[android] - build and test wear module on CI, cleanup gradle file, added make target, added unit test (#7534)

platform/android/MapboxGLAndroidSDKWearTestApp/src/test/java/com/mapbox/weartestapp/utils/OffsettingHelperTest.java

@@ -0,0 +1,28 @@
+package com.mapbox.weartestapp.utils;
+
+import android.view.View;
+
+import org.junit.Test;
+import org.mockito.InjectMocks;
+
+import static junit.framework.Assert.assertEquals;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+public class OffsettingHelperTest {
+
+  private static final double DELTA = 1e-15;
+
+  @InjectMocks
+  View view = mock(View.class);
+
+  @Test
+  public void testAnchorOffset() {
+    float[] offset = new float[2];
+    int viewHeight = 50;
+    when(view.getHeight()).thenReturn(viewHeight);
+    OffsettingHelper offsettingHelper = new OffsettingHelper();
+    offsettingHelper.adjustAnchorOffsetXY(view, offset);
+    assertEquals("Offset of " + viewHeight + " should be divided by 2: ", viewHeight / 2, offset[0], DELTA);
+  }
+}