@Test
        @FeatureRequirement(featureClass = GraphFeatures.class, feature = FEATURE_COMPUTER, supported = false)
        public void shouldSupportComputerIfAGraphCanCompute() throws Exception {
            try {
                graph.compute();
                fail(String.format(INVALID_FEATURE_SPECIFICATION, GraphFeatures.class.getSimpleName(), FEATURE_COMPUTER));
            } catch (Exception e) {
                validateException(Graph.Exceptions.graphComputerNotSupported(), e);
            }
        }
A {@link Graph} that does not support {@link Graph.Features.GraphFeatures#FEATURE_COMPUTER} must call
{@link Graph.Exceptions#graphComputerNotSupported()}.
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/structure/FeatureSupportTest.java