1 files changed, 16 insertions, 0 deletions
diff --git a/test/test_websockets.py b/test/test_websockets.py
index d8e56a8f..428f7c61 100644
--- a/test/test_websockets.py
+++ b/test/test_websockets.py
@@ -232,3 +232,19 @@ class TestFrame:
     def test_human_readable(self):
         f = websockets.Frame()
         assert f.human_readable()
+
+
+def test_masker():
+    tests = [
+        ["a"],
+        ["four"],
+        ["fourf"],
+        ["fourfive"],
+        ["a", "aasdfasdfa", "asdf"],
+        ["a"*50, "aasdfasdfa", "asdf"],
+    ]
+    for i in tests:
+        m = websockets.Masker("abcd")
+        data = "".join([m(t) for t in i])
+        data2 = websockets.Masker("abcd")(data)
+        assert data2 == "".join(i)