test(AngularApp): update demo tests (#333)

* test(AngularApp): update demo tests

* refactor: remove unused variable

Author: Vasil Chimev

demo/AngularApp/e2e/sample.e2e-spec.ts

@@ -0,0 +1,71 @@
+import { AppiumDriver, createDriver, SearchOptions } from "nativescript-dev-appium";
+import { assert } from "chai";
+
+describe("sample scenario", () => {
+    let driver: AppiumDriver;
+
+    before(async () => {
+        driver = await createDriver();
+    });
+
+    beforeEach(async function () {
+        try {
+            const items = await getItems();
+        } catch (err) {
+            try {
+                const lblNinjas = await driver.findElementByText("Ninjas!");
+            }
+            catch (err) {
+                console.log("Navigating to ninjas page ...");
+                await driver.navBack();
+            }
+            console.log("Navigating to main page ...");
+            await driver.navBack();
+        }
+    });
+
+    afterEach(async function () {
+        if (this.currentTest.state === "failed") {
+            await driver.logPageSource(this.currentTest.title);
+            await driver.logScreenshot(this.currentTest.title);
+        }
+    });
+
+    after(async () => {
+        await driver.quit();
+        console.log("Quit driver!");
+    });
+
+    it("should navigate to a ninja", async () => {
+        const btnNinjas = await driver.findElementByText("Ninjas");
+        await btnNinjas.click();
+
+        const itemMichaelangelo = await driver.findElementByText("Michaelangelo");
+        await itemMichaelangelo.click();
+
+        const lblMichaelangelo = await driver.findElementByText("Ninja Michaelangelo!");
+        await lblMichaelangelo.isDisplayed();
+
+        const btnBackToNinjas = await driver.findElementByText("Back to ninjas");
+        await btnBackToNinjas.click();
+
+        const btnGoBackHome = await driver.findElementByText("Go back home");
+        await btnGoBackHome.click();
+    });
+
+    const styleTypes = {
+        "inline": "styleInline",
+        "page": "stylePage",
+        "app": "styleApp"
+    };
+
+    for (let styleType in styleTypes) {
+        it(`should find an element with ${styleType} style applied`, async function () {
+            const element = await driver.findElementByText(styleTypes[styleType]);
+            const result = await driver.compareElement(element, "style");
+            assert.isTrue(result);
+        });
+    }
+
+    const getItems = async () => { return driver.isAndroid ? await driver.findElementsByText("(Android)") : await driver.findElementsByText("(ios)"); }
+});