The best way to run the Code tests is from within VS Code. Simply press CMD+Shift+T (Ctrl+Shift+T on Windows) to launch the tests.
If you wish to run the tests from a terminal, from the vscode folder run:
OS X and Linux
./test/run.sh
Windows
test\run
You can use VS Code to debug your tests. Switch to the Debug viewlet, pick the Unit Tests debug target and press Play.
The following command will create a coverage folder at the root of the workspace:
OS X and Linux
./test/run.sh --coverage
Windows
test\run --coverage