Fix the new FnmatchMatcher for >100 patterns

2 files changed, 10 insertions, 2 deletions

diff --git a/tests/test_api.py b/tests/test_api.py
index c1e9294f..31bfc57f 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -221,7 +221,7 @@ class ApiTest(CoverageTest):
         self.assertEqual(cov.get_exclude_list(), ["foo"])
         cov.exclude("bar")
         self.assertEqual(cov.get_exclude_list(), ["foo", "bar"])
-        self.assertEqual(cov._exclude_regex('exclude'), "(foo)|(bar)")
+        self.assertEqual(cov._exclude_regex('exclude'), "(?:foo)|(?:bar)")
         cov.clear_exclude()
         self.assertEqual(cov.get_exclude_list(), [])
 
@@ -233,7 +233,9 @@ class ApiTest(CoverageTest):
         self.assertEqual(cov.get_exclude_list(which='partial'), ["foo"])
         cov.exclude("bar", which='partial')
         self.assertEqual(cov.get_exclude_list(which='partial'), ["foo", "bar"])
-        self.assertEqual(cov._exclude_regex(which='partial'), "(foo)|(bar)")
+        self.assertEqual(
+            cov._exclude_regex(which='partial'), "(?:foo)|(?:bar)"
+        )
         cov.clear_exclude(which='partial')
         self.assertEqual(cov.get_exclude_list(which='partial'), [])
 
diff --git a/tests/test_files.py b/tests/test_files.py
index 991c2b15..ea1c494c 100644
--- a/tests/test_files.py
+++ b/tests/test_files.py
@@ -93,6 +93,12 @@ class MatcherTest(CoverageTest):
         for filepath, matches in matches_to_try:
             self.assertMatches(fnm, filepath, matches)
 
+    def test_fnmatch_matcher_overload(self):
+        fnm = FnmatchMatcher(["*x%03d*.txt" % i for i in range(500)])
+        self.assertMatches(fnm, "x007foo.txt", True)
+        self.assertMatches(fnm, "x123foo.txt", True)
+        self.assertMatches(fnm, "x798bar.txt", False)
+
 
 class PathAliasesTest(CoverageTest):
     """Tests for coverage/files.py:PathAliases"""