From 12a1cacb6ae6de51a003dcc884e769854a1345a8 Mon Sep 17 00:00:00 2001
From: Paul Kehrer <paul.l.kehrer@gmail.com>
Date: Tue, 17 Jul 2018 22:56:12 +0800
Subject: raise ValueError on zero length GCM IV (#4348)

---
 tests/hazmat/primitives/test_block.py | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'tests/hazmat')

diff --git a/tests/hazmat/primitives/test_block.py b/tests/hazmat/primitives/test_block.py
index c053feaf..37158f15 100644
--- a/tests/hazmat/primitives/test_block.py
+++ b/tests/hazmat/primitives/test_block.py
@@ -191,6 +191,10 @@ class TestModeValidation(object):
                 backend,
             )
 
+    def test_gcm(self):
+        with pytest.raises(ValueError):
+            modes.GCM(b"")
+
 
 class TestModesRequireBytes(object):
     def test_cbc(self):
-- 
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