Pychart automatically enters the test mode when running the program

I found that I entered the test mode automatically when running the code today , But I didn't import the test module . Later, I found that it was because one of my functions was named test start ,pycharm It is automatically recognized as test code .

My code ：

def test_ii():
    print("hhh")

After operation ：

But in my virtual machine pycharm Will not recognize like this , The same code works normally .

see File->Settings->Tools->Python integrated Tools page ：

Enter the test mode pycharm：

You can see that the default test runner is pytest.

Will not enter the test mode pycharm：

Put into test mode pycharm Of pytest Change it to Unittests Will not enter the test mode .