web/src/components/PartReactionsCell/PartReactionsCell.js

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+export const QUERY = gql`
+  query PartReactionsQuery {
+    partReactions {
+      id
+      emote
+      user {
+        id
+        name
+      }
+    }
+  }
+`
+
+export const Loading = () => <div>Loading...</div>
+
+export const Empty = () => <div>Empty</div>
+
+export const Failure = ({ error }) => <div>Error: {error.message}</div>
+
+export const Success = ({ partReactions }) => {
+  return JSON.stringify(partReactions)
+}

web/src/components/PartReactionsCell/PartReactionsCell.mock.js

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+// Define your own mock data here:
+export const standard = (/* vars, { ctx, req } */) => ({
+  partReactions: {
+    id: 42,
+  },
+})

web/src/components/PartReactionsCell/PartReactionsCell.stories.js

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+import { Loading, Empty, Failure, Success } from './PartReactionsCell'
+import { standard } from './PartReactionsCell.mock'
+
+export const loading = () => {
+  return Loading ? <Loading /> : null
+}
+
+export const empty = () => {
+  return Empty ? <Empty /> : null
+}
+
+export const failure = () => {
+  return Failure ? <Failure error={new Error('Oh no')} /> : null
+}
+
+export const success = () => {
+  return Success ? <Success {...standard()} /> : null
+}
+
+export default { title: 'Cells/PartReactionsCell' }

web/src/components/PartReactionsCell/PartReactionsCell.test.js

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+import { render, screen } from '@redwoodjs/testing'
+import { Loading, Empty, Failure, Success } from './PartReactionsCell'
+import { standard } from './PartReactionsCell.mock'
+
+describe('PartReactionsCell', () => {
+  test('Loading renders successfully', () => {
+    render(<Loading />)
+    // Use screen.debug() to see output
+    expect(screen.getByText('Loading...')).toBeInTheDocument()
+  })
+
+  test('Empty renders successfully', async () => {
+    render(<Empty />)
+    expect(screen.getByText('Empty')).toBeInTheDocument()
+  })
+
+  test('Failure renders successfully', async () => {
+    render(<Failure error={new Error('Oh no')} />)
+    expect(screen.getByText(/Oh no/i)).toBeInTheDocument()
+  })
+
+  test('Success renders successfully', async () => {
+    render(<Success partReactions={standard().partReactions} />)
+    expect(screen.getByText(/42/i)).toBeInTheDocument()
+  })
+})