#1284 Implement Version Number pattern

version-number/src/test/java/com/iluwatar/versionnumber/AppTest.java

@@ -0,0 +1,46 @@
+/*
+ * The MIT License
+ * Copyright © 2014-2019 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package com.iluwatar.versionnumber;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+
+/**
+ * Application test
+ */
+class AppTest {
+
+  /**
+   * Issue: Add at least one assertion to this test case.
+   *
+   * Solution: Inserted assertion to check whether the execution of the main method in {@link App#main(String[])}
+   * throws an exception.
+   */
+
+  @Test
+  void shouldExecuteApplicationWithoutException() {
+    assertDoesNotThrow(() -> App.main(new String[]{}));
+  }
+}

version-number/src/test/java/com/iluwatar/versionnumber/BookRepositoryTest.java

@@ -0,0 +1,72 @@
+/*
+ * The MIT License
+ * Copyright © 2014-2019 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package com.iluwatar.versionnumber;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+/**
+ * Tests for {@link BookRepository}
+ */
+class BookRepositoryTest {
+  @Test
+  void testBookRepository() throws BookDuplicateException, BookNotFoundException, VersionMismatchException {
+    final long bookId = 1;
+
+    BookRepository bookRepository = new BookRepository();
+    Book book = new Book();
+    book.setId(bookId);
+    bookRepository.add(book);
+
+    assertEquals(0, book.getVersion());
+
+    final Book aliceBook = bookRepository.get(bookId);
+    final Book bobBook = bookRepository.get(bookId);
+
+    assertEquals(aliceBook.getTitle(), bobBook.getTitle());
+    assertEquals(aliceBook.getAuthor(), bobBook.getAuthor());
+    assertEquals(aliceBook.getVersion(), bobBook.getVersion());
+
+    aliceBook.setTitle("Kama Sutra");
+    bookRepository.update(aliceBook);
+
+    assertEquals(1, aliceBook.getVersion());
+    assertEquals(0, bobBook.getVersion());
+    assertEquals(aliceBook.getVersion(), bookRepository.get(bookId).getVersion());
+    assertEquals(aliceBook.getTitle(), bookRepository.get(bookId).getTitle());
+    assertNotEquals(aliceBook.getTitle(), bobBook.getTitle());
+
+    bobBook.setAuthor("Vatsyayana Mallanaga");
+    try {
+      bookRepository.update(bobBook);
+    } catch (VersionMismatchException e) {
+      assertEquals(0, bobBook.getVersion());
+      assertEquals(1, bookRepository.get(bookId).getVersion());
+      assertEquals(aliceBook.getVersion(), bookRepository.get(bookId).getVersion());
+      assertEquals("", bobBook.getTitle());
+      assertNotEquals(aliceBook.getAuthor(), bobBook.getAuthor());
+    }
+  }
+}