deprecate backend method names for elliptic curve number loading

fixes #1270

1 files changed, 31 insertions, 5 deletions

diff --git a/tests/hazmat/backends/test_multibackend.py b/tests/hazmat/backends/test_multibackend.py
index 45c12b34..f3893cd0 100644
--- a/tests/hazmat/backends/test_multibackend.py
+++ b/tests/hazmat/backends/test_multibackend.py
@@ -13,6 +13,8 @@
 
 from __future__ import absolute_import, division, print_function
 
+import pytest
+
 from cryptography import utils
 from cryptography.exceptions import (
     UnsupportedAlgorithm, _Reasons
@@ -191,11 +193,17 @@ class DummyEllipticCurveBackend(object):
         if not self.elliptic_curve_supported(curve):
             raise UnsupportedAlgorithm(_Reasons.UNSUPPORTED_ELLIPTIC_CURVE)
 
-    def elliptic_curve_private_key_from_numbers(self, numbers):
+    def load_elliptic_curve_private_numbers(self, numbers):
         if not self.elliptic_curve_supported(numbers.public_numbers.curve):
             raise UnsupportedAlgorithm(_Reasons.UNSUPPORTED_ELLIPTIC_CURVE)
 
+    def elliptic_curve_private_key_from_numbers(self, numbers):
+        return None
+
     def elliptic_curve_public_key_from_numbers(self, numbers):
+        return None
+
+    def load_elliptic_curve_public_numbers(self, numbers):
         if not self.elliptic_curve_supported(numbers.curve):
             raise UnsupportedAlgorithm(_Reasons.UNSUPPORTED_ELLIPTIC_CURVE)
 
@@ -463,7 +471,7 @@ class TestMultiBackend(object):
 
         backend.generate_elliptic_curve_private_key(ec.SECT283K1())
 
-        backend.elliptic_curve_private_key_from_numbers(
+        backend.load_elliptic_curve_private_numbers(
             ec.EllipticCurvePrivateNumbers(
                 1,
                 ec.EllipticCurvePublicNumbers(
@@ -474,7 +482,7 @@ class TestMultiBackend(object):
             )
         )
 
-        backend.elliptic_curve_public_key_from_numbers(
+        backend.load_elliptic_curve_public_numbers(
             ec.EllipticCurvePublicNumbers(
                 2,
                 3,
@@ -493,7 +501,7 @@ class TestMultiBackend(object):
             backend.generate_elliptic_curve_private_key(ec.SECT163K1())
 
         with raises_unsupported_algorithm(_Reasons.UNSUPPORTED_ELLIPTIC_CURVE):
-            backend.elliptic_curve_private_key_from_numbers(
+            backend.load_elliptic_curve_private_numbers(
                 ec.EllipticCurvePrivateNumbers(
                     1,
                     ec.EllipticCurvePublicNumbers(
@@ -505,7 +513,7 @@ class TestMultiBackend(object):
             )
 
         with raises_unsupported_algorithm(_Reasons.UNSUPPORTED_ELLIPTIC_CURVE):
-            backend.elliptic_curve_public_key_from_numbers(
+            backend.load_elliptic_curve_public_numbers(
                 ec.EllipticCurvePublicNumbers(
                     2,
                     3,
@@ -513,6 +521,24 @@ class TestMultiBackend(object):
                 )
             )
 
+    def test_deprecated_elliptic_curve(self):
+        backend = MultiBackend([
+            DummyEllipticCurveBackend([
+                ec.SECT283K1
+            ])
+        ])
+        pub_numbers = ec.EllipticCurvePublicNumbers(2, 3, ec.SECT283K1())
+        numbers = ec.EllipticCurvePrivateNumbers(1, pub_numbers)
+
+        pytest.deprecated_call(
+            backend.elliptic_curve_private_key_from_numbers,
+            numbers
+        )
+        pytest.deprecated_call(
+            backend.elliptic_curve_public_key_from_numbers,
+            pub_numbers
+        )
+
     def test_pkcs8_serialization_backend(self):
         backend = MultiBackend([DummyPKCS8SerializationBackend()])