Run tests for the open test file in the Web IDE
Out of the box we want to make contributing using Web IDE easy for anyone. When you're writing tests or fixing failing tests, you want to be able run your tests to make sure they pass or fail (TDD folks who write tests first) as expected. If you're looking at a file of tests, we should give the user a Run tests button which will run the tests for that file.
Detect the language of the project, and guess the command to run the tests for that file.
go test path/to/foo_test.go
We can make this smarter, and configurable in a future release.