1 files changed, 109 insertions, 0 deletions
diff --git a/spec/javascripts/create_cluster/gke_cluster/components/gke_machine_type_dropdown_spec.js b/spec/javascripts/create_cluster/gke_cluster/components/gke_machine_type_dropdown_spec.js
new file mode 100644
index 00000000000..7aa7aa9a112
--- /dev/null
+++ b/spec/javascripts/create_cluster/gke_cluster/components/gke_machine_type_dropdown_spec.js
@@ -0,0 +1,109 @@
+import Vue from 'vue';
+import GkeMachineTypeDropdown from '~/create_cluster/gke_cluster/components/gke_machine_type_dropdown.vue';
+import { createStore } from '~/create_cluster/gke_cluster/store';
+import {
+  SET_PROJECT,
+  SET_PROJECT_BILLING_STATUS,
+  SET_ZONE,
+  SET_MACHINE_TYPES,
+} from '~/create_cluster/gke_cluster/store/mutation_types';
+import { mountComponentWithStore } from 'spec/helpers/vue_mount_component_helper';
+import {
+  selectedZoneMock,
+  selectedProjectMock,
+  selectedMachineTypeMock,
+  gapiMachineTypesResponseMock,
+} from '../mock_data';
+
+const componentConfig = {
+  fieldId: 'cluster_provider_gcp_attributes_gcp_machine_type',
+  fieldName: 'cluster[provider_gcp_attributes][gcp_machine_type]',
+};
+
+const LABELS = {
+  LOADING: 'Fetching machine types',
+  DISABLED_NO_PROJECT: 'Select project and zone to choose machine type',
+  DISABLED_NO_ZONE: 'Select zone to choose machine type',
+  DEFAULT: 'Select machine type',
+};
+
+const createComponent = (store, props = componentConfig) => {
+  const Component = Vue.extend(GkeMachineTypeDropdown);
+
+  return mountComponentWithStore(Component, {
+    el: null,
+    props,
+    store,
+  });
+};
+
+describe('GkeMachineTypeDropdown', () => {
+  let vm;
+  let store;
+
+  beforeEach(() => {
+    store = createStore();
+    vm = createComponent(store);
+  });
+
+  afterEach(() => {
+    vm.$destroy();
+  });
+
+  describe('shows various toggle text depending on state', () => {
+    it('returns disabled state toggle text when no project and zone are selected', () => {
+      expect(vm.toggleText).toBe(LABELS.DISABLED_NO_PROJECT);
+    });
+
+    it('returns disabled state toggle text when no zone is selected', () => {
+      vm.$store.commit(SET_PROJECT, selectedProjectMock);
+      vm.$store.commit(SET_PROJECT_BILLING_STATUS, true);
+
+      expect(vm.toggleText).toBe(LABELS.DISABLED_NO_ZONE);
+    });
+
+    it('returns loading toggle text', () => {
+      vm.isLoading = true;
+
+      expect(vm.toggleText).toBe(LABELS.LOADING);
+    });
+
+    it('returns default toggle text', () => {
+      expect(vm.toggleText).toBe(LABELS.DISABLED_NO_PROJECT);
+
+      vm.$store.commit(SET_PROJECT, selectedProjectMock);
+      vm.$store.commit(SET_PROJECT_BILLING_STATUS, true);
+      vm.$store.commit(SET_ZONE, selectedZoneMock);
+
+      expect(vm.toggleText).toBe(LABELS.DEFAULT);
+    });
+
+    it('returns machine type name if machine type selected', () => {
+      vm.setItem(selectedMachineTypeMock);
+
+      expect(vm.toggleText).toBe(selectedMachineTypeMock);
+    });
+  });
+
+  describe('form input', () => {
+    it('reflects new value when dropdown item is clicked', done => {
+      expect(vm.$el.querySelector('input').value).toBe('');
+      vm.$store.commit(SET_MACHINE_TYPES, gapiMachineTypesResponseMock.items);
+
+      return vm
+        .$nextTick()
+        .then(() => {
+          vm.$el.querySelector('.dropdown-content button').click();
+
+          return vm
+            .$nextTick()
+            .then(() => {
+              expect(vm.$el.querySelector('input').value).toBe(selectedMachineTypeMock);
+              done();
+            })
+            .catch(done.fail);
+        })
+        .catch(done.fail);
+    });
+  });
+});