How do I make IntelliJ IDEA run all the tests in a package including sub packages

1. Run->Edit Configurations...
2. Create a new junit test configuration
3. Name it "All tests"
4. Include entire package
5. Apply/Run.

From @andersoyvind's comment.

The default key combination to run all tests is Ctrl+Shift+F10

I've solved this thanks to csauve response. This could be an answer to his, but I didn't know how to include an image there.

Run/Debug Configurations dialog box can be access via Run > Edit Configurations. Use these options to create one that runs all your tests: