5 files changed, 2 insertions, 117 deletions
diff --git a/tests/hazmat/backends/test_backendinit.py b/tests/hazmat/backends/test_backendinit.py
deleted file mode 100644
index b930f99f..00000000
--- a/tests/hazmat/backends/test_backendinit.py
+++ /dev/null
@@ -1,17 +0,0 @@
-# This file is dual licensed under the terms of the Apache License, Version
-# 2.0, and the BSD License. See the LICENSE file in the root of this repository
-# for complete details.
-
-from __future__ import absolute_import, division, print_function
-
-from cryptography.hazmat.backends import _backend_import_fallback
-
-
-def test_backend_import_fallback_empty_backends():
-    backends = _backend_import_fallback([])
-    assert len(backends) >= 1
-
-
-def test_backend_import_fallback_existing_backends():
-    backend_list = [1, 2, 3, 4]
-    assert backend_list == _backend_import_fallback(backend_list)
diff --git a/tests/hazmat/backends/test_commoncrypto.py b/tests/hazmat/backends/test_commoncrypto.py
deleted file mode 100644
index 2b730e93..00000000
--- a/tests/hazmat/backends/test_commoncrypto.py
+++ /dev/null
@@ -1,54 +0,0 @@
-# This file is dual licensed under the terms of the Apache License, Version
-# 2.0, and the BSD License. See the LICENSE file in the root of this repository
-# for complete details.
-
-from __future__ import absolute_import, division, print_function
-
-import pytest
-
-from cryptography.exceptions import InternalError, _Reasons
-from cryptography.hazmat.backends import _available_backends
-from cryptography.hazmat.primitives.ciphers import Cipher
-from cryptography.hazmat.primitives.ciphers.algorithms import AES
-from cryptography.hazmat.primitives.ciphers.modes import CBC, GCM
-
-from ...doubles import DummyCipherAlgorithm
-from ...utils import raises_unsupported_algorithm
-
-
-@pytest.mark.skipif("commoncrypto" not in
-                    [i.name for i in _available_backends()],
-                    reason="CommonCrypto not available")
-class TestCommonCrypto(object):
-    def test_supports_cipher(self):
-        from cryptography.hazmat.backends.commoncrypto.backend import backend
-        assert backend.cipher_supported(None, None) is False
-
-    def test_register_duplicate_cipher_adapter(self):
-        from cryptography.hazmat.backends.commoncrypto.backend import backend
-        with pytest.raises(ValueError):
-            backend._register_cipher_adapter(
-                AES, backend._lib.kCCAlgorithmAES128,
-                CBC, backend._lib.kCCModeCBC
-            )
-
-    def test_handle_response(self):
-        from cryptography.hazmat.backends.commoncrypto.backend import backend
-
-        with pytest.raises(ValueError):
-            backend._check_cipher_response(backend._lib.kCCAlignmentError)
-
-        with pytest.raises(InternalError):
-            backend._check_cipher_response(backend._lib.kCCMemoryFailure)
-
-        with pytest.raises(InternalError):
-            backend._check_cipher_response(backend._lib.kCCDecodeError)
-
-    def test_nonexistent_aead_cipher(self):
-        from cryptography.hazmat.backends.commoncrypto.backend import Backend
-        b = Backend()
-        cipher = Cipher(
-            DummyCipherAlgorithm(), GCM(b"fake_iv_here"), backend=b,
-        )
-        with raises_unsupported_algorithm(_Reasons.UNSUPPORTED_CIPHER):
-            cipher.encryptor()
diff --git a/tests/hazmat/bindings/test_commoncrypto.py b/tests/hazmat/bindings/test_commoncrypto.py
deleted file mode 100644
index b0a2dc43..00000000
--- a/tests/hazmat/bindings/test_commoncrypto.py
+++ /dev/null
@@ -1,26 +0,0 @@
-# This file is dual licensed under the terms of the Apache License, Version
-# 2.0, and the BSD License. See the LICENSE file in the root of this repository
-# for complete details.
-
-from __future__ import absolute_import, division, print_function
-
-import pytest
-
-
-ccbinding = pytest.importorskip(
-    "cryptography.hazmat.bindings.commoncrypto.binding"
-)
-
-
-class TestCommonCrypto(object):
-    def test_binding_loads(self):
-        binding = ccbinding.Binding()
-        assert binding
-        assert binding.lib
-        assert binding.ffi
-
-    def test_binding_returns_same_lib(self):
-        binding = ccbinding.Binding()
-        binding2 = ccbinding.Binding()
-        assert binding.lib == binding2.lib
-        assert binding.ffi == binding2.ffi
diff --git a/tests/hazmat/primitives/test_cast5.py b/tests/hazmat/primitives/test_cast5.py
index 59af84f5..ec51659d 100644
--- a/tests/hazmat/primitives/test_cast5.py
+++ b/tests/hazmat/primitives/test_cast5.py
@@ -82,20 +82,3 @@ class TestCAST5ModeCFB(object):
         lambda key, **kwargs: algorithms.CAST5(binascii.unhexlify((key))),
         lambda iv, **kwargs: modes.CFB(binascii.unhexlify(iv))
     )
-
-
-@pytest.mark.supported(
-    only_if=lambda backend: backend.cipher_supported(
-        algorithms.CAST5(b"\x00" * 16), modes.CTR(b"\x00" * 8)
-    ),
-    skip_message="Does not support CAST5 CTR",
-)
-@pytest.mark.requires_backend_interface(interface=CipherBackend)
-class TestCAST5ModeCTR(object):
-    test_CTR = generate_encrypt_test(
-        load_nist_vectors,
-        os.path.join("ciphers", "CAST5"),
-        ["cast5-ctr.txt"],
-        lambda key, **kwargs: algorithms.CAST5(binascii.unhexlify((key))),
-        lambda iv, **kwargs: modes.CTR(binascii.unhexlify(iv))
-    )
diff --git a/tests/hazmat/primitives/utils.py b/tests/hazmat/primitives/utils.py
index 59326367..b8200123 100644
--- a/tests/hazmat/primitives/utils.py
+++ b/tests/hazmat/primitives/utils.py
@@ -47,10 +47,9 @@ def generate_encrypt_test(param_loader, path, file_names, cipher_factory,
 
 
 def encrypt_test(backend, cipher_factory, mode_factory, params):
-    if not backend.cipher_supported(
+    assert backend.cipher_supported(
         cipher_factory(**params), mode_factory(**params)
-    ):
-        pytest.skip("cipher/mode combo is unsupported by this backend")
+    )
 
     plaintext = params["plaintext"]
     ciphertext = params["ciphertext"]