@Override
            public Object getProperty(String name, Object contextObj, VariableResolverFactory variableFactory) {
                ObjectNode node = (ObjectNode) contextObj;
                TestVariableResolver resolver = new TestVariableResolver(node, name);
                return resolver.getValue();
            }
Evaluates the given expression against the given JSON object.

@param bindExpression
@param json
test/common/src/main/java/io/apiman/test/common/util/TestPlanRunner.java