1 files changed, 14 insertions, 0 deletions
diff --git a/library/python/testing/coverage_utils/__init__.py b/library/python/testing/coverage_utils/__init__.py
new file mode 100644
index 00000000000..3313eee7b50
--- /dev/null
+++ b/library/python/testing/coverage_utils/__init__.py
@@ -0,0 +1,14 @@
+import re
+
+
+def make_filter(prefix_filter, exclude_regexp):
+    filters = []
+    if prefix_filter:
+        filters.append(lambda x: x.startswith(prefix_filter))
+    if exclude_regexp:
+        regexp = re.compile(exclude_regexp)
+        filters.append(lambda x: not regexp.search(x))
+
+    if filters:
+        return lambda x: all(pred(x) for pred in filters)
+    return lambda x: True