Test Results Output to File or Table
Output to the Test window can be fine, depending on the situation. However, an output from a full test run to a text file or to a table in a database so that you know, and can compare, one test run to another, is absolutely necessary. As you start expanding to enterprise level of testing, you need to be able to search and sift through the test results. Having them in a window that you have to copy and paste from is not automation.
Steve Hall commented
Running the SQLCop tests and only seeing the last test result within the TestResult table is also part of this issue.
All results from a class should be available.
David Atkinson commented
I know it's not a perfect solution, but if you run your tests from a CI tool like TeamCity, the test results are automatically saved.