Implicit namespaces support

CHANGES.rst

@@ -5,8 +5,8 @@
 6.4 (unreleased)
 ================
 
-- Nothing changed yet.
-
+- Add PEP 440 support (implicit namespaces).
+  (`#160 <https://github.com/zopefoundation/zope.testrunner/issues/160>`_)
 
 6.3.1 (2024-02-12)
 ==================

src/zope/testrunner/find.py

@@ -25,7 +25,12 @@
 from zope.testrunner.filter import build_filtering_func
 
 
-identifier = re.compile(r'[_a-zA-Z]\w*$').match
+identifier = re.compile(r'[_a-z]\w*$', re.I).match
+IGNORE_FOLDERS = {
+    '.git',
+    'node_modules',
+    '__pycache__'
+}
 
 
 class DuplicateTestIDError(Exception):
@@ -292,13 +297,10 @@ def update_root2ext(dirname, noext, withext):
 
     for (p, package) in test_dirs(options, {}):
         for dirname, dirs, files in walk_with_symlinks(options, p):
-            if dirname != p and not contains_init_py(options, files):
-                # This is not a plausible test directory. Avoid descending
-                # further.
-                del dirs[:]
-                continue
             root2ext = {}
-            dirs[:] = [d for d in dirs if identifier(d)]
+            dirs[:] = [
+                d for d in dirs if identifier(d) and d not in IGNORE_FOLDERS
+            ]
             d = os.path.split(dirname)[1]
             if tests_pattern(d) and contains_init_py(options, files):
                 # tests directory

src/zope/testrunner/tests/test_find.py

@@ -81,3 +81,19 @@ def test_DuplicateTestIDError_message_contains_all_test_ids(self):
         self.assertIn(
             os.path.join('testrunner-ex', 'sampletestsl.rst'),
             str(e.exception))
+
+
+class TestIdentifierMatches(unittest.TestCase):
+    """Test which folders are ignored by the test runner."""
+
+    def test_ignored(self):
+        folders = ('spaces are bad', 'dashes-bad', 'ünicodeLeading')
+        for name in folders:
+            self.assertFalse(find.identifier(name), f'{name} is accepted')
+
+    def test_accepted(self):
+        folders = (
+            'random', 'CamelCase', 'Under_scores', '_leading_scores', 'unicöde'
+        )
+        for name in folders:
+            self.assertTrue(find.identifier(name), f'{name} is not accepted')

src/zope/testrunner/tests/testrunner-edge-cases.rst

@@ -419,8 +419,10 @@ Post-mortem debugging of a docfile doctest failure:
 
 Post-mortem debugging with triple verbosity
 
+    >>> sys.stdin = Input('p x\nc')
     >>> sys.argv = 'test --layer samplelayers.Layer1$ -vvv -D'.split()
-    >>> testrunner.run_internal(defaults)
+    >>> try: testrunner.run_internal(defaults)
+    ... finally: sys.stdin = real_stdin
     Running tests at level 1
     Running samplelayers.Layer1 tests:
       Set up samplelayers.Layer1 in 0.000 seconds.