如何更改Mockito中字符串的默认返回值？

Question

2010年的这个问题暗示了我正在努力做什么。

private Address createAddress(){
    Address address = mock(Address.class, new StringAnswer() );

    /* I want to replace repetitive calls like this, with a default string. 
    I just need these getters to return a String, not a specific string.

    when(address.getLocality()).thenReturn("Louisville");
    when(address.getStreet1()).thenReturn("1234 Fake Street Ln.");
    when(address.getStreet2()).thenReturn("Suite 1337");
    when(address.getRegion()).thenReturn("AK");
    when(address.getPostal()).thenReturn("45069");   
    */

    ISOCountry isoCountry = mock(ISOCountry.class);
    when(isoCountry.getIsocode()).thenReturn("US");
    when(address.getCountry()).thenReturn(isoCountry);

    return address;
}

//EDIT: This method returns an arbitrary string
private class StringAnswer implements Answer<Object> {
    @Override
    public Object answer(InvocationOnMock invocation) throws Throwable {
        String generatedString = "Generated String!";
           if( invocation.getMethod().getReturnType().isInstance( generatedString )){
               return generatedString;
           }
           else{
               return Mockito.RETURNS_DEFAULTS.answer(invocation);
           }
       }
}

Answer 1

我能够完全回答我自己的问题。

在本例中，生成Louisville本地地址，而其他字段类似于“address.getStreet1()；”。

private Address createAddress(){
    Address address = mock(Address.class, new StringAnswer() );

    when(address.getLocality()).thenReturn("Louisville");

    ISOCountry isoCountry = mock(ISOCountry.class);
    when(isoCountry.getIsocode()).thenReturn("US");
    when(address.getCountry()).thenReturn(isoCountry);

    return address;
}

private class StringAnswer implements Answer<Object> {
    @Override
    public Object answer(InvocationOnMock invocation) throws Throwable {
           if( invocation.getMethod().getReturnType().equals(String.class)){
               return invocation.toString();
           }
           else{
               return Mockito.RETURNS_DEFAULTS.answer(invocation);
           }
       }
}