<NME> GeocoderTest.java
<BEF> ADDFILE
<MSG> Add tests for geocoders

Part of #4522.

<DFF> @@ -0,0 +1,43 @@
+package cgeo.geocaching.location;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import cgeo.CGeoTestCase;
+import cgeo.geocaching.CgeoApplication;
+
+import org.apache.commons.lang3.StringUtils;
+import org.assertj.core.data.Offset;
+
+import rx.Observable;
+
+import android.location.Address;
+import android.test.suitebuilder.annotation.Suppress;
+
+public class GeocoderTest extends CGeoTestCase {
+
+    private static final String TEST_ADDRESS = "46 rue Barrault, Paris, France";
+    private static final double TEST_LATITUDE = 48.82677;
+    private static final double TEST_LONGITUDE = 2.34644;
+    private static final Offset<Double> TEST_OFFSET = Offset.offset(0.00010);
+
+    @Suppress // Some emulators don't have access to Google Android geocoder
+    public void testAndroidGeocoder() {
+        testGeocoder(new AndroidGeocoder(CgeoApplication.getInstance()).getFromLocationName(TEST_ADDRESS), "Android");
+    }
+
+    public void testGCGeocoder() {
+        testGeocoder(GCGeocoder.getFromLocationName(TEST_ADDRESS), "GC");
+    }
+
+    public void testMapQuestGeocoder() {
+        testGeocoder(MapQuestGeocoder.getFromLocationName(TEST_ADDRESS), "MapQuest");
+    }
+
+    public static void testGeocoder(final Observable<Address> addressObservable, final String geocoder) {
+        final Address address = addressObservable.toBlocking().first();
+        assertThat(address.getLatitude()).as("latitude for " + geocoder + " geocoder").isCloseTo(TEST_LATITUDE, TEST_OFFSET);
+        assertThat(address.getLongitude()).as("longitude for " + geocoder + " geocoder").isCloseTo(TEST_LONGITUDE, TEST_OFFSET);
+        assertThat(StringUtils.lowerCase(address.getAddressLine(0))).as("street address for " + geocoder + " geocoder").startsWith("46 rue barrault");
+    }
+
+}

Add tests for geocoders