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Original file line number | Diff line number | Diff line change |
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import { render, screen } from "@testing-library/react"; | ||
import userEvent from "@testing-library/user-event"; | ||
import { act } from "react"; | ||
import { Provider } from "react-redux"; | ||
import createMockStore from "redux-mock-store"; | ||
|
||
import AnnouncementBanner, { | ||
AnnouncementBannerTextId, | ||
} from "components/AnnouncementBanner"; | ||
import { defaultState } from "rootRedux/types"; | ||
|
||
jest.mock("backend", () => ({ | ||
getBannerText: () => mockGetBannerText(), | ||
})); | ||
|
||
const mockBannerText = "I'm a banner!"; | ||
const mockGetBannerText = jest.fn(); | ||
const mockStore = createMockStore()(defaultState); | ||
|
||
const renderAnnouncementBanner = async (bannerText?: string): Promise<void> => { | ||
mockGetBannerText.mockResolvedValue(bannerText ?? ""); | ||
await act(async () => { | ||
render( | ||
<Provider store={mockStore}> | ||
<AnnouncementBanner /> | ||
</Provider> | ||
); | ||
}); | ||
}; | ||
|
||
beforeEach(() => { | ||
jest.clearAllMocks(); | ||
}); | ||
|
||
describe("AnnouncementBanner", () => { | ||
it("doesn't load if no banner text", async () => { | ||
await renderAnnouncementBanner(); | ||
|
||
// Confirm no banner by the absence of its close button | ||
expect( | ||
screen.queryByLabelText(AnnouncementBannerTextId.ButtonClose) | ||
).toBeNull(); | ||
}); | ||
|
||
it("loads banner with text", async () => { | ||
await renderAnnouncementBanner(mockBannerText); | ||
|
||
// Confirm open banner by the presence of its close button and text | ||
expect( | ||
screen.queryByLabelText(AnnouncementBannerTextId.ButtonClose) | ||
).not.toBeNull(); | ||
expect(screen.queryByText(mockBannerText)).not.toBeNull(); | ||
}); | ||
|
||
it("closes when button is clicked", async () => { | ||
// Setup | ||
const agent = userEvent.setup(); | ||
await renderAnnouncementBanner(mockBannerText); | ||
expect(screen.queryByText(mockBannerText)).not.toBeNull(); | ||
|
||
// Click close button | ||
const closeButton = screen.getByLabelText( | ||
AnnouncementBannerTextId.ButtonClose | ||
); | ||
await agent.click(closeButton); | ||
|
||
// Confirm closed | ||
expect( | ||
screen.queryByLabelText(AnnouncementBannerTextId.ButtonClose) | ||
).toBeNull(); | ||
expect(screen.queryByText(mockBannerText)).toBeNull(); | ||
}); | ||
}); |
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2 changes: 1 addition & 1 deletion
2
src/components/App/component.tsx → src/components/App/index.tsx
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