diff --git a/Java/src/test/java/com/gildedrose/GildedRoseTest.java b/Java/src/test/java/com/gildedrose/GildedRoseTest.java
index 7c5fc0a2..1474d442 100644
--- a/Java/src/test/java/com/gildedrose/GildedRoseTest.java
+++ b/Java/src/test/java/com/gildedrose/GildedRoseTest.java
@@ -3,6 +3,7 @@ package com.gildedrose;
 import org.junit.jupiter.api.Test;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
 
 class GildedRoseTest {
 
@@ -14,4 +15,16 @@ class GildedRoseTest {
         assertEquals("foo", app.items[0].name);
     }
 
+    @Test
+    void standardItem_quality_decreases_sellin_decreases_each_day() {
+        int startingSellin = 10;
+        int startingQuality = 14;
+        final Item standardItem = new Item("spam", startingSellin, startingQuality);
+        GildedRose app = new GildedRose(new Item[]{standardItem});
+
+        app.updateQuality();
+
+        assertThat(standardItem.sellIn).isEqualTo(startingSellin - 1);
+        assertThat(standardItem.quality).isEqualTo(startingQuality - 1);
+    }
 }