Hello, there!

test/test_subprocess.py

@@ -0,0 +1,33 @@
+"""
+Copyright 2017 Oliver Smith
+
+This file is part of pmbootstrap.
+
+pmbootstrap is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+pmbootstrap is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with pmbootstrap.  If not, see <http://www.gnu.org/licenses/>.
+"""
+import os
+import glob
+
+
+def test_use_pmb_helpers_run_instead_of_subprocess_run():
+    src = os.path.abspath(os.path.dirname(__file__) + "/..")
+    files = glob.glob(src + "/pmb/**/*.py",
+                      recursive=True) + glob.glob(src + "*.py")
+    okay = os.path.abspath(src + "/pmb/helpers/run.py")
+    for file in files:
+        with open(file, "r") as handle:
+            source = handle.read()
+        if file != okay and "subprocess.run" in source:
+            raise RuntimeError("File " + file + " use pmb.helpers.run.user()"
+                               " instead of subprocess.run()!")