added credential menu exit

src/main/java/Vault.java

@@ -12,6 +12,7 @@ public class Vault implements VaultInterface {
     public boolean hasSpecialChars;
     public boolean hasNumbers;
     public String userName;
+    public boolean credentialM;
     InputStream inputS = System.in;
     OutputStream outputS = System.out;
 

src/test/java/VaultTest.java

@@ -35,6 +35,13 @@ public class VaultTest {
         assertTrue(outputStream.toString().startsWith("Configure"));
     }
 
+    @Test
+    void exitConfigureMenu(){
+        vlt.inputS = new ByteArrayInputStream("e".getBytes(StandardCharsets.UTF_8));
+        vlt.credentialMenu();
+        assertFalse(vlt.credentialM);
+    }
+
     @Test
     void addCredentialTest() { vlt.addCredential();}