You can run a subset of tests or view a subset of test results by filtering test tags. Tags are a property of the test case, test suite, or test file.
Add comma-separated tags to the Tags section in the Test Browser. Tags cannot contain spaces; spaces are corrected to commas.
In the text box at the top of the Test Browser or Results and
Artifacts pane, filter tests by entering
id1, id2, ... where
id2 are example test tags. Enter multiple tags
separated by commas to return tests containing
any tag in the list.
To run a subset of tests
Filter the tests using tags.
In the toolstrip, click the down arrow below Run and select Run Filtered.