Add tests to `home-logo` component

app/assets/javascripts/discourse/templates/components/home-logo.hbs

@@ -1,7 +1,7 @@
 <a href="{{unbound linkUrl}}" data-auto-route="true">
   {{#if showSmallLogo}}
     {{#if smallLogoUrl}}
-      <img class="logo-small" src="{{unbound smallLogoUrl}}" width="33" height="33">
+      <img class="logo-small" src="{{unbound smallLogoUrl}}" width="33" height="33" alt="{{unbound title}}">
     {{else}}
       <i class="fa fa-home"></i>
     {{/if}}

test/javascripts/components/home-logo-test.js.es6

@@ -0,0 +1,96 @@
+import componentTest from 'helpers/component-test';
+
+moduleForComponent('home-logo', {integration: true});
+
+const bigLogo = '/images/d-logo-sketch.png?test';
+const smallLogo = '/images/d-logo-sketch-small.png?test';
+const mobileLogo = '/images/d-logo-sketch.png?mobile';
+const title = "Cool Forum";
+
+componentTest('basics', {
+  template: '{{home-logo minimized=minimized}}',
+  setup() {
+    this.siteSettings.logo_url = bigLogo;
+    this.siteSettings.logo_small_url= smallLogo;
+    this.siteSettings.title = title;
+    this.set('minimized', false);
+  },
+
+  test(assert) {
+    assert.ok(this.$('a[data-auto-route]').length === 1);
+
+    assert.ok(this.$('img#site-logo.logo-big').length === 1);
+    assert.equal(this.$('#site-logo').attr('src'), bigLogo);
+    assert.equal(this.$('#site-logo').attr('alt'), title);
+
+    this.set('minimized', true);
+    andThen(() => {
+      assert.ok(this.$('img.logo-small').length === 1);
+      assert.equal(this.$('img.logo-small').attr('src'), smallLogo);
+      assert.equal(this.$('img.logo-small').attr('alt'), title);
+    });
+  }
+});
+
+componentTest('no logo', {
+  template: '{{home-logo minimized=minimized}}',
+  setup() {
+    this.siteSettings.logo_url = '';
+    this.siteSettings.logo_small_url = '';
+    this.siteSettings.title = title;
+    this.set('minimized', false);
+  },
+
+  test(assert) {
+    assert.ok(this.$('a[data-auto-route]').length === 1);
+
+    assert.ok(this.$('h2#site-text-logo.text-logo').length === 1);
+    assert.equal(this.$('#site-text-logo').text(), title);
+
+    this.set('minimized', true);
+    andThen(() => {
+      assert.ok(this.$('i.fa-home').length === 1);
+    });
+  }
+});
+
+componentTest('mobile logo', {
+  template: "{{home-logo minimized=minimized}}",
+  setup() {
+    this.siteSettings.mobile_logo_url = mobileLogo;
+    this.siteSettings.logo_small_url= smallLogo;
+    this.set('minimized', true);
+    this.site.mobileView = true;
+  },
+
+  test(assert) {
+    assert.ok(this.$('img#site-logo.logo-big').length === 1);
+    assert.equal(this.$('#site-logo').attr('src'), mobileLogo);
+
+    this.set('minimized', true);
+    andThen(() => {
+      assert.equal(this.$('#site-logo').attr('src'), mobileLogo);
+    });
+  }
+});
+
+componentTest('mobile without logo', {
+  template: "{{home-logo minimized=minimized}}",
+  setup() {
+    this.set('minimized', true);
+    this.siteSettings.logo_url = bigLogo;
+    this.site.mobileView = true;
+  },
+
+  test(assert) {
+    assert.ok(this.$('img#site-logo.logo-big').length === 1);
+    assert.equal(this.$('#site-logo').attr('src'), bigLogo);
+  }
+});
+
+componentTest("changing url", {
+  template: '{{home-logo targetUrl="https://www.discourse.org"}}',
+  test(assert) {
+    assert.equal(this.$('a').attr('href'), 'https://www.discourse.org');
+  }
+});

test/javascripts/helpers/component-test.js.es6

@@ -7,10 +7,12 @@ export default function(name, opts) {
 
   test(name, function(assert) {
     const appEvents = AppEvents.create();
+    this.site = Discourse.Site.current();
+
     this.container.register('site-settings:main', Discourse.SiteSettings, { instantiate: false });
     this.container.register('app-events:main', appEvents, { instantiate: false });
     this.container.register('capabilities:main', Ember.Object);
-    this.container.register('site:main', Discourse.Site.current(), { instantiate: false });
+    this.container.register('site:main', this.site, { instantiate: false });
     this.container.injection('component', 'siteSettings', 'site-settings:main');
     this.container.injection('component', 'appEvents', 'app-events:main');
     this.container.injection('component', 'capabilities', 'capabilities:main');