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diff --git a/spec/javascripts/vue_shared/components/commit_spec.js b/spec/javascripts/vue_shared/components/commit_spec.js
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+++ b/spec/javascripts/vue_shared/components/commit_spec.js
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+import Vue from 'vue';
+import commitComp from '~/vue_shared/components/commit';
+
+describe('Commit component', () => {
+  let props;
+  let component;
+  let CommitComponent;
+
+  beforeEach(() => {
+    CommitComponent = Vue.extend(commitComp);
+  });
+
+  it('should render a code-fork icon if it does not represent a tag', () => {
+    component = new CommitComponent({
+      propsData: {
+        tag: false,
+        commitRef: {
+          name: 'master',
+          ref_url: 'http://localhost/namespace2/gitlabhq/tree/master',
+        },
+        commitUrl: 'https://gitlab.com/gitlab-org/gitlab-ce/commit/b7836eddf62d663c665769e1b0960197fd215067',
+        shortSha: 'b7836edd',
+        title: 'Commit message',
+        author: {
+          avatar_url: 'https://gitlab.com/uploads/user/avatar/300478/avatar.png',
+          web_url: 'https://gitlab.com/jschatz1',
+          username: 'jschatz1',
+        },
+      },
+    }).$mount();
+
+    expect(component.$el.querySelector('.icon-container i').classList).toContain('fa-code-fork');
+  });
+
+  describe('Given all the props', () => {
+    beforeEach(() => {
+      props = {
+        tag: true,
+        commitRef: {
+          name: 'master',
+          ref_url: 'http://localhost/namespace2/gitlabhq/tree/master',
+        },
+        commitUrl: 'https://gitlab.com/gitlab-org/gitlab-ce/commit/b7836eddf62d663c665769e1b0960197fd215067',
+        shortSha: 'b7836edd',
+        title: 'Commit message',
+        author: {
+          avatar_url: 'https://gitlab.com/uploads/user/avatar/300478/avatar.png',
+          web_url: 'https://gitlab.com/jschatz1',
+          username: 'jschatz1',
+        },
+        commitIconSvg: '<svg></svg>',
+      };
+
+      component = new CommitComponent({
+        propsData: props,
+      }).$mount();
+    });
+
+    it('should render a tag icon if it represents a tag', () => {
+      expect(component.$el.querySelector('.icon-container i').classList).toContain('fa-tag');
+    });
+
+    it('should render a link to the ref url', () => {
+      expect(component.$el.querySelector('.branch-name').getAttribute('href')).toEqual(props.commitRef.ref_url);
+    });
+
+    it('should render the ref name', () => {
+      expect(component.$el.querySelector('.branch-name').textContent).toContain(props.commitRef.name);
+    });
+
+    it('should render the commit short sha with a link to the commit url', () => {
+      expect(component.$el.querySelector('.commit-id').getAttribute('href')).toEqual(props.commitUrl);
+      expect(component.$el.querySelector('.commit-id').textContent).toContain(props.shortSha);
+    });
+
+    it('should render the given commitIconSvg', () => {
+      expect(component.$el.querySelector('.js-commit-icon').children).toContain('svg');
+    });
+
+    describe('Given commit title and author props', () => {
+      it('should render a link to the author profile', () => {
+        expect(
+          component.$el.querySelector('.commit-title .avatar-image-container').getAttribute('href'),
+        ).toEqual(props.author.web_url);
+      });
+
+      it('Should render the author avatar with title and alt attributes', () => {
+        expect(
+          component.$el.querySelector('.commit-title .avatar-image-container img').getAttribute('title'),
+        ).toContain(props.author.username);
+        expect(
+          component.$el.querySelector('.commit-title .avatar-image-container img').getAttribute('alt'),
+        ).toContain(`${props.author.username}'s avatar`);
+      });
+    });
+
+    it('should render the commit title', () => {
+      expect(
+        component.$el.querySelector('a.commit-row-message').getAttribute('href'),
+      ).toEqual(props.commitUrl);
+      expect(
+        component.$el.querySelector('a.commit-row-message').textContent,
+      ).toContain(props.title);
+    });
+  });
+
+  describe('When commit title is not provided', () => {
+    it('should render default message', () => {
+      props = {
+        tag: false,
+        commitRef: {
+          name: 'master',
+          ref_url: 'http://localhost/namespace2/gitlabhq/tree/master',
+        },
+        commitUrl: 'https://gitlab.com/gitlab-org/gitlab-ce/commit/b7836eddf62d663c665769e1b0960197fd215067',
+        shortSha: 'b7836edd',
+        title: null,
+        author: {},
+      };
+
+      component = new CommitComponent({
+        propsData: props,
+      }).$mount();
+
+      expect(
+        component.$el.querySelector('.commit-title span').textContent,
+      ).toContain('Cant find HEAD commit for this branch');
+    });
+  });
+});