A Python script that runs elm-test, so you can elm-test without leaving PyCharm

elm-test-pycharm-runner.py

import subprocess

import sys
import os

try:  # windows
    x = subprocess.run([os.environ['USERPROFILE'] + r"\AppData\Roaming\npm\elm-test.cmd"], stdout=subprocess.PIPE,
                       stderr=subprocess.PIPE)
except:  # macos / linux
    x = subprocess.run([r"/usr/local/bin/elm-test"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)

sys.stdout.write(x.stdout.decode("utf-8"))
sys.stderr.write(x.stderr.decode("utf-8"))
exit(x.returncode)