Unit test and assertion framework for Sibelius ManuScript development

As part of my cunning plan to drag Sibelius plugin development kicking and screaming into the 21st Century, here's a unit test and assertions framework implemented as a plugin. Take a look at TestTest.plg for an example of its use (it's the set of unit tests for the assertions code).

In your Run function, the following:

  suite = Test.Suite('Name of test suite', Self, ThePluginToTest);

  suite
    .Add('TestSomething')   // the name of a test function
    .Add('TestSomethingElse')
    ;

  suite.Run(suite);

Test functions are passed an assert object, which supports methods for testing a variety of conditions, and the plugin under test (passed to the constructor for the test suite in your Run function). Test functions look like this:

TestSomething(assert, plugin)

   result = plugin.DoSomething(1,2,3);
   assert.Equal(result, 99, "Correct result from DoSomething");

The assert methods return true/false depending on whether the assertion passes or not. In addition the object remembers assertion failures (which it reports back to the test suite) and on failure writes to the trace window (which will be opened by the test plugin if it isn't already open, so you might want to open it manually and resize it).

Currently supports the following:

  testAssert.Equal(10, 10, 'output if the two arguments are *not* equal');
  testAssert.NotEqual(10, 10, 'output if the two arguments *are* equal');
  testAssert.OK(True, 'this is output if the actual value is not True');
  testAssert.NotOK(False, 'and this if the actual value is not False');

You really should take a look at plgToMSS. The src and test directories in this repo are set up for this tool.