1 files changed, 48 insertions, 0 deletions
diff --git a/spec/frontend/ref/init_ambiguous_ref_modal_spec.js b/spec/frontend/ref/init_ambiguous_ref_modal_spec.js
new file mode 100644
index 00000000000..322978f598f
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+++ b/spec/frontend/ref/init_ambiguous_ref_modal_spec.js
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+import Vue from 'vue';
+import initAmbiguousRefModal from '~/ref/init_ambiguous_ref_modal';
+import AmbiguousRefModal from '~/ref/components/ambiguous_ref_modal.vue';
+import { setHTMLFixture } from 'helpers/fixtures';
+import setWindowLocation from 'helpers/set_window_location_helper';
+
+const generateFixture = (isAmbiguous) => {
+  return `<div id="js-ambiguous-ref-modal" data-ambiguous="${isAmbiguous}" data-ref="main"></div>`;
+};
+
+const init = ({ isAmbiguous, htmlFixture = generateFixture(isAmbiguous) }) => {
+  setHTMLFixture(htmlFixture);
+  initAmbiguousRefModal();
+};
+
+beforeEach(() => jest.spyOn(Vue, 'extend'));
+
+describe('initAmbiguousRefModal', () => {
+  it('inits a new AmbiguousRefModal Vue component', () => {
+    init({ isAmbiguous: true });
+    expect(Vue.extend).toHaveBeenCalledWith(AmbiguousRefModal);
+  });
+
+  it.each(['<div></div>', '', null])(
+    'does not render a new AmbiguousRefModal Vue component when root element is %s',
+    (htmlFixture) => {
+      init({ isAmbiguous: true, htmlFixture });
+
+      expect(Vue.extend).not.toHaveBeenCalledWith(AmbiguousRefModal);
+    },
+  );
+
+  it('does not render a new AmbiguousRefModal Vue component "ambiguous" data attribute is "false"', () => {
+    init({ isAmbiguous: false });
+
+    expect(Vue.extend).not.toHaveBeenCalledWith(AmbiguousRefModal);
+  });
+
+  it.each(['tags', 'heads'])(
+    'does not render a new AmbiguousRefModal Vue component when "ref_type" param is set to %s',
+    (refType) => {
+      setWindowLocation(`?ref_type=${refType}`);
+      init({ isAmbiguous: true });
+
+      expect(Vue.extend).not.toHaveBeenCalledWith(AmbiguousRefModal);
+    },
+  );
+});