diff --git a/bin/fi/oulu/tol/sqat/GildedRose.class b/bin/fi/oulu/tol/sqat/GildedRose.class
index f244eba..b904cd2 100644
Binary files a/bin/fi/oulu/tol/sqat/GildedRose.class and b/bin/fi/oulu/tol/sqat/GildedRose.class differ
diff --git a/bin/fi/oulu/tol/sqat/Item.class b/bin/fi/oulu/tol/sqat/Item.class
index 478a739..86c608e 100644
Binary files a/bin/fi/oulu/tol/sqat/Item.class and b/bin/fi/oulu/tol/sqat/Item.class differ
diff --git a/bin/fi/oulu/tol/sqat/tests/GildedRoseTest.class b/bin/fi/oulu/tol/sqat/tests/GildedRoseTest.class
index e44e81c..177dcd8 100644
Binary files a/bin/fi/oulu/tol/sqat/tests/GildedRoseTest.class and b/bin/fi/oulu/tol/sqat/tests/GildedRoseTest.class differ
diff --git a/src/fi/oulu/tol/sqat/tests/GildedRoseTest.java b/src/fi/oulu/tol/sqat/tests/GildedRoseTest.java
index 7aceb2e..859a382 100644
--- a/src/fi/oulu/tol/sqat/tests/GildedRoseTest.java
+++ b/src/fi/oulu/tol/sqat/tests/GildedRoseTest.java
@@ -34,9 +34,199 @@ public void testUpdateEndOfDay_AgedBrie_Quality_10_11() {
 		Item itemBrie = items.get(0);
 		assertEquals(11, itemBrie.getQuality());
 	}
+	
+	@Test
+	public void testUpdateEndOfDay_BackStagePassesQualityIncreasesBy2() {
+		// Arrange
+		GildedRose store = new GildedRose();
+		store.addItem(new Item("Backstage passes to a TAFKAL80ETC concert", 15, 20) );
+		
+		// Act
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();//10
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		
+		// Assert
+		List<Item> items = store.getItems();
+		Item itemPass = items.get(0);
+		assertEquals(29, itemPass.getQuality());
+	}
+	
+	@Test
+	public void testUpdateEndOfDay_BackStagePassesQualityIncreasesBy3() {
+		// Arrange
+		GildedRose store = new GildedRose();
+		store.addItem(new Item("Backstage passes to a TAFKAL80ETC concert", 15, 20) );
+		
+		// Act
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();//10
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();//5
+		store.updateEndOfDay();
+		
+		// Assert
+		List<Item> items = store.getItems();
+		Item itemPass = items.get(0);
+		assertEquals(38, itemPass.getQuality());
+	}
+	
+	@Test
+	public void testUpdateEndOfDay_BackStagePassesDropTo0() {
+		// Arrange
+		GildedRose store = new GildedRose();
+		store.addItem(new Item("Backstage passes to a TAFKAL80ETC concert", 15, 20) );
+		
+		// Act
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();//10
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();//5
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();//0
+		store.updateEndOfDay();
+		
+		// Assert
+		List<Item> items = store.getItems();
+		Item itemPass = items.get(0);
+		assertEquals(0, itemPass.getQuality());
+	}
     
 	@Test
 	public void testUpdateEndOfDay() {
-		fail("Test not implemented");
+		//Arrange
+		GildedRose store = new GildedRose();
+		store.addItem(new Item("Conjured Mana Cake", 3, 6));
+		
+		//Act
+		store.updateEndOfDay();
+		
+		//Assert
+		List<Item> items = store.getItems();
+		Item itemCake = items.get(0);
+		assertEquals(5, itemCake.getQuality());
+		assertEquals(2, itemCake.getSellIn());
+	}
+	
+	@Test
+	public void testUpdateEndOfDay_SulfurasQualityStaysAt80() {
+		//Arrange
+		GildedRose store = new GildedRose();
+		store.addItem(new Item("Sulfuras, Hand of Ragnaros", 0, 80));
+		
+		//Act
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		
+		//Assert
+		List<Item> items = store.getItems();
+		Item itemSulfuras = items.get(0);
+		assertEquals(80, itemSulfuras.getQuality());
+	}
+	
+	@Test
+	public void testUpdateEndOfDay_AgedBrieQualityNotOver50() {
+		//Arrange
+		GildedRose store = new GildedRose();
+		store.addItem(new Item("Aged Brie", 2, 50));
+		
+		//Act
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		
+		//Assert
+		List<Item> items = store.getItems();
+		Item itemAgedBrie = items.get(0);
+		assertEquals(50, itemAgedBrie.getQuality());	
+	}
+	
+	@Test
+	public void testUpdateEndOfDay_5DexterityVestQualityDecreases() {
+		//Arrange
+		GildedRose store = new GildedRose();
+		store.addItem(new Item("+5 Dexterity Vest", 10, 20));
+		
+		//Act
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		
+		//Assert
+		List<Item> items = store.getItems();
+		Item item5DexterityVest = items.get(0);
+		assertEquals(17, item5DexterityVest.getQuality());
+	}
+	
+	@Test
+	public void testUpdateEndOfDay_5DexterityVestSellInDecreases() {
+		//Arrange
+		GildedRose store = new GildedRose();
+		store.addItem(new Item("+5 Dexterity Vest", 10, 20));
+		
+		//Act
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		
+		//Assert
+		List<Item> items = store.getItems();
+		Item item5DexterityVest = items.get(0);
+		assertEquals(7, item5DexterityVest.getSellIn());
+	}
+	
+	@Test
+	public void testUpdateEndOfDay_5DexterityVestQualityDecreasesTwiceAsFast() {
+		//Arrange
+		GildedRose store = new GildedRose();
+		store.addItem(new Item("+5 Dexterity Vest", 0, 10));
+		
+		//Act
+		store.updateEndOfDay();
+		
+		//Assert
+		List<Item> items = store.getItems();
+		Item item5DexterityVest = items.get(0);
+		assertEquals(8, item5DexterityVest.getQuality());
+	}
+	
+	@Test
+	public void testUpdateEndOfDay_ConjuredManaCakeQualityCantBeNegative() {
+		//Arrange
+		GildedRose store = new GildedRose();
+		store.addItem(new Item("Conjured Mana Cake", 3, 6));
+		
+		//Act
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		store.updateEndOfDay();
+		
+		//Assert
+		List<Item> items = store.getItems();
+		Item itemConjuredManaCake = items.get(0);
+		assertEquals(0, itemConjuredManaCake.getQuality());
 	}
 }