Find tests that are skipped in every configuration (#1969)

* Find tests that are skipped everywhere

* Address some of the comments in the PR

Author: mdboom

cuda_bindings/tests/test_cuda.py

@@ -43,6 +43,11 @@ def callableBinary(name):
     return shutil.which(name) is not None
 
 
+@pytest.mark.skipif(True, reason="Always skip!")
+def test_always_skip():
+    pass
+
+
 def test_cuda_memcpy():
     # Get device