How to mock an instance variable using Mockito in java?
I’m a noob to unit testing and use of mockito
I have a class
public class SystemTenancyConfig { private String systemTenancy; } I have used this in another class where I’m getting the value:
@Inject SystemTenancyConfig systemTenancyConfig; String val = systemTenancyConfig.getsystemTenancy(); How do I mock systemTenancyConfig.getsystemTenancy() to be set to a string say "Test"? UpdatE:
@Mock private SystemTenancyConfig systemTenancyConfig; when(systemTenancyConfig.getSystemTenancy()).thenReturn("test"); is giving me a NPE
the condition when getsystemTenancy will trigger your mock
when(systemTenancy.getsystemTenancy()).thenReturn(what you want it return); systemTenancy.getsystemTenancy() also @Mock over the Object you want to mock the whole Object
example
@Inject private SystemTenancyConfig systemTenancyConfig; @Test function void testingSomething(){ when(systemTenancyConfig.getSystemTenancy()).thenReturn("test"); // condition to trigger the mock and return test String val = systemTenancyConfig.getsystemTenancy(); } 
