1 files changed, 57 insertions, 0 deletions
diff --git a/spec/frontend/admin/background_migrations/components/database_listbox_spec.js b/spec/frontend/admin/background_migrations/components/database_listbox_spec.js
new file mode 100644
index 00000000000..3778943872e
--- /dev/null
+++ b/spec/frontend/admin/background_migrations/components/database_listbox_spec.js
@@ -0,0 +1,57 @@
+import { GlListbox } from '@gitlab/ui';
+import { shallowMount } from '@vue/test-utils';
+import BackgroundMigrationsDatabaseListbox from '~/admin/background_migrations/components/database_listbox.vue';
+import { visitUrl, setUrlParams } from '~/lib/utils/url_utility';
+import { MOCK_DATABASES, MOCK_SELECTED_DATABASE } from '../mock_data';
+
+jest.mock('~/lib/utils/url_utility', () => ({
+  visitUrl: jest.fn(),
+  setUrlParams: jest.fn(),
+}));
+
+describe('BackgroundMigrationsDatabaseListbox', () => {
+  let wrapper;
+
+  const defaultProps = {
+    databases: MOCK_DATABASES,
+    selectedDatabase: MOCK_SELECTED_DATABASE,
+  };
+
+  const createComponent = (props = {}) => {
+    wrapper = shallowMount(BackgroundMigrationsDatabaseListbox, {
+      propsData: {
+        ...defaultProps,
+        ...props,
+      },
+    });
+  };
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  const findGlListbox = () => wrapper.findComponent(GlListbox);
+
+  describe('template always', () => {
+    beforeEach(() => {
+      createComponent();
+    });
+
+    it('renders GlListbox', () => {
+      expect(findGlListbox().exists()).toBe(true);
+    });
+  });
+
+  describe('actions', () => {
+    beforeEach(() => {
+      createComponent();
+    });
+
+    it('selecting a listbox item fires visitUrl with the database param', () => {
+      findGlListbox().vm.$emit('select', MOCK_DATABASES[1].value);
+
+      expect(setUrlParams).toHaveBeenCalledWith({ database: MOCK_DATABASES[1].value });
+      expect(visitUrl).toHaveBeenCalled();
+    });
+  });
+});