 1. uses rocco for literate documentation 2. four months of daily use 3.
14. how does it work m
15. programming is not magic
16. figure out where test methods are 1. match what line you chose with tests we know about 2. run that test! 3.
17. __/\\\\____________/\\\\_ _\/\\\\\\________/\\\\\\_ _\/\\\//\\\____/\\\//\\\_ _\/\\\\///\\\/\\\/_\/\\\_ _\/\\\__\///\\\/___\/\\\_ _\/\\\____\///_____\/\\\_ _\/\\\_____________\/\\\_ _\/\\\_____________\/\\\_ _\///______________\///__ gem install m http://quaran.to/m https://github.com/qrush/m