1 files changed, 113 insertions, 0 deletions
diff --git a/spec/frontend/ci/catalog/components/details/ci_resource_components_spec.js b/spec/frontend/ci/catalog/components/details/ci_resource_components_spec.js
new file mode 100644
index 00000000000..a41996d20b3
--- /dev/null
+++ b/spec/frontend/ci/catalog/components/details/ci_resource_components_spec.js
@@ -0,0 +1,113 @@
+import Vue from 'vue';
+import VueApollo from 'vue-apollo';
+import { GlLoadingIcon } from '@gitlab/ui';
+import { mountExtended } from 'helpers/vue_test_utils_helper';
+import { resolvers } from '~/ci/catalog/graphql/settings';
+import CiResourceComponents from '~/ci/catalog/components/details/ci_resource_components.vue';
+import getCiCatalogcomponentComponents from '~/ci/catalog/graphql/queries/get_ci_catalog_resource_components.query.graphql';
+import createMockApollo from 'helpers/mock_apollo_helper';
+import waitForPromises from 'helpers/wait_for_promises';
+import { createAlert } from '~/alert';
+import { mockComponents } from '../../mock';
+
+Vue.use(VueApollo);
+jest.mock('~/alert');
+
+describe('CiResourceComponents', () => {
+  let wrapper;
+  let mockComponentsResponse;
+
+  const components = mockComponents.data.ciCatalogResource.components.nodes;
+
+  const resourceId = 'gid://gitlab/Ci::Catalog::Resource/1';
+
+  const defaultProps = { resourceId };
+
+  const createComponent = async () => {
+    const handlers = [[getCiCatalogcomponentComponents, mockComponentsResponse]];
+    const mockApollo = createMockApollo(handlers, resolvers);
+
+    wrapper = mountExtended(CiResourceComponents, {
+      propsData: {
+        ...defaultProps,
+      },
+      apolloProvider: mockApollo,
+    });
+
+    await waitForPromises();
+  };
+
+  const findLoadingIcon = () => wrapper.findComponent(GlLoadingIcon);
+  const findComponents = () => wrapper.findAllByTestId('component-section');
+
+  beforeEach(() => {
+    mockComponentsResponse = jest.fn();
+    mockComponentsResponse.mockResolvedValue(mockComponents);
+  });
+
+  describe('when queries are loading', () => {
+    beforeEach(() => {
+      createComponent();
+    });
+
+    it('render a loading icon', () => {
+      expect(findLoadingIcon().exists()).toBe(true);
+    });
+
+    it('does not render components', () => {
+      expect(findComponents()).toHaveLength(0);
+    });
+
+    it('does not throw an error', () => {
+      expect(createAlert).not.toHaveBeenCalled();
+    });
+  });
+
+  describe('when components query throws an error', () => {
+    beforeEach(async () => {
+      mockComponentsResponse.mockRejectedValue();
+      await createComponent();
+    });
+
+    it('calls createAlert with the correct message', () => {
+      expect(createAlert).toHaveBeenCalled();
+      expect(createAlert).toHaveBeenCalledWith({
+        message: "There was an error fetching this resource's components",
+      });
+    });
+
+    it('does not render the loading state', () => {
+      expect(findLoadingIcon().exists()).toBe(false);
+    });
+  });
+
+  describe('when queries have loaded', () => {
+    beforeEach(async () => {
+      await createComponent();
+    });
+
+    it('renders every component', () => {
+      expect(findComponents()).toHaveLength(components.length);
+    });
+
+    it('renders the component name, description and snippet', () => {
+      components.forEach((component) => {
+        expect(wrapper.text()).toContain(component.name);
+        expect(wrapper.text()).toContain(component.description);
+        expect(wrapper.text()).toContain(component.path);
+      });
+    });
+
+    describe('inputs', () => {
+      it('renders the component parameter attributes', () => {
+        const [firstComponent] = components;
+
+        firstComponent.inputs.nodes.forEach((input) => {
+          expect(findComponents().at(0).text()).toContain(input.name);
+          expect(findComponents().at(0).text()).toContain(input.defaultValue);
+          expect(findComponents().at(0).text()).toContain('Yes');
+        });
+      });
+    });
+  });
+});