1 files changed, 20 insertions, 0 deletions
diff --git a/tests/test_x509.py b/tests/test_x509.py
index ccb24d7f..9c97e969 100644
--- a/tests/test_x509.py
+++ b/tests/test_x509.py
@@ -746,6 +746,26 @@ class TestRSACertificateRequest(object):
         assert request1 != request2
         assert request1 != object()
 
+    def test_hash(self, backend):
+        request1 = _load_cert(
+            os.path.join("x509", "requests", "rsa_sha1.pem"),
+            x509.load_pem_x509_csr,
+            backend
+        )
+        request2 = _load_cert(
+            os.path.join("x509", "requests", "rsa_sha1.pem"),
+            x509.load_pem_x509_csr,
+            backend
+        )
+        request3 = _load_cert(
+            os.path.join("x509", "requests", "san_rsa_sha1.pem"),
+            x509.load_pem_x509_csr,
+            backend
+        )
+
+        assert hash(request1) == hash(request2)
+        assert hash(request1) != hash(request3)
+
 
 @pytest.mark.requires_backend_interface(interface=X509Backend)
 class TestCertificateSigningRequestBuilder(object):