Angular - Tests

1. I have made a new project in Angular using cmd "ng new app". I typed "npm test" and then I had 3 tests that were succeed. What am I supposed to do to see those tests in Test Eplorator in Visual Studio? Should I open a project somehow cause i used to open it by "Open a local folder".

2. Does anyone has any public repository with an example of project with test written cause i wanted to learn how to run them in Visual Studio?

Regards.