split backend up (refs #170)

* Moves cipher methods into a Ciphers class and hash methods to a Hashes
  class and makes them available inside Backend as pluralized
  attributes.
* Shortened many of the methods since their purpose is now defined by
  their container class

1 files changed, 12 insertions, 11 deletions

diff --git a/tests/primitives/test_hashes.py b/tests/primitives/test_hashes.py
index 2efda050..174fd5f4 100644
--- a/tests/primitives/test_hashes.py
+++ b/tests/primitives/test_hashes.py
@@ -39,17 +39,18 @@ class TestBaseHash(object):
 
 class TestCopyHash(object):
     def test_copy_backend_object(self):
-        pretend_backend = pretend.stub(copy_hash_context=lambda a: "copiedctx")
+        pretend_hashes = pretend.stub(copy_ctx=lambda a: "copiedctx")
+        pretend_backend = pretend.stub(hashes=pretend_hashes)
         pretend_ctx = pretend.stub()
         h = hashes.SHA1(backend=pretend_backend, ctx=pretend_ctx)
         assert h._backend is pretend_backend
         assert h.copy()._backend is h._backend
 
 
-class TestDefaultAPISHA1(object):
+class TestDefaultBackendSHA1(object):
     def test_default_backend_creation(self):
         """
-        This test assumes the presence of SHA1 in the default API.
+        This test assumes the presence of SHA1 in the default backend.
         """
         h = hashes.SHA1()
         assert h._backend is _default_backend
@@ -60,7 +61,7 @@ class TestSHA1(object):
         hashes.SHA1,
         digest_size=20,
         block_size=64,
-        only_if=lambda backend: backend.supports_hash(hashes.SHA1),
+        only_if=lambda backend: backend.hashes.supported(hashes.SHA1),
         skip_message="Does not support SHA1",
     )
 
@@ -70,7 +71,7 @@ class TestSHA224(object):
         hashes.SHA224,
         digest_size=28,
         block_size=64,
-        only_if=lambda backend: backend.supports_hash(hashes.SHA224),
+        only_if=lambda backend: backend.hashes.supported(hashes.SHA224),
         skip_message="Does not support SHA224",
     )
 
@@ -80,7 +81,7 @@ class TestSHA256(object):
         hashes.SHA256,
         digest_size=32,
         block_size=64,
-        only_if=lambda backend: backend.supports_hash(hashes.SHA256),
+        only_if=lambda backend: backend.hashes.supported(hashes.SHA256),
         skip_message="Does not support SHA256",
     )
 
@@ -90,7 +91,7 @@ class TestSHA384(object):
         hashes.SHA384,
         digest_size=48,
         block_size=128,
-        only_if=lambda backend: backend.supports_hash(hashes.SHA384),
+        only_if=lambda backend: backend.hashes.supported(hashes.SHA384),
         skip_message="Does not support SHA384",
     )
 
@@ -100,7 +101,7 @@ class TestSHA512(object):
         hashes.SHA512,
         digest_size=64,
         block_size=128,
-        only_if=lambda backend: backend.supports_hash(hashes.SHA512),
+        only_if=lambda backend: backend.hashes.supported(hashes.SHA512),
         skip_message="Does not support SHA512",
     )
 
@@ -110,7 +111,7 @@ class TestRIPEMD160(object):
         hashes.RIPEMD160,
         digest_size=20,
         block_size=64,
-        only_if=lambda backend: backend.supports_hash(hashes.RIPEMD160),
+        only_if=lambda backend: backend.hashes.supported(hashes.RIPEMD160),
         skip_message="Does not support RIPEMD160",
     )
 
@@ -120,7 +121,7 @@ class TestWhirlpool(object):
         hashes.Whirlpool,
         digest_size=64,
         block_size=64,
-        only_if=lambda backend: backend.supports_hash(hashes.Whirlpool),
+        only_if=lambda backend: backend.hashes.supported(hashes.Whirlpool),
         skip_message="Does not support Whirlpool",
     )
 
@@ -130,6 +131,6 @@ class TestMD5(object):
         hashes.MD5,
         digest_size=16,
         block_size=64,
-        only_if=lambda backend: backend.supports_hash(hashes.MD5),
+        only_if=lambda backend: backend.hashes.supported(hashes.MD5),
         skip_message="Does not support MD5",
     )