@Test
public void testAddBubbleMessage() {

    // Setup
    final CommandMeta meta = mock(CommandMeta.class);
    final Stream<BaseTransactionEvent> events = Stream.of(mock(BaseTransactionEvent.class));
    // Run the test
    languageTranslatorImplUnderTest.addBubbleMessage(meta, events);
    // Verify the results
    verify(mockBubbleCache, atLeastOnce()).addBubble(anyString(), any(BubbleMessage.class));
}