data.line(contexts=) expects a glob pattern.

Author: nedbat

tests/contextful.py

@@ -72,11 +72,11 @@ def test_08(expensive_data):
 
 @pytest.fixture(params=[1, 2, 3])
 def parametrized_number(request):
-    return request.param                            # x9-1 x9-2 x9-3
+    return request.param                            # s9-1 s9-2 s9-3
 
 
 def test_09(parametrized_number):
-    assert parametrized_number > 0                  # x9-1 x9-2 x9-3
+    assert parametrized_number > 0                  # r9-1 r9-2 r9-3
 
 
 def test_10():

tests/test_pytest_cov.py

@@ -1942,7 +1942,7 @@ def find_labels(text, pattern):
     return all_labels
 
 
-# The contexts in contextful.py
+# The contexts and their labels in contextful.py
 EXPECTED_CONTEXTS = {
     '': 'c0',
     'test_contexts.py::test_01|run': 'r1',
@@ -1995,7 +1995,9 @@ def test_contexts(testdir, opts):
     for context, label in EXPECTED_CONTEXTS.items():
         if context == '':
             continue
-        assert data.lines(test_context_path, contexts=[context]) == line_data[label], "Wrong lines for context {!r}".format(context)
+        context_pattern = re.sub(r"[\[\|]", r"[\g<0>]", context)
+        actual = data.lines(test_context_path, contexts=[context_pattern])
+        assert line_data[label] == actual, "Wrong lines for context {!r}".format(context)
 
 
 @pytest.mark.skipif("coverage.version_info >= (5, 0)")