added tests to configTest class to improve coverage

client/src/test/java/client/scenes/ConfigTest.java

@@ -1,6 +1,7 @@
 package client.scenes;
 
 import client.utils.Config;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
 import java.util.ArrayList;
@@ -8,27 +9,30 @@ import java.util.ArrayList;
 import static org.junit.jupiter.api.Assertions.*;
 
 public class ConfigTest {
+    private Config config;
 
     private static final long FAV_LIST_ID_1 = 1234L;
     private static final long FAV_LIST_ID_2 = 1235L;
 
+    @BeforeEach
+    void setUp(){
+        config = new Config();
+        config.setLanguage("nl");
+        config.setServerUrl("http://localhost:8081");
+    }
+
 
     @Test
     public void configDefaultValueTest(){
-        Config config = new Config();
 
-        assertEquals("en", config.getLanguage());
-        assertEquals("http://localhost:8080", config.getServerUrl());
+        assertEquals("nl", config.getLanguage());
+        assertEquals("http://localhost:8081", config.getServerUrl());
         assertTrue(config.getFavourites().isEmpty());
         assertTrue(config.getShoppingList().isEmpty());
     }
 
     @Test
     public void configGetterTest(){
-        Config config = new Config();
-        config.setLanguage("nl");
-        config.setServerUrl("http://localhost:8081");
-
         ArrayList<String> x = new ArrayList<>();
         x.add("Lava Cake");
         x.add("Brownie");
@@ -42,4 +46,27 @@ public class ConfigTest {
         config.setShoppingList(x);
         assertEquals(config.getShoppingList(), x);
     }
+
+    @Test
+    public void isFavTest(){
+        assertFalse(config.isFavourite(FAV_LIST_ID_1)); //not yet fav
+
+        ArrayList<Long> y = new ArrayList<>();
+        y.add(FAV_LIST_ID_1);
+        config.setFavourites(y);
+
+        assertTrue(config.isFavourite(FAV_LIST_ID_1));
+    }
+
+    @Test
+    public void removeFavTest(){
+        ArrayList<Long> y = new ArrayList<>();
+        y.add(FAV_LIST_ID_1);
+        config.setFavourites(y);
+
+        assertTrue(config.isFavourite(FAV_LIST_ID_1));
+
+        config.removeFavourite(FAV_LIST_ID_1);
+        assertFalse(config.isFavourite(FAV_LIST_ID_1));
+    }
 }