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#1
02-16-08, 07:35 PM
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Why can't I run a Test::Unit::TestCase from IRB and have it run before I
quit? I have found this problem mentioned by others. For an example, see this tutorial about testing: http://www.nullislove.com/2007/11/14...sting-in-ruby/ >irb --simple-prompt >> require 'test/unit' => true >> class FirstTests < Test::Unit::TestCase >> def test_addition >> assert(1 + 1 == 2) >> end >> >> def test_subtraction >> assert(1 - 1 == 2) >> end >> end => nil >> quit Loaded suite irb Started F Finished in 0.00119 seconds. The author mentions that a quirk of irb makes this happen but doesn't say what the quirk is: "When we finished the definition, nothing happened. When we exited IRB, then our tests ran. That’s a characteristic of using IRB for our tests and won’t be significant as we move on." Thanks for any insight you have. |
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#2
02-16-08, 09:18 PM
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Peter Recore wrote:
> "When we finished the definition, nothing happened. When we exited IRB, > then our tests ran. That’s a characteristic of using IRB for our tests > and won’t be significant as we move on." In general, the package has this problem because the best way to run tests is with an editor. After a change you hit one button, and this runs the current test. If you don't have editor keystroke bindings there, get with ZenTest's autotest, and use it to trigger a test run each time you save your files. The tests run when IRB exits because RubyUnit is designed to run tests automatically if you invoke their files with 'ruby file_test.rb'. You wouldn't need to add these lines to the bottom of each test case: runner = Test::Unit::UI::Console::TestRunner got = runner.run(aTestCase.suite) badThings += got.error_count + got.failure_count That might work in IRB, too. |
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#3
02-16-08, 10:45 PM
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On Feb 16, 2008 11:35 AM, Peter Recore <peterrecore> wrote:
> Why can't I run a Test::Unit::TestCase from IRB and have it run before I > quit? You can, you just have to explicitly tell it to run. Normally, you don't explicitly run Test::Unit tests, you simply define them and then they run automagically when ruby exits, because the Test::Unit library, when it is loaded, loads an at_exit routine that will (unless something has told it not too) run the tests that have been defined. Its not really an IRB quirk that stops them from running until you exit, its just that when you run a script with unit tests "standalone", you don't realize that the tests are run when it is exiting. With IRB, you just notice what is going on regularly when you use Test::Unit. The RDoc for Test::Unit gives this example of how to explicitly run a test case: require 'test/unit/ui/console/testrunner' Test::Unit::UI::Console::TestRunner.run(TC_MyTest) |
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Why does running a Test::unit test in irb work so weirdly?