Added first Mockito test

AktienTraum · AktienTraum · commit ed1d544a7aab · 2016-02-05T11:28:50.000+01:00
diff --git a/src/main/java/com/codecentric/sample/store/service/ItemService.java b/src/main/java/com/codecentric/sample/store/service/ItemService.java
@@ -0,0 +1,28 @@
+package com.codecentric.sample.store.service;
+
+import com.codecentric.sample.store.model.Item;
+import com.codecentric.sample.store.repository.ItemRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class ItemService {
+
+    @Autowired
+    private ItemRepository itemRepository;
+
+
+    public int getAveragePriceForAllItems() {
+
+        List<Item> items = itemRepository.readAllItems();
+
+        int sumOfPrices = 0;
+        for (Item item : items) {
+            sumOfPrices += item.getPriceInCents();
+        }
+
+        return sumOfPrices / items.size();
+    }
+}
diff --git a/src/test/java/com/codecentric/sample/store/service/ItemServiceTest.java b/src/test/java/com/codecentric/sample/store/service/ItemServiceTest.java
@@ -0,0 +1,52 @@
+package com.codecentric.sample.store.service;
+
+import com.codecentric.sample.store.model.Item;
+import com.codecentric.sample.store.repository.ItemRepository;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.MockitoAnnotations;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertThat;
+import static org.mockito.Mockito.atLeast;
+import static org.mockito.Mockito.when;
+
+public class ItemServiceTest {
+
+
+    @Mock
+    private ItemRepository itemRepository;
+
+    @InjectMocks
+    private ItemService itemService;
+
+
+    @Before
+    public void setUp() throws Exception {
+        MockitoAnnotations.initMocks(this);
+    }
+
+
+    @Test
+    public void calculationOfAveragePriceForAllItems() {
+
+        List<Item> mockedItemList = new ArrayList<Item>();
+        mockedItemList.add(new Item("it1", "Item 1", "This is item 1", 2000, true));
+
+        when(itemRepository.readAllItems()).thenReturn(mockedItemList);
+        int averagePriceForAllItems = itemService.getAveragePriceForAllItems();
+
+        Mockito.verify(itemRepository, atLeast(1)).readAllItems();
+
+        assertThat(averagePriceForAllItems, is(2000));
+    }
+
+
+
+}
