public void State_pattern_test()
{
string TEST_POLICY_NUMBER = "007";
var testPolicy = new Policy(TEST_POLICY_NUMBER);
var testCancelledState = new CancelledState(testPolicy);
var testClosedState = new ClosedState(testPolicy);
var testOpenState = new OpenState(testPolicy);
var testUnwrittenState = new UnwrittenState(testPolicy);
var testVoidState = new VoidState(testPolicy);
//closing open policy
testOpenState.Close(DateTime.Now);
Assert.IsInstanceOfType(testPolicy.State, typeof(ClosedState));
}
