On progress tests, doesn't compile (just want to switch computer)

app/src/androidTest/java/ch/epfl/sweng/studyup/ItemsTest/ShopActivityAndBuyItemActivityTest.java

@@ -0,0 +1,30 @@
+package ch.epfl.sweng.studyup.ItemsTest;
+
+import android.support.test.rule.ActivityTestRule;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import ch.epfl.sweng.studyup.items.ShopActivity;
+
+
+
+@RunWith(AndroidJUnit4.class)
+public class ShopActivityAndBuyItemActivityTest {
+    private ShopActivity shopActivity;
+
+    private final ActivityTestRule<ShopActivity> mActivityRule =
+            new ActivityTestRule<>(ShopActivity.class);
+
+    @Before
+    public void init() {
+        shopActivity = mActivityRule.getActivity();
+    }
+
+    @Test
+    public void onPlusButtonIncrementsCount() {
+
+    }
+}

app/src/main/java/ch/epfl/sweng/studyup/items/BuyItemActivity.java

@@ -42,12 +42,12 @@ protected void onCreate(Bundle savedInstanceState) {
     }
 
 
-    public void onPlusButton(View view) {
+    public void onPlusButton() {
         counter += 1;
         updateTextViewCounter();
     }
 
-    public void onMinusButton(View view) {
+    public void onMinusButton() {
         if (counter > 1) {
             counter -= 1;
             updateTextViewCounter();

app/src/main/java/ch/epfl/sweng/studyup/items/ShopActivity.java

@@ -25,7 +25,7 @@ protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_shop);
 
-        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
+        Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
         getSupportActionBar().setTitle(null);
 

app/src/test/java/ch/epfl/sweng/studyup/ListItemAdapterTest.java

@@ -5,18 +5,37 @@
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+
 import ch.epfl.sweng.studyup.items.Items;
 import ch.epfl.sweng.studyup.utils.ListItemAdapter;
 
+import static org.junit.Assert.assertEquals;
+
 @RunWith(JUnit4.class)
 public class ListItemAdapterTest {
- /*   ListItemAdapter listItemAdapter;
+   ListItemAdapter listItemAdapter;
+   ArrayList<Items> items;
 
     @Before
     public void init() {
-        Items[] items = {Items.XP_POTION}
-        listItemAdapter = new ListItemAdapter(null, Items.XP_POTION, false);
+        items = new ArrayList<>(Arrays.asList(Items.XP_POTION, Items.COIN_SACK, Items.XP_POTION));
+        listItemAdapter = new ListItemAdapter(null, items, false);
+    }
+
+    @Test
+    public void getCountReturnsCorrectNumber() {
+        assertEquals(items.size(), listItemAdapter.getCount());
     }
+
     @Test
-    public void*/
+    public void getItemReturnsCorrectObject() {
+        assertEquals(Items.COIN_SACK, listItemAdapter.getItem(1));
+    }
+
+    @Test
+    public void getItemIdReturnsCorrectId() {
+        assertEquals(Items.XP_POTION.ordinal(), listItemAdapter.getItemId(2));
+    }
 }