1 files changed, 137 insertions, 0 deletions
diff --git a/spec/frontend/create_cluster/eks_cluster/components/cluster_form_dropdown_spec.js b/spec/frontend/create_cluster/eks_cluster/components/cluster_form_dropdown_spec.js
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+++ b/spec/frontend/create_cluster/eks_cluster/components/cluster_form_dropdown_spec.js
@@ -0,0 +1,137 @@
+import { shallowMount } from '@vue/test-utils';
+
+import ClusterFormDropdown from '~/create_cluster/eks_cluster/components/cluster_form_dropdown.vue';
+import DropdownButton from '~/vue_shared/components/dropdown/dropdown_button.vue';
+import DropdownSearchInput from '~/vue_shared/components/dropdown/dropdown_search_input.vue';
+import DropdownHiddenInput from '~/vue_shared/components/dropdown/dropdown_hidden_input.vue';
+
+describe('ClusterFormDropdown', () => {
+  let vm;
+
+  beforeEach(() => {
+    vm = shallowMount(ClusterFormDropdown);
+  });
+  afterEach(() => vm.destroy());
+
+  describe('when no item is selected', () => {
+    it('displays placeholder text', () => {
+      const placeholder = 'placeholder';
+
+      vm.setProps({ placeholder });
+
+      expect(vm.find(DropdownButton).props('toggleText')).toEqual(placeholder);
+    });
+  });
+
+  describe('when an item is selected', () => {
+    const selectedItem = { name: 'Name', value: 'value' };
+
+    beforeEach(() => {
+      vm.setData({ selectedItem });
+    });
+
+    it('displays selected item label', () => {
+      expect(vm.find(DropdownButton).props('toggleText')).toEqual(selectedItem.name);
+    });
+
+    it('sets selected value to dropdown hidden input', () => {
+      expect(vm.find(DropdownHiddenInput).props('value')).toEqual(selectedItem.value);
+    });
+  });
+
+  describe('when an item is selected and has a custom label property', () => {
+    it('displays selected item custom label', () => {
+      const labelProperty = 'customLabel';
+      const selectedItem = { [labelProperty]: 'Name' };
+
+      vm.setProps({ labelProperty });
+      vm.setData({ selectedItem });
+
+      expect(vm.find(DropdownButton).props('toggleText')).toEqual(selectedItem[labelProperty]);
+    });
+  });
+
+  describe('when loading', () => {
+    it('dropdown button isLoading', () => {
+      vm.setProps({ loading: true });
+
+      expect(vm.find(DropdownButton).props('isLoading')).toBe(true);
+    });
+  });
+
+  describe('when loading and loadingText is provided', () => {
+    it('uses loading text as toggle button text', () => {
+      const loadingText = 'loading text';
+
+      vm.setProps({ loading: true, loadingText });
+
+      expect(vm.find(DropdownButton).props('toggleText')).toEqual(loadingText);
+    });
+  });
+
+  describe('when disabled', () => {
+    it('dropdown button isDisabled', () => {
+      vm.setProps({ disabled: true });
+
+      expect(vm.find(DropdownButton).props('isDisabled')).toBe(true);
+    });
+  });
+
+  describe('when disabled and disabledText is provided', () => {
+    it('uses disabled text as toggle button text', () => {
+      const disabledText = 'disabled text';
+
+      vm.setProps({ disabled: true, disabledText });
+
+      expect(vm.find(DropdownButton).props('toggleText')).toBe(disabledText);
+    });
+  });
+
+  describe('when has errors', () => {
+    it('sets border-danger class selector to dropdown toggle', () => {
+      vm.setProps({ hasErrors: true });
+
+      expect(vm.find(DropdownButton).classes('border-danger')).toBe(true);
+    });
+  });
+
+  describe('when has errors and an error message', () => {
+    it('displays error message', () => {
+      const errorMessage = 'error message';
+
+      vm.setProps({ hasErrors: true, errorMessage });
+
+      expect(vm.find('.js-eks-dropdown-error-message').text()).toEqual(errorMessage);
+    });
+  });
+
+  describe('when no results are available', () => {
+    it('displays empty text', () => {
+      const emptyText = 'error message';
+
+      vm.setProps({ items: [], emptyText });
+
+      expect(vm.find('.js-empty-text').text()).toEqual(emptyText);
+    });
+  });
+
+  it('displays search field placeholder', () => {
+    const searchFieldPlaceholder = 'Placeholder';
+
+    vm.setProps({ searchFieldPlaceholder });
+
+    expect(vm.find(DropdownSearchInput).props('placeholderText')).toEqual(searchFieldPlaceholder);
+  });
+
+  it('it filters results by search query', () => {
+    const secondItem = { name: 'second item' };
+    const items = [{ name: 'first item' }, secondItem];
+    const searchQuery = 'second';
+
+    vm.setProps({ items });
+    vm.setData({ searchQuery });
+
+    expect(vm.findAll('.js-dropdown-item').length).toEqual(1);
+    expect(vm.find('.js-dropdown-item').text()).toEqual(secondItem.name);
+  });
+});