[android] throw configuration exception when accessing Mapbox services with an invalid token

platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/maps/MapboxTest.java

@@ -5,10 +5,18 @@ import android.support.test.runner.AndroidJUnit4;
 
 import com.mapbox.mapboxsdk.AppCenter;
 import com.mapbox.mapboxsdk.Mapbox;
+import com.mapbox.mapboxsdk.exceptions.MapboxConfigurationException;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.ExpectedException;
 import org.junit.runner.RunWith;
 
 import static junit.framework.Assert.assertFalse;
+import static junit.framework.Assert.assertNotNull;
+import static junit.framework.Assert.assertNull;
 import static junit.framework.Assert.assertSame;
 import static junit.framework.Assert.assertTrue;
 
@@ -18,6 +26,16 @@ public class MapboxTest extends AppCenter {
   private static final String ACCESS_TOKEN = "pk.0000000001";
   private static final String ACCESS_TOKEN_2 = "pk.0000000002";
 
+  @Rule
+  public ExpectedException expectedException = ExpectedException.none();
+
+  private String realToken;
+
+  @Before
+  public void setup() {
+    realToken = Mapbox.getAccessToken();
+  }
+
   @Test
   @UiThreadTest
   public void testConnected() {
@@ -37,11 +55,57 @@ public class MapboxTest extends AppCenter {
   @Test
   @UiThreadTest
   public void setAccessToken() {
-    String realToken =  Mapbox.getAccessToken();
     Mapbox.setAccessToken(ACCESS_TOKEN);
     assertSame(ACCESS_TOKEN, Mapbox.getAccessToken());
     Mapbox.setAccessToken(ACCESS_TOKEN_2);
     assertSame(ACCESS_TOKEN_2, Mapbox.getAccessToken());
+  }
+
+  @Test
+  @UiThreadTest
+  public void setInvalidAccessToken() {
+    final String invalidAccessToken = "xyz";
+    expectedException.expect(MapboxConfigurationException.class);
+    expectedException.expectMessage(
+      "A valid access token parameter is required when using a Mapbox service."
+        + "\nPlease see https://www.mapbox.com/help/create-api-access-token/ to learn how to create one."
+        + "\nMore information in this guide https://www.mapbox.com/help/first-steps-android-sdk/#access-tokens."
+        + "Currently provided token is: " + invalidAccessToken
+    );
+
+    Mapbox.setAccessToken(invalidAccessToken);
+    assertNull(Mapbox.getTelemetry());
+    Mapbox.getSkuToken();
+  }
+
+  @Test
+  @UiThreadTest
+  public void setNullAccessToken() {
+    expectedException.expect(MapboxConfigurationException.class);
+    expectedException.expectMessage(
+      "A valid access token parameter is required when using a Mapbox service."
+        + "\nPlease see https://www.mapbox.com/help/create-api-access-token/ to learn how to create one."
+        + "\nMore information in this guide https://www.mapbox.com/help/first-steps-android-sdk/#access-tokens."
+        + "Currently provided token is: " + null
+    );
+
+    Mapbox.setAccessToken(null);
+    assertNull(Mapbox.getTelemetry());
+    Mapbox.getSkuToken();
+  }
+
+  @Test
+  @UiThreadTest
+  public void setValidAccessToken() {
+    final String invalidAccessToken = "xyz";
+    Mapbox.setAccessToken(invalidAccessToken);
+    Mapbox.setAccessToken(ACCESS_TOKEN);
+    assertNotNull(Mapbox.getTelemetry());
+    assertNotNull(Mapbox.getSkuToken());
+  }
+
+  @After
+  public void tearDown() {
     Mapbox.setAccessToken(realToken);
   }
 }