add displayname annotations to simple-cipher

Author: bibekparajuli123

exercises/practice/simple-cipher/src/test/java/SimpleCipherTest.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;
@@ -18,6 +19,7 @@ public void setup() {
      * problem with shift ciphers, some characters will always output the key verbatim.
      */
     @Test
+    @DisplayName("Can encode")
     public void randomKeyCipherCanEncode() {
         String plainText = "aaaaaaaaaa";
         String cipherText = randomKeyCipher.getKey().substring(0, 10);
@@ -26,6 +28,7 @@ public void randomKeyCipherCanEncode() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Can decode")
     public void randomKeyCipherCanDecode() {
         String cipherText = "aaaaaaaaaa";
         assertThat(randomKeyCipher.decode(randomKeyCipher.getKey().substring(0, 10)))
@@ -34,19 +37,23 @@ public void randomKeyCipherCanDecode() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Is reversible. I.e., if you apply decode in a encoded result, \n" +
+            "you must see the same plaintext encode parameter as a result of the decode method")
     public void randomKeyCipherIsReversible() {
         String plainText = "abcdefghij";
         assertThat(randomKeyCipher.decode(randomKeyCipher.encode(plainText))).isEqualTo(plainText);
     }
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Key is made only of lowercase letters")
     public void randomKeyCipherKeyIsLowercaseLetters() {
         assertThat(randomKeyCipher.getKey()).matches("^[a-z]+$");
     }
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Can encode")
     public void substitutionCipherCanEncode() {
         String plainText = "aaaaaaaaaa";
         String cipherText = "abcdefghij";
@@ -55,6 +62,7 @@ public void substitutionCipherCanEncode() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Can decode")
     public void substitutionCipherCanDecode() {
         String plainText = "abcdefghij";
         String cipherText = "aaaaaaaaaa";
@@ -63,13 +71,16 @@ public void substitutionCipherCanDecode() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Is reversible. I.e., if you apply decode in a encoded result, \n" +
+            "you must see the same plaintext encode parameter as a result of the decode method")
     public void substitutionCipherIsReversibleGivenKey() {
         String plainText = "abcdefghij";
         assertThat(substitutionCipher.decode(substitutionCipher.encode(plainText))).isEqualTo(plainText);
     }
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Can double shift encode")
     public void substitutionCipherCanDoubleShiftEncode() {
         String plainText = "iamapandabear";
         String cipherText = "qayaeaagaciai";
@@ -78,6 +89,7 @@ public void substitutionCipherCanDoubleShiftEncode() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Can wrap on encode")
     public void substitutionCipherCanWrapEncode() {
         String plainText = "zzzzzzzzzz";
         String cipherText = "zabcdefghi";
@@ -86,6 +98,7 @@ public void substitutionCipherCanWrapEncode() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Can wrap on decode")
     public void substitutionCipherCanWrapDecode() {
         String plainText = "zabcdefghi";
         String cipherText = "zzzzzzzzzz";
@@ -94,6 +107,7 @@ public void substitutionCipherCanWrapDecode() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Can decode messages longer than the key")
     public void substitutionCipherMessageLongerThanKey() {
         String plainText = "iamapandabear";
         String key = "abc";