add test for utils/DimenUtils

app/src/test/java/org/kiwix/kiwixmobile/utils/DimenUtilsTest.java

@@ -0,0 +1,76 @@
+/*
+ * Kiwix Android
+ * Copyright (C) 2018  Kiwix <android.kiwix.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.kiwix.kiwixmobile.utils;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.os.Build;
+import android.util.Log;
+import java.lang.reflect.Field;
+import java.lang.reflect.Modifier;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnitRunner;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.Mockito.when;
+
+@RunWith(MockitoJUnitRunner.class)
+public class DimenUtilsTest {
+
+  @Mock Context context;
+  @Mock Resources resources;
+
+  //Test the Translucent bar height returned
+  @Test
+  public void checkTranslucentBarheight(){
+    when(context.getResources()).thenReturn(resources);
+    when(resources.getIdentifier("status_bar_height", "dimen", "android")).thenReturn(10);
+    when(resources.getDimensionPixelSize(anyInt())).thenReturn(100);
+
+    //Case 1 :build SDK version < Lollipop
+    //(status bar height is 100px but it's not translucent)
+    try{
+      SetSDKVersion(Build.VERSION.class.getField("SDK_INT"), 20);
+    }catch (Exception e){
+      Log.d("DimenUtilsTest", "Unable to set Build SDK Version");
+    }
+    assertEquals("",0,DimenUtils.getTranslucentStatusBarHeight(context));
+
+    //Case 2 :build SDK version >= Lollipop
+    //(status bar height is 100px and it's translucent)
+    try{
+      SetSDKVersion(Build.VERSION.class.getField("SDK_INT"), 21);
+      assertEquals("",100,DimenUtils.getTranslucentStatusBarHeight(context));
+    }catch (Exception e){
+      Log.d("DimenUtilsTest", "Unable to set Build SDK Version");
+    }
+  }
+
+  //Sets the Build SDK version
+  private static void SetSDKVersion(Field field, Object newValue) throws Exception {
+    field.setAccessible(true);
+    Field modifiersField = Field.class.getDeclaredField("modifiers");
+    modifiersField.setAccessible(true);
+    modifiersField.setInt(field, field.getModifiers() & ~Modifier.FINAL);
+    field.set(null, newValue);
+  }
+}

app/src/test/java/org/kiwix/kiwixmobile/utils/NetworkUtilsTest.java

@@ -158,7 +158,7 @@ public class NetworkUtilsTest {
   }
 
   //Sets the Build SDK version
-  public static void SetSDKVersion(Field field, Object newValue) throws Exception {
+  private static void SetSDKVersion(Field field, Object newValue) throws Exception {
     field.setAccessible(true);
     Field modifiersField = Field.class.getDeclaredField("modifiers");
     modifiersField.setAccessible(true);