如何 JUnit 方法是 static 并返回 void

Question

How do I write JUnit for the below method?

public static void invokeAuditService(HttpServletRequest request, Date serviceCallTime, String response, 
            String activityKey, JSONObject detailsReplaceVal, String pmAccountId){
        AuditLogUtils.invokeAuditService(request, serviceCallTime, response, activityKey, detailsReplaceVal,  pmAccountId);
}

My code:

@Test
public void testInvokeAuditService() {
    PowerMockito.doNothing().when(WidgetHelper.class);
    WidgetHelper.invokeAuditService(Matchers.anyObject(), Matchers.anyObject(), Matchers.anyObject(), 
            Matchers.anyObject(), Matchers.anyObject(), Matchers.anyObject());
}

I am getting compiler error: The method invokeAuditService(HttpServletRequest, Date, String, String, JSONObject, String) in the type WidgetHelper is not applicable for the arguments (Object, Object, Object, Object, Object, Object)

Updated code:

@Test
    public void testInvokeAuditService() {
        
        PowerMockito.doNothing().when(WidgetHelper.class);
        WidgetHelper.invokeAuditService(servletRequest, date, "abc", "xyz",json, 
                "123");
        
        verifyStatic(WidgetHelper.class, Mockito.times(1));
        WidgetHelper.invokeAuditService(servletRequest, date, "abc", "xyz",json, 
                "123");
    }

This says: "Actually there were zero interactions with this mock" for the line after verifystatic.

Answer 1

You are passing all the values as Object in invokeAuditService method parameter. So you are getting this compiler error.

For example , you should pass the value of serviceCallTime, response, activityKey, detailsReplaceVal, pmAccountId

If you are not having value for all the parameters send the value as null value, but the null value should be handle in invokeAuditService method to avoid NullpointerException .

change the code like below

@Test
public void testInvokeAuditService() {
    PowerMockito.doNothing().when(WidgetHelper.class);
    WidgetHelper.invokeAuditService(null, null, null, null, null, null);    
}

Now your compiler error will resolve and maybe you will face NullpointerException in runtime

Answer 2

This worked:

@Test
    public void testInvokeAuditServiceWithSuccessFlagAndResponse() {
        
        PowerMockito.doNothing().when(WidgetHelper.class);
        WidgetHelper.invokeAuditService(servletRequest, date, "abc", json, 
                "123", "Y");
        
        verifyStatic(WidgetHelper.class, Mockito.times(1));
    }

I was actually asking Mockito to verify an interaction before the interaction has occurred.