1 files changed, 232 insertions, 1469 deletions

diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/testapp/style/LineLayerTest.java b/platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/testapp/style/LineLayerTest.java
index 8123d24be8..40cf0f2927 100644
--- a/platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/testapp/style/LineLayerTest.java
+++ b/platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/testapp/style/LineLayerTest.java
@@ -3,31 +3,18 @@
 package com.mapbox.mapboxsdk.testapp.style;
 
 import android.graphics.Color;
-import android.support.test.espresso.UiController;
 import android.support.test.runner.AndroidJUnit4;
 
 import timber.log.Timber;
 
-import com.mapbox.mapboxsdk.maps.MapboxMap;
-import com.mapbox.mapboxsdk.style.functions.CompositeFunction;
-import com.mapbox.mapboxsdk.style.functions.CameraFunction;
-import com.mapbox.mapboxsdk.style.functions.SourceFunction;
-import com.mapbox.mapboxsdk.style.functions.stops.CategoricalStops;
-import com.mapbox.mapboxsdk.style.functions.stops.ExponentialStops;
-import com.mapbox.mapboxsdk.style.functions.stops.IdentityStops;
-import com.mapbox.mapboxsdk.style.functions.stops.IntervalStops;
-import com.mapbox.mapboxsdk.style.functions.stops.Stop;
-import com.mapbox.mapboxsdk.style.functions.stops.Stops;
+import com.mapbox.mapboxsdk.style.expressions.Expression;
 import com.mapbox.mapboxsdk.style.layers.LineLayer;
-import com.mapbox.mapboxsdk.testapp.action.MapboxMapAction;
 import com.mapbox.mapboxsdk.testapp.activity.BaseActivityTest;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
-import static com.mapbox.mapboxsdk.style.functions.Function.*;
-import static com.mapbox.mapboxsdk.style.functions.stops.Stop.stop;
-import static com.mapbox.mapboxsdk.style.functions.stops.Stops.*;
+import static com.mapbox.mapboxsdk.style.expressions.Expression.*;
 import static com.mapbox.mapboxsdk.testapp.action.MapboxMapAction.invoke;
 import static org.junit.Assert.*;
 import static com.mapbox.mapboxsdk.style.layers.Property.*;
@@ -51,17 +38,14 @@ public class LineLayerTest extends BaseActivityTest {
 
   private void setupLayer() {
     Timber.i("Retrieving layer");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        if ((layer = mapboxMap.getLayerAs("my-layer")) == null) {
-          Timber.i("Adding layer");
-          layer = new LineLayer("my-layer", "composite");
-          layer.setSourceLayer("composite");
-          mapboxMap.addLayer(layer);
-          // Layer reference is now stale, get new reference
-          layer = mapboxMap.getLayerAs("my-layer");
-        }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      if ((layer = mapboxMap.getLayerAs("my-layer")) == null) {
+        Timber.i("Adding layer");
+        layer = new LineLayer("my-layer", "composite");
+        layer.setSourceLayer("composite");
+        mapboxMap.addLayer(layer);
+        // Layer reference is now stale, get new reference
+        layer = mapboxMap.getLayerAs("my-layer");
       }
     });
   }
@@ -71,18 +55,15 @@ public class LineLayerTest extends BaseActivityTest {
     validateTestSetup();
     setupLayer();
     Timber.i("Visibility");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-        // Get initial
-        assertEquals(layer.getVisibility().getValue(), VISIBLE);
+      // Get initial
+      assertEquals(layer.getVisibility().getValue(), VISIBLE);
 
-        // Set
-        layer.setProperties(visibility(NONE));
-        assertEquals(layer.getVisibility().getValue(), NONE);
-      }
+      // Set
+      layer.setProperties(visibility(NONE));
+      assertEquals(layer.getVisibility().getValue(), NONE);
     });
   }
 
@@ -91,67 +72,50 @@ public class LineLayerTest extends BaseActivityTest {
     validateTestSetup();
     setupLayer();
     Timber.i("SourceLayer");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Get initial
-        assertEquals(layer.getSourceLayer(), "composite");
-
-        // Set
-        final String sourceLayer = "test";
-        layer.setSourceLayer(sourceLayer);
-        assertEquals(layer.getSourceLayer(), sourceLayer);
-      }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
+
+      // Get initial
+      assertEquals(layer.getSourceLayer(), "composite");
+
+      // Set
+      final String sourceLayer = "test";
+      layer.setSourceLayer(sourceLayer);
+      assertEquals(layer.getSourceLayer(), sourceLayer);
     });
   }
 
   @Test
-  public void testLineCapAsConstant() {
+  public void testFilter() {
     validateTestSetup();
     setupLayer();
-    Timber.i("line-cap");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        layer.setProperties(lineCap(LINE_CAP_BUTT));
-        assertEquals((String) layer.getLineCap().getValue(), (String) LINE_CAP_BUTT);
-      }
+    Timber.i("Filter");
+    invoke(mapboxMap, (uiController, mapboxMap1) -> {
+      assertNotNull(layer);
+
+      // Get initial
+      assertEquals(layer.getFilter(), null);
+
+      // Set
+      Expression filter = eq(get("undefined"), literal(1.0));
+      layer.setFilter(filter);
+      assertEquals(layer.getFilter().toString(), filter.toString());
     });
   }
 
+
+
   @Test
-  public void testLineCapAsCameraFunction() {
+  public void testLineCapAsConstant() {
     validateTestSetup();
     setupLayer();
     Timber.i("line-cap");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineCap(
-            zoom(
-              interval(
-                stop(2, lineCap(LINE_CAP_BUTT))
-              )
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineCap());
-        assertNotNull(layer.getLineCap().getFunction());
-        assertEquals(CameraFunction.class, layer.getLineCap().getFunction().getClass());
-        assertEquals(IntervalStops.class, layer.getLineCap().getFunction().getStops().getClass());
-        assertEquals(1, ((IntervalStops) layer.getLineCap().getFunction().getStops()).size());
-      }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
+
+      // Set and Get
+      layer.setProperties(lineCap(LINE_CAP_BUTT));
+      assertEquals((String) layer.getLineCap().getValue(), (String) LINE_CAP_BUTT);
     });
   }
 
@@ -160,152 +124,42 @@ public class LineLayerTest extends BaseActivityTest {
     validateTestSetup();
     setupLayer();
     Timber.i("line-join");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        layer.setProperties(lineJoin(LINE_JOIN_BEVEL));
-        assertEquals((String) layer.getLineJoin().getValue(), (String) LINE_JOIN_BEVEL);
-      }
-    });
-  }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineJoinAsCameraFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-join");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineJoin(
-            zoom(
-              interval(
-                stop(2, lineJoin(LINE_JOIN_BEVEL))
-              )
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineJoin());
-        assertNotNull(layer.getLineJoin().getFunction());
-        assertEquals(CameraFunction.class, layer.getLineJoin().getFunction().getClass());
-        assertEquals(IntervalStops.class, layer.getLineJoin().getFunction().getStops().getClass());
-        assertEquals(1, ((IntervalStops) layer.getLineJoin().getFunction().getStops()).size());
-      }
+      // Set and Get
+      layer.setProperties(lineJoin(LINE_JOIN_BEVEL));
+      assertEquals((String) layer.getLineJoin().getValue(), (String) LINE_JOIN_BEVEL);
     });
   }
 
   @Test
-  public void testLineJoinAsIdentitySourceFunction() {
+  public void testLineJoinAsExpression() {
     validateTestSetup();
     setupLayer();
-    Timber.i("line-join");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineJoin(property("FeaturePropertyA", Stops.<String>identity()))
-        );
-
-        // Verify
-        assertNotNull(layer.getLineJoin());
-        assertNotNull(layer.getLineJoin().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineJoin().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineJoin().getFunction()).getProperty());
-        assertEquals(IdentityStops.class, layer.getLineJoin().getFunction().getStops().getClass());
-      }
-    });
-  }
+    Timber.i("line-join-expression");
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineJoinAsIntervalSourceFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-join");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineJoin(
-            property(
-              "FeaturePropertyA",
-              interval(
-                stop(1, lineJoin(LINE_JOIN_BEVEL))
-              )
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineJoin());
-        assertNotNull(layer.getLineJoin().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineJoin().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineJoin().getFunction()).getProperty());
-        assertEquals(IntervalStops.class, layer.getLineJoin().getFunction().getStops().getClass());
-      }
+      // Set and Get
+      Expression expression = string(Expression.get("undefined"));
+      layer.setProperties(lineJoin(expression));
+      assertEquals(layer.getLineJoin().getExpression(), expression);
     });
   }
 
+
   @Test
   public void testLineMiterLimitAsConstant() {
     validateTestSetup();
     setupLayer();
     Timber.i("line-miter-limit");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        layer.setProperties(lineMiterLimit(0.3f));
-        assertEquals((Float) layer.getLineMiterLimit().getValue(), (Float) 0.3f);
-      }
-    });
-  }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineMiterLimitAsCameraFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-miter-limit");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineMiterLimit(
-            zoom(
-              exponential(
-                stop(2, lineMiterLimit(0.3f))
-              ).withBase(0.5f)
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineMiterLimit());
-        assertNotNull(layer.getLineMiterLimit().getFunction());
-        assertEquals(CameraFunction.class, layer.getLineMiterLimit().getFunction().getClass());
-        assertEquals(ExponentialStops.class, layer.getLineMiterLimit().getFunction().getStops().getClass());
-        assertEquals(0.5f, ((ExponentialStops) layer.getLineMiterLimit().getFunction().getStops()).getBase(), 0.001);
-        assertEquals(1, ((ExponentialStops) layer.getLineMiterLimit().getFunction().getStops()).size());
-      }
+      // Set and Get
+      layer.setProperties(lineMiterLimit(0.3f));
+      assertEquals((Float) layer.getLineMiterLimit().getValue(), (Float) 0.3f);
     });
   }
 
@@ -314,47 +168,12 @@ public class LineLayerTest extends BaseActivityTest {
     validateTestSetup();
     setupLayer();
     Timber.i("line-round-limit");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        layer.setProperties(lineRoundLimit(0.3f));
-        assertEquals((Float) layer.getLineRoundLimit().getValue(), (Float) 0.3f);
-      }
-    });
-  }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineRoundLimitAsCameraFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-round-limit");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineRoundLimit(
-            zoom(
-              exponential(
-                stop(2, lineRoundLimit(0.3f))
-              ).withBase(0.5f)
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineRoundLimit());
-        assertNotNull(layer.getLineRoundLimit().getFunction());
-        assertEquals(CameraFunction.class, layer.getLineRoundLimit().getFunction().getClass());
-        assertEquals(ExponentialStops.class, layer.getLineRoundLimit().getFunction().getStops().getClass());
-        assertEquals(0.5f, ((ExponentialStops) layer.getLineRoundLimit().getFunction().getStops()).getBase(), 0.001);
-        assertEquals(1, ((ExponentialStops) layer.getLineRoundLimit().getFunction().getStops()).size());
-      }
+      // Set and Get
+      layer.setProperties(lineRoundLimit(0.3f));
+      assertEquals((Float) layer.getLineRoundLimit().getValue(), (Float) 0.3f);
     });
   }
 
@@ -363,216 +182,58 @@ public class LineLayerTest extends BaseActivityTest {
     validateTestSetup();
     setupLayer();
     Timber.i("line-opacityTransitionOptions");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        TransitionOptions options = new TransitionOptions(300, 100);
-        layer.setLineOpacityTransition(options);
-        assertEquals(layer.getLineOpacityTransition(), options);
-      }
-    });
-  }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineOpacityAsConstant() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-opacity");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        layer.setProperties(lineOpacity(0.3f));
-        assertEquals((Float) layer.getLineOpacity().getValue(), (Float) 0.3f);
-      }
+      // Set and Get
+      TransitionOptions options = new TransitionOptions(300, 100);
+      layer.setLineOpacityTransition(options);
+      assertEquals(layer.getLineOpacityTransition(), options);
     });
   }
 
   @Test
-  public void testLineOpacityAsCameraFunction() {
+  public void testLineOpacityAsConstant() {
     validateTestSetup();
     setupLayer();
     Timber.i("line-opacity");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineOpacity(
-            zoom(
-              exponential(
-                stop(2, lineOpacity(0.3f))
-              ).withBase(0.5f)
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineOpacity());
-        assertNotNull(layer.getLineOpacity().getFunction());
-        assertEquals(CameraFunction.class, layer.getLineOpacity().getFunction().getClass());
-        assertEquals(ExponentialStops.class, layer.getLineOpacity().getFunction().getStops().getClass());
-        assertEquals(0.5f, ((ExponentialStops) layer.getLineOpacity().getFunction().getStops()).getBase(), 0.001);
-        assertEquals(1, ((ExponentialStops) layer.getLineOpacity().getFunction().getStops()).size());
-      }
-    });
-  }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineOpacityAsIdentitySourceFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-opacity");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineOpacity(property("FeaturePropertyA", Stops.<Float>identity()))
-        );
-
-        // Verify
-        assertNotNull(layer.getLineOpacity());
-        assertNotNull(layer.getLineOpacity().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineOpacity().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineOpacity().getFunction()).getProperty());
-        assertEquals(IdentityStops.class, layer.getLineOpacity().getFunction().getStops().getClass());
-      }
+      // Set and Get
+      layer.setProperties(lineOpacity(0.3f));
+      assertEquals((Float) layer.getLineOpacity().getValue(), (Float) 0.3f);
     });
   }
 
   @Test
-  public void testLineOpacityAsExponentialSourceFunction() {
+  public void testLineOpacityAsExpression() {
     validateTestSetup();
     setupLayer();
-    Timber.i("line-opacity");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineOpacity(
-            property(
-              "FeaturePropertyA",
-              exponential(
-                stop(0.3f, lineOpacity(0.3f))
-              ).withBase(0.5f)
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineOpacity());
-        assertNotNull(layer.getLineOpacity().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineOpacity().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineOpacity().getFunction()).getProperty());
-        assertEquals(ExponentialStops.class, layer.getLineOpacity().getFunction().getStops().getClass());
-      }
-    });
-  }
+    Timber.i("line-opacity-expression");
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineOpacityAsCategoricalSourceFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-opacity");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineOpacity(
-            property(
-              "FeaturePropertyA",
-              categorical(
-                stop(1.0f, lineOpacity(0.3f))
-              )
-            ).withDefaultValue(lineOpacity(0.3f))
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineOpacity());
-        assertNotNull(layer.getLineOpacity().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineOpacity().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineOpacity().getFunction()).getProperty());
-        assertEquals(CategoricalStops.class, layer.getLineOpacity().getFunction().getStops().getClass());
-        assertNotNull(((SourceFunction) layer.getLineOpacity().getFunction()).getDefaultValue());
-        assertNotNull(((SourceFunction) layer.getLineOpacity().getFunction()).getDefaultValue().getValue());
-        assertEquals(0.3f, ((SourceFunction) layer.getLineOpacity().getFunction()).getDefaultValue().getValue());
-      }
+      // Set and Get
+      Expression expression = number(Expression.get("undefined"));
+      layer.setProperties(lineOpacity(expression));
+      assertEquals(layer.getLineOpacity().getExpression(), expression);
     });
-
   }
 
-  @Test
-  public void testLineOpacityAsCompositeFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-opacity");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineOpacity(
-            composite(
-              "FeaturePropertyA",
-              exponential(
-                stop(0, 0.3f, lineOpacity(0.9f))
-              ).withBase(0.5f)
-            ).withDefaultValue(lineOpacity(0.3f))
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineOpacity());
-        assertNotNull(layer.getLineOpacity().getFunction());
-        assertEquals(CompositeFunction.class, layer.getLineOpacity().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((CompositeFunction) layer.getLineOpacity().getFunction()).getProperty());
-        assertEquals(ExponentialStops.class, layer.getLineOpacity().getFunction().getStops().getClass());
-        assertEquals(1, ((ExponentialStops) layer.getLineOpacity().getFunction().getStops()).size());
-
-        ExponentialStops<Stop.CompositeValue<Float, Float>, Float> stops =
-          (ExponentialStops<Stop.CompositeValue<Float, Float>, Float>) layer.getLineOpacity().getFunction().getStops();
-        Stop<Stop.CompositeValue<Float, Float>, Float> stop = stops.iterator().next();
-        assertEquals(0f, stop.in.zoom, 0.001);
-        assertEquals(0.3f, stop.in.value, 0.001f);
-        assertEquals(0.9f, stop.out, 0.001f);
-      }
-    });
-  }
 
   @Test
   public void testLineColorTransition() {
     validateTestSetup();
     setupLayer();
     Timber.i("line-colorTransitionOptions");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        TransitionOptions options = new TransitionOptions(300, 100);
-        layer.setLineColorTransition(options);
-        assertEquals(layer.getLineColorTransition(), options);
-      }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
+
+      // Set and Get
+      TransitionOptions options = new TransitionOptions(300, 100);
+      layer.setLineColorTransition(options);
+      assertEquals(layer.getLineColorTransition(), options);
     });
   }
 
@@ -581,157 +242,42 @@ public class LineLayerTest extends BaseActivityTest {
     validateTestSetup();
     setupLayer();
     Timber.i("line-color");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        layer.setProperties(lineColor("rgba(0, 0, 0, 1)"));
-        assertEquals((String) layer.getLineColor().getValue(), (String) "rgba(0, 0, 0, 1)");
-      }
-    });
-  }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineColorAsCameraFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-color");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineColor(
-            zoom(
-              exponential(
-                stop(2, lineColor("rgba(0, 0, 0, 1)"))
-              ).withBase(0.5f)
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineColor());
-        assertNotNull(layer.getLineColor().getFunction());
-        assertEquals(CameraFunction.class, layer.getLineColor().getFunction().getClass());
-        assertEquals(ExponentialStops.class, layer.getLineColor().getFunction().getStops().getClass());
-        assertEquals(0.5f, ((ExponentialStops) layer.getLineColor().getFunction().getStops()).getBase(), 0.001);
-        assertEquals(1, ((ExponentialStops) layer.getLineColor().getFunction().getStops()).size());
-      }
+      // Set and Get
+      layer.setProperties(lineColor("rgba(0, 0, 0, 1)"));
+      assertEquals((String) layer.getLineColor().getValue(), (String) "rgba(0, 0, 0, 1)");
     });
   }
 
   @Test
-  public void testLineColorAsIdentitySourceFunction() {
+  public void testLineColorAsExpression() {
     validateTestSetup();
     setupLayer();
-    Timber.i("line-color");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineColor(property("FeaturePropertyA", Stops.<String>identity()))
-        );
-
-        // Verify
-        assertNotNull(layer.getLineColor());
-        assertNotNull(layer.getLineColor().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineColor().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineColor().getFunction()).getProperty());
-        assertEquals(IdentityStops.class, layer.getLineColor().getFunction().getStops().getClass());
-      }
-    });
-  }
+    Timber.i("line-color-expression");
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineColorAsExponentialSourceFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-color");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineColor(
-            property(
-              "FeaturePropertyA",
-              exponential(
-                stop(Color.RED, lineColor(Color.RED))
-              ).withBase(0.5f)
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineColor());
-        assertNotNull(layer.getLineColor().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineColor().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineColor().getFunction()).getProperty());
-        assertEquals(ExponentialStops.class, layer.getLineColor().getFunction().getStops().getClass());
-      }
+      // Set and Get
+      Expression expression = toColor(Expression.get("undefined"));
+      layer.setProperties(lineColor(expression));
+      assertEquals(layer.getLineColor().getExpression(), expression);
     });
   }
 
-  @Test
-  public void testLineColorAsCategoricalSourceFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-color");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineColor(
-            property(
-              "FeaturePropertyA",
-              categorical(
-                stop("valueA", lineColor(Color.RED))
-              )
-            ).withDefaultValue(lineColor(Color.GREEN))
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineColor());
-        assertNotNull(layer.getLineColor().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineColor().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineColor().getFunction()).getProperty());
-        assertEquals(CategoricalStops.class, layer.getLineColor().getFunction().getStops().getClass());
-        assertNotNull(((SourceFunction) layer.getLineColor().getFunction()).getDefaultValue());
-        assertNotNull(((SourceFunction) layer.getLineColor().getFunction()).getDefaultValue().getValue());
-        assertEquals(Color.GREEN, (int) ((SourceFunction) layer.getLineColor().getFunction()).getDefaultValue().getColorInt());
-      }
-    });
-
-  }
 
   @Test
   public void testLineColorAsIntConstant() {
     validateTestSetup();
     setupLayer();
     Timber.i("line-color");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        layer.setProperties(lineColor(Color.RED));
-        assertEquals(layer.getLineColorAsInt(), Color.RED);
-      }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
+
+      // Set and Get
+      layer.setProperties(lineColor(Color.RED));
+      assertEquals(layer.getLineColorAsInt(), Color.RED);
     });
   }
 
@@ -740,16 +286,13 @@ public class LineLayerTest extends BaseActivityTest {
     validateTestSetup();
     setupLayer();
     Timber.i("line-translateTransitionOptions");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        TransitionOptions options = new TransitionOptions(300, 100);
-        layer.setLineTranslateTransition(options);
-        assertEquals(layer.getLineTranslateTransition(), options);
-      }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
+
+      // Set and Get
+      TransitionOptions options = new TransitionOptions(300, 100);
+      layer.setLineTranslateTransition(options);
+      assertEquals(layer.getLineTranslateTransition(), options);
     });
   }
 
@@ -758,47 +301,12 @@ public class LineLayerTest extends BaseActivityTest {
     validateTestSetup();
     setupLayer();
     Timber.i("line-translate");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        layer.setProperties(lineTranslate(new Float[] {0f, 0f}));
-        assertEquals((Float[]) layer.getLineTranslate().getValue(), (Float[]) new Float[] {0f, 0f});
-      }
-    });
-  }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineTranslateAsCameraFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-translate");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineTranslate(
-            zoom(
-              exponential(
-                stop(2, lineTranslate(new Float[] {0f, 0f}))
-              ).withBase(0.5f)
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineTranslate());
-        assertNotNull(layer.getLineTranslate().getFunction());
-        assertEquals(CameraFunction.class, layer.getLineTranslate().getFunction().getClass());
-        assertEquals(ExponentialStops.class, layer.getLineTranslate().getFunction().getStops().getClass());
-        assertEquals(0.5f, ((ExponentialStops) layer.getLineTranslate().getFunction().getStops()).getBase(), 0.001);
-        assertEquals(1, ((ExponentialStops) layer.getLineTranslate().getFunction().getStops()).size());
-      }
+      // Set and Get
+      layer.setProperties(lineTranslate(new Float[] {0f, 0f}));
+      assertEquals((Float[]) layer.getLineTranslate().getValue(), (Float[]) new Float[] {0f, 0f});
     });
   }
 
@@ -807,46 +315,12 @@ public class LineLayerTest extends BaseActivityTest {
     validateTestSetup();
     setupLayer();
     Timber.i("line-translate-anchor");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        layer.setProperties(lineTranslateAnchor(LINE_TRANSLATE_ANCHOR_MAP));
-        assertEquals((String) layer.getLineTranslateAnchor().getValue(), (String) LINE_TRANSLATE_ANCHOR_MAP);
-      }
-    });
-  }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineTranslateAnchorAsCameraFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-translate-anchor");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineTranslateAnchor(
-            zoom(
-              interval(
-                stop(2, lineTranslateAnchor(LINE_TRANSLATE_ANCHOR_MAP))
-              )
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineTranslateAnchor());
-        assertNotNull(layer.getLineTranslateAnchor().getFunction());
-        assertEquals(CameraFunction.class, layer.getLineTranslateAnchor().getFunction().getClass());
-        assertEquals(IntervalStops.class, layer.getLineTranslateAnchor().getFunction().getStops().getClass());
-        assertEquals(1, ((IntervalStops) layer.getLineTranslateAnchor().getFunction().getStops()).size());
-      }
+      // Set and Get
+      layer.setProperties(lineTranslateAnchor(LINE_TRANSLATE_ANCHOR_MAP));
+      assertEquals((String) layer.getLineTranslateAnchor().getValue(), (String) LINE_TRANSLATE_ANCHOR_MAP);
     });
   }
 
@@ -855,16 +329,13 @@ public class LineLayerTest extends BaseActivityTest {
     validateTestSetup();
     setupLayer();
     Timber.i("line-widthTransitionOptions");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        TransitionOptions options = new TransitionOptions(300, 100);
-        layer.setLineWidthTransition(options);
-        assertEquals(layer.getLineWidthTransition(), options);
-      }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
+
+      // Set and Get
+      TransitionOptions options = new TransitionOptions(300, 100);
+      layer.setLineWidthTransition(options);
+      assertEquals(layer.getLineWidthTransition(), options);
     });
   }
 
@@ -873,198 +344,43 @@ public class LineLayerTest extends BaseActivityTest {
     validateTestSetup();
     setupLayer();
     Timber.i("line-width");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        layer.setProperties(lineWidth(0.3f));
-        assertEquals((Float) layer.getLineWidth().getValue(), (Float) 0.3f);
-      }
-    });
-  }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineWidthAsCameraFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-width");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineWidth(
-            zoom(
-              exponential(
-                stop(2, lineWidth(0.3f))
-              ).withBase(0.5f)
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineWidth());
-        assertNotNull(layer.getLineWidth().getFunction());
-        assertEquals(CameraFunction.class, layer.getLineWidth().getFunction().getClass());
-        assertEquals(ExponentialStops.class, layer.getLineWidth().getFunction().getStops().getClass());
-        assertEquals(0.5f, ((ExponentialStops) layer.getLineWidth().getFunction().getStops()).getBase(), 0.001);
-        assertEquals(1, ((ExponentialStops) layer.getLineWidth().getFunction().getStops()).size());
-      }
+      // Set and Get
+      layer.setProperties(lineWidth(0.3f));
+      assertEquals((Float) layer.getLineWidth().getValue(), (Float) 0.3f);
     });
   }
 
   @Test
-  public void testLineWidthAsIdentitySourceFunction() {
+  public void testLineWidthAsExpression() {
     validateTestSetup();
     setupLayer();
-    Timber.i("line-width");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineWidth(property("FeaturePropertyA", Stops.<Float>identity()))
-        );
-
-        // Verify
-        assertNotNull(layer.getLineWidth());
-        assertNotNull(layer.getLineWidth().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineWidth().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineWidth().getFunction()).getProperty());
-        assertEquals(IdentityStops.class, layer.getLineWidth().getFunction().getStops().getClass());
-      }
-    });
-  }
+    Timber.i("line-width-expression");
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineWidthAsExponentialSourceFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-width");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineWidth(
-            property(
-              "FeaturePropertyA",
-              exponential(
-                stop(0.3f, lineWidth(0.3f))
-              ).withBase(0.5f)
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineWidth());
-        assertNotNull(layer.getLineWidth().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineWidth().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineWidth().getFunction()).getProperty());
-        assertEquals(ExponentialStops.class, layer.getLineWidth().getFunction().getStops().getClass());
-      }
+      // Set and Get
+      Expression expression = number(Expression.get("undefined"));
+      layer.setProperties(lineWidth(expression));
+      assertEquals(layer.getLineWidth().getExpression(), expression);
     });
   }
 
-  @Test
-  public void testLineWidthAsCategoricalSourceFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-width");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineWidth(
-            property(
-              "FeaturePropertyA",
-              categorical(
-                stop(1.0f, lineWidth(0.3f))
-              )
-            ).withDefaultValue(lineWidth(0.3f))
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineWidth());
-        assertNotNull(layer.getLineWidth().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineWidth().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineWidth().getFunction()).getProperty());
-        assertEquals(CategoricalStops.class, layer.getLineWidth().getFunction().getStops().getClass());
-        assertNotNull(((SourceFunction) layer.getLineWidth().getFunction()).getDefaultValue());
-        assertNotNull(((SourceFunction) layer.getLineWidth().getFunction()).getDefaultValue().getValue());
-        assertEquals(0.3f, ((SourceFunction) layer.getLineWidth().getFunction()).getDefaultValue().getValue());
-      }
-    });
-
-  }
-
-  @Test
-  public void testLineWidthAsCompositeFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-width");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineWidth(
-            composite(
-              "FeaturePropertyA",
-              exponential(
-                stop(0, 0.3f, lineWidth(0.9f))
-              ).withBase(0.5f)
-            ).withDefaultValue(lineWidth(0.3f))
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineWidth());
-        assertNotNull(layer.getLineWidth().getFunction());
-        assertEquals(CompositeFunction.class, layer.getLineWidth().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((CompositeFunction) layer.getLineWidth().getFunction()).getProperty());
-        assertEquals(ExponentialStops.class, layer.getLineWidth().getFunction().getStops().getClass());
-        assertEquals(1, ((ExponentialStops) layer.getLineWidth().getFunction().getStops()).size());
-
-        ExponentialStops<Stop.CompositeValue<Float, Float>, Float> stops =
-          (ExponentialStops<Stop.CompositeValue<Float, Float>, Float>) layer.getLineWidth().getFunction().getStops();
-        Stop<Stop.CompositeValue<Float, Float>, Float> stop = stops.iterator().next();
-        assertEquals(0f, stop.in.zoom, 0.001);
-        assertEquals(0.3f, stop.in.value, 0.001f);
-        assertEquals(0.9f, stop.out, 0.001f);
-      }
-    });
-  }
 
   @Test
   public void testLineGapWidthTransition() {
     validateTestSetup();
     setupLayer();
     Timber.i("line-gap-widthTransitionOptions");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        TransitionOptions options = new TransitionOptions(300, 100);
-        layer.setLineGapWidthTransition(options);
-        assertEquals(layer.getLineGapWidthTransition(), options);
-      }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
+
+      // Set and Get
+      TransitionOptions options = new TransitionOptions(300, 100);
+      layer.setLineGapWidthTransition(options);
+      assertEquals(layer.getLineGapWidthTransition(), options);
     });
   }
 
@@ -1073,380 +389,57 @@ public class LineLayerTest extends BaseActivityTest {
     validateTestSetup();
     setupLayer();
     Timber.i("line-gap-width");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        layer.setProperties(lineGapWidth(0.3f));
-        assertEquals((Float) layer.getLineGapWidth().getValue(), (Float) 0.3f);
-      }
-    });
-  }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineGapWidthAsCameraFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-gap-width");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineGapWidth(
-            zoom(
-              exponential(
-                stop(2, lineGapWidth(0.3f))
-              ).withBase(0.5f)
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineGapWidth());
-        assertNotNull(layer.getLineGapWidth().getFunction());
-        assertEquals(CameraFunction.class, layer.getLineGapWidth().getFunction().getClass());
-        assertEquals(ExponentialStops.class, layer.getLineGapWidth().getFunction().getStops().getClass());
-        assertEquals(0.5f, ((ExponentialStops) layer.getLineGapWidth().getFunction().getStops()).getBase(), 0.001);
-        assertEquals(1, ((ExponentialStops) layer.getLineGapWidth().getFunction().getStops()).size());
-      }
+      // Set and Get
+      layer.setProperties(lineGapWidth(0.3f));
+      assertEquals((Float) layer.getLineGapWidth().getValue(), (Float) 0.3f);
     });
   }
 
   @Test
-  public void testLineGapWidthAsIdentitySourceFunction() {
+  public void testLineGapWidthAsExpression() {
     validateTestSetup();
     setupLayer();
-    Timber.i("line-gap-width");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineGapWidth(property("FeaturePropertyA", Stops.<Float>identity()))
-        );
-
-        // Verify
-        assertNotNull(layer.getLineGapWidth());
-        assertNotNull(layer.getLineGapWidth().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineGapWidth().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineGapWidth().getFunction()).getProperty());
-        assertEquals(IdentityStops.class, layer.getLineGapWidth().getFunction().getStops().getClass());
-      }
-    });
-  }
+    Timber.i("line-gap-width-expression");
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineGapWidthAsExponentialSourceFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-gap-width");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineGapWidth(
-            property(
-              "FeaturePropertyA",
-              exponential(
-                stop(0.3f, lineGapWidth(0.3f))
-              ).withBase(0.5f)
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineGapWidth());
-        assertNotNull(layer.getLineGapWidth().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineGapWidth().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineGapWidth().getFunction()).getProperty());
-        assertEquals(ExponentialStops.class, layer.getLineGapWidth().getFunction().getStops().getClass());
-      }
+      // Set and Get
+      Expression expression = number(Expression.get("undefined"));
+      layer.setProperties(lineGapWidth(expression));
+      assertEquals(layer.getLineGapWidth().getExpression(), expression);
     });
   }
 
-  @Test
-  public void testLineGapWidthAsCategoricalSourceFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-gap-width");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineGapWidth(
-            property(
-              "FeaturePropertyA",
-              categorical(
-                stop(1.0f, lineGapWidth(0.3f))
-              )
-            ).withDefaultValue(lineGapWidth(0.3f))
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineGapWidth());
-        assertNotNull(layer.getLineGapWidth().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineGapWidth().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineGapWidth().getFunction()).getProperty());
-        assertEquals(CategoricalStops.class, layer.getLineGapWidth().getFunction().getStops().getClass());
-        assertNotNull(((SourceFunction) layer.getLineGapWidth().getFunction()).getDefaultValue());
-        assertNotNull(((SourceFunction) layer.getLineGapWidth().getFunction()).getDefaultValue().getValue());
-        assertEquals(0.3f, ((SourceFunction) layer.getLineGapWidth().getFunction()).getDefaultValue().getValue());
-      }
-    });
-
-  }
-
-  @Test
-  public void testLineGapWidthAsCompositeFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-gap-width");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineGapWidth(
-            composite(
-              "FeaturePropertyA",
-              exponential(
-                stop(0, 0.3f, lineGapWidth(0.9f))
-              ).withBase(0.5f)
-            ).withDefaultValue(lineGapWidth(0.3f))
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineGapWidth());
-        assertNotNull(layer.getLineGapWidth().getFunction());
-        assertEquals(CompositeFunction.class, layer.getLineGapWidth().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((CompositeFunction) layer.getLineGapWidth().getFunction()).getProperty());
-        assertEquals(ExponentialStops.class, layer.getLineGapWidth().getFunction().getStops().getClass());
-        assertEquals(1, ((ExponentialStops) layer.getLineGapWidth().getFunction().getStops()).size());
-
-        ExponentialStops<Stop.CompositeValue<Float, Float>, Float> stops =
-          (ExponentialStops<Stop.CompositeValue<Float, Float>, Float>) layer.getLineGapWidth().getFunction().getStops();
-        Stop<Stop.CompositeValue<Float, Float>, Float> stop = stops.iterator().next();
-        assertEquals(0f, stop.in.zoom, 0.001);
-        assertEquals(0.3f, stop.in.value, 0.001f);
-        assertEquals(0.9f, stop.out, 0.001f);
-      }
-    });
-  }
 
   @Test
   public void testLineOffsetTransition() {
     validateTestSetup();
     setupLayer();
     Timber.i("line-offsetTransitionOptions");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        TransitionOptions options = new TransitionOptions(300, 100);
-        layer.setLineOffsetTransition(options);
-        assertEquals(layer.getLineOffsetTransition(), options);
-      }
-    });
-  }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineOffsetAsConstant() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-offset");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        layer.setProperties(lineOffset(0.3f));
-        assertEquals((Float) layer.getLineOffset().getValue(), (Float) 0.3f);
-      }
-    });
-  }
-
-  @Test
-  public void testLineOffsetAsCameraFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-offset");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineOffset(
-            zoom(
-              exponential(
-                stop(2, lineOffset(0.3f))
-              ).withBase(0.5f)
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineOffset());
-        assertNotNull(layer.getLineOffset().getFunction());
-        assertEquals(CameraFunction.class, layer.getLineOffset().getFunction().getClass());
-        assertEquals(ExponentialStops.class, layer.getLineOffset().getFunction().getStops().getClass());
-        assertEquals(0.5f, ((ExponentialStops) layer.getLineOffset().getFunction().getStops()).getBase(), 0.001);
-        assertEquals(1, ((ExponentialStops) layer.getLineOffset().getFunction().getStops()).size());
-      }
-    });
-  }
-
-  @Test
-  public void testLineOffsetAsIdentitySourceFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-offset");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineOffset(property("FeaturePropertyA", Stops.<Float>identity()))
-        );
-
-        // Verify
-        assertNotNull(layer.getLineOffset());
-        assertNotNull(layer.getLineOffset().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineOffset().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineOffset().getFunction()).getProperty());
-        assertEquals(IdentityStops.class, layer.getLineOffset().getFunction().getStops().getClass());
-      }
+      // Set and Get
+      TransitionOptions options = new TransitionOptions(300, 100);
+      layer.setLineOffsetTransition(options);
+      assertEquals(layer.getLineOffsetTransition(), options);
     });
   }
 
   @Test
-  public void testLineOffsetAsExponentialSourceFunction() {
+  public void testLineOffsetAsConstant() {
     validateTestSetup();
     setupLayer();
     Timber.i("line-offset");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineOffset(
-            property(
-              "FeaturePropertyA",
-              exponential(
-                stop(0.3f, lineOffset(0.3f))
-              ).withBase(0.5f)
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineOffset());
-        assertNotNull(layer.getLineOffset().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineOffset().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineOffset().getFunction()).getProperty());
-        assertEquals(ExponentialStops.class, layer.getLineOffset().getFunction().getStops().getClass());
-      }
-    });
-  }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineOffsetAsCategoricalSourceFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-offset");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineOffset(
-            property(
-              "FeaturePropertyA",
-              categorical(
-                stop(1.0f, lineOffset(0.3f))
-              )
-            ).withDefaultValue(lineOffset(0.3f))
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineOffset());
-        assertNotNull(layer.getLineOffset().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineOffset().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineOffset().getFunction()).getProperty());
-        assertEquals(CategoricalStops.class, layer.getLineOffset().getFunction().getStops().getClass());
-        assertNotNull(((SourceFunction) layer.getLineOffset().getFunction()).getDefaultValue());
-        assertNotNull(((SourceFunction) layer.getLineOffset().getFunction()).getDefaultValue().getValue());
-        assertEquals(0.3f, ((SourceFunction) layer.getLineOffset().getFunction()).getDefaultValue().getValue());
-      }
-    });
-
-  }
-
-  @Test
-  public void testLineOffsetAsCompositeFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-offset");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineOffset(
-            composite(
-              "FeaturePropertyA",
-              exponential(
-                stop(0, 0.3f, lineOffset(0.9f))
-              ).withBase(0.5f)
-            ).withDefaultValue(lineOffset(0.3f))
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineOffset());
-        assertNotNull(layer.getLineOffset().getFunction());
-        assertEquals(CompositeFunction.class, layer.getLineOffset().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((CompositeFunction) layer.getLineOffset().getFunction()).getProperty());
-        assertEquals(ExponentialStops.class, layer.getLineOffset().getFunction().getStops().getClass());
-        assertEquals(1, ((ExponentialStops) layer.getLineOffset().getFunction().getStops()).size());
-
-        ExponentialStops<Stop.CompositeValue<Float, Float>, Float> stops =
-          (ExponentialStops<Stop.CompositeValue<Float, Float>, Float>) layer.getLineOffset().getFunction().getStops();
-        Stop<Stop.CompositeValue<Float, Float>, Float> stop = stops.iterator().next();
-        assertEquals(0f, stop.in.zoom, 0.001);
-        assertEquals(0.3f, stop.in.value, 0.001f);
-        assertEquals(0.9f, stop.out, 0.001f);
-      }
+      // Set and Get
+      layer.setProperties(lineOffset(0.3f));
+      assertEquals((Float) layer.getLineOffset().getValue(), (Float) 0.3f);
     });
   }
 
@@ -1455,216 +448,58 @@ public class LineLayerTest extends BaseActivityTest {
     validateTestSetup();
     setupLayer();
     Timber.i("line-blurTransitionOptions");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        TransitionOptions options = new TransitionOptions(300, 100);
-        layer.setLineBlurTransition(options);
-        assertEquals(layer.getLineBlurTransition(), options);
-      }
-    });
-  }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineBlurAsConstant() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-blur");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        layer.setProperties(lineBlur(0.3f));
-        assertEquals((Float) layer.getLineBlur().getValue(), (Float) 0.3f);
-      }
+      // Set and Get
+      TransitionOptions options = new TransitionOptions(300, 100);
+      layer.setLineBlurTransition(options);
+      assertEquals(layer.getLineBlurTransition(), options);
     });
   }
 
   @Test
-  public void testLineBlurAsCameraFunction() {
+  public void testLineBlurAsConstant() {
     validateTestSetup();
     setupLayer();
     Timber.i("line-blur");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineBlur(
-            zoom(
-              exponential(
-                stop(2, lineBlur(0.3f))
-              ).withBase(0.5f)
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineBlur());
-        assertNotNull(layer.getLineBlur().getFunction());
-        assertEquals(CameraFunction.class, layer.getLineBlur().getFunction().getClass());
-        assertEquals(ExponentialStops.class, layer.getLineBlur().getFunction().getStops().getClass());
-        assertEquals(0.5f, ((ExponentialStops) layer.getLineBlur().getFunction().getStops()).getBase(), 0.001);
-        assertEquals(1, ((ExponentialStops) layer.getLineBlur().getFunction().getStops()).size());
-      }
-    });
-  }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineBlurAsIdentitySourceFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-blur");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineBlur(property("FeaturePropertyA", Stops.<Float>identity()))
-        );
-
-        // Verify
-        assertNotNull(layer.getLineBlur());
-        assertNotNull(layer.getLineBlur().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineBlur().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineBlur().getFunction()).getProperty());
-        assertEquals(IdentityStops.class, layer.getLineBlur().getFunction().getStops().getClass());
-      }
+      // Set and Get
+      layer.setProperties(lineBlur(0.3f));
+      assertEquals((Float) layer.getLineBlur().getValue(), (Float) 0.3f);
     });
   }
 
   @Test
-  public void testLineBlurAsExponentialSourceFunction() {
+  public void testLineBlurAsExpression() {
     validateTestSetup();
     setupLayer();
-    Timber.i("line-blur");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineBlur(
-            property(
-              "FeaturePropertyA",
-              exponential(
-                stop(0.3f, lineBlur(0.3f))
-              ).withBase(0.5f)
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineBlur());
-        assertNotNull(layer.getLineBlur().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineBlur().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineBlur().getFunction()).getProperty());
-        assertEquals(ExponentialStops.class, layer.getLineBlur().getFunction().getStops().getClass());
-      }
-    });
-  }
+    Timber.i("line-blur-expression");
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineBlurAsCategoricalSourceFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-blur");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineBlur(
-            property(
-              "FeaturePropertyA",
-              categorical(
-                stop(1.0f, lineBlur(0.3f))
-              )
-            ).withDefaultValue(lineBlur(0.3f))
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineBlur());
-        assertNotNull(layer.getLineBlur().getFunction());
-        assertEquals(SourceFunction.class, layer.getLineBlur().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((SourceFunction) layer.getLineBlur().getFunction()).getProperty());
-        assertEquals(CategoricalStops.class, layer.getLineBlur().getFunction().getStops().getClass());
-        assertNotNull(((SourceFunction) layer.getLineBlur().getFunction()).getDefaultValue());
-        assertNotNull(((SourceFunction) layer.getLineBlur().getFunction()).getDefaultValue().getValue());
-        assertEquals(0.3f, ((SourceFunction) layer.getLineBlur().getFunction()).getDefaultValue().getValue());
-      }
+      // Set and Get
+      Expression expression = number(Expression.get("undefined"));
+      layer.setProperties(lineBlur(expression));
+      assertEquals(layer.getLineBlur().getExpression(), expression);
     });
-
   }
 
-  @Test
-  public void testLineBlurAsCompositeFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-blur");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineBlur(
-            composite(
-              "FeaturePropertyA",
-              exponential(
-                stop(0, 0.3f, lineBlur(0.9f))
-              ).withBase(0.5f)
-            ).withDefaultValue(lineBlur(0.3f))
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineBlur());
-        assertNotNull(layer.getLineBlur().getFunction());
-        assertEquals(CompositeFunction.class, layer.getLineBlur().getFunction().getClass());
-        assertEquals("FeaturePropertyA", ((CompositeFunction) layer.getLineBlur().getFunction()).getProperty());
-        assertEquals(ExponentialStops.class, layer.getLineBlur().getFunction().getStops().getClass());
-        assertEquals(1, ((ExponentialStops) layer.getLineBlur().getFunction().getStops()).size());
-
-        ExponentialStops<Stop.CompositeValue<Float, Float>, Float> stops =
-          (ExponentialStops<Stop.CompositeValue<Float, Float>, Float>) layer.getLineBlur().getFunction().getStops();
-        Stop<Stop.CompositeValue<Float, Float>, Float> stop = stops.iterator().next();
-        assertEquals(0f, stop.in.zoom, 0.001);
-        assertEquals(0.3f, stop.in.value, 0.001f);
-        assertEquals(0.9f, stop.out, 0.001f);
-      }
-    });
-  }
 
   @Test
   public void testLineDasharrayTransition() {
     validateTestSetup();
     setupLayer();
     Timber.i("line-dasharrayTransitionOptions");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        TransitionOptions options = new TransitionOptions(300, 100);
-        layer.setLineDasharrayTransition(options);
-        assertEquals(layer.getLineDasharrayTransition(), options);
-      }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
+
+      // Set and Get
+      TransitionOptions options = new TransitionOptions(300, 100);
+      layer.setLineDasharrayTransition(options);
+      assertEquals(layer.getLineDasharrayTransition(), options);
     });
   }
 
@@ -1673,46 +508,12 @@ public class LineLayerTest extends BaseActivityTest {
     validateTestSetup();
     setupLayer();
     Timber.i("line-dasharray");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        layer.setProperties(lineDasharray(new Float[] {}));
-        assertEquals((Float[]) layer.getLineDasharray().getValue(), (Float[]) new Float[] {});
-      }
-    });
-  }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLineDasharrayAsCameraFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-dasharray");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          lineDasharray(
-            zoom(
-              interval(
-                stop(2, lineDasharray(new Float[] {}))
-              )
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLineDasharray());
-        assertNotNull(layer.getLineDasharray().getFunction());
-        assertEquals(CameraFunction.class, layer.getLineDasharray().getFunction().getClass());
-        assertEquals(IntervalStops.class, layer.getLineDasharray().getFunction().getStops().getClass());
-        assertEquals(1, ((IntervalStops) layer.getLineDasharray().getFunction().getStops()).size());
-      }
+      // Set and Get
+      layer.setProperties(lineDasharray(new Float[] {}));
+      assertEquals((Float[]) layer.getLineDasharray().getValue(), (Float[]) new Float[] {});
     });
   }
 
@@ -1721,16 +522,13 @@ public class LineLayerTest extends BaseActivityTest {
     validateTestSetup();
     setupLayer();
     Timber.i("line-patternTransitionOptions");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        TransitionOptions options = new TransitionOptions(300, 100);
-        layer.setLinePatternTransition(options);
-        assertEquals(layer.getLinePatternTransition(), options);
-      }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
+
+      // Set and Get
+      TransitionOptions options = new TransitionOptions(300, 100);
+      layer.setLinePatternTransition(options);
+      assertEquals(layer.getLinePatternTransition(), options);
     });
   }
 
@@ -1739,47 +537,12 @@ public class LineLayerTest extends BaseActivityTest {
     validateTestSetup();
     setupLayer();
     Timber.i("line-pattern");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set and Get
-        layer.setProperties(linePattern("pedestrian-polygon"));
-        assertEquals((String) layer.getLinePattern().getValue(), (String) "pedestrian-polygon");
-      }
-    });
-  }
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      assertNotNull(layer);
 
-  @Test
-  public void testLinePatternAsCameraFunction() {
-    validateTestSetup();
-    setupLayer();
-    Timber.i("line-pattern");
-    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
-      @Override
-      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
-        assertNotNull(layer);
-
-        // Set
-        layer.setProperties(
-          linePattern(
-            zoom(
-              interval(
-                stop(2, linePattern("pedestrian-polygon"))
-              )
-            )
-          )
-        );
-
-        // Verify
-        assertNotNull(layer.getLinePattern());
-        assertNotNull(layer.getLinePattern().getFunction());
-        assertEquals(CameraFunction.class, layer.getLinePattern().getFunction().getClass());
-        assertEquals(IntervalStops.class, layer.getLinePattern().getFunction().getStops().getClass());
-        assertEquals(1, ((IntervalStops) layer.getLinePattern().getFunction().getStops()).size());
-      }
+      // Set and Get
+      layer.setProperties(linePattern("pedestrian-polygon"));
+      assertEquals((String) layer.getLinePattern().getValue(), (String) "pedestrian-polygon");
     });
   }
-
-}
+}
\ No newline at end of file