Accumulation of .vsmdi Files in Visual Studio
By default, each time you run unit tests in Visual Studio, a new .vsmdi file and associated test results are accumulated under the solution root folder in Visual Studio. You can reduce the number of vsmdi files by changing a setting in Tools > Options in VS. Go to the Test Tools category, Test Execution sub-category, and reduce the setting “Limit number of old test results to” to 1 or a small number. The default is 25.
Tags: unit test, Visual Studio