1 files changed, 76 insertions, 0 deletions
diff --git a/spec/frontend/issuable/bulk_update_sidebar/components/subscriptions_dropdown_spec.js b/spec/frontend/issuable/bulk_update_sidebar/components/subscriptions_dropdown_spec.js
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index 00000000000..56ef7a1ed39
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+++ b/spec/frontend/issuable/bulk_update_sidebar/components/subscriptions_dropdown_spec.js
@@ -0,0 +1,76 @@
+import { GlDropdown, GlDropdownItem } from '@gitlab/ui';
+import { shallowMount } from '@vue/test-utils';
+import { nextTick } from 'vue';
+import SubscriptionsDropdown from '~/issuable/bulk_update_sidebar/components/subscriptions_dropdown.vue';
+import { subscriptionsDropdownOptions } from '~/issuable/bulk_update_sidebar/constants';
+
+describe('SubscriptionsDropdown component', () => {
+  let wrapper;
+
+  const findDropdown = () => wrapper.findComponent(GlDropdown);
+  const findAllDropdownItems = () => wrapper.findAllComponents(GlDropdownItem);
+  const findHiddenInput = () => wrapper.find('input');
+
+  function createComponent() {
+    wrapper = shallowMount(SubscriptionsDropdown);
+  }
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  describe('with no value selected', () => {
+    beforeEach(() => {
+      createComponent();
+    });
+
+    it('hidden input value is undefined', () => {
+      expect(findHiddenInput().attributes('value')).toBeUndefined();
+    });
+
+    it('renders default text', () => {
+      expect(findDropdown().props('text')).toBe(SubscriptionsDropdown.i18n.defaultDropdownText);
+    });
+
+    it('renders dropdown items with `is-checked` prop set to `false`', () => {
+      const dropdownItems = findAllDropdownItems();
+
+      expect(dropdownItems.at(0).props('isChecked')).toBe(false);
+      expect(dropdownItems.at(1).props('isChecked')).toBe(false);
+    });
+  });
+
+  describe('when selecting a value', () => {
+    beforeEach(() => {
+      createComponent();
+      findAllDropdownItems().at(0).vm.$emit('click');
+    });
+
+    it('updates value of the hidden input', () => {
+      expect(findHiddenInput().attributes('value')).toBe(subscriptionsDropdownOptions[0].value);
+    });
+
+    it('updates the dropdown text prop', () => {
+      expect(findDropdown().props('text')).toBe(subscriptionsDropdownOptions[0].text);
+    });
+
+    it('sets dropdown item `is-checked` prop to `true`', () => {
+      const dropdownItems = findAllDropdownItems();
+
+      expect(dropdownItems.at(0).props('isChecked')).toBe(true);
+      expect(dropdownItems.at(1).props('isChecked')).toBe(false);
+    });
+
+    describe('when selecting the value that is already selected', () => {
+      it('clears dropdown selection', async () => {
+        findAllDropdownItems().at(0).vm.$emit('click');
+        await nextTick();
+        const dropdownItems = findAllDropdownItems();
+
+        expect(dropdownItems.at(0).props('isChecked')).toBe(false);
+        expect(dropdownItems.at(1).props('isChecked')).toBe(false);
+        expect(findDropdown().props('text')).toBe(SubscriptionsDropdown.i18n.defaultDropdownText);
+      });
+    });
+  });
+});