需要用于MS UI自动化的源代码dll的代码覆盖信息

Question

We have a Winforms app which is 10 years old, and has a huge codebase in the UI layer. Writing unit test cases through NUnit or MS test would be a nightmare.

So we have opted for UI automation rather than white box testing.

Now the difficult part is, we need code coverage info of source code.

Is there any way through which I can get the source code executed/coverage of UI automation?

Many thanks in advance.

Answer 1

Visual Studio has a built-in code coverage measurement tools. There are 2 options.

• You may create so called "generic test(s)" that run(s) your test system with necessary params. In such a case you need to create a test project, to create a test run configuration and to do many other things through a "Test" menu (VS 2015 Professional contains such a menu, previous versions may require Test System or Enterprise).

• Another option is using the tools from command line as described in the MSDN docs .

  • Use vsinstr -coverage <myassembly.exe> to instrument target binaries.
  • Use start vsperfmon -coverage -output: mytestrun.coverage to start collecting coverage data.
  • After the tests are finished just open .coverage file in Visual Studio (coverage should be perfectly highlighted in the source code editor as well).