add a unit test for branch-row

tests/unit/components/branch-row.coffee

@@ -0,0 +1,51 @@
+`import { test, moduleForComponent } from 'ember-qunit'`
+
+moduleForComponent 'branch-row', 'BranchRowComponent', {
+  # specify the other units that are required for this test
+  needs: ['helper:format-time', 'helper:format-duration', 'helper:format-sha', 'component:status-icon', 'component:request-icon']
+}
+
+test 'it renders', ->
+
+  attributes = {
+    name: "local-test",
+    repository: {
+      id: 13661,
+      slug: "meatballhat/yolo-octo-adventure",
+      default_branch: {
+        name: "master",
+        last_build: {
+          id: 434835,
+          number: "1086",
+          state: "passed",
+          duration: 11,
+          event_type: "push",
+          previous_state: "passed",
+          started_at: "2015-08-24T21:34:22Z",
+          finished_at: "2015-08-24T21:35:14Z",
+          commit: {
+            sha: "0e9d8ebc78d2192cc599580751763a5dd6be0ccd",
+            committer: {
+              name: "Dan Buch",
+              avatar_url: "https://0.gravatar.com/avatar/563fd372b4d51781853bc85147f06a36"
+            },
+            author: {
+              name: "Dan Buch",
+              avatar_url: "https://0.gravatar.com/avatar/563fd372b4d51781853bc85147f06a36"
+            }
+          }
+        }
+      }
+    }
+  }
+
+
+  component = @subject(repo: attributes)
+
+  @append()
+
+  ok component.$().hasClass('passed'), 'component should have state class (passed)'
+  equal component.$('.row-name').text().trim(), 'master', 'should display correct branch name'
+  equal component.$('.row-request').text().trim(), '#1086 passed', 'should display build number and state'
+  equal component.$('.row-commiter').text().trim(), 'Dan Buch', 'should display correct commiter name'
+  equal component.$('.row-commit').text().trim(), '0e9d8eb', 'should display correct commit sha'