Overrided the default test command in order to enable manual overriding of the discover-runner settings.

Added options to customize the test loader and the order of test cases in the suite further on in the inheritance chain.

discover_runner/management/commands/test.py

@@ -0,0 +1,15 @@
+from optparse import make_option
+from django.core.management.commands.test import Command as TestCommand
+
+class Command(TestCommand):
+    option_list = TestCommand.option_list + (
+        make_option('--root',
+            action='store', dest='test_discover_root', default=None,
+            help='Overrides the TEST_DISCOVER_ROOT setting.'),
+        make_option('--top-level',
+            action='store', dest='test_discover_top_level', default=None,
+            help='Overrides the TEST_TOP_LEVEL setting.'),
+        make_option('--pattern',
+            action='store', dest='test_discover_pattern', default=None,
+            help='Overrides the TEST_DISCOVER_PATTERN setting.'),
+    )

discover_runner/runner.py

@@ -1,8 +1,8 @@
-from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured
 from django.test import TestCase
 from django.test.simple import DjangoTestSuiteRunner, reorder_suite
 from django.utils.importlib import import_module
+from settings import TEST_DISCOVER_ROOT, TEST_DISCOVER_TOP_LEVEL, TEST_DISCOVER_PATTERN
 
 try:
     from django.utils.unittest import defaultTestLoader
@@ -16,30 +16,42 @@ except ImportError:
 
 
 class DiscoverRunner(DjangoTestSuiteRunner):
+    testLoader = defaultTestLoader
+    reorder_by = (TestCase,)
+
+    def __init__(self, test_discover_root=None, test_discover_top_level=None, test_discover_pattern=None, *args,
+                 **kwargs):
+        self.test_discover_root = test_discover_root or TEST_DISCOVER_ROOT
+        self.test_discover_top_level = test_discover_top_level or TEST_DISCOVER_TOP_LEVEL
+        self.test_discover_pattern = test_discover_pattern or TEST_DISCOVER_PATTERN
+
+        super(DiscoverRunner, self).__init__(*args, **kwargs)
+
     """
     A test suite runner that uses unittest2 test discovery.
 
 
     """
-    def build_suite(self, test_labels, extra_tests=None, **kwargs):
+
+    def build_suite(self, test_labels, extra_tests=None):
         suite = None
-        root = getattr(settings, 'TEST_DISCOVER_ROOT', '.')
-        top_level = getattr(settings, 'TEST_DISCOVER_TOP_LEVEL', None)
-        pattern = getattr(settings, 'TEST_DISCOVER_PATTERN', 'test*.py')
+        root = self.test_discover_root
+        top_level = self.test_discover_top_level
+        pattern = self.test_discover_pattern
 
         if test_labels:
-            suite = defaultTestLoader.loadTestsFromNames(test_labels)
+            suite = self.testLoader.loadTestsFromNames(test_labels)
             # if single named module has no tests, do discovery within it
             if not suite.countTestCases() and len(test_labels) == 1:
                 suite = None
                 root = import_module(test_labels[0]).__path__[0]
 
         if suite is None:
-            suite = defaultTestLoader.discover(root,
+            suite = self.testLoader.discover(root,
                 pattern=pattern, top_level_dir=top_level)
 
         if extra_tests:
             for test in extra_tests:
                 suite.addTest(test)
 
-        return reorder_suite(suite, (TestCase,))
+        return reorder_suite(suite, self.reorder_by)

discover_runner/settings.py

@@ -0,0 +1,5 @@
+from django.conf import settings
+
+TEST_DISCOVER_ROOT = getattr(settings, 'TEST_DISCOVER_ROOT', '.')
+TEST_DISCOVER_TOP_LEVEL = getattr(settings, 'TEST_DISCOVER_TOP_LEVEL', None)
+TEST_DISCOVER_PATTERN = getattr(settings, 'TEST_DISCOVER_PATTERN', 'test*.py')