1 files changed, 95 insertions, 0 deletions
diff --git a/spec/javascripts/diffs/components/diff_content_spec.js b/spec/javascripts/diffs/components/diff_content_spec.js
new file mode 100644
index 00000000000..dea600a783a
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+++ b/spec/javascripts/diffs/components/diff_content_spec.js
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+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();
+        });
+      });
+    });
+  });
+});