iluwatar#1842 Added unit tests

Author: hkattt-anu

currying/src/test/java/com/iluwatar/currying/AppTest.java

@@ -0,0 +1,36 @@
+/*
+ * This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
+ *
+ * The MIT License
+ * Copyright © 2014-2022 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.currying;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import org.junit.jupiter.api.Test;
+
+public class AppTest {
+  @Test
+  void executesWithoutExceptions() {
+    assertDoesNotThrow(() -> App.main(new String[]{}));
+  }
+}

currying/src/test/java/com/iluwatar/currying/BookCurryingTest.java

@@ -0,0 +1,76 @@
+/*
+ * This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
+ *
+ * The MIT License
+ * Copyright © 2014-2022 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.currying;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.time.LocalDate;
+
+/**
+ * Unit tests for the Book class
+ */
+public class BookCurryingTest {
+  private static Book expectedBook;
+
+  @BeforeClass
+  public static void initialiseBook() {
+    expectedBook = new Book(Genre.FANTASY,
+        "Dave",
+        "Into the Night",
+        LocalDate.of(2002, 4, 7));
+  }
+
+  /**
+   * Tests that the expected book can be created via curried functions
+   */
+  @Test
+  public void createsExpectedBook() {
+    Book curriedBook = Book.builder()
+        .withGenre(Genre.FANTASY)
+        .withAuthor("Dave")
+        .withTitle("Into the Night")
+        .withPublicationDate(LocalDate.of(2002, 4, 7));
+
+    assertEquals(expectedBook, curriedBook);
+  }
+
+  /**
+   * Tests that an intermediate curried function can be used to create the expected book
+   */
+  @Test
+  public void functionCreatesExpectedBook() {
+    Book.AddTitle daveFantasyBookFunc = Book.builder()
+      .withGenre(Genre.FANTASY)
+      .withAuthor("Dave");
+
+    Book curriedBook = daveFantasyBookFunc.withTitle("Into the Night")
+      .withPublicationDate(LocalDate.of(2002, 4, 7));
+
+    assertEquals(expectedBook, curriedBook);
+  }
+}