CODEWITHSUNDEEP
javaweb-servicesjunitlogic
Deva
Deva

Reputation: 1039

How to test Java web service with JUnit?

I need to test a service by JUnit.

Here is my code : 

public class AdviesBoxTestDaoImpl {
    private SearchDaoImpl  searchDaoImpl;
    private SearchParametersDto searchParametersDto;

    JSONObject jsonObject;


    @Before
    public void loadJsonFile(){
     try{
        ObjectMapper mapper = new ObjectMapper();
        searchParametersDto =  mapper.readValue(new File("D:\\productsData.json"), SearchParametersDto.class);
     }
     catch(Exception e){

     }
}


    @Test
    public void testsDemoMethod() throws SQLException {
        System.out.println(searchParametersDto.toString());
        assertEquals( "Products saved successfully",
                searchDaoImpl.inTable(searchParametersDto));
    }
}

Result of my service is message as "Products saved successfully" in String which is I am comparing here. Each time I run the test case , I get the NullPointerException Error.

What changes I should make in the code so that I can test the service correctly?

Upvotes: 2

Views: 63

Answers (1)

Stefan Birkner
Stefan Birkner

Reputation: 24510

You should not catch the exception in the loadJsonFile() method. It hides any exception and you don't see the real cause of failing tests. Here is an improved loadJsonFile().

@Before
public void loadJsonFile() throws Exception {
    ObjectMapper mapper = new ObjectMapper();
    searchParametersDto =  mapper.readValue(
        new File("D:\\productsData.json"),
        SearchParametersDto.class
    );
}

Upvotes: 1

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