unit test for isHeader(int pos)

Signed-off-by: alex <alex.plutta@googlemail.com>
Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

src/test/java/com/owncloud/android/ui/adapter/ActivityListAdapterTest.java

@@ -0,0 +1,53 @@
+package com.owncloud.android.ui.adapter;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.MockitoAnnotations;
+import org.mockito.internal.util.reflection.FieldSetter;
+
+import java.util.ArrayList;
+
+public final class ActivityListAdapterTest {
+
+
+    @Mock
+    private ActivityListAdapter activityListAdapter;
+
+    @Before
+    public void setUp() throws NoSuchFieldException {
+        MockitoAnnotations.initMocks(this);
+        MockitoAnnotations.initMocks(activityListAdapter);
+        FieldSetter.setField(activityListAdapter, activityListAdapter.getClass().getDeclaredField("values"), new ArrayList<>());
+    }
+
+    @Test
+    public void isHeader__ObjectIsHeader_ReturnTrue() {
+        Object header = "Hello";
+        Object activity = Mockito.mock(com.owncloud.android.lib.resources.activities.model.Activity.class);
+
+        Mockito.when(activityListAdapter.isHeader(0)).thenCallRealMethod();
+        Mockito.when(activityListAdapter.getItemViewType(0)).thenCallRealMethod();
+
+        activityListAdapter.values.add(header);
+        activityListAdapter.values.add(activity);
+
+        final boolean result = activityListAdapter.isHeader(0);
+        Assert.assertTrue(result);
+    }
+
+    @Test
+    public void isHeader__ObjectIsActivity_ReturnFalse() {
+        Object header = "Hello";
+        Object activity = Mockito.mock(com.owncloud.android.lib.resources.activities.model.Activity.class);
+
+        Mockito.when(activityListAdapter.isHeader(1)).thenCallRealMethod();
+        Mockito.when(activityListAdapter.getItemViewType(1)).thenCallRealMethod();
+
+        activityListAdapter.values.add(header);
+        activityListAdapter.values.add(activity);
+        Assert.assertFalse(activityListAdapter.isHeader(1));
+    }
+}