import static org.hamcrest.CoreMatchers.*;
import static org.junit.matchers.JUnitMatchers.*;
import static org.junit.Assert.*;
import java.util.*;
import org.junit.*;
public class AnagramTest {
@Test
public void testNoMatches() {
Anagram detector = new Anagram("diaper");
assertTrue(detector.match(Arrays.asList("hello", "world", "zombies", "pants")).isEmpty());
}
@Test
public void testSimpleAnagram() {
Anagram detector = new Anagram("ant");
List anagram = detector.match(Arrays.asList("tan", "stand", "at"));
assertThat(anagram, hasItems("tan"));
}
@Test
public void testDetectMultipleAnagrams() {
Anagram detector = new Anagram("master");
List anagrams = detector.match(Arrays.asList("stream", "pigeon", "maters"));
assertThat(anagrams, hasItems("maters", "stream"));
}
@Test
public void testDoesNotConfuseDifferentDuplicates() {
Anagram detector = new Anagram("galea");
List anagrams = detector.match(Arrays.asList("eagle"));
assertTrue(anagrams.isEmpty());
}
@Test
public void testIdenticalWordIsNotAnagram() {
Anagram detector = new Anagram("corn");
List anagrams = detector.match(Arrays.asList("corn", "dark", "Corn", "rank", "CORN", "cron", "park"));
assertThat(anagrams, hasItems("cron"));
}
@Test
public void testEliminateAnagramsWithSameChecksum() {
Anagram detector = new Anagram("mass");
assertTrue(detector.match(Arrays.asList("last")).isEmpty());
}
@Test
public void testEliminateAnagramSubsets() {
Anagram detector = new Anagram("good");
assertTrue(detector.match(Arrays.asList("dog", "goody")).isEmpty());
}
@Test
public void testDetectAnagrams() {
Anagram detector = new Anagram("listen");
List anagrams = detector.match(Arrays.asList("enlists", "google", "inlets", "banana"));
assertThat(anagrams, hasItems("inlets"));
}
@Test
public void testMultipleAnagrams() {
Anagram detector = new Anagram("allergy");
List anagrams = detector.match(Arrays.asList("gallery", "ballerina", "regally", "clergy", "largely", "leading"));
assertThat(anagrams, hasItems("gallery", "largely", "regally"));
}
@Test
public void testAnagramsAreCaseInsensitive() {
Anagram detector = new Anagram("Orchestra");
List anagrams = detector.match(Arrays.asList("cashregister", "Carthorse", "radishes"));
assertThat(anagrams, hasItems("Carthorse"));
}
}