diff --git a/apps/app/ui-tests-app/layouts-percent/grid.ts b/apps/app/ui-tests-app/layouts-percent/grid.ts
index 0f87f7efc..0c5ca55ca 100644
--- a/apps/app/ui-tests-app/layouts-percent/grid.ts
+++ b/apps/app/ui-tests-app/layouts-percent/grid.ts
@@ -9,9 +9,11 @@ export function onLoaded(args: { eventName: string, object: any }) {
 }
 
 export function onAddRowColumn(args: { eventName: string, object: any }) {
+
     var layout = <GridLayout>args.object.parent.parent;
     var row = new ItemSpec(1, GridUnitType.AUTO);
     var column = new ItemSpec(1, GridUnitType.AUTO);
+
     layout.addRow(row);
     layout.addColumn(column);
 
diff --git a/apps/app/ui-tests-app/layouts-percent/myview.ts b/apps/app/ui-tests-app/layouts-percent/myview.ts
index ce6f5afdb..82c00f151 100644
--- a/apps/app/ui-tests-app/layouts-percent/myview.ts
+++ b/apps/app/ui-tests-app/layouts-percent/myview.ts
@@ -1,4 +1,4 @@
-import { LayoutBase, View, Observable, HorizontalAlignment, VerticalAlignment, Visibility} from "ui/layouts/layout-base";
+import { LayoutBase, View, Observable, HorizontalAlignment, VerticalAlignment, Visibility} from "ui/layouts/layout-base";
 
 export class ViewModel extends Observable {
 
@@ -42,32 +42,34 @@ export class ViewModel extends Observable {
 
     public onAlignments(args: { eventName: string, object: any }): void {
         var view: View = <View>args.object;
-        if (view.horizontalAlignment === HorizontalAlignment.STRETCH) {
-            view.horizontalAlignment = HorizontalAlignment.LEFT;
-            view.verticalAlignment = VerticalAlignment.TOP;
-        } else if (view.horizontalAlignment === HorizontalAlignment.LEFT) {
-            view.horizontalAlignment = HorizontalAlignment.CENTER;
-            view.verticalAlignment = VerticalAlignment.MIDDLE;
-        } else if (view.horizontalAlignment === HorizontalAlignment.CENTER) {
-            view.horizontalAlignment = HorizontalAlignment.RIGHT;
-            view.verticalAlignment = VerticalAlignment.BOTTOM;
+
+        if (view.horizontalAlignment === "stretch") {
+            view.horizontalAlignment = "left";
+            view.verticalAlignment = "top";
+        } else if (view.horizontalAlignment === "left") {
+            view.horizontalAlignment = "center";
+            view.verticalAlignment = "middle";
+        } else if (view.horizontalAlignment === "center") {
+            view.horizontalAlignment = "right";
+            view.verticalAlignment = "bottom";
         } else {
-            view.horizontalAlignment = HorizontalAlignment.STRETCH;
-            view.verticalAlignment = VerticalAlignment.STRETCH;
+            view.horizontalAlignment = "stretch";
+            view.verticalAlignment = "stretch";
         }
     }
 
     public onCollapse(args: { eventName: string, object: any }): void {
         var view: View = <View>args.object;
-        view.visibility = Visibility.COLLAPSE;
+        view.visibility = "collapse";
     }
 
     public onVisibile(args: { eventName: string, object: any }): void {
         var view: View = <View>args.object;
+
         var layout = <LayoutBase>view.parent;
 
-        var child = <View>layout.getViewById("collapse");
-        child.visibility = Visibility.VISIBLE;
+        var child = layout.getViewById<View>("collapse");
+        child.visibility = "visible";
     }
 
     // Layout properties
diff --git a/apps/app/ui-tests-app/layouts/grid.ts b/apps/app/ui-tests-app/layouts/grid.ts
index 0f87f7efc..9a53ed4f1 100644
--- a/apps/app/ui-tests-app/layouts/grid.ts
+++ b/apps/app/ui-tests-app/layouts/grid.ts
@@ -9,9 +9,11 @@ export function onLoaded(args: { eventName: string, object: any }) {
 }
 
 export function onAddRowColumn(args: { eventName: string, object: any }) {
+
     var layout = <GridLayout>args.object.parent.parent;
-    var row = new ItemSpec(1, GridUnitType.AUTO);
-    var column = new ItemSpec(1, GridUnitType.AUTO);
+    var row = new ItemSpec(1, "auto");
+    var column = new ItemSpec(1, "auto");
+
     layout.addRow(row);
     layout.addColumn(column);
 
diff --git a/apps/app/ui-tests-app/layouts/myview.ts b/apps/app/ui-tests-app/layouts/myview.ts
index 21182258c..cda30dea3 100644
--- a/apps/app/ui-tests-app/layouts/myview.ts
+++ b/apps/app/ui-tests-app/layouts/myview.ts
@@ -42,24 +42,24 @@ export class ViewModel extends Observable {
 
     public onAlignments(args: { eventName: string, object: any }): void {
         var view: View = <View>args.object;
-        if (view.horizontalAlignment === HorizontalAlignment.STRETCH) {
-            view.horizontalAlignment = HorizontalAlignment.LEFT;
-            view.verticalAlignment = VerticalAlignment.TOP;
-        } else if (view.horizontalAlignment === HorizontalAlignment.LEFT) {
-            view.horizontalAlignment = HorizontalAlignment.CENTER;
-            view.verticalAlignment = VerticalAlignment.MIDDLE;
-        } else if (view.horizontalAlignment === HorizontalAlignment.CENTER) {
-            view.horizontalAlignment = HorizontalAlignment.RIGHT;
-            view.verticalAlignment = VerticalAlignment.BOTTOM;
+        if (view.horizontalAlignment === "stretch") {
+            view.horizontalAlignment = "left";
+            view.verticalAlignment = "top";
+        } else if (view.horizontalAlignment === "left") {
+            view.horizontalAlignment = "center";
+            view.verticalAlignment = "middle";
+        } else if (view.horizontalAlignment === "center") {
+            view.horizontalAlignment = "right";
+            view.verticalAlignment = "bottom";
         } else {
-            view.horizontalAlignment = HorizontalAlignment.STRETCH;
-            view.verticalAlignment = VerticalAlignment.STRETCH;
+            view.horizontalAlignment = "stretch";
+            view.verticalAlignment = "stretch";
         }
     }
 
     public onCollapse(args: { eventName: string, object: any }): void {
         var view: View = <View>args.object;
-        view.visibility = Visibility.COLLAPSE;
+        view.visibility = "collapse";
     }
 
     public onVisibile(args: { eventName: string, object: any }): void {
@@ -67,7 +67,7 @@ export class ViewModel extends Observable {
         var layout = <LayoutBase>view.parent;
 
         var child = <View>layout.getViewById("collapse");
-        child.visibility = Visibility.VISIBLE;
+        child.visibility = "visible";
     }
 
     // Layout properties
diff --git a/apps/app/ui-tests-app/pages/pan-event.ts b/apps/app/ui-tests-app/pages/pan-event.ts
index 8a23a3f74..aa9b1ecef 100644
--- a/apps/app/ui-tests-app/pages/pan-event.ts
+++ b/apps/app/ui-tests-app/pages/pan-event.ts
@@ -7,7 +7,7 @@ import { TextView } from "ui/text-view";
 var view: View;
 export function navigatingTo(args: EventData) {
     var page = <Page>args.object;
-    view = <View>page.getViewById("target");
+    view = page.getViewById<View>("target");
 }
 
 export function onPan(data: PanGestureEventData) {
diff --git a/apps/app/ui-tests-app/tab-view/tab-view-icon.ts b/apps/app/ui-tests-app/tab-view/tab-view-icon.ts
index 970e62309..ff57cbb79 100644
--- a/apps/app/ui-tests-app/tab-view/tab-view-icon.ts
+++ b/apps/app/ui-tests-app/tab-view/tab-view-icon.ts
@@ -7,7 +7,9 @@ let iconModes = ["automatic", "alwaysOriginal", "alwaysTemplate", undefined];
 export function onChangeRenderingMode(args: EventData){
     let button = (<Button>args.object);
     let tabView = button.page.getViewById<TabView>("tab-view");
+
     tabView.iosIconRenderingMode = <"automatic" | "alwaysOriginal" | "alwaysTemplate">iconModes[(iconModes.indexOf(tabView.iosIconRenderingMode) + 1) % iconModes.length];
+
     for(let i = 0, length = tabView.items.length; i < length; i++){
         (<Button>tabView.items[i].view).text = "" + tabView.iosIconRenderingMode; 
     }
diff --git a/package.json b/package.json
index e2778da42..a58843977 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "time-grunt": "1.3.0",
     "tslint": "^3.15.1",
     "typedoc": "0.4.5",
-    "typescript": "~2.0.10"
+    "typescript": "^2.0.10"
   },
   "scripts": {
     "setup": "npm run dev-link-tns-platform-declarations && npm run dev-link-tns-core-modules && npm run dev-link-tests && npm run dev-link-apps",
diff --git a/tests/app/app/style_props.ts b/tests/app/app/style_props.ts
index 419d5063f..39d78dab8 100644
--- a/tests/app/app/style_props.ts
+++ b/tests/app/app/style_props.ts
@@ -1,6 +1,5 @@
 import * as style from "ui/styling/style";
 import {PropertyMetadata, PropertyMetadataSettings} from "ui/core/dependency-observable";
-import * as styleProperty from "ui/styling/style-property";
 import * as view from "ui/core/view";
 import * as buttonModule from "ui/button";
 import * as pages from "ui/page";
@@ -10,46 +9,46 @@ import {isAndroid} from "platform";
 // on Android we explicitly set propertySettings to None because android will invalidate its layout (skip unnecessary native call).
 let AffectsLayout = isAndroid ? PropertyMetadataSettings.None : PropertyMetadataSettings.AffectsLayout;
 
-export var fontFamilyProperty = new styleProperty.Property("fontFamily", "font-family", new PropertyMetadata(undefined, AffectsLayout));
+// export var fontFamilyProperty = new styleProperty.Property("fontFamily", "font-family", new PropertyMetadata(undefined, AffectsLayout));
 
-export class MyTextViewStyler implements style.Styler {
-    public static setFontFamilyProperty(view: view.View, newValue: any) {
-        if (view.android) {
-            (<android.widget.TextView>view.android).setTypeface(android.graphics.Typeface.create(newValue, android.graphics.Typeface.NORMAL));
-        }
-        else if (view.ios) {
-            var fontSize = (<UIButton>view._nativeView).titleLabel.font.pointSize;
-            (<UIButton>view._nativeView).titleLabel.font = UIFont.fontWithNameSize(newValue, fontSize);
-        }
-    }
+// export class MyTextViewStyler implements style.Styler {
+//     public static setFontFamilyProperty(view: view.View, newValue: any) {
+//         if (view.android) {
+//             (<android.widget.TextView>view.android).setTypeface(android.graphics.Typeface.create(newValue, android.graphics.Typeface.NORMAL));
+//         }
+//         else if (view.ios) {
+//             var fontSize = (<UIButton>view._nativeView).titleLabel.font.pointSize;
+//             (<UIButton>view._nativeView).titleLabel.font = UIFont.fontWithNameSize(newValue, fontSize);
+//         }
+//     }
 
-    public static resetFontFamilyProperty(view: view.View, nativeValue: any) {
-        if (view.android) {
-            (<android.widget.TextView>view.android).setTypeface(android.graphics.Typeface.create(nativeValue, android.graphics.Typeface.NORMAL));
-        }
-        else if (view.ios) {
-            var fontSize = (<UIButton>view._nativeView).titleLabel.font.pointSize;
-            (<UIButton>view._nativeView).titleLabel.font = UIFont.fontWithNameSize(nativeValue, fontSize);;
-        }
-    }
+//     public static resetFontFamilyProperty(view: view.View, nativeValue: any) {
+//         if (view.android) {
+//             (<android.widget.TextView>view.android).setTypeface(android.graphics.Typeface.create(nativeValue, android.graphics.Typeface.NORMAL));
+//         }
+//         else if (view.ios) {
+//             var fontSize = (<UIButton>view._nativeView).titleLabel.font.pointSize;
+//             (<UIButton>view._nativeView).titleLabel.font = UIFont.fontWithNameSize(nativeValue, fontSize);;
+//         }
+//     }
 
-    public static getNativeFontFamilyValue = function (view: view.View): any {
-        if (view.android) {
-            return (<android.widget.TextView>view.android).getTypeface();
-        }
-        else if (view.ios) {
-            return (<UIButton>view._nativeView).titleLabel.font.fontName;
-        }
-        return null;
-    }
+//     public static getNativeFontFamilyValue = function (view: view.View): any {
+//         if (view.android) {
+//             return (<android.widget.TextView>view.android).getTypeface();
+//         }
+//         else if (view.ios) {
+//             return (<UIButton>view._nativeView).titleLabel.font.fontName;
+//         }
+//         return null;
+//     }
 
-    public static registerHandlers() {
-        style.registerHandler(fontFamilyProperty, new style.StylePropertyChangedHandler(
-            MyTextViewStyler.setFontFamilyProperty,
-            MyTextViewStyler.resetFontFamilyProperty,
-            MyTextViewStyler.getNativeFontFamilyValue), "MyButton");
-    }
-}
+//     public static registerHandlers() {
+//         style.registerHandler(fontFamilyProperty, new style.StylePropertyChangedHandler(
+//             MyTextViewStyler.setFontFamilyProperty,
+//             MyTextViewStyler.resetFontFamilyProperty,
+//             MyTextViewStyler.getNativeFontFamilyValue), "MyButton");
+//     }
+// }
 
 //export class MyStyle extends styles.Style {
 //    get fontFamily(): string {
@@ -75,7 +74,7 @@ export class MyButton extends buttonModule.Button {
     
 }
 
-MyTextViewStyler.registerHandlers();
+// MyTextViewStyler.registerHandlers();
 
 export function createPage() {
     var stackLayout = new stackLayoutDef.StackLayout();
diff --git a/tests/app/pages/fonts-test.ts b/tests/app/pages/fonts-test.ts
index 756a394af..6b1488a0e 100644
--- a/tests/app/pages/fonts-test.ts
+++ b/tests/app/pages/fonts-test.ts
@@ -1,5 +1,6 @@
 import * as stack from "ui/layouts/stack-layout";
 import * as style from "ui/styling/style";
+import {unsetValue} from "ui/core/view";
 
 export function buttonTap(args) {
     var stackLayout = <stack.StackLayout>args.object.parent;
diff --git a/tests/app/pages/page13.ts b/tests/app/pages/page13.ts
index 49ad53e0a..e22832a13 100644
--- a/tests/app/pages/page13.ts
+++ b/tests/app/pages/page13.ts
@@ -23,7 +23,7 @@ export function createPage() {
     return page;
 }
 
-function addButton(layout: layout.StackLayout, text: "left" | "center" | "middle" | "right" | "stretch") {
+function addButton(layout: layout.StackLayout, text: "left" | "center" | "right" | "stretch") {
     var btn = new btns.Button();
     btn.text = text;
     btn.horizontalAlignment = text;
diff --git a/tests/app/pages/page15.ts b/tests/app/pages/page15.ts
index 305f6404e..11f44f0a7 100644
--- a/tests/app/pages/page15.ts
+++ b/tests/app/pages/page15.ts
@@ -17,7 +17,7 @@ export function createPage() {
 
     var btn2 = new buttonModule.Button();
     btn2.horizontalAlignment = "center";
-    btn2.verticalAlignment = "center";
+    btn2.verticalAlignment = "middle";
     btn2.text = "center, center";
 
     var btn3 = new buttonModule.Button();
diff --git a/tests/app/pages/page7.ts b/tests/app/pages/page7.ts
index 17d0c0743..797f55705 100644
--- a/tests/app/pages/page7.ts
+++ b/tests/app/pages/page7.ts
@@ -1,5 +1,6 @@
 import * as pages from "ui/page";
 import * as buttons from "ui/button";
+import { VerticalAlignment } from "ui/core/view";
 
 export function createPage() {
     var page = new pages.Page();
@@ -9,7 +10,7 @@ export function createPage() {
     btn.height = 60;
     btn.text = "test";
 
-    var vAligns = ["stretch", "top", "center", "bottom"];
+    var vAligns: VerticalAlignment[] = ["stretch", "top", "middle", "bottom"];
     //var hAligns = ["stretch", "left", "center", "right"];
     var count = 0;
     btn.on(buttons.Button.tapEvent, function () {
diff --git a/tests/app/ui/animation/css-animation-tests.ts b/tests/app/ui/animation/css-animation-tests.ts
index 59383f591..1d373dda6 100644
--- a/tests/app/ui/animation/css-animation-tests.ts
+++ b/tests/app/ui/animation/css-animation-tests.ts
@@ -308,7 +308,7 @@ export function test_AnimationCurveInKeyframes() {
     TKUnit.assertEqual(animation.keyframes[0].curve, enums.AnimationCurve.linear);
     TKUnit.assertEqual(animation.keyframes[1].curve, undefined);
     TKUnit.assertEqual(animation.keyframes[1].curve, undefined);
-    let realAnimation = keyframeAnimation.KeyframeAnimation.keyframeAnimationFromInfo(animation, 2);
+    let realAnimation = keyframeAnimation.KeyframeAnimation.keyframeAnimationFromInfo(animation);
     TKUnit.assertEqual(realAnimation.animations[1].curve, enums.AnimationCurve.linear);
     TKUnit.assertEqual(realAnimation.animations[2].curve, enums.AnimationCurve.easeIn);
 }
\ No newline at end of file
diff --git a/tests/app/ui/bindable-tests.ts b/tests/app/ui/bindable-tests.ts
index b075af6e0..6c0d12ae1 100644
--- a/tests/app/ui/bindable-tests.ts
+++ b/tests/app/ui/bindable-tests.ts
@@ -28,7 +28,6 @@ export var test_Bindable_Members = function () {
     var obj = new bindable.Bindable();
     TKUnit.assert(types.isDefined(obj.bind), "Bindable.bind not defined");
     TKUnit.assert(types.isDefined(obj.unbind), "Bindable.unbind not defined");
-    TKUnit.assert(types.isDefined(obj._updateTwoWayBinding), "Bindable.updateTwoWayBinding not defined");
 }
 
 export var test_Bindable_Bind_ToTarget_OneWay = function () {
@@ -155,7 +154,6 @@ export var test_bindingContext_ValueSource_IsInherited = function () {
         var context = {};
         views[0].bindingContext = context;
         TKUnit.assert(views[1].bindingContext === context, "bindingContext not inherited.");
-        TKUnit.assert(views[1]._getValueSource(bindable.Bindable.bindingContextProperty) === dependencyObservableModule.ValueSource.Inherited, "bindingContext should be propagated as Inherited.");
     }
 
     helper.do_PageTest_WithButton(test);
diff --git a/tests/app/ui/button/button-tests.ts b/tests/app/ui/button/button-tests.ts
index 18ccc7326..0814da9bc 100644
--- a/tests/app/ui/button/button-tests.ts
+++ b/tests/app/ui/button/button-tests.ts
@@ -235,7 +235,7 @@ var _testNativeBackgroundColorFromLocal = function (views: Array<viewModule.View
     TKUnit.assert(actualResult === expectedBackgroundColorHex, "Actual: " + actualResult + "; Expected: " + expectedBackgroundColorHex);
 }
 
-var expectedTextAlignment = enums.TextAlignment.right;
+var expectedTextAlignment: "right" = "right";
 export var testLocalTextAlignmentFromCss = function () {
     helper.buildUIAndRunTest(_createButtonFunc(), function (views: Array<viewModule.View>) {
         var view = <buttonModule.Button>views[0];
diff --git a/tests/app/ui/layouts/common-layout-tests.ts b/tests/app/ui/layouts/common-layout-tests.ts
index cac4f2cc5..e732a5f28 100644
--- a/tests/app/ui/layouts/common-layout-tests.ts
+++ b/tests/app/ui/layouts/common-layout-tests.ts
@@ -101,7 +101,7 @@ export function percent_support_children_test(test: testModule.UITest<LayoutBase
     TKUnit.assertEqual(bounds.bottom, 120, "TopLeft layout BOTTOM incorrect");
 
     btn.horizontalAlignment = "center";
-    btn.verticalAlignment = "center";
+    btn.verticalAlignment = "middle";
     test.waitUntilTestElementLayoutIsValid();
 
     bounds = btn._getCurrentLayoutBounds();
diff --git a/tests/app/ui/layouts/flexbox-layout-tests.ts b/tests/app/ui/layouts/flexbox-layout-tests.ts
index 8cf216413..fc37c0f6e 100644
--- a/tests/app/ui/layouts/flexbox-layout-tests.ts
+++ b/tests/app/ui/layouts/flexbox-layout-tests.ts
@@ -10,7 +10,7 @@ import {
 } from "ui/layouts/flexbox-layout";
 // << flexbox-layout-require
 
-import {View, unsetValue} from "ui/core/view";
+import {View, unsetValue, Length} from "ui/core/view";
 import {Label} from "ui/label";
 import * as TKUnit from "../../TKUnit";
 import * as helper from "../helper";
@@ -494,8 +494,8 @@ export const testJustifyContent_flexStart_withParentPadding = test(
     ({root, flexbox, text1, text2, text3}) => {
         isRightOf(text2, text1);
         isRightOf(text3, text2);
-        equal(left(text1), dipToDp(flexbox.style.paddingLeft.value), `Expected ${text1}.left to equal ${flexbox}.paddingLeft`);
-        equal(top(text1), dipToDp(flexbox.style.paddingTop.value), `Expected ${text1}.top to equal ${flexbox}.paddingTop`);
+        equal(left(text1), Length.toDevicePixels(flexbox.style.paddingLeft, 0), `Expected ${text1}.left to equal ${flexbox}.paddingLeft`);
+        equal(top(text1), Length.toDevicePixels(flexbox.style.paddingTop, 0), `Expected ${text1}.top to equal ${flexbox}.paddingTop`);
     }
 );
 
@@ -516,8 +516,8 @@ export const testJustifyContent_flexEnd_withParentPadding = test(
     ({root, flexbox, text1, text2, text3}) => {
         isLeftOf(text2, text3);
         isLeftOf(text1, text2);
-        closeEnough(width(flexbox) - right(text3), dipToDp(flexbox.style.paddingRight.value));
-        closeEnough(top(text3), dipToDp(flexbox.style.paddingTop.value));
+        closeEnough(width(flexbox) - right(text3), Length.toDevicePixels(flexbox.style.paddingRight, 0));
+        closeEnough(top(text3), Length.toDevicePixels(flexbox.style.paddingTop, 0));
     }
 );
 
@@ -544,10 +544,10 @@ export const testJustifyContent_center_withParentPadding = test(
     ({root, flexbox, text1, text2, text3}) => {
         isRightOf(text2, text1);
         isRightOf(text3, text2);
-        let space = width(flexbox) - width(text1) - width(text2) - width(text3) - dipToDp(flexbox.style.paddingLeft.value) - dipToDp(flexbox.style.paddingRight.value);
+        let space = width(flexbox) - width(text1) - width(text2) - width(text3) - Length.toDevicePixels(flexbox.style.paddingLeft, 0) - Length.toDevicePixels(flexbox.style.paddingRight, 0);
         space = space / 2;
-        check(space - 1 <= left(text1) - dipToDp(flexbox.style.paddingLeft.value) && left(text1) - dipToDp(flexbox.style.paddingLeft.value) <= space + 1);
-        check(space - 1 <= width(flexbox) - right(text3) - dipToDp(flexbox.style.paddingRight.value) && width(flexbox) - right(text3) - dipToDp(flexbox.style.paddingRight.value) <= space + 1);
+        check(space - 1 <= left(text1) - Length.toDevicePixels(flexbox.style.paddingLeft, 0) && left(text1) - Length.toDevicePixels(flexbox.style.paddingLeft, 0) <= space + 1);
+        check(space - 1 <= width(flexbox) - right(text3) - Length.toDevicePixels(flexbox.style.paddingRight, 0) && width(flexbox) - right(text3) - Length.toDevicePixels(flexbox.style.paddingRight, 0) <= space + 1);
     }
 );
 
@@ -870,7 +870,7 @@ export const testAlignContent_flexEnd_parentPadding = test(
         isAbove(text1, text3);
         isAbove(text2, text3);
 
-        closeEnough(bottom(text3), height(flexbox) - dipToDp(flexbox.style.paddingBottom.value));
+        closeEnough(bottom(text3), height(flexbox) - Length.toDevicePixels(flexbox.style.paddingBottom, 0));
     }
 );
 
@@ -886,7 +886,7 @@ export const testAlignContent_flexEnd_parentPadding_column = test(
         isLeftOf(text2, text3);
 
         let { bounds1, bounds2 } = comparableBounds(text3, flexbox);
-        closeEnough(bounds1.right, bounds2.right - dipToDp(flexbox.style.paddingRight.value));
+        closeEnough(bounds1.right, bounds2.right - Length.toDevicePixels(flexbox.style.paddingRight, 0));
     }
 );
 
@@ -1249,8 +1249,8 @@ export const testAlignItems_flexEnd_parentPadding = test(
     ({flexbox}) => flexbox.alignItems = AlignItems.FLEX_END,
     ({root, flexbox, text1, text2, text3}) => {
         isRightOf(text2, text1);
-        closeEnough(bottom(text1), height(flexbox) - dipToDp(flexbox.style.paddingBottom.value));
-        closeEnough(bottom(text2), height(flexbox) - dipToDp(flexbox.style.paddingBottom.value));
+        closeEnough(bottom(text1), height(flexbox) - Length.toDevicePixels(flexbox.style.paddingBottom, 0));
+        closeEnough(bottom(text2), height(flexbox) - Length.toDevicePixels(flexbox.style.paddingBottom, 0));
     }
 );
 
@@ -1262,8 +1262,8 @@ export const testAlignItems_flexEnd_parentPadding_column = test(
     },
     ({root, flexbox, text1, text2, text3}) => {
         isBelow(text2, text1);
-        closeEnough(right(text1), width(flexbox) - dipToDp(flexbox.style.paddingRight.value));
-        closeEnough(right(text2), width(flexbox) - dipToDp(flexbox.style.paddingRight.value));
+        closeEnough(right(text1), width(flexbox) - Length.toDevicePixels(flexbox.style.paddingRight, 0));
+        closeEnough(right(text2), width(flexbox) - Length.toDevicePixels(flexbox.style.paddingRight, 0));
     }
 );
 
@@ -1808,7 +1808,7 @@ export const testWrap_parentPadding_horizontal = test(
     ({flexbox, text1, text2, text3}) => {
         isBelow(text2, text1);
         isRightOf(text3, text2);
-        closeEnough(height(flexbox), dipToDp(flexbox.style.paddingTop.value) + dipToDp(flexbox.style.paddingBottom.value) + height(text1) + height(text2));
+        closeEnough(height(flexbox), Length.toDevicePixels(flexbox.style.paddingTop, 0) + Length.toDevicePixels(flexbox.style.paddingBottom, 0) + height(text1) + height(text2));
     }
 );
 
@@ -1826,7 +1826,7 @@ export const testWrap_parentPadding_vertical = test(
     ({flexbox, text1, text2, text3}) => {
         isRightOf(text2, text1);
         isBelow(text3, text2);
-        closeEnough(width(flexbox), dipToDp(flexbox.style.paddingLeft.value) + dipToDp(flexbox.style.paddingRight.value) + width(text1) + width(text2));
+        closeEnough(width(flexbox), Length.toDevicePixels(flexbox.style.paddingLeft, 0) + Length.toDevicePixels(flexbox.style.paddingRight, 0) + width(text1) + width(text2));
     }
 );
 
@@ -1844,7 +1844,7 @@ export const testWrap_childMargin_horizontal = test(
     ({flexbox, text1, text2, text3}) => {
         isBelow(text2, text1);
         isRightOf(text3, text2);
-        closeEnough(height(flexbox), height(text1) + height(text2) + dipToDp(text2.style.marginTop.value) + dipToDp(text2.style.marginBottom.value));
+        closeEnough(height(flexbox), height(text1) + height(text2) + Length.toDevicePixels(text2.style.marginTop, 0) + Length.toDevicePixels(text2.style.marginBottom, 0));
     }
 );
 
@@ -1907,7 +1907,7 @@ export const testWrap_childMargin_vertical = test(
         isRightOf(text2, text1);
         isBelow(text3, text2);
         // dips anyone?
-        closeEnough(width(flexbox), width(text1) + width(text2) + dipToDp(text2.marginLeft.value) + dipToDp(text2.marginRight.value));
+        closeEnough(width(flexbox), width(text1) + width(text2) + Length.toDevicePixels(text2.marginLeft, 0) + Length.toDevicePixels(text2.marginRight, 0));
     }
 );
 
diff --git a/tests/app/ui/layouts/stack-layout-tests.ts b/tests/app/ui/layouts/stack-layout-tests.ts
index 8953f30e5..3ad2c2429 100644
--- a/tests/app/ui/layouts/stack-layout-tests.ts
+++ b/tests/app/ui/layouts/stack-layout-tests.ts
@@ -219,7 +219,7 @@ export class StackLayoutTest extends testModule.UITest<StackLayout> {
         TKUnit.assertEqual(bounds.bottom, 120, "TopLeft layout BOTTOM incorrect");
 
         btn.horizontalAlignment = "center";
-        btn.verticalAlignment = "center";
+        btn.verticalAlignment = "middle";
         this.waitUntilTestElementLayoutIsValid();
 
         bounds = btn._getCurrentLayoutBounds();
@@ -264,7 +264,7 @@ export class StackLayoutTest extends testModule.UITest<StackLayout> {
         TKUnit.assertEqual(bounds.bottom, 120, "TopLeft layout BOTTOM incorrect");
 
         btn.horizontalAlignment = "center";
-        btn.verticalAlignment = "center";
+        btn.verticalAlignment = "middle";
         this.waitUntilTestElementLayoutIsValid();
 
         bounds = btn._getCurrentLayoutBounds();
diff --git a/tests/app/ui/layouts/wrap-layout-tests.ts b/tests/app/ui/layouts/wrap-layout-tests.ts
index 2465b561c..2d94997c4 100644
--- a/tests/app/ui/layouts/wrap-layout-tests.ts
+++ b/tests/app/ui/layouts/wrap-layout-tests.ts
@@ -289,7 +289,7 @@ export class WrapLayoutTest extends testModule.UITest<wrapLayoutModule.WrapLayou
         TKUnit.assertEqual(bounds.bottom, 120, "TopLeft layout BOTTOM incorrect");
 
         btn.horizontalAlignment = "center";
-        btn.verticalAlignment = "center";
+        btn.verticalAlignment = "middle";
         this.waitUntilTestElementLayoutIsValid();
 
         bounds = btn._getCurrentLayoutBounds();
diff --git a/tests/app/ui/list-view/list-view-tests.ts b/tests/app/ui/list-view/list-view-tests.ts
index e286ba02f..13e022cad 100644
--- a/tests/app/ui/list-view/list-view-tests.ts
+++ b/tests/app/ui/list-view/list-view-tests.ts
@@ -57,7 +57,6 @@ export class ListViewTest extends testModule.UITest<listViewModule.ListView> {
         var listView = new listViewModule.ListView();
         // << article-create-listview
 
-        TKUnit.assertEqual(listView.isScrolling, false, "Default listView.isScrolling");
         TKUnit.assert(types.isUndefined(listView.items), "Default listView.items should be undefined");
     }
 
diff --git a/tests/app/ui/styling/style-tests.ts b/tests/app/ui/styling/style-tests.ts
index 2b391db31..bfb8efdf7 100644
--- a/tests/app/ui/styling/style-tests.ts
+++ b/tests/app/ui/styling/style-tests.ts
@@ -609,36 +609,6 @@ function testButtonPressedStateIsRed(btn: buttonModule.Button) {
     TKUnit.assert(btn.style.color === undefined, "Color should not have a value after returned to normal state.");
 }
 
-export function test_styling_converters_are_defined() {
-    TKUnit.assert(types.isDefined(styling.converters), "converters module is not defined");
-    TKUnit.assert(types.isFunction(styling.converters.colorConverter), "colorConverter function is not defined");
-    TKUnit.assert(types.isFunction(styling.converters.fontSizeConverter), "fontSizeConverter function is not defined");
-    TKUnit.assert(types.isFunction(styling.converters.textAlignConverter), "textAlignConverter function is not defined");
-}
-
-export function test_styling_properties_are_defined() {
-    TKUnit.assert(types.isDefined(styling.properties), "properties module is not defined");
-    TKUnit.assert(types.isDefined(styling.properties.backgroundColorProperty), "backgroundColorProperty property is not defined");
-    TKUnit.assert(types.isDefined(styling.properties.colorProperty), "colorProperty property is not defined");
-    TKUnit.assert(types.isDefined(styling.properties.fontSizeProperty), "fontSizeProperty property is not defined");
-    TKUnit.assert(types.isDefined(styling.properties.textAlignmentProperty), "textAlignmentProperty property is not defined");
-
-    TKUnit.assert(types.isFunction(styling.properties.eachInheritableProperty), "properties.eachInheritableProperty function is not defined");
-    TKUnit.assert(types.isFunction(styling.properties.eachProperty), "properties.eachProperty function is not defined");
-    TKUnit.assert(types.isFunction(styling.properties.getPropertyByCssName), "properties.getPropertyByCssName function is not defined");
-    TKUnit.assert(types.isFunction(styling.properties.getPropertyByName), "properties.getPropertyByName function is not defined");
-}
-
-export function test_styling_stylers_are_defined() {
-    TKUnit.assert(types.isFunction(styleModule.registerHandler), "registerHandler function is not defined");
-    TKUnit.assert(types.isFunction(styleModule.StylePropertyChangedHandler), "StylePropertyChangedHandler class is not defined");
-}
-
-export function test_styling_classes_are_defined() {
-    TKUnit.assert(types.isFunction(styling.Style), "Style class is not defined");
-    TKUnit.assert(types.isFunction(styling.Property), "Property class is not defined");
-}
-
 export function test_setInlineStyle_setsLocalValues() {
     var testButton = new buttonModule.Button();
     testButton.text = "Test";
@@ -647,7 +617,7 @@ export function test_setInlineStyle_setsLocalValues() {
 
     helper.buildUIAndRunTest(stack, function (views: Array<viewModule.View>) {
         (<any>testButton)._applyInlineStyle("color: red;");
-        helper.assertViewColor(testButton, "#FF0000", dependencyObservableModule.ValueSource.Local);
+        helper.assertViewColor(testButton, "#FF0000");
     });
 }
 
diff --git a/tests/app/ui/view/view-tests-common.ts b/tests/app/ui/view/view-tests-common.ts
index 1dad165ea..fd5f93841 100644
--- a/tests/app/ui/view/view-tests-common.ts
+++ b/tests/app/ui/view/view-tests-common.ts
@@ -642,8 +642,8 @@ export var testIsVisible = function () {
         TKUnit.assertEqual(lbl.visibility, "collapse");
         TKUnit.assertEqual(lbl.isCollapsed, true);
 
-        lbl.visibility = "collapsed";
-        TKUnit.assertEqual(lbl.visibility, "collapsed");
+        lbl.visibility = "collapse";
+        TKUnit.assertEqual(lbl.visibility, "collapse");
         TKUnit.assertEqual(lbl.isCollapsed, true);
     });
 }
diff --git a/tests/app/xml-declaration/xml-declaration-tests.ts b/tests/app/xml-declaration/xml-declaration-tests.ts
index 32e93bd1a..cc19afbfb 100644
--- a/tests/app/xml-declaration/xml-declaration-tests.ts
+++ b/tests/app/xml-declaration/xml-declaration-tests.ts
@@ -11,12 +11,12 @@ import * as types from "utils/types";
 import * as fs from "file-system";
 import * as observable from "data/observable";
 import * as stackLayoutModule from "ui/layouts/stack-layout";
-import {Label} from "ui/label";
-import {Page} from "ui/page";
-import {Button} from "ui/button";
-import {TabView} from "ui/tab-view";
-import {Observable} from "data/observable";
-import {TemplateView} from "./template-builder-tests/template-view";
+import { Label } from "ui/label";
+import { Page } from "ui/page";
+import { Button } from "ui/button";
+import { TabView } from "ui/tab-view";
+import { Observable } from "data/observable";
+import { TemplateView } from "./template-builder-tests/template-view";
 import * as myCustomControlWithoutXml from "./mymodule/MyControl";
 import * as listViewModule from "ui/list-view";
 import * as helper from "../ui/helper";
@@ -25,6 +25,7 @@ import * as platform from "platform";
 import * as gesturesModule from "ui/gestures";
 import * as segmentedBar from "ui/segmented-bar";
 import { Source } from "utils/debug";
+import { PercentLength } from "ui/core/view";
 
 export function test_load_IsDefined() {
     TKUnit.assertTrue(types.isFunction(builder.load), "ui/builder should have load method!");
@@ -307,8 +308,7 @@ export function test_parse_ShouldSetCanvasAttachedProperties() {
 
 export function test_parse_ShouldParseNumberProperties() {
     var p = <Page>builder.parse("<Page width='100' />");
-    TKUnit.assertEqual(p.width.value, 100);
-    TKUnit.assertEqual(p.width.unit, "dip");
+    TKUnit.assertTrue(PercentLength.equals(p.width, 100));
 };
 
 export function test_parse_ShouldParseBooleanProperties() {
@@ -451,7 +451,7 @@ export function test_parse_ShouldParseSubProperties() {
     p.bindingContext = obj;
     var sw = <switchModule.Switch>p.content;
 
-    TKUnit.assert(sw.visibility === "collapsed", "Expected result: collapsed; Actual result: " + sw.visibility + "; type: " + typeof (sw.visibility));
+    TKUnit.assert(sw.visibility === "collapse", "Expected result: collapsed; Actual result: " + sw.visibility + "; type: " + typeof (sw.visibility));
 };
 
 export function test_parse_ShouldParseBindingToSpecialProperty() {
diff --git a/tns-core-modules/ui/core/view-common.ts b/tns-core-modules/ui/core/view-common.ts
index e9d5ddd5f..e3d512844 100644
--- a/tns-core-modules/ui/core/view-common.ts
+++ b/tns-core-modules/ui/core/view-common.ts
@@ -965,17 +965,17 @@ function updateChildLayoutParams(child: ViewCommon, parent: ViewCommon, density:
     let parentWidthMeasureSize = layout.getMeasureSpecSize(parentWidthMeasureSpec);
     let parentWidthMeasureMode = layout.getMeasureSpecMode(parentWidthMeasureSpec);
     let parentAvailableWidth = parentWidthMeasureMode === layout.UNSPECIFIED ? -1 : parentWidthMeasureSize;
-    style.effectiveWidth = PercentLength.toDevicePixels(style.width, parentAvailableWidth)
-    style.effectiveMarginLeft = PercentLength.toDevicePixels(style.marginLeft, parentAvailableWidth);
-    style.effectiveMarginRight = PercentLength.toDevicePixels(style.marginRight, parentAvailableWidth);
+    style.effectiveWidth = PercentLength.toDevicePixels(style.width, -2, parentAvailableWidth)
+    style.effectiveMarginLeft = PercentLength.toDevicePixels(style.marginLeft, 0, parentAvailableWidth);
+    style.effectiveMarginRight = PercentLength.toDevicePixels(style.marginRight, 0, parentAvailableWidth);
 
     let parentHeightMeasureSpec = parent._currentHeightMeasureSpec;
     let parentHeightMeasureSize = layout.getMeasureSpecSize(parentHeightMeasureSpec);
     let parentHeightMeasureMode = layout.getMeasureSpecMode(parentHeightMeasureSpec);
     let parentAvailableHeight = parentHeightMeasureMode === layout.UNSPECIFIED ? -1 : parentHeightMeasureSize;
-    style.effectiveHeight = PercentLength.toDevicePixels(style.height, parentAvailableHeight);
-    style.effectiveMarginTop = PercentLength.toDevicePixels(style.marginTop, parentAvailableHeight);
-    style.effectiveMarginBottom = PercentLength.toDevicePixels(style.marginBottom, parentAvailableHeight);
+    style.effectiveHeight = PercentLength.toDevicePixels(style.height, -2, parentAvailableHeight);
+    style.effectiveMarginTop = PercentLength.toDevicePixels(style.marginTop, 0, parentAvailableHeight);
+    style.effectiveMarginBottom = PercentLength.toDevicePixels(style.marginBottom, 0, parentAvailableHeight);
 }
 
 function equalsCommon(a: Length, b: Length): boolean;
@@ -1066,7 +1066,7 @@ export namespace PercentLength {
         }
     }
     export const equals: { (a: PercentLength, b: PercentLength): boolean } = equalsCommon;
-    export const toDevicePixels: { (length: PercentLength, parentAvailableWidth: number): number } = toDevicePixelsCommon;
+    export const toDevicePixels: { (length: PercentLength, auto: number, parentAvailableWidth: number): number } = toDevicePixelsCommon;
 }
 
 export type Length = "auto" | number | {
diff --git a/tns-core-modules/ui/core/view.d.ts b/tns-core-modules/ui/core/view.d.ts
index 58bbb1ad7..5fbfef5f8 100644
--- a/tns-core-modules/ui/core/view.d.ts
+++ b/tns-core-modules/ui/core/view.d.ts
@@ -102,6 +102,12 @@ declare module "ui/core/view" {
     export namespace Length {
         export function parse(text: string): Length;
         export function equals(a: Length, b: Length): boolean;
+        /**
+         * Converts Length unit to device pixels.
+         * @param length The PercentLength to convert.
+         * @param auto Value to use for conversion of "auto".
+         */
+        export function toDevicePixels(length: PercentLength, auto: number): number;
     }
 
     export type PercentLength = "auto" | number | {
@@ -111,6 +117,13 @@ declare module "ui/core/view" {
     export namespace PercentLength {
         export function parse(text: string): PercentLength;
         export function equals(a: PercentLength, b: PercentLength): boolean;
+        /**
+         * Converts PercentLength unit to device pixels.
+         * @param length The PercentLength to convert.
+         * @param auto Value to use for conversion of "auto".
+         * @param parentAvailableWidth Value to use as base when converting percent unit.
+         */
+        export function toDevicePixels(length: PercentLength, auto: number, parentAvailableWidth: number): number;
     }
 
     /**
@@ -604,15 +617,15 @@ declare module "ui/core/view" {
         // _onStylePropertyChanged(property: dependencyObservable.Property): void;
         //@endprivate
 
-        // /**
-        //  * __Obsolete:__ There is a new property system that does not rely on _getValue.
-        //  */
-        // public _getValue(property: any): never;
+        /**
+         * __Obsolete:__ There is a new property system that does not rely on _getValue.
+         */
+        public _getValue(property: any): never;
 
-        // /**
-        //  * __Obsolete:__ There is a new property system that does not rely on _setValue.
-        //  */
-        // public _setValue(property: any, value: any): never;
+        /**
+         * __Obsolete:__ There is a new property system that does not rely on _setValue.
+         */
+        public _setValue(property: any, value: any): never;
     }
 
     /**
diff --git a/tns-core-modules/ui/definitions.d.ts b/tns-core-modules/ui/definitions.d.ts
index 12aac9ac3..64d592831 100644
--- a/tns-core-modules/ui/definitions.d.ts
+++ b/tns-core-modules/ui/definitions.d.ts
@@ -93,7 +93,7 @@ declare module "ui/core/view-base" {
         public onLoaded(): void;
         public onUnloaded(): void;
 
-        public bind(options: BindingOptions, source: Object): void;
+        public bind(options: BindingOptions, source?: Object): void;
         public unbind(property: string): void;
 
         public requestLayout(): void;