Add javascript unit tests for Build

Move comments to the correct location

Remove array extension usage

Move build options to fixture to match view

3 files changed, 239 insertions, 8 deletions

diff --git a/app/assets/javascripts/build.js b/app/assets/javascripts/build.js
index 54fed3dd573..3d284e5846f 100644
--- a/app/assets/javascripts/build.js
+++ b/app/assets/javascripts/build.js
@@ -37,6 +37,7 @@
         this.initScrollButtonAffix();
       }
       if (this.buildStatus === "running" || this.buildStatus === "pending") {
+        // Bind autoscroll button to follow build output
         $('#autoscroll-button').on('click', function() {
           var state;
           state = $(this).data("state");
@@ -47,20 +48,15 @@
             $(this).data("state", "enabled");
             return $(this).text("Disable autoscroll");
           }
-        //
-        // Bind autoscroll button to follow build output
-        //
         });
         Build.interval = setInterval((function(_this) {
+          // Check for new build output if user still watching build page
+          // Only valid for runnig build when output changes during time
           return function() {
-            if (window.location.href.split("#").first() === _this.pageUrl) {
+            if (_this.location() === _this.pageUrl) {
               return _this.getBuildTrace();
             }
           };
-        //
-        // Check for new build output if user still watching build page
-        // Only valid for runnig build when output changes during time
-        //
         })(this), 4000);
       }
     }
@@ -79,6 +75,10 @@
       this.$document.off('scroll.translateSidebar').on('scroll.translateSidebar', this.translateSidebar.bind(this));
     };
 
+    Build.prototype.location = function() {
+      return window.location.href.split("#")[0];
+    };
+
     Build.prototype.getInitialBuildTrace = function() {
       var removeRefreshStatuses = ['success', 'failed', 'canceled', 'skipped']
 
diff --git a/spec/javascripts/build_spec.js.es6 b/spec/javascripts/build_spec.js.es6
new file mode 100644
index 00000000000..44485c7745c
--- /dev/null
+++ b/spec/javascripts/build_spec.js.es6
@@ -0,0 +1,174 @@
+/* eslint-disable */
+//= require build
+//= require breakpoints
+//= require jquery.nicescroll
+//= require turbolinks
+
+(() => {
+  describe('Build', () => {
+    fixture.preload('build.html');
+
+    beforeEach(function() {
+      fixture.load('build.html');
+      spyOn($, 'ajax');
+    });
+
+    describe('constructor', () => {
+      beforeEach(function() {
+        jasmine.clock().install();
+      });
+
+      afterEach(() => {
+        jasmine.clock().uninstall();
+      });
+
+      describe('setup', function() {
+        beforeEach(function() {
+          this.build = new Build();
+        });
+
+        it('copies build options', function() {
+          expect(this.build.pageUrl).toBe('http://example.com/root/test-build/builds/2');
+          expect(this.build.buildUrl).toBe('http://example.com/root/test-build/builds/2.json');
+          expect(this.build.buildStatus).toBe('passed');
+          expect(this.build.buildStage).toBe('test');
+          expect(this.build.state).toBe('buildstate');
+        });
+
+        it('only shows the jobs matching the current stage', function() {
+          expect($('.build-job[data-stage="build"]').is(':visible')).toBe(false);
+          expect($('.build-job[data-stage="test"]').is(':visible')).toBe(true);
+          expect($('.build-job[data-stage="deploy"]').is(':visible')).toBe(false);
+        });
+
+        it('selects the current stage in the build dropdown menu', function() {
+          expect($('.stage-selection').text()).toBe('test');
+        });
+
+        it('updates the jobs when the build dropdown changes', function() {
+          $('.stage-item:contains("build")').click();
+
+          expect($('.stage-selection').text()).toBe('build');
+          expect($('.build-job[data-stage="build"]').is(':visible')).toBe(true);
+          expect($('.build-job[data-stage="test"]').is(':visible')).toBe(false);
+          expect($('.build-job[data-stage="deploy"]').is(':visible')).toBe(false);
+        });
+      });
+
+      describe('initial build trace', function() {
+        beforeEach(function() {
+          new Build();
+        });
+
+        it('displays the initial build trace', function() {
+          expect($.ajax.calls.count()).toBe(1);
+          const [{url, dataType, success, context}] = $.ajax.calls.argsFor(0);
+          expect(url).toBe('http://example.com/root/test-build/builds/2.json');
+          expect(dataType).toBe('json');
+          expect(success).toEqual(jasmine.any(Function));
+
+          success.call(context, {trace_html: '<span>Example</span>', status: 'running'});
+
+          expect($('#build-trace .js-build-output').text()).toMatch(/Example/);
+        });
+
+        it('removes the spinner', function() {
+          const [{success, context}] = $.ajax.calls.argsFor(0);
+          success.call(context, {trace_html: '<span>Example</span>', status: 'success'});
+
+          expect($('.js-build-refresh').length).toBe(0);
+        });
+      });
+
+      describe('running build', function() {
+        beforeEach(function() {
+          $('.js-build-options').data('buildStatus', 'running');
+          this.build = new Build();
+          spyOn(this.build, 'location')
+            .and.returnValue('http://example.com/root/test-build/builds/2');
+        });
+
+        it('updates the build trace on an interval', function() {
+          jasmine.clock().tick(4001);
+
+          expect($.ajax.calls.count()).toBe(2);
+          let [{url, dataType, success, context}] = $.ajax.calls.argsFor(1);
+          expect(url).toBe(
+            'http://example.com/root/test-build/builds/2/trace.json?state=buildstate'
+          );
+          expect(dataType).toBe('json');
+          expect(success).toEqual(jasmine.any(Function));
+
+          success.call(context, {
+            html: '<span>Update<span>',
+            status: 'running',
+            state: 'newstate',
+            append: true
+          });
+
+          expect($('#build-trace .js-build-output').text()).toMatch(/Update/);
+          expect(this.build.state).toBe('newstate');
+
+          jasmine.clock().tick(4001);
+
+          expect($.ajax.calls.count()).toBe(3);
+          [{url, dataType, success, context}] = $.ajax.calls.argsFor(2);
+          expect(url).toBe(
+            'http://example.com/root/test-build/builds/2/trace.json?state=newstate'
+          );
+          expect(dataType).toBe('json');
+          expect(success).toEqual(jasmine.any(Function));
+
+          success.call(context, {
+            html: '<span>More</span>',
+            status: 'running',
+            state: 'finalstate',
+            append: true
+          });
+
+          expect($('#build-trace .js-build-output').text()).toMatch(/UpdateMore/);
+          expect(this.build.state).toBe('finalstate');
+        });
+
+        it('replaces the entire build trace', function() {
+          jasmine.clock().tick(4001);
+          let [{success, context}] = $.ajax.calls.argsFor(1);
+          success.call(context, {
+            html: '<span>Update</span>',
+            status: 'running',
+            append: true
+          });
+
+          expect($('#build-trace .js-build-output').text()).toMatch(/Update/);
+
+          jasmine.clock().tick(4001);
+          [{success, context}] = $.ajax.calls.argsFor(2);
+          success.call(context, {
+            html: '<span>Different</span>',
+            status: 'running',
+            append: false
+          });
+
+          expect($('#build-trace .js-build-output').text()).not.toMatch(/Update/);
+          expect($('#build-trace .js-build-output').text()).toMatch(/Different/);
+        });
+
+        it('reloads the page when the build is done', function() {
+          spyOn(Turbolinks, 'visit');
+
+          jasmine.clock().tick(4001);
+          let [{success, context}] = $.ajax.calls.argsFor(1);
+          success.call(context, {
+            html: '<span>Final</span>',
+            status: 'passed',
+            append: true
+          });
+
+          expect(Turbolinks.visit).toHaveBeenCalledWith(
+            'http://example.com/root/test-build/builds/2'
+          );
+        });
+      });
+    });
+  });
+})();
diff --git a/spec/javascripts/fixtures/build.html.haml b/spec/javascripts/fixtures/build.html.haml
new file mode 100644
index 00000000000..a2bc81c6be7
--- /dev/null
+++ b/spec/javascripts/fixtures/build.html.haml
@@ -0,0 +1,57 @@
+.build-page
+  .prepend-top-default
+    .autoscroll-container
+      %button.btn.btn-success.btn-sm#autoscroll-button{:type => "button", :data => {:state => 'disabled'}} enable autoscroll
+    #js-build-scroll.scroll-controls
+      %a.btn{href: '#build-trace'}
+        %i.fa.fa-angle-up
+      %a.btn{href: '#down-build-trace'}
+        %i.fa.fa-angle-down
+    %pre.build-trace#build-trace
+      %code.bash.js-build-output
+      %i.fa.fa-refresh.fa-spin.js-build-refresh
+
+%aside.right-sidebar.right-sidebar-expanded.build-sidebar.js-build-sidebar
+  .block.build-sidebar-header.visible-xs-block.visible-sm-block.append-bottom-default
+    Build
+    %strong #1
+    %a.gutter-toggle.pull-right.js-sidebar-build-toggle{ href: "#" }
+      %i.fa.fa-angle-double-right
+  .blocks-container
+    .dropdown.build-dropdown
+      .title Stage
+      %button.dropdown-menu-toggle{type: 'button', 'data-toggle' => 'dropdown'}
+        %span.stage-selection More
+        %i.fa.fa-caret-down
+      %ul.dropdown-menu
+        %li
+          %a.stage-item build
+        %li
+          %a.stage-item test
+        %li
+          %a.stage-item deploy
+  .builds-container
+    .build-job{data: {stage: 'build'}}
+      %a{href: 'http://example.com/root/test-build/builds/1'}
+        %i.fa.fa-check
+        %i.fa.fa-check-circle-o
+        %span
+          Setup
+    .build-job{data: {stage: 'test'}}
+      %a{href: 'http://example.com/root/test-build/builds/2'}
+        %i.fa.fa-check
+        %i.fa.fa-check-circle-o
+        %span
+          Tests
+    .build-job{data: {stage: 'deploy'}}
+      %a{href: 'http://example.com/root/test-build/builds/3'}
+        %i.fa.fa-check
+        %i.fa.fa-check-circle-o
+        %span
+          Deploy
+
+.js-build-options{ data: { page_url: 'http://example.com/root/test-build/builds/2',
+  build_url: 'http://example.com/root/test-build/builds/2.json',
+  build_status: 'passed',
+  build_stage: 'test',
+  state1: 'buildstate' }}