1 files changed, 53 insertions, 0 deletions
diff --git a/scripts/devscripts/test/test_flake8.py b/scripts/devscripts/test/test_flake8.py
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+++ b/scripts/devscripts/test/test_flake8.py
@@ -0,0 +1,53 @@
+# Copyright (C) 2017-2018, Benjamin Drung <bdrung@debian.org>
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+"""test_flake8.py - Run flake8 check"""
+
+import subprocess
+import sys
+import unittest
+
+from . import get_source_files, unittest_verbosity
+
+
+class Flake8TestCase(unittest.TestCase):
+    """
+    This unittest class provides a test that runs the flake8 code
+    checker (which combines pycodestyle and pyflakes) on the Python
+    source code. The list of source files is provided by the
+    get_source_files() function.
+    """
+
+    def test_flake8(self):
+        """Test: Run flake8 on Python source code"""
+        cmd = [sys.executable, "-m", "flake8", "--max-line-length=99"] + get_source_files()
+        if unittest_verbosity() >= 2:
+            sys.stderr.write(
+                "Running following command:\n{}\n".format(" ".join(cmd)))
+        process = subprocess.Popen(cmd, stdout=subprocess.PIPE,
+                                   stderr=subprocess.PIPE, close_fds=True)
+
+        out, err = process.communicate()
+        if process.returncode != 0:  # pragma: no cover
+            msgs = []
+            if err:
+                msgs.append("flake8 exited with code {} and has unexpected output on stderr:\n{}"
+                            .format(process.returncode, err.decode().rstrip()))
+            if out:
+                msgs.append("flake8 found issues:\n{}".format(
+                    out.decode().rstrip()))
+            if not msgs:
+                msgs.append("flake8 exited with code {} and has no output on stdout or stderr."
+                            .format(process.returncode))
+            self.fail("\n".join(msgs))