mockito Mocking consecutive calls to a void return method Faking a transient error
Example
Imagine you're testing code that makes a call to this interface, and you want to make sure your retry code is working.
public interface DataStore {
void save(Data data) throws IOException;
}
You could do something like this:
public void saveChanges_Retries_WhenDataStoreCallFails() {
DataStore dataStore = new DataStore();
Data data = new Data();
doThrow(IOException.class).doNothing().when(dataStore).save(data);
dataStore.save(data);
verify(dataStore, times(2)).save(data);
verifyDataWasSaved();
}
