Add ui-test file

apps/tests/ui-test.ts

@@ -0,0 +1,82 @@
+import pageModule = require("ui/page");
+import navHelper = require("./ui/helper");
+import viewModule = require("ui/core/view");
+import trace = require("trace");
+import TKUnit = require("./TKUnit");
+
+export class UITest<T extends viewModule.View> implements trace.TraceWriter {
+    
+    private _testPage: pageModule.Page;
+    private _testView: T;
+    private _errorMessage;
+
+    public get errorMessage(): string {
+        return this._errorMessage;
+    }
+
+    public get testPage(): pageModule.Page {
+        return this._testPage;
+    }
+
+    public get testView(): T {
+        return this._testView;
+    }
+
+    public waitUntilTestElementIsLoaded(timeoutSec?: number): void {
+        TKUnit.waitUntilReady(() => {
+            return this.testView.isLoaded;
+        }, timeoutSec || 1);
+    }
+
+    public waitUntilTestElementLayoutIsValid(timeoutSec?: number): void {
+        TKUnit.waitUntilReady(() => {
+            return this.testView.isLayoutValid;
+        }, timeoutSec || 1);
+    }
+
+    public create(): T {
+        throw new Error(this + " should implement Create method.");
+    }
+
+    public setUpModule(): void {
+        
+        var pageFactory = () => {
+            var page = new pageModule.Page();
+            this._testPage = page;
+            return page;
+        };
+
+        trace.addWriter(this);
+        trace.enable();
+        navHelper.navigate(pageFactory);
+    }
+
+    public tearDownModule() {
+        this._testPage = null;
+        this._testView = null;
+        trace.removeWriter(this);
+        navHelper.goBack();
+    }
+
+    public setUp() {        
+        this._testView = this.create();
+        this._testPage.content = this._testView;
+    }
+
+    public tearDown() {
+        this._testPage.content = null;
+        this._testPage.bindingContext = null;
+        this._testPage.css = "";
+        this._errorMessage = undefined;
+    }
+
+    public write(message: any, category: string, type?: number): void {
+        if (category === trace.categories.Error) {
+            this._errorMessage = message;
+        }
+    }
+}
+
+export function createTestCase(): UITest<viewModule.View> {
+    return null;
+}