@Override
  public void resetSentence() {
    mPreviousWord = null;
  }
@Test
  public void testResetSentence() throws Exception {
    mNextWordDictionaryUnderTest.load();

    assertHasNextWordsForWord(mNextWordDictionaryUnderTest, "hello");
    assertHasNextWordsForWord(mNextWordDictionaryUnderTest, "menny");
    mNextWordDictionaryUnderTest.resetSentence();
    assertHasNextWordsForWord(mNextWordDictionaryUnderTest, "hello", "menny");
    assertHasNextWordsForWord(mNextWordDictionaryUnderTest, "menny");

    mNextWordDictionaryUnderTest.close();
  }