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diff --git a/spec/frontend/vue_shared/components/project_selector/project_selector_spec.js b/spec/frontend/vue_shared/components/project_selector/project_selector_spec.js
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+import Vue from 'vue';
+import { head } from 'lodash';
+
+import { GlSearchBoxByType, GlInfiniteScroll } from '@gitlab/ui';
+import { mount, createLocalVue } from '@vue/test-utils';
+import { trimText } from 'helpers/text_helper';
+import ProjectListItem from '~/vue_shared/components/project_selector/project_list_item.vue';
+import ProjectSelector from '~/vue_shared/components/project_selector/project_selector.vue';
+
+const localVue = createLocalVue();
+
+describe('ProjectSelector component', () => {
+  let wrapper;
+  let vm;
+  const allProjects = getJSONFixture('static/projects.json');
+  const searchResults = allProjects.slice(0, 5);
+  let selected = [];
+  selected = selected.concat(allProjects.slice(0, 3)).concat(allProjects.slice(5, 8));
+
+  const findSearchInput = () => wrapper.find(GlSearchBoxByType).find('input');
+
+  beforeEach(() => {
+    wrapper = mount(Vue.extend(ProjectSelector), {
+      localVue,
+      propsData: {
+        projectSearchResults: searchResults,
+        selectedProjects: selected,
+        showNoResultsMessage: false,
+        showMinimumSearchQueryMessage: false,
+        showLoadingIndicator: false,
+        showSearchErrorMessage: false,
+      },
+      attachToDocument: true,
+    });
+
+    ({ vm } = wrapper);
+  });
+
+  afterEach(() => {
+    vm.$destroy();
+  });
+
+  it('renders the search results', () => {
+    expect(wrapper.findAll('.js-project-list-item').length).toBe(5);
+  });
+
+  it(`triggers a search when the search input value changes`, () => {
+    jest.spyOn(vm, '$emit').mockImplementation(() => {});
+    const query = 'my test query!';
+    const searchInput = findSearchInput();
+
+    searchInput.setValue(query);
+    searchInput.trigger('input');
+
+    expect(vm.$emit).toHaveBeenCalledWith('searched', query);
+  });
+
+  it(`includes a placeholder in the search box`, () => {
+    const searchInput = findSearchInput();
+
+    expect(searchInput.attributes('placeholder')).toBe('Search your projects');
+  });
+
+  it(`triggers a "bottomReached" event when user has scrolled to the bottom of the list`, () => {
+    jest.spyOn(vm, '$emit').mockImplementation(() => {});
+    wrapper.find(GlInfiniteScroll).vm.$emit('bottomReached');
+
+    expect(vm.$emit).toHaveBeenCalledWith('bottomReached');
+  });
+
+  it(`triggers a "projectClicked" event when a project is clicked`, () => {
+    jest.spyOn(vm, '$emit').mockImplementation(() => {});
+    wrapper.find(ProjectListItem).vm.$emit('click', head(searchResults));
+
+    expect(vm.$emit).toHaveBeenCalledWith('projectClicked', head(searchResults));
+  });
+
+  it(`shows a "no results" message if showNoResultsMessage === true`, () => {
+    wrapper.setProps({ showNoResultsMessage: true });
+
+    return vm.$nextTick().then(() => {
+      const noResultsEl = wrapper.find('.js-no-results-message');
+
+      expect(noResultsEl.exists()).toBe(true);
+      expect(trimText(noResultsEl.text())).toEqual('Sorry, no projects matched your search');
+    });
+  });
+
+  it(`shows a "minimum search query" message if showMinimumSearchQueryMessage === true`, () => {
+    wrapper.setProps({ showMinimumSearchQueryMessage: true });
+
+    return vm.$nextTick().then(() => {
+      const minimumSearchEl = wrapper.find('.js-minimum-search-query-message');
+
+      expect(minimumSearchEl.exists()).toBe(true);
+      expect(trimText(minimumSearchEl.text())).toEqual('Enter at least three characters to search');
+    });
+  });
+
+  it(`shows a error message if showSearchErrorMessage === true`, () => {
+    wrapper.setProps({ showSearchErrorMessage: true });
+
+    return vm.$nextTick().then(() => {
+      const errorMessageEl = wrapper.find('.js-search-error-message');
+
+      expect(errorMessageEl.exists()).toBe(true);
+      expect(trimText(errorMessageEl.text())).toEqual(
+        'Something went wrong, unable to search projects',
+      );
+    });
+  });
+});