[test] throw error from wrapper function instead of an EC_METHOD specific one

Reviewed-by: NPaul Dale <paul.dale@oracle.com>
Reviewed-by: NRichard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7028)

crypto/ec/ec_lib.c

@@ -757,6 +757,10 @@ int EC_POINT_get_affine_coordinates(const EC_GROUP *group,
         ECerr(EC_F_EC_POINT_GET_AFFINE_COORDINATES, EC_R_INCOMPATIBLE_OBJECTS);
         return 0;
     }
+    if (EC_POINT_is_at_infinity(group, point)) {
+        ECerr(EC_F_EC_POINT_GET_AFFINE_COORDINATES, EC_R_POINT_AT_INFINITY);
+        return 0;
+    }
     return group->meth->point_get_affine_coordinates(group, point, x, y, ctx);
 }
 

test/recipes/30-test_evp_data/evppkey.txt

@@ -17286,7 +17286,7 @@ Derive=ALICE_cf_sect283k1
 PeerKey=BOB_cf_sect283k1_PUB
 Ctrl=ecdh_cofactor_mode:1
 Result = DERIVE_ERROR
-Function=ec_GF2m_simple_point_get_affine_coordinates
+Function=EC_POINT_get_affine_coordinates
 Reason=point at infinity
 
 Title = Test keypair mismatches