diff --git a/src/main/java/de/hsel/spm/baudas/analysis/ShoppingCart.java b/src/main/java/de/hsel/spm/baudas/analysis/ShoppingCart.java
index 7153b1e..3f01c76 100644
--- a/src/main/java/de/hsel/spm/baudas/analysis/ShoppingCart.java
+++ b/src/main/java/de/hsel/spm/baudas/analysis/ShoppingCart.java
@@ -23,10 +23,15 @@ import java.util.Map;
 public class ShoppingCart implements Analysis<Map<List<String>, List<String>>> {
 
     private Instances instances;
+    private Map<List<String>, List<String>> result;
 
     @Override
     public Map<List<String>, List<String>> getResult() {
-        Map<List<String>, List<String>> result = new HashMap<>();
+        if(result != null) {
+            return result;
+        }
+
+        result = new HashMap<>();
 
         Apriori model = new Apriori();
 
diff --git a/src/test/java/de/hsel/spm/baudas/analysis/ShoppingCartTest.java b/src/test/java/de/hsel/spm/baudas/analysis/ShoppingCartTest.java
index e9e161d..fa28aa9 100644
--- a/src/test/java/de/hsel/spm/baudas/analysis/ShoppingCartTest.java
+++ b/src/test/java/de/hsel/spm/baudas/analysis/ShoppingCartTest.java
@@ -4,13 +4,17 @@ import org.junit.jupiter.api.Test;
 
 import java.io.File;
 import java.net.URL;
+import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 /**
  * Test class for shopping-cart analysis.
  *
- * @author Julian Hinxlage
+ * @author Johannes Theiner
  * @version 0.1
  */
 class ShoppingCartTest {
@@ -23,7 +27,10 @@ class ShoppingCartTest {
         ShoppingCart cart = new ShoppingCart(new File(url.getFile()));
         Map<List<String>, List<String>> result = cart.getResult();
 
-        System.out.println(result);
+        assertEquals(Collections.singletonList("Eisenwaren"), result.get(Arrays.asList("Handwerkzeuge", "Schliesstechnik")));
+        assertEquals(Collections.singletonList("Elektromaterial"), result.get(Collections.singletonList("Leuchten")));
+        assertEquals(Collections.singletonList("Eisenwaren"), result.get(Arrays.asList("Schliesstechnik", "Renovierung")));
+        assertEquals(Collections.singletonList("Eisenwaren"), result.get(Arrays.asList("Handwerkzeuge", "Schliesstechnik", "Baustoffe")));
     }
 
     @Test
@@ -34,7 +41,11 @@ class ShoppingCartTest {
         ShoppingCart cart = new ShoppingCart(new File(url.getFile()));
         Map<List<String>, List<String>> result = cart.getResult();
 
-        System.out.println(result);
+        assertEquals(Collections.singletonList("Eisenwaren"), result.get(Arrays.asList("Handwerkzeuge", "Schliesstechnik", "Elektromaterial")));
+        assertEquals(Collections.singletonList("Elektromaterial"), result.get(Arrays.asList("Renovierung", "Leuchten")));
+        assertEquals(Collections.singletonList("Sanitaermaterial"), result.get(Arrays.asList("Fliesen", "Armaturen")));
+        assertEquals(Collections.singletonList("Eisenwaren"), result.get(Arrays.asList("Handwerkzeuge", "Schliesstechnik", "Renovierung")));
+
     }
 
     @Test
@@ -45,7 +56,11 @@ class ShoppingCartTest {
         ShoppingCart cart = new ShoppingCart(new File(url.getFile()));
         Map<List<String>, List<String>> result = cart.getResult();
 
-        System.out.println(result);
+        assertEquals(Collections.singletonList("Eisenwaren"), result.get(Arrays.asList("Handwerkzeuge", "Schliesstechnik", "Elektromaterial")));
+        assertEquals(Collections.singletonList("Sanitaermaterial"), result.get(Arrays.asList("Eisenwaren", "Fliesen", "Armaturen")));
+        assertEquals(Collections.singletonList("Elektromaterial"), result.get(Arrays.asList("Renovierung", "Leuchten")));
+        assertEquals(Collections.singletonList("Eisenwaren"), result.get(Arrays.asList("Handwerkzeuge", "Schliesstechnik", "Baustoffe")));
+
     }
 
 }