@Test
public void ignoresSuffixIfUnknown() {
when(suffix.isKnown()).thenReturn(false);
RegexInfoTransformation transformation = new SuffixToMatchTransformation(extractor);
RegexInfo result = transformation.transform(info);
assertThat(result.getMatch(), equalTo(match));
assertStringSetsUnchanged(result);
}
@Test
public void appendsExactInfoToMatchExpression() {
when(extractor.ngrams(exact)).thenReturn(trigrams);
when(match.and(trigrams)).thenReturn(newMatch);
when(exact.isKnown()).thenReturn(true);
RegexInfoTransformation transformation = new ExactToMatchTransformation(extractor);
RegexInfo result = transformation.transform(info);
verify(match).and(trigrams);
assertThat(result.getMatch(), equalTo(newMatch));
assertStringSetsUnchanged(result);
}
private void assertStringSetsUnchanged(RegexInfo result) {
assertThat(result.getPrefix(), equalTo(prefix));
assertThat(result.getSuffix(), equalTo(suffix));
assertThat(result.getExact(), equalTo(exact));
}