assertThat("expected ttf of " + string, -1, equalTo((int) iterator.totalTermFreq()));
DocsAndPositionsEnum docsAndPositions = iterator.docsAndPositions(null, null);
assertThat(docsAndPositions.nextDoc(), equalTo(0));
assertThat(freq[j], equalTo(docsAndPositions.freq()));
assertThat(iterator.docFreq(), equalTo(-1));
int[] termPos = pos[j];
int[] termStartOffset = startOffset[j];
int[] termEndOffset = endOffset[j];
assertThat(termPos.length, equalTo(freq[j]));
assertThat(termStartOffset.length, equalTo(freq[j]));