1 files changed, 129 insertions, 0 deletions
diff --git a/spec/frontend/clusters_list/components/available_agents_dropwdown_spec.js b/spec/frontend/clusters_list/components/available_agents_dropwdown_spec.js
new file mode 100644
index 00000000000..40c2c59e187
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+++ b/spec/frontend/clusters_list/components/available_agents_dropwdown_spec.js
@@ -0,0 +1,129 @@
+import { GlDropdown, GlDropdownItem } from '@gitlab/ui';
+import { createLocalVue, mount } from '@vue/test-utils';
+import VueApollo from 'vue-apollo';
+import AvailableAgentsDropdown from '~/clusters_list/components/available_agents_dropdown.vue';
+import { I18N_AVAILABLE_AGENTS_DROPDOWN } from '~/clusters_list/constants';
+import agentConfigurationsQuery from '~/clusters_list/graphql/queries/agent_configurations.query.graphql';
+import createMockApollo from 'helpers/mock_apollo_helper';
+import { agentConfigurationsResponse } from './mock_data';
+
+const localVue = createLocalVue();
+localVue.use(VueApollo);
+
+describe('AvailableAgentsDropdown', () => {
+  let wrapper;
+
+  const i18n = I18N_AVAILABLE_AGENTS_DROPDOWN;
+  const findDropdown = () => wrapper.findComponent(GlDropdown);
+  const findDropdownItems = () => wrapper.findAllComponents(GlDropdownItem);
+  const findConfiguredAgentItem = () => findDropdownItems().at(0);
+
+  const createWrapper = ({ propsData = {}, isLoading = false }) => {
+    const provide = {
+      projectPath: 'path/to/project',
+    };
+
+    wrapper = (() => {
+      if (isLoading) {
+        const mocks = {
+          $apollo: {
+            queries: {
+              agents: {
+                loading: true,
+              },
+            },
+          },
+        };
+
+        return mount(AvailableAgentsDropdown, { mocks, provide, propsData });
+      }
+
+      const apolloProvider = createMockApollo([
+        [agentConfigurationsQuery, jest.fn().mockResolvedValue(agentConfigurationsResponse)],
+      ]);
+
+      return mount(AvailableAgentsDropdown, {
+        localVue,
+        apolloProvider,
+        provide,
+        propsData,
+      });
+    })();
+  };
+
+  afterEach(() => {
+    wrapper.destroy();
+    wrapper = null;
+  });
+
+  describe('there are agents available', () => {
+    const propsData = {
+      isRegistering: false,
+    };
+
+    beforeEach(() => {
+      createWrapper({ propsData });
+    });
+
+    it('prompts to select an agent', () => {
+      expect(findDropdown().props('text')).toBe(i18n.selectAgent);
+    });
+
+    it('shows only agents that are not yet installed', () => {
+      expect(findDropdownItems()).toHaveLength(1);
+      expect(findConfiguredAgentItem().text()).toBe('configured-agent');
+      expect(findConfiguredAgentItem().props('isChecked')).toBe(false);
+    });
+
+    describe('click events', () => {
+      beforeEach(() => {
+        findConfiguredAgentItem().vm.$emit('click');
+      });
+
+      it('emits agentSelected with the name of the clicked agent', () => {
+        expect(wrapper.emitted('agentSelected')).toEqual([['configured-agent']]);
+      });
+
+      it('marks the clicked item as selected', () => {
+        expect(findDropdown().props('text')).toBe('configured-agent');
+        expect(findConfiguredAgentItem().props('isChecked')).toBe(true);
+      });
+    });
+  });
+
+  describe('registration in progress', () => {
+    const propsData = {
+      isRegistering: true,
+    };
+
+    beforeEach(() => {
+      createWrapper({ propsData });
+    });
+
+    it('updates the text in the dropdown', () => {
+      expect(findDropdown().props('text')).toBe(i18n.registeringAgent);
+    });
+
+    it('displays a loading icon', () => {
+      expect(findDropdown().props('loading')).toBe(true);
+    });
+  });
+
+  describe('agents query is loading', () => {
+    const propsData = {
+      isRegistering: false,
+    };
+
+    beforeEach(() => {
+      createWrapper({ propsData, isLoading: true });
+    });
+
+    it('updates the text in the dropdown', () => {
+      expect(findDropdown().text()).toBe(i18n.selectAgent);
+    });
+
+    it('displays a loading icon', () => {
+      expect(findDropdown().props('loading')).toBe(true);
+    });
+  });
+});