1 files changed, 207 insertions, 0 deletions
diff --git a/spec/frontend/vue_shared/components/filtered_search_bar/tokens/branch_token_spec.js b/spec/frontend/vue_shared/components/filtered_search_bar/tokens/branch_token_spec.js
new file mode 100644
index 00000000000..12b7fd58670
--- /dev/null
+++ b/spec/frontend/vue_shared/components/filtered_search_bar/tokens/branch_token_spec.js
@@ -0,0 +1,207 @@
+import { mount } from '@vue/test-utils';
+import {
+  GlFilteredSearchToken,
+  GlFilteredSearchSuggestion,
+  GlFilteredSearchTokenSegment,
+  GlDropdownDivider,
+} from '@gitlab/ui';
+import MockAdapter from 'axios-mock-adapter';
+import waitForPromises from 'helpers/wait_for_promises';
+
+import axios from '~/lib/utils/axios_utils';
+import createFlash from '~/flash';
+import {
+  DEFAULT_LABEL_NONE,
+  DEFAULT_LABEL_ANY,
+} from '~/vue_shared/components/filtered_search_bar/constants';
+import BranchToken from '~/vue_shared/components/filtered_search_bar/tokens/branch_token.vue';
+
+import { mockBranches, mockBranchToken } from '../mock_data';
+
+jest.mock('~/flash');
+const defaultStubs = {
+  Portal: true,
+  GlFilteredSearchSuggestionList: {
+    template: '<div></div>',
+    methods: {
+      getValue: () => '=',
+    },
+  },
+};
+
+function createComponent(options = {}) {
+  const {
+    config = mockBranchToken,
+    value = { data: '' },
+    active = false,
+    stubs = defaultStubs,
+  } = options;
+  return mount(BranchToken, {
+    propsData: {
+      config,
+      value,
+      active,
+    },
+    provide: {
+      portalName: 'fake target',
+      alignSuggestions: function fakeAlignSuggestions() {},
+    },
+    stubs,
+  });
+}
+
+describe('BranchToken', () => {
+  let mock;
+  let wrapper;
+
+  beforeEach(() => {
+    mock = new MockAdapter(axios);
+  });
+
+  afterEach(() => {
+    mock.restore();
+    wrapper.destroy();
+  });
+
+  describe('computed', () => {
+    beforeEach(async () => {
+      wrapper = createComponent({ value: { data: mockBranches[0].name } });
+
+      wrapper.setData({
+        branches: mockBranches,
+      });
+
+      await wrapper.vm.$nextTick();
+    });
+
+    describe('currentValue', () => {
+      it('returns lowercase string for `value.data`', () => {
+        expect(wrapper.vm.currentValue).toBe('master');
+      });
+    });
+
+    describe('activeBranch', () => {
+      it('returns object for currently present `value.data`', () => {
+        expect(wrapper.vm.activeBranch).toEqual(mockBranches[0]);
+      });
+    });
+  });
+
+  describe('methods', () => {
+    beforeEach(() => {
+      wrapper = createComponent();
+    });
+
+    describe('fetchBranchBySearchTerm', () => {
+      it('calls `config.fetchBranches` with provided searchTerm param', () => {
+        jest.spyOn(wrapper.vm.config, 'fetchBranches');
+
+        wrapper.vm.fetchBranchBySearchTerm('foo');
+
+        expect(wrapper.vm.config.fetchBranches).toHaveBeenCalledWith('foo');
+      });
+
+      it('sets response to `branches` when request is succesful', () => {
+        jest.spyOn(wrapper.vm.config, 'fetchBranches').mockResolvedValue({ data: mockBranches });
+
+        wrapper.vm.fetchBranchBySearchTerm('foo');
+
+        return waitForPromises().then(() => {
+          expect(wrapper.vm.branches).toEqual(mockBranches);
+        });
+      });
+
+      it('calls `createFlash` with flash error message when request fails', () => {
+        jest.spyOn(wrapper.vm.config, 'fetchBranches').mockRejectedValue({});
+
+        wrapper.vm.fetchBranchBySearchTerm('foo');
+
+        return waitForPromises().then(() => {
+          expect(createFlash).toHaveBeenCalledWith({
+            message: 'There was a problem fetching branches.',
+          });
+        });
+      });
+
+      it('sets `loading` to false when request completes', () => {
+        jest.spyOn(wrapper.vm.config, 'fetchBranches').mockRejectedValue({});
+
+        wrapper.vm.fetchBranchBySearchTerm('foo');
+
+        return waitForPromises().then(() => {
+          expect(wrapper.vm.loading).toBe(false);
+        });
+      });
+    });
+  });
+
+  describe('template', () => {
+    const defaultBranches = [DEFAULT_LABEL_NONE, DEFAULT_LABEL_ANY];
+    async function showSuggestions() {
+      const tokenSegments = wrapper.findAll(GlFilteredSearchTokenSegment);
+      const suggestionsSegment = tokenSegments.at(2);
+      suggestionsSegment.vm.$emit('activate');
+      await wrapper.vm.$nextTick();
+    }
+
+    beforeEach(async () => {
+      wrapper = createComponent({ value: { data: mockBranches[0].name } });
+
+      wrapper.setData({
+        branches: mockBranches,
+      });
+
+      await wrapper.vm.$nextTick();
+    });
+
+    it('renders gl-filtered-search-token component', () => {
+      expect(wrapper.find(GlFilteredSearchToken).exists()).toBe(true);
+    });
+
+    it('renders token item when value is selected', () => {
+      const tokenSegments = wrapper.findAll(GlFilteredSearchTokenSegment);
+
+      expect(tokenSegments).toHaveLength(3);
+      expect(tokenSegments.at(2).text()).toBe(mockBranches[0].name);
+    });
+
+    it('renders provided defaultBranches as suggestions', async () => {
+      wrapper = createComponent({
+        active: true,
+        config: { ...mockBranchToken, defaultBranches },
+        stubs: { Portal: true },
+      });
+      await showSuggestions();
+      const suggestions = wrapper.findAll(GlFilteredSearchSuggestion);
+
+      expect(suggestions).toHaveLength(defaultBranches.length);
+      defaultBranches.forEach((branch, index) => {
+        expect(suggestions.at(index).text()).toBe(branch.text);
+      });
+    });
+
+    it('does not render divider when no defaultBranches', async () => {
+      wrapper = createComponent({
+        active: true,
+        config: { ...mockBranchToken, defaultBranches: [] },
+        stubs: { Portal: true },
+      });
+      await showSuggestions();
+
+      expect(wrapper.contains(GlFilteredSearchSuggestion)).toBe(false);
+      expect(wrapper.contains(GlDropdownDivider)).toBe(false);
+    });
+
+    it('renders no suggestions as default', async () => {
+      wrapper = createComponent({
+        active: true,
+        config: { ...mockBranchToken },
+        stubs: { Portal: true },
+      });
+      await showSuggestions();
+      const suggestions = wrapper.findAll(GlFilteredSearchSuggestion);
+
+      expect(suggestions).toHaveLength(0);
+    });
+  });
+});