From ac7f70a1dc284339238fcfbdfba4f76476ab3d29 Mon Sep 17 00:00:00 2001
From: Alex Gaynor <alex.gaynor@gmail.com>
Date: Sun, 28 Jun 2015 11:07:52 -0400
Subject: fix the not implemeneted test

---
 src/cryptography/x509.py | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src')

diff --git a/src/cryptography/x509.py b/src/cryptography/x509.py
index 668bc2ef..a091cd78 100644
--- a/src/cryptography/x509.py
+++ b/src/cryptography/x509.py
@@ -1472,6 +1472,10 @@ class CertificateSigningRequestBuilder(object):
             extension = Extension(
                 OID_SUBJECT_ALTERNATIVE_NAME, critical, extension
             )
+        elif isinstance(extension, KeyUsage):
+            extension = Extension(
+                OID_KEY_USAGE, critical, extension
+            )
         else:
             raise NotImplementedError('Unsupported X.509 extension.')
         # TODO: This is quadratic in the number of extensions
-- 
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