Okay roughly a month ago I found the answer and I want to share it.
Code coverage records all kind of tests out of FlexUnit 0.9.
The theory tests are supported by Fluint 1.
flexUnit 4 combines the two libs. So in the end you can use Code cover which is supported by Adobe just for FlexUnit 0.9 tests. If you want a code coverage tool for all kinds of tests in FlexUnit 4 I advice you to get FlexCover.
So happy testing evryone.
Sorry I didn't see this post before.
I don't know much about Adobe's code coverage solution, but, do you have any sense why it wouldn't cover parameterized tests or theories? That sounds ludicrous? It should just be evaluating that code is covered, it should have no information about what constitutes a test.
No problem. Evrybody can slip a topic.
I refer to this flashbuilder plugin: http://www.adobe.com/devnet/flash-builder/articles/ascode-coverage.html
If I would know why ... I would tell you it. But to be honest I only know that round about 150 async and/or theory tests that I had written did record anything. The recorded code stoped right after the setUp where I use an Async.proceedOnEvent statement to make sure evrything is set up for the test.
Extensions for FlexUnit 0.9 like eventful tests (from Tom Sugden http://blogs.adobe.com/tomsugden/2008/01/eventfultestcase_a_flexunit_ex.html) get recorded by this plugin.