Added Diff Viewer to new VUE based MR page

4 files changed, 109 insertions, 10 deletions

diff --git a/spec/javascripts/diffs/components/diff_content_spec.js b/spec/javascripts/diffs/components/diff_content_spec.js
index 7237274eb43..dea600a783a 100644
--- a/spec/javascripts/diffs/components/diff_content_spec.js
+++ b/spec/javascripts/diffs/components/diff_content_spec.js
@@ -1 +1,95 @@
-// TODO: https://gitlab.com/gitlab-org/gitlab-ce/issues/48034
+import Vue from 'vue';
+import DiffContentComponent from '~/diffs/components/diff_content.vue';
+import store from '~/mr_notes/stores';
+import { mountComponentWithStore } from 'spec/helpers/vue_mount_component_helper';
+import { GREEN_BOX_IMAGE_URL, RED_BOX_IMAGE_URL } from 'spec/test_constants';
+import diffFileMockData from '../mock_data/diff_file';
+
+describe('DiffContent', () => {
+  const Component = Vue.extend(DiffContentComponent);
+  let vm;
+  const getDiffFileMock = () => Object.assign({}, diffFileMockData);
+
+  beforeEach(() => {
+    vm = mountComponentWithStore(Component, {
+      store,
+      props: {
+        diffFile: getDiffFileMock(),
+      },
+    });
+  });
+
+  describe('text based files', () => {
+    it('should render diff inline view', done => {
+      vm.$store.state.diffs.diffViewType = 'inline';
+
+      vm.$nextTick(() => {
+        expect(vm.$el.querySelectorAll('.js-diff-inline-view').length).toEqual(1);
+
+        done();
+      });
+    });
+
+    it('should render diff parallel view', done => {
+      vm.$store.state.diffs.diffViewType = 'parallel';
+
+      vm.$nextTick(() => {
+        expect(vm.$el.querySelectorAll('.parallel').length).toEqual(18);
+
+        done();
+      });
+    });
+  });
+
+  describe('Non-Text diffs', () => {
+    beforeEach(() => {
+      vm.diffFile.text = false;
+    });
+
+    describe('image diff', () => {
+      beforeEach(() => {
+        vm.diffFile.newPath = GREEN_BOX_IMAGE_URL;
+        vm.diffFile.newSha = 'DEF';
+        vm.diffFile.oldPath = RED_BOX_IMAGE_URL;
+        vm.diffFile.oldSha = 'ABC';
+        vm.diffFile.viewPath = '';
+      });
+
+      it('should have image diff view in place', done => {
+        vm.$nextTick(() => {
+          expect(vm.$el.querySelectorAll('.js-diff-inline-view').length).toEqual(0);
+
+          expect(vm.$el.querySelectorAll('.diff-viewer .image').length).toEqual(1);
+
+          done();
+        });
+      });
+    });
+
+    describe('file diff', () => {
+      it('should have download buttons in place', done => {
+        const el = vm.$el;
+        vm.diffFile.newPath = 'test.abc';
+        vm.diffFile.newSha = 'DEF';
+        vm.diffFile.oldPath = 'test.abc';
+        vm.diffFile.oldSha = 'ABC';
+
+        vm.$nextTick(() => {
+          expect(el.querySelectorAll('.js-diff-inline-view').length).toEqual(0);
+
+          expect(el.querySelector('.deleted .file-info').textContent.trim()).toContain('test.abc');
+          expect(el.querySelector('.deleted .btn.btn-default').textContent.trim()).toContain(
+            'Download',
+          );
+
+          expect(el.querySelector('.added .file-info').textContent.trim()).toContain('test.abc');
+          expect(el.querySelector('.added .btn.btn-default').textContent.trim()).toContain(
+            'Download',
+          );
+
+          done();
+        });
+      });
+    });
+  });
+});
diff --git a/spec/javascripts/diffs/store/actions_spec.js b/spec/javascripts/diffs/store/actions_spec.js
index e61780c9928..f0bd098f698 100644
--- a/spec/javascripts/diffs/store/actions_spec.js
+++ b/spec/javascripts/diffs/store/actions_spec.js
@@ -12,15 +12,16 @@ import axios from '~/lib/utils/axios_utils';
 import testAction from '../../helpers/vuex_action_helper';
 
 describe('DiffsStoreActions', () => {
-  describe('setEndpoint', () => {
-    it('should set given endpoint', done => {
+  describe('setBaseConfig', () => {
+    it('should set given endpoint and project path', done => {
       const endpoint = '/diffs/set/endpoint';
+      const projectPath = '/root/project';
 
       testAction(
-        actions.setEndpoint,
-        endpoint,
-        { endpoint: '' },
-        [{ type: types.SET_ENDPOINT, payload: endpoint }],
+        actions.setBaseConfig,
+        { endpoint, projectPath },
+        { endpoint: '', projectPath: '' },
+        [{ type: types.SET_BASE_CONFIG, payload: { endpoint, projectPath } }],
         [],
         done,
       );
diff --git a/spec/javascripts/diffs/store/mutations_spec.js b/spec/javascripts/diffs/store/mutations_spec.js
index 5f1a6e9def7..02836fcaeea 100644
--- a/spec/javascripts/diffs/store/mutations_spec.js
+++ b/spec/javascripts/diffs/store/mutations_spec.js
@@ -3,13 +3,15 @@ import * as types from '~/diffs/store/mutation_types';
 import { INLINE_DIFF_VIEW_TYPE } from '~/diffs/constants';
 
 describe('DiffsStoreMutations', () => {
-  describe('SET_ENDPOINT', () => {
-    it('should set endpoint', () => {
+  describe('SET_BASE_CONFIG', () => {
+    it('should set endpoint and project path', () => {
       const state = {};
       const endpoint = '/diffs/endpoint';
+      const projectPath = '/root/project';
 
-      mutations[types.SET_ENDPOINT](state, endpoint);
+      mutations[types.SET_BASE_CONFIG](state, { endpoint, projectPath });
       expect(state.endpoint).toEqual(endpoint);
+      expect(state.projectPath).toEqual(projectPath);
     });
   });
 
diff --git a/spec/javascripts/helpers/init_vue_mr_page_helper.js b/spec/javascripts/helpers/init_vue_mr_page_helper.js
index 921d42a0871..05c6d587e9c 100644
--- a/spec/javascripts/helpers/init_vue_mr_page_helper.js
+++ b/spec/javascripts/helpers/init_vue_mr_page_helper.js
@@ -6,6 +6,7 @@ import diffFileMockData from '../diffs/mock_data/diff_file';
 
 export default function initVueMRPage() {
   const diffsAppEndpoint = '/diffs/app/endpoint';
+  const diffsAppProjectPath = 'testproject';
   const mrEl = document.createElement('div');
   mrEl.className = 'merge-request fixture-mr';
   mrEl.setAttribute('data-mr-action', 'diffs');
@@ -26,6 +27,7 @@ export default function initVueMRPage() {
   const diffsAppEl = document.createElement('div');
   diffsAppEl.id = 'js-diffs-app';
   diffsAppEl.setAttribute('data-endpoint', diffsAppEndpoint);
+  diffsAppEl.setAttribute('data-project-path', diffsAppProjectPath);
   diffsAppEl.setAttribute('data-current-user-data', JSON.stringify(userDataMock));
   document.body.appendChild(diffsAppEl);