Improve run_tests.py, allowing it to run only specific tests.

run_tests.py

@@ -1,33 +1,32 @@
 #!/usr/bin/env python3
 
 import sys
-
-import os
 import logging
 import unittest
-import distutils.core
 
-from glob import glob
-from os.path import splitext, basename, join as pjoin
+from argparse import ArgumentParser
+from distutils.core import Command
+from importlib import import_module
+from pathlib import Path
 
 
-def run_tests():
+def run_tests(filenames=None):
     """
     Find and run all tests in the tests/ directory.
 
     Excludes live tests (tests/live_*).
     """
-    testfiles = ['tests.test_overall']
-    exclude = ['__init__.py', 'test_overall.py']
-    for t in glob(pjoin('tests', '*.py')):
-        if True not in [t.endswith(ex) for ex in exclude]:
-            if basename(t).startswith('test_'):
-                testfiles.append('tests.%s' % splitext(basename(t))[0])
+    if not filenames:
+        filenames = [i for i in Path('tests').glob('test_*')]
+    else:
+        filenames = [Path(i) for i in filenames]
+
+    modules = ['.'.join(test.parts[:-1] + (test.stem,)) for test in filenames]
 
     suites = []
-    for file in testfiles:
-        __import__(file)
-        suites.append(sys.modules[file].suite)
+    for filename in modules:
+        module = import_module(filename)
+        suites.append(module.suite)
 
     tests = unittest.TestSuite(suites)
     runner = unittest.TextTestRunner(verbosity=2)
@@ -42,12 +41,12 @@ def run_tests():
 
 # Add a 'test' command for setup.py
 
-class TestCommand(distutils.core.Command):
+class TestCommand(Command):
 
-    user_options = [ ]
+    user_options = []
 
     def initialize_options(self):
-        self._dir = os.getcwd()
+        pass
 
     def finalize_options(self):
         pass
@@ -57,8 +56,14 @@ class TestCommand(distutils.core.Command):
 
 
 if __name__ == '__main__':
-    result = run_tests()
+    parser = ArgumentParser(description='Run unit tests.')
+    parser.add_argument('tests', metavar='TEST', nargs='*', help='list of tests to run, or nothing to run them all')
+    args = parser.parse_args()
+
+    result = run_tests(args.tests)
     print("<tests %s ran='%s' errors='%s' fails='%s' success='%s'/>" % (
         "xmlns='http//andyet.net/protocol/tests'",
         result.testsRun, len(result.errors),
         len(result.failures), result.wasSuccessful()))
+
+    sys.exit(not result.wasSuccessful())

setup.py

@@ -13,7 +13,7 @@ try:
 except ImportError:
     from distutils.core import setup
 
-from testall import TestCommand
+from run_tests import TestCommand
 from slixmpp.version import __version__
 
 VERSION = __version__