Move around bits of the EC test suite to work around awful PyPy bug
diff --git a/src/cryptography/hazmat/backends/openssl/backend.py b/src/cryptography/hazmat/backends/openssl/backend.py
index 34efdce..75d7e32 100644
--- a/src/cryptography/hazmat/backends/openssl/backend.py
+++ b/src/cryptography/hazmat/backends/openssl/backend.py
@@ -985,9 +985,6 @@
                 "Invalid EC key. Both x and y must be non-negative."
             )
 
-        bn_x = self._int_to_bn(x)
-        bn_y = self._int_to_bn(y)
-
         set_func, get_func, group = (
             self._ec_key_determine_group_get_set_funcs(ctx)
         )
@@ -996,6 +993,9 @@
         assert point != self._ffi.NULL
         point = self._ffi.gc(point, self._lib.EC_POINT_free)
 
+        bn_x = self._int_to_bn(x)
+        bn_y = self._int_to_bn(y)
+
         with self._tmp_bn_ctx() as bn_ctx:
             check_x = self._lib.BN_CTX_get(bn_ctx)
             check_y = self._lib.BN_CTX_get(bn_ctx)
@@ -1006,8 +1006,10 @@
             res = get_func(group, point, check_x, check_y, bn_ctx)
             assert res == 1
 
-            assert self._lib.BN_cmp(bn_x, check_x) == 0
-            assert self._lib.BN_cmp(bn_y, check_y) == 0
+            res = self._lib.BN_cmp(bn_x, check_x)
+            assert res == 0
+            res = self._lib.BN_cmp(bn_y, check_y)
+            assert res == 0
 
         res = self._lib.EC_KEY_set_public_key(ctx, point)
         assert res == 1
diff --git a/tests/hazmat/backends/test_openssl.py b/tests/hazmat/backends/test_openssl.py
index b6bb549..5b5c7bd 100644
--- a/tests/hazmat/backends/test_openssl.py
+++ b/tests/hazmat/backends/test_openssl.py
@@ -249,19 +249,6 @@
         assert res == 1
         assert backend._ffi.buffer(buf)[:] != "\x00" * 500
 
-    def test_activate_osrandom_already_default(self):
-        e = backend._lib.ENGINE_get_default_RAND()
-        name = backend._lib.ENGINE_get_name(e)
-        assert name == backend._lib.Cryptography_osrandom_engine_name
-        res = backend._lib.ENGINE_free(e)
-        assert res == 1
-        backend.activate_osrandom_engine()
-        e = backend._lib.ENGINE_get_default_RAND()
-        name = backend._lib.ENGINE_get_name(e)
-        assert name == backend._lib.Cryptography_osrandom_engine_name
-        res = backend._lib.ENGINE_free(e)
-        assert res == 1
-
     def test_activate_osrandom_no_default(self):
         backend.activate_builtin_random()
         e = backend._lib.ENGINE_get_default_RAND()
@@ -292,6 +279,19 @@
         e = backend._lib.ENGINE_get_default_RAND()
         assert e == backend._ffi.NULL
 
+    def test_activate_osrandom_already_default(self):
+        e = backend._lib.ENGINE_get_default_RAND()
+        name = backend._lib.ENGINE_get_name(e)
+        assert name == backend._lib.Cryptography_osrandom_engine_name
+        res = backend._lib.ENGINE_free(e)
+        assert res == 1
+        backend.activate_osrandom_engine()
+        e = backend._lib.ENGINE_get_default_RAND()
+        name = backend._lib.ENGINE_get_name(e)
+        assert name == backend._lib.Cryptography_osrandom_engine_name
+        res = backend._lib.ENGINE_free(e)
+        assert res == 1
+
 
 class TestOpenSSLRSA(object):
     def test_generate_rsa_parameters_supported(self):