Add proper unit tests for builder pattern #293

builder/src/test/java/com/iluwatar/builder/HeroTest.java

@@ -0,0 +1,56 @@
+package com.iluwatar.builder;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+/**
+ * Date: 12/6/15 - 11:01 PM
+ *
+ * @author Jeroen Meulemeester
+ */
+public class HeroTest {
+
+  /**
+   * Test if we get the expected exception when trying to create a hero without a profession
+   */
+  @Test(expected = IllegalArgumentException.class)
+  public void testMissingProfession() throws Exception {
+    new Hero.HeroBuilder(null, "Sir without a job");
+  }
+
+  /**
+   * Test if we get the expected exception when trying to create a hero without a name
+   */
+  @Test(expected = IllegalArgumentException.class)
+  public void testMissingName() throws Exception {
+    new Hero.HeroBuilder(Profession.THIEF, null);
+  }
+
+  /**
+   * Test if the hero build by the builder has the correct attributes, as requested
+   */
+  @Test
+  public void testBuildHero() throws Exception {
+    final String heroName = "Sir Lancelot";
+
+    final Hero hero = new Hero.HeroBuilder(Profession.WARRIOR, heroName)
+        .withArmor(Armor.CHAIN_MAIL)
+        .withWeapon(Weapon.SWORD)
+        .withHairType(HairType.LONG_CURLY)
+        .withHairColor(HairColor.BLOND)
+        .build();
+
+    assertNotNull(hero);
+    assertNotNull(hero.toString());
+    assertEquals(Profession.WARRIOR, hero.getProfession());
+    assertEquals(heroName, hero.getName());
+    assertEquals(Armor.CHAIN_MAIL, hero.getArmor());
+    assertEquals(Weapon.SWORD, hero.getWeapon());
+    assertEquals(HairType.LONG_CURLY, hero.getHairType());
+    assertEquals(HairColor.BLOND, hero.getHairColor());
+
+  }
+
+}