Add tests to the CSR Builder for EC and DSA keys

This skips certain tests on certain versions of differences in how
X509_REQ_sign works on those versions. A separate pull request will address
those differences.

1 files changed, 24 insertions, 1 deletions

diff --git a/tests/hazmat/backends/test_openssl.py b/tests/hazmat/backends/test_openssl.py
index b35e7670..4275b593 100644
--- a/tests/hazmat/backends/test_openssl.py
+++ b/tests/hazmat/backends/test_openssl.py
@@ -21,13 +21,14 @@ from cryptography.hazmat.backends.openssl.backend import (
 )
 from cryptography.hazmat.backends.openssl.ec import _sn_to_elliptic_curve
 from cryptography.hazmat.primitives import hashes, serialization
-from cryptography.hazmat.primitives.asymmetric import dsa, padding
+from cryptography.hazmat.primitives.asymmetric import dsa, ec, padding
 from cryptography.hazmat.primitives.ciphers import (
     BlockCipherAlgorithm, Cipher, CipherAlgorithm
 )
 from cryptography.hazmat.primitives.ciphers.algorithms import AES
 from cryptography.hazmat.primitives.ciphers.modes import CBC, CTR, Mode
 
+from ..primitives.fixtures_dsa import DSA_KEY_2048
 from ..primitives.fixtures_rsa import RSA_KEY_2048, RSA_KEY_512
 from ...utils import load_vectors_from_file, raises_unsupported_algorithm
 
@@ -453,6 +454,28 @@ class TestOpenSSLCMAC(object):
             backend.create_cmac_ctx(FakeAlgorithm())
 
 
+class TestOpenSSLCreateX509CSR(object):
+    @pytest.mark.skipif(
+        backend._lib.OPENSSL_VERSION_NUMBER >= 0x10001000,
+        reason="Requires an older OpenSSL. Must be < 1.0.1"
+    )
+    def test_unsupported_dsa_keys(self):
+        private_key = DSA_KEY_2048.private_key(backend)
+
+        with pytest.raises(NotImplementedError):
+            backend.create_x509_csr(object(), private_key, hashes.SHA1())
+
+    @pytest.mark.skipif(
+        backend._lib.OPENSSL_VERSION_NUMBER >= 0x10001000,
+        reason="Requires an older OpenSSL. Must be < 1.0.1"
+    )
+    def test_unsupported_ec_keys(self):
+        private_key = ec.generate_private_key(ec.SECT283K1(), backend)
+
+        with pytest.raises(NotImplementedError):
+            backend.create_x509_csr(object(), private_key, hashes.SHA1())
+
+
 class TestOpenSSLSerialisationWithOpenSSL(object):
     def test_pem_password_cb_buffer_too_small(self):
         ffi_cb, cb = backend._pem_password_cb(b"aa")