Completed with adding @DisplayName to bank-account, binary-search-tree, binary-search, bob, book-store

exercises/practice/bank-account/src/test/java/BankAccountTest.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 java.util.Random;
@@ -15,6 +16,7 @@ public void setUp() {
     }
 
     @Test
+    @DisplayName("Newly opened account has zero balance")
     public void newlyOpenedAccountHasEmptyBalance() throws BankAccountActionInvalidException {
         bankAccount.open();
 
@@ -23,6 +25,7 @@ public void newlyOpenedAccountHasEmptyBalance() throws BankAccountActionInvalidE
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Single deposit")
     public void singleDeposit() throws BankAccountActionInvalidException {
         bankAccount.open();
         bankAccount.deposit(100);
@@ -32,6 +35,7 @@ public void singleDeposit() throws BankAccountActionInvalidException {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Multiple deposits")
     public void multipleDeposits() throws BankAccountActionInvalidException {
         bankAccount.open();
         bankAccount.deposit(100);
@@ -42,6 +46,7 @@ public void multipleDeposits() throws BankAccountActionInvalidException {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Withdraw once")
     public void withdrawOnce() throws BankAccountActionInvalidException {
         bankAccount.open();
         bankAccount.deposit(100);
@@ -52,6 +57,7 @@ public void withdrawOnce() throws BankAccountActionInvalidException {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Withdraw twice")
     public void withdrawTwice() throws BankAccountActionInvalidException {
         bankAccount.open();
         bankAccount.deposit(100);
@@ -63,6 +69,7 @@ public void withdrawTwice() throws BankAccountActionInvalidException {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Can do multiple operations sequentially")
     public void canDoMultipleOperationsSequentially() throws BankAccountActionInvalidException {
         bankAccount.open();
         bankAccount.deposit(100);
@@ -76,6 +83,7 @@ public void canDoMultipleOperationsSequentially() throws BankAccountActionInvali
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Cannot check balance of closed account")
     public void cannotCheckBalanceOfClosedAccount() throws BankAccountActionInvalidException {
         bankAccount.open();
         bankAccount.close();
@@ -87,6 +95,7 @@ public void cannotCheckBalanceOfClosedAccount() throws BankAccountActionInvalidE
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Cannot deposit into closed account")
     public void cannotDepositIntoClosedAccount() throws BankAccountActionInvalidException {
         bankAccount.open();
         bankAccount.close();
@@ -98,6 +107,7 @@ public void cannotDepositIntoClosedAccount() throws BankAccountActionInvalidExce
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Cannot deposit into unopened account")
     public void cannotDepositIntoUnopenedAccount() {
         assertThatExceptionOfType(BankAccountActionInvalidException.class)
                 .isThrownBy(() -> bankAccount.deposit(50))
@@ -106,6 +116,7 @@ public void cannotDepositIntoUnopenedAccount() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Cannot withdraw from closed account")
     public void cannotWithdrawFromClosedAccount() throws BankAccountActionInvalidException {
         bankAccount.open();
         bankAccount.close();
@@ -117,6 +128,7 @@ public void cannotWithdrawFromClosedAccount() throws BankAccountActionInvalidExc
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Cannot close an account that was not opened")
     public void cannotCloseAnAccountThatWasNotOpened() {
         assertThatExceptionOfType(BankAccountActionInvalidException.class)
                 .isThrownBy(bankAccount::close)
@@ -125,6 +137,7 @@ public void cannotCloseAnAccountThatWasNotOpened() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Cannot open an already opened account")
     public void cannotOpenAnAlreadyOpenedAccount() throws BankAccountActionInvalidException {
         bankAccount.open();
 
@@ -135,6 +148,7 @@ public void cannotOpenAnAlreadyOpenedAccount() throws BankAccountActionInvalidEx
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Reopened account does not retain balance")
     public void reopenedAccountDoesNotRetainBalance() throws BankAccountActionInvalidException {
         bankAccount.open();
         bankAccount.deposit(50);
@@ -146,7 +160,8 @@ public void reopenedAccountDoesNotRetainBalance() throws BankAccountActionInvali
 
     @Disabled("Remove to run test")
     @Test
-    public void cannotWithdrawMoreThanWasDeposited() throws BankAccountActionInvalidException {
+    @DisplayName("Cannot withdraw more than deposited")
+    public void cannotWithdrawMoreThanDeposited() throws BankAccountActionInvalidException {
         bankAccount.open();
         bankAccount.deposit(25);
 
@@ -157,6 +172,7 @@ public void cannotWithdrawMoreThanWasDeposited() throws BankAccountActionInvalid
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Cannot withdraw negative")
     public void cannotWithdrawNegativeAmount() throws BankAccountActionInvalidException {
         bankAccount.open();
         bankAccount.deposit(100);
@@ -168,6 +184,7 @@ public void cannotWithdrawNegativeAmount() throws BankAccountActionInvalidExcept
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Cannot deposit negative")
     public void cannotDepositNegativeAmount() throws BankAccountActionInvalidException {
         bankAccount.open();
 
@@ -178,6 +195,7 @@ public void cannotDepositNegativeAmount() throws BankAccountActionInvalidExcepti
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("Can handle concurrent transactions")
     public void canHandleConcurrentTransactions() throws BankAccountActionInvalidException, InterruptedException {
         bankAccount.open();
         bankAccount.deposit(1000);

exercises/practice/binary-search-tree/src/test/java/BinarySearchTreeTest.java

@@ -4,11 +4,13 @@
 
 import static org.assertj.core.api.Assertions.assertThat;
 import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
 public class BinarySearchTreeTest {
 
     @Test
+    @DisplayName("data is retained")
     public void dataIsRetained() {
         BinarySearchTree<Integer> binarySearchTree = new BinarySearchTree<>();
 
@@ -24,6 +26,7 @@ public void dataIsRetained() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("insert data at proper node")
     public void insertsLess() {
         BinarySearchTree<Character> binarySearchTree = new BinarySearchTree<>();
 
@@ -45,6 +48,7 @@ public void insertsLess() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("same number at left node")
     public void insertsSame() {
         BinarySearchTree<String> binarySearchTree = new BinarySearchTree<>();
         String expectedRoot = "4";
@@ -65,6 +69,7 @@ public void insertsSame() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("greater number at right node")
     public void insertsRight() {
         BinarySearchTree<Integer> binarySearchTree = new BinarySearchTree<>();
         int expectedRoot = 4;
@@ -85,6 +90,7 @@ public void insertsRight() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("can create complex tree")
     public void createsComplexTree() {
         BinarySearchTree<Character> binarySearchTree = new BinarySearchTree<>();
         List<Character> expected = List.of('4', '2', '6', '1', '3', '5', '7');
@@ -97,6 +103,7 @@ public void createsComplexTree() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("can sort single number")
     public void sortsSingleElement() {
         BinarySearchTree<String> binarySearchTree = new BinarySearchTree<>();
         List<String> expected = Collections.singletonList("2");
@@ -108,6 +115,7 @@ public void sortsSingleElement() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("can sort if second number is smaller than first")
     public void sortsCollectionOfTwoIfSecondInsertedIsSmallerThanFirst() {
         BinarySearchTree<Integer> binarySearchTree = new BinarySearchTree<>();
         List<Integer> expected = List.of(1, 2);
@@ -120,6 +128,7 @@ public void sortsCollectionOfTwoIfSecondInsertedIsSmallerThanFirst() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("can sort if second number is same as first")
     public void sortsCollectionOfTwoIfSecondNumberisSameAsFirst() {
         BinarySearchTree<Character> binarySearchTree = new BinarySearchTree<>();
         List<Character> expected = List.of('2', '2');
@@ -132,6 +141,7 @@ public void sortsCollectionOfTwoIfSecondNumberisSameAsFirst() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("can sort if second number is greater than first")
     public void sortsCollectionOfTwoIfSecondInsertedIsBiggerThanFirst() {
         BinarySearchTree<Character> binarySearchTree = new BinarySearchTree<>();
         List<Character> expected = List.of('2', '3');
@@ -144,6 +154,7 @@ public void sortsCollectionOfTwoIfSecondInsertedIsBiggerThanFirst() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("can sort complex tree")
     public void iteratesOverComplexTree() {
         BinarySearchTree<String> binarySearchTree = new BinarySearchTree<>();
         List<String> expected = List.of("1", "2", "3", "5", "6", "7");

exercises/practice/binary-search/src/test/java/BinarySearchTest.java

@@ -2,6 +2,7 @@
 import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
 
 import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
 import java.util.Collections;
@@ -10,6 +11,7 @@
 public class BinarySearchTest {
 
     @Test
+    @DisplayName("finds a value in an array with one element")
     public void findsAValueInAnArrayWithOneElement() throws ValueNotFoundException {
         List<Integer> listOfUnitLength = Collections.singletonList(6);
 
@@ -20,6 +22,7 @@ public void findsAValueInAnArrayWithOneElement() throws ValueNotFoundException {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("finds a value in the middle of an array")
     public void findsAValueInTheMiddleOfAnArray() throws ValueNotFoundException {
         List<Integer> sortedList = List.of(1, 3, 4, 6, 8, 9, 11);
 
@@ -30,6 +33,7 @@ public void findsAValueInTheMiddleOfAnArray() throws ValueNotFoundException {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("finds a value at the beginning of an array")
     public void findsAValueAtTheBeginningOfAnArray() throws ValueNotFoundException {
         List<Integer> sortedList = List.of(1, 3, 4, 6, 8, 9, 11);
 
@@ -40,6 +44,7 @@ public void findsAValueAtTheBeginningOfAnArray() throws ValueNotFoundException {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("finds a value at the end of an array")
     public void findsAValueAtTheEndOfAnArray() throws ValueNotFoundException {
         List<Integer> sortedList = List.of(1, 3, 4, 6, 8, 9, 11);
 
@@ -50,6 +55,7 @@ public void findsAValueAtTheEndOfAnArray() throws ValueNotFoundException {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("finds a value in an array of odd length")
     public void findsAValueInAnArrayOfOddLength() throws ValueNotFoundException {
         List<Integer> sortedListOfOddLength = List.of(1, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 634);
 
@@ -60,6 +66,7 @@ public void findsAValueInAnArrayOfOddLength() throws ValueNotFoundException {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("finds a value in an array of even length")
     public void findsAValueInAnArrayOfEvenLength() throws ValueNotFoundException {
         List<Integer> sortedListOfEvenLength = List.of(1, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377);
 
@@ -70,6 +77,7 @@ public void findsAValueInAnArrayOfEvenLength() throws ValueNotFoundException {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("identifies that a value is not included in the array")
     public void identifiesThatAValueIsNotFoundInTheArray() {
         List<Integer> sortedList = List.of(1, 3, 4, 6, 8, 9, 11);
 
@@ -82,6 +90,7 @@ public void identifiesThatAValueIsNotFoundInTheArray() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("a value smaller than the array's smallest value is not found")
     public void aValueSmallerThanTheArraysSmallestValueIsNotFound() {
         List<Integer> sortedList = List.of(1, 3, 4, 6, 8, 9, 11);
 
@@ -94,6 +103,7 @@ public void aValueSmallerThanTheArraysSmallestValueIsNotFound() {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("a value larger than the array's largest value is not found")
     public void aValueLargerThanTheArraysLargestValueIsNotFound() throws ValueNotFoundException {
         List<Integer> sortedList = List.of(1, 3, 4, 6, 8, 9, 11);
 
@@ -106,6 +116,7 @@ public void aValueLargerThanTheArraysLargestValueIsNotFound() throws ValueNotFou
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("nothing is found in an empty array")
     public void nothingIsFoundInAnEmptyArray() throws ValueNotFoundException {
         List<Integer> emptyList = Collections.emptyList();
 
@@ -118,6 +129,7 @@ public void nothingIsFoundInAnEmptyArray() throws ValueNotFoundException {
 
     @Disabled("Remove to run test")
     @Test
+    @DisplayName("nothing is found when the left and right bounds cross")
     public void nothingIsFoundWhenTheLeftAndRightBoundCross() throws ValueNotFoundException {
         List<Integer> sortedList = List.of(1, 2);