Added tests for specification pattern

specification/pom.xml

@@ -14,5 +14,10 @@
       <artifactId>junit</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 </project>

specification/src/test/java/com/iluwatar/specification/creature/CreatureTest.java

@@ -0,0 +1,111 @@
+package com.iluwatar.specification.creature;
+
+import com.iluwatar.specification.property.Color;
+import com.iluwatar.specification.property.Movement;
+import com.iluwatar.specification.property.Size;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+
+import java.util.Arrays;
+import java.util.Collection;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+/**
+ * Date: 12/29/15 - 7:47 PM
+ *
+ * @author Jeroen Meulemeester
+ */
+@RunWith(Parameterized.class)
+public class CreatureTest {
+
+  /**
+   * @return The tested {@link Creature} instance and its expected specs
+   */
+  @Parameterized.Parameters
+  public static Collection<Object[]> data() {
+    return Arrays.asList(
+            new Object[]{new Dragon(), "Dragon", Size.LARGE, Movement.FLYING, Color.RED},
+            new Object[]{new Goblin(), "Goblin", Size.SMALL, Movement.WALKING, Color.GREEN},
+            new Object[]{new KillerBee(), "KillerBee", Size.SMALL, Movement.FLYING, Color.LIGHT},
+            new Object[]{new Octopus(), "Octopus", Size.NORMAL, Movement.SWIMMING, Color.DARK},
+            new Object[]{new Shark(), "Shark", Size.NORMAL, Movement.SWIMMING, Color.LIGHT},
+            new Object[]{new Troll(), "Troll", Size.LARGE, Movement.WALKING, Color.DARK}
+    );
+  }
+
+  /**
+   * The tested creature
+   */
+  private final Creature testedCreature;
+
+  /**
+   * The expected name of the tested creature
+   */
+  private final String name;
+
+  /**
+   * The expected size of the tested creature
+   */
+  private final Size size;
+
+  /**
+   * The expected movement type of the tested creature
+   */
+  private final Movement movement;
+
+  /**
+   * The expected color of the tested creature
+   */
+  private final Color color;
+
+  /**
+   * @param testedCreature The tested creature
+   * @param name           The expected name of the creature
+   * @param size           The expected size of the creature
+   * @param movement       The expected movement type of the creature
+   * @param color          The expected color of the creature
+   */
+  public CreatureTest(final Creature testedCreature, final String name, final Size size,
+                      final Movement movement, final Color color) {
+    this.testedCreature = testedCreature;
+    this.name = name;
+    this.size = size;
+    this.movement = movement;
+    this.color = color;
+  }
+
+
+  @Test
+  public void testGetName() throws Exception {
+    assertEquals(this.name, this.testedCreature.getName());
+  }
+
+  @Test
+  public void testGetSize() throws Exception {
+    assertEquals(this.size, this.testedCreature.getSize());
+  }
+
+  @Test
+  public void testGetMovement() throws Exception {
+    assertEquals(this.movement, this.testedCreature.getMovement());
+  }
+
+  @Test
+  public void testGetColor() throws Exception {
+    assertEquals(this.color, this.testedCreature.getColor());
+  }
+
+  @Test
+  public void testToString() throws Exception {
+    final String toString = this.testedCreature.toString();
+    assertNotNull(toString);
+    assertEquals(
+            String.format("%s [size=%s, movement=%s, color=%s]", name, size, movement, color),
+            toString
+    );
+  }
+}

specification/src/test/java/com/iluwatar/specification/selector/ColorSelectorTest.java

@@ -0,0 +1,37 @@
+package com.iluwatar.specification.selector;
+
+import com.iluwatar.specification.creature.Creature;
+import com.iluwatar.specification.property.Color;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+/**
+ * Date: 12/29/15 - 7:35 PM
+ *
+ * @author Jeroen Meulemeester
+ */
+public class ColorSelectorTest {
+
+  /**
+   * Verify if the color selector gives the correct results
+   */
+  @Test
+  public void testColor() {
+    final Creature greenCreature = mock(Creature.class);
+    when(greenCreature.getColor()).thenReturn(Color.GREEN);
+
+    final Creature redCreature = mock(Creature.class);
+    when(redCreature.getColor()).thenReturn(Color.RED);
+
+    final ColorSelector greenSelector = new ColorSelector(Color.GREEN);
+    assertTrue(greenSelector.test(greenCreature));
+    assertFalse(greenSelector.test(redCreature));
+
+  }
+
+}

specification/src/test/java/com/iluwatar/specification/selector/MovementSelectorTest.java

@@ -0,0 +1,38 @@
+package com.iluwatar.specification.selector;
+
+import com.iluwatar.specification.creature.Creature;
+import com.iluwatar.specification.property.Color;
+import com.iluwatar.specification.property.Movement;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+/**
+ * Date: 12/29/15 - 7:37 PM
+ *
+ * @author Jeroen Meulemeester
+ */
+public class MovementSelectorTest {
+
+  /**
+   * Verify if the movement selector gives the correct results
+   */
+  @Test
+  public void testMovement() {
+    final Creature swimmingCreature = mock(Creature.class);
+    when(swimmingCreature.getMovement()).thenReturn(Movement.SWIMMING);
+
+    final Creature flyingCreature = mock(Creature.class);
+    when(flyingCreature.getMovement()).thenReturn(Movement.FLYING);
+
+    final MovementSelector swimmingSelector = new MovementSelector(Movement.SWIMMING);
+    assertTrue(swimmingSelector.test(swimmingCreature));
+    assertFalse(swimmingSelector.test(flyingCreature));
+
+  }
+
+}

specification/src/test/java/com/iluwatar/specification/selector/SizeSelectorTest.java

@@ -0,0 +1,36 @@
+package com.iluwatar.specification.selector;
+
+import com.iluwatar.specification.creature.Creature;
+import com.iluwatar.specification.property.Size;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+/**
+ * Date: 12/29/15 - 7:43 PM
+ *
+ * @author Jeroen Meulemeester
+ */
+public class SizeSelectorTest {
+
+  /**
+   * Verify if the size selector gives the correct results
+   */
+  @Test
+  public void testMovement() {
+    final Creature normalCreature = mock(Creature.class);
+    when(normalCreature.getSize()).thenReturn(Size.NORMAL);
+
+    final Creature smallCreature = mock(Creature.class);
+    when(smallCreature.getSize()).thenReturn(Size.SMALL);
+
+    final SizeSelector normalSelector = new SizeSelector(Size.NORMAL);
+    assertTrue(normalSelector.test(normalCreature));
+    assertFalse(normalSelector.test(smallCreature));
+  }
+
+}