Finished with adding @DisplayName to alphametics, anagram, armstrong-numbers, atbash-cipher

exercises/practice/alphametics/src/test/java/AlphameticsTest.java

@@ -1,4 +1,5 @@
 import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
 import static java.util.Map.entry;
@@ -8,6 +9,7 @@
 public class AlphameticsTest {
 
     @Test
+    @DisplayName("puzzle with three letters")
     public void testThreeLetters() throws UnsolvablePuzzleException {
         assertThat(new Alphametics("I + BB == ILL").solve())
                 .containsOnly(
@@ -18,6 +20,7 @@ public void testThreeLetters() throws UnsolvablePuzzleException {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("solution must have unique value for each letter")
     public void testUniqueValue() {
         Alphametics alphametics = new Alphametics("A == B");
 
@@ -27,6 +30,7 @@ public void testUniqueValue() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("leading zero solution is invalid")
     public void testLeadingZero() {
         Alphametics alphametics = new Alphametics("ACA + DD == BD");
 
@@ -36,6 +40,7 @@ public void testLeadingZero() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("puzzle with two digits final carry")
     public void testTwoDigitsFinalCarry() throws UnsolvablePuzzleException {
         assertThat(new Alphametics("A + A + A + A + A + A + A + A + A + A + A + B == BCC").solve())
                 .containsOnly(
@@ -46,6 +51,7 @@ public void testTwoDigitsFinalCarry() throws UnsolvablePuzzleException {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("puzzle with four letters")
     public void testFourLetters() throws UnsolvablePuzzleException {
         assertThat(new Alphametics("AS + A == MOM").solve())
                 .containsOnly(
@@ -57,6 +63,7 @@ public void testFourLetters() throws UnsolvablePuzzleException {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("puzzle with six letters")
     public void testSixLetters() throws UnsolvablePuzzleException {
         assertThat(new Alphametics("NO + NO + TOO == LATE").solve())
                 .containsOnly(
@@ -70,6 +77,7 @@ public void testSixLetters() throws UnsolvablePuzzleException {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("puzzle with seven letters")
     public void testSevenLetters() throws UnsolvablePuzzleException {
         assertThat(new Alphametics("HE + SEES + THE == LIGHT").solve())
                 .containsOnly(
@@ -84,6 +92,7 @@ public void testSevenLetters() throws UnsolvablePuzzleException {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("puzzle with eight letters")
     public void testEightLetters() throws UnsolvablePuzzleException {
         assertThat(new Alphametics("SEND + MORE == MONEY").solve())
                 .containsOnly(
@@ -99,6 +108,7 @@ public void testEightLetters() throws UnsolvablePuzzleException {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("puzzle with ten letters")
     public void testTenLetters() throws UnsolvablePuzzleException {
         assertThat(new Alphametics("AND + A + STRONG + OFFENSE + AS + A + GOOD == DEFENSE").solve())
                 .containsOnly(
@@ -116,7 +126,8 @@ public void testTenLetters() throws UnsolvablePuzzleException {
 
     @Disabled("Remove to run test")
     @Test
-    public void testTenLetters41Addends() throws UnsolvablePuzzleException {
+    @DisplayName("puzzle with ten letters and 199 addends")
+    public void testTenLetters199Addends() throws UnsolvablePuzzleException {
         assertThat(new Alphametics("THIS + A + FIRE + THEREFORE + FOR + ALL + HISTORIES + I + TELL + A + " +
                 "TALE + THAT + FALSIFIES + ITS + TITLE + TIS + A + LIE + THE + TALE + OF + THE + LAST + FIRE + " +
                 "HORSES + LATE + AFTER + THE + FIRST + FATHERS + FORESEE + THE + HORRORS + THE + LAST + FREE + " +

exercises/practice/anagram/src/test/java/AnagramTest.java

@@ -1,4 +1,5 @@
 import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
 import java.util.Arrays;
@@ -9,6 +10,7 @@
 public class AnagramTest {
 
     @Test
+    @DisplayName("no matches")
     public void testNoMatches() {
         Anagram detector = new Anagram("diaper");
 
@@ -20,6 +22,7 @@ public void testNoMatches() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("detects two anagrams")
     public void testDetectsTwoAnagrams() {
         Anagram detector = new Anagram("solemn");
 
@@ -29,6 +32,7 @@ public void testDetectsTwoAnagrams() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("does not detect anagram subsets")
     public void testEliminateAnagramSubsets() {
         Anagram detector = new Anagram("good");
 
@@ -37,6 +41,7 @@ public void testEliminateAnagramSubsets() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("detects anagram")
     public void testDetectLongerAnagram() {
         Anagram detector = new Anagram("listen");
 
@@ -48,6 +53,7 @@ public void testDetectLongerAnagram() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("detects three anagrams")
     public void testDetectMultipleAnagramsForLongerWord() {
         Anagram detector = new Anagram("allergy");
         assertThat(
@@ -64,6 +70,7 @@ public void testDetectMultipleAnagramsForLongerWord() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("detects multiple anagrams with different case")
     public void testDetectsMultipleAnagramsWithDifferentCase() {
         Anagram detector = new Anagram("nose");
 
@@ -73,6 +80,7 @@ public void testDetectsMultipleAnagramsWithDifferentCase() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("does not detect non-anagrams with identical checksum")
     public void testEliminateAnagramsWithSameChecksum() {
         Anagram detector = new Anagram("mass");
 
@@ -82,6 +90,7 @@ public void testEliminateAnagramsWithSameChecksum() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("detects anagrams case-insensitively")
     public void testCaseInsensitiveWhenBothAnagramAndSubjectStartWithUpperCaseLetter() {
         Anagram detector = new Anagram("Orchestra");
 
@@ -93,6 +102,7 @@ public void testCaseInsensitiveWhenBothAnagramAndSubjectStartWithUpperCaseLetter
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("detects anagrams using case-insensitive subject")
     public void testCaseInsensitiveWhenSubjectStartsWithUpperCaseLetter() {
         Anagram detector = new Anagram("Orchestra");
 
@@ -104,6 +114,7 @@ public void testCaseInsensitiveWhenSubjectStartsWithUpperCaseLetter() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("detects anagrams using case-insensitive possible matches")
     public void testCaseInsensitiveWhenAnagramStartsWithUpperCaseLetter() {
         Anagram detector = new Anagram("orchestra");
 
@@ -115,6 +126,7 @@ public void testCaseInsensitiveWhenAnagramStartsWithUpperCaseLetter() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("does not detect an anagram if the original word is repeated")
     public void testIdenticalWordRepeatedIsNotAnagram() {
         Anagram detector = new Anagram("go");
 
@@ -124,6 +136,7 @@ public void testIdenticalWordRepeatedIsNotAnagram() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("anagrams must use all letters exactly once")
     public void testAnagramMustUseAllLettersExactlyOnce() {
         Anagram detector = new Anagram("tapper");
 
@@ -133,6 +146,7 @@ public void testAnagramMustUseAllLettersExactlyOnce() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("words are not anagrams of themselves")
     public void testWordsAreNotAnagramsOfThemselvesCaseInsensitive() {
         Anagram detector = new Anagram("BANANA");
 
@@ -142,6 +156,7 @@ public void testWordsAreNotAnagramsOfThemselvesCaseInsensitive() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("words are not anagrams of themselves even if letter case is partially different")
     public void testWordsAreNotAnagramsOfThemselvesEvenIfLetterCaseIsPartiallyDifferent() {
         Anagram detector = new Anagram("BANANA");
 
@@ -151,6 +166,7 @@ public void testWordsAreNotAnagramsOfThemselvesEvenIfLetterCaseIsPartiallyDiffer
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("words are not anagrams of themselves even if letter case is completely different")
     public void testWordsAreNotAnagramsOfThemselvesEvenIfLetterCaseIsCompletelyDifferent() {
         Anagram detector = new Anagram("BANANA");
 
@@ -160,6 +176,7 @@ public void testWordsAreNotAnagramsOfThemselvesEvenIfLetterCaseIsCompletelyDiffe
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("words other than themselves can be anagrams")
     public void testWordsOtherThanThemselvesCanBeAnagrams() {
         Anagram detector = new Anagram("LISTEN");
 
@@ -169,6 +186,7 @@ public void testWordsOtherThanThemselvesCanBeAnagrams() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("handles case of greek letters")
     public void testHandlesCaseOfGreekLetters() {
         Anagram detector = new Anagram("ΑΒΓ");
 
@@ -178,6 +196,7 @@ public void testHandlesCaseOfGreekLetters() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("different characters may have the same bytes")
     public void testDifferentCharactersWithSameBytes() {
         Anagram detector = new Anagram("a⬂");
 

exercises/practice/armstrong-numbers/src/test/java/ArmstrongNumbersTest.java

@@ -1,5 +1,6 @@
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -14,62 +15,71 @@ public void setup() {
     }
 
     @Test
+    @DisplayName("Zero is an Armstrong number")
     public void zeroIsArmstrongNumber() {
         assertThat(armstrongNumbers.isArmstrongNumber(0))
                 .isTrue();
     }
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Single-digit numbers are Armstrong numbers")
     public void singleDigitsAreArmstrongNumbers() {
         assertThat(armstrongNumbers.isArmstrongNumber(5))
                 .isTrue();
     }
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("There are no two-digit Armstrong numbers")
     public void noTwoDigitArmstrongNumbers() {
         assertThat(armstrongNumbers.isArmstrongNumber(10))
                 .isFalse();
     }
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Three-digit number that is an Armstrong number")
     public void threeDigitNumberIsArmstrongNumber() {
         assertThat(armstrongNumbers.isArmstrongNumber(153))
                 .isTrue();
     }
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Three-digit number that is not an Armstrong number")
     public void threeDigitNumberIsNotArmstrongNumber() {
         assertThat(armstrongNumbers.isArmstrongNumber(100))
                 .isFalse();
     }
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Four-digit number that is an Armstrong number")
     public void fourDigitNumberIsArmstrongNumber() {
         assertThat(armstrongNumbers.isArmstrongNumber(9474))
                 .isTrue();
     }
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Four-digit number that is not an Armstrong number")
     public void fourDigitNumberIsNotArmstrongNumber() {
         assertThat(armstrongNumbers.isArmstrongNumber(9475))
                 .isFalse();
     }
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Seven-digit number that is an Armstrong number")
     public void sevenDigitNumberIsArmstrongNumber() {
         assertThat(armstrongNumbers.isArmstrongNumber(9926315))
                 .isTrue();
     }
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Seven-digit number that is not an Armstrong number")
     public void sevenDigitNumberIsNotArmstrongNumber() {
         assertThat(armstrongNumbers.isArmstrongNumber(9926314))
                 .isFalse();