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January 11, 2023
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How do I mock org.apache.commons.httpclient.methods.GetMethod

  • January 11, 2023
  • 2 replies
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I am struggling to mock the GetMethod. After when I execute the new HttpClient(); how do I mock the getMethod();

 

HttpClient httpClient = new HttpClient();
GetMethod getMethod = new GetMethod();
httpClient.executeMethod(getMethod);

 

thanks.

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Best answer by Ravi_Joshi

Hi @supportmember ,

When you are writing unit tests for code that uses the Apache HttpClient library, you may want to mock the HttpClient and GetMethod classes so that you can control their behavior and test your code in isolation.

One way to do this is to use a mocking framework like Mockito. With Mockito, you can create a mock object of the HttpClient class, and then use the when method to specify the behavior of the mock when the getMethod method is called. Here's an example:

HttpClient mockClient = mock(HttpClient.class);
GetMethod mockGetMethod = mock(GetMethod.class);
when(mockClient.getMethod("http://example.com")).thenReturn(mockGetMethod);

This will make the mockClient.getMethod("http://example.com") return mockGetMethod each time it's called. You can then use the verify method to check that the getMethod method was called with the expected arguments, and use the thenReturn method to specify the return value for the executeMethod method of the mock GetMethod:

verify(mockClient).getMethod("http://example.com");
when(mockGetMethod.executeMethod()).thenReturn(200);

This way you can test the behavior of your code without making any real HTTP requests and checking the status code of the getMethod request.

It's important to remember that you should mock out the external dependencies and test the unit of code and not the dependencies, otherwise you will have an integration test and not a unit test

Keep in mind that this is just one way of mocking the HttpClient and GetMethod classes, and there may be other ways to do it depending on your specific use case and testing framework.

Thanks,

Ravi Joshi

2 replies

Sady_Rifat
Community Advisor
Sady_RifatCommunity Advisor
Community Advisor
January 11, 2023

As far as I know, while you create an object by calling new HttpClient(), you cannot create a mock for that object. It will always call the real method. 

    Ravi_Joshi
    Ravi_JoshiAccepted solution
    Level 4
    January 11, 2023

    Hi @supportmember ,

    When you are writing unit tests for code that uses the Apache HttpClient library, you may want to mock the HttpClient and GetMethod classes so that you can control their behavior and test your code in isolation.

    One way to do this is to use a mocking framework like Mockito. With Mockito, you can create a mock object of the HttpClient class, and then use the when method to specify the behavior of the mock when the getMethod method is called. Here's an example:

    HttpClient mockClient = mock(HttpClient.class);
GetMethod mockGetMethod = mock(GetMethod.class);
when(mockClient.getMethod("http://example.com")).thenReturn(mockGetMethod);

    This will make the mockClient.getMethod("http://example.com") return mockGetMethod each time it's called. You can then use the verify method to check that the getMethod method was called with the expected arguments, and use the thenReturn method to specify the return value for the executeMethod method of the mock GetMethod:

    verify(mockClient).getMethod("http://example.com");
when(mockGetMethod.executeMethod()).thenReturn(200);

    This way you can test the behavior of your code without making any real HTTP requests and checking the status code of the getMethod request.

    It's important to remember that you should mock out the external dependencies and test the unit of code and not the dependencies, otherwise you will have an integration test and not a unit test

    Keep in mind that this is just one way of mocking the HttpClient and GetMethod classes, and there may be other ways to do it depending on your specific use case and testing framework.

    Thanks,

    Ravi Joshi

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