Analyze code coverage with dotCover
tip
ReSharper's unit test runner does not allow running two or more tests with the same ID. This rarely happens in practice, but if you do have tests with the same ID, they will appear as a single node in the Unit Tests explorer and Unit Test Sessions window, and only one of them will run.
Note that test frameworks identify tests in different ways. For example, MSTest uses test-methods FQNs but NUnit uses properties of test attributes as test IDs.
tip
You can disable dotCover by clearing the dotCover checkbox on the page of ReSharper options Alt+R, O.