1 files changed, 49 insertions, 0 deletions
diff --git a/spec/frontend/repository/components/preview/index_spec.js b/spec/frontend/repository/components/preview/index_spec.js
new file mode 100644
index 00000000000..0112e6310f4
--- /dev/null
+++ b/spec/frontend/repository/components/preview/index_spec.js
@@ -0,0 +1,49 @@
+import { shallowMount } from '@vue/test-utils';
+import { GlLoadingIcon } from '@gitlab/ui';
+import Preview from '~/repository/components/preview/index.vue';
+
+let vm;
+let $apollo;
+
+function factory(blob) {
+  $apollo = {
+    query: jest.fn().mockReturnValue(Promise.resolve({})),
+  };
+
+  vm = shallowMount(Preview, {
+    propsData: {
+      blob,
+    },
+    mocks: {
+      $apollo,
+    },
+  });
+}
+
+describe('Repository file preview component', () => {
+  afterEach(() => {
+    vm.destroy();
+  });
+
+  it('renders file HTML', () => {
+    factory({
+      webUrl: 'http://test.com',
+      name: 'README.md',
+    });
+
+    vm.setData({ readme: { html: '<div class="blob">test</div>' } });
+
+    expect(vm.element).toMatchSnapshot();
+  });
+
+  it('renders loading icon', () => {
+    factory({
+      webUrl: 'http://test.com',
+      name: 'README.md',
+    });
+
+    vm.setData({ loading: 1 });
+
+    expect(vm.find(GlLoadingIcon).exists()).toBe(true);
+  });
+});