pure junit tests

android/java/MapboxGLAndroidSDKTestApp/build.gradle

@@ -95,6 +95,7 @@ dependencies {
     }
 
     // Testing dependencies
+    testCompile 'junit:junit:4.12'
     androidTestCompile 'com.android.support.test:runner:0.4'
     androidTestCompile 'com.android.support.test:rules:0.4'
     androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.1'

android/java/MapboxGLAndroidSDKTestApp/src/test/java/CoordinateSpanTest.java

@@ -0,0 +1,15 @@
+import com.mapbox.mapboxgl.geometry.CoordinateSpan;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertNotNull;
+
+public class CoordinateSpanTest {
+
+    @Test
+    public void testSanity() {
+        CoordinateSpan coordinateSpan = new CoordinateSpan(0.0, 0.0);
+        assertNotNull("coordinateSpan should not be null", coordinateSpan);
+    }
+
+}