ref provider name - add test

src/app/app.module.ts

@@ -61,7 +61,7 @@ import { ProfileProvider } from '../providers/profile/profile';
 import { RateProvider } from '../providers/rate/rate';
 import { ScanProvider } from '../providers/scan/scan';
 import { WalletProvider } from '../providers/wallet/wallet';
-import { LatestRelease } from '../providers/latestRelease/latestRelease';
+import { LatestReleaseProvider } from '../providers/latestRelease/latestRelease';
 
 export function createTranslateLoader(http: Http) {
   return new TranslatePoHttpLoader(http, 'assets/i18n', '.po');
@@ -106,7 +106,7 @@ let providers: any = [
   SocialSharing,
   Toast,
   WalletProvider,
-  LatestRelease,
+  LatestReleaseProvider,
   {
     provide: ErrorHandler,
     useClass: IonicErrorHandler

src/mocks/latestRelease.ts

@@ -0,0 +1,36 @@
+export let LatestReleaseProviderStub = {
+  checkLatestRelease(currentVersion: string, latestVersion: string) {
+    if (!currentVersion || !latestVersion) return this.requestLatestRelease();
+
+    if (!verifyTagFormat(currentVersion))
+      return ('Cannot verify the format of version tag: ' + currentVersion);
+    if (!verifyTagFormat(latestVersion))
+      return ('Cannot verify the format of latest release tag: ' + latestVersion);
+
+    var current = formatTagNumber(currentVersion);
+    var latest = formatTagNumber(latestVersion);
+
+    if (latest.major < current.major || (latest.major == current.major && latest.minor <= current.minor))
+      return false;
+    else
+      return true;
+
+    function verifyTagFormat(tag: string) {
+      var regex = /^v?\d+\.\d+\.\d+$/i;
+      return regex.exec(tag);
+    };
+
+    function formatTagNumber(tag: string) {
+      var formattedNumber = tag.replace(/^v/i, '').split('.');
+      return {
+        major: +formattedNumber[0],
+        minor: +formattedNumber[1],
+        patch: +formattedNumber[2]
+      };
+    };
+  },
+
+  requestLatestRelease() {
+    return '3.3.3';
+  }
+}

src/pages/home/home.ts

@@ -1,7 +1,7 @@
 import { Component } from '@angular/core';
 import { NavController } from 'ionic-angular';
 import { ProfileProvider } from '../../providers/profile/profile';
-import { LatestRelease } from '../../providers/latestRelease/latestRelease';
+import { LatestReleaseProvider } from '../../providers/latestRelease/latestRelease';
 
 @Component({
   selector: 'page-home',
@@ -13,7 +13,7 @@ export class HomePage {
   constructor(
     public navCtrl: NavController,
     private profile: ProfileProvider,
-    private latestRelease: LatestRelease,
+    private latestRelease: LatestReleaseProvider,
   ) {
   }
 

src/providers/latestRelease/latestRelease.spec.ts

@@ -0,0 +1,45 @@
+import { LatestReleaseProviderStub } from '../../mocks/latestRelease'
+
+describe('Latest Release Provider', () => {
+  var currentVersion: string;
+  var latestVersion: string;
+
+  beforeEach(() => {
+    // Using the mock => 3.3.3
+    latestVersion = LatestReleaseProviderStub.checkLatestRelease(null, null);
+  });
+
+  it('should check successfully the latest release of the app', () => {
+    expect(latestVersion).toBeDefined();
+  });
+
+  it('should check unsuccessfully the current release format of the app', () => {
+    const result = LatestReleaseProviderStub.checkLatestRelease('V.3.3.3', '3.3.3');
+    expect(result).toMatch('Cannot');
+    expect(result).toMatch('version tag');
+  });
+
+  it('should check unsuccessfully the latest release format of the app', () => {
+    const result = LatestReleaseProviderStub.checkLatestRelease('3.3.3', 'V.3.3.3');
+    expect(result).toMatch('Cannot');
+    expect(result).toMatch('release tag');
+  });
+
+  it('should compare the current and latest version of the app with the same value', () => {
+    currentVersion = '3.3.3';
+    const result = LatestReleaseProviderStub.checkLatestRelease(currentVersion, latestVersion);
+    expect(result).toBeFalsy();
+  });
+
+  it('there should be a new version available', () => {
+    currentVersion = '3.2.3';
+    const result = LatestReleaseProviderStub.checkLatestRelease(currentVersion, latestVersion);
+    expect(result).toBeTruthy();
+  });
+
+  it('there should not be a new version available', () => {
+    currentVersion = '3.3.2';
+    const result = LatestReleaseProviderStub.checkLatestRelease(currentVersion, latestVersion);
+    expect(result).toBeFalsy();
+  });
+});

src/providers/latestRelease/latestRelease.ts

@@ -5,7 +5,7 @@ import 'rxjs/add/operator/toPromise';
 import { AppProvider } from '../../providers/app/app';
 
 @Injectable()
-export class LatestRelease {
+export class LatestReleaseProvider {
   private LATEST_RELEASE_URL: string;
   private appVersion: string;