/
skeleton.test.tsx
59 lines (46 loc) · 1.66 KB
/
skeleton.test.tsx
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import * as React from "react"
import { render } from "@chakra-ui/test-utils"
import MatchMediaMock from "jest-matchmedia-mock"
import { extendTheme, ChakraProvider } from "@chakra-ui/react"
import { Skeleton, SkeletonText } from "../src"
import { queries, theme as testTheme } from "./test-data"
const theme = extendTheme(testTheme)
let matchMedia: any
beforeAll(() => {
matchMedia = new MatchMediaMock()
})
afterEach(() => {
matchMedia.clear()
})
test("SkeletonText renders noOfLines respective to the responsive breakpoint", () => {
const desiredNoOfLines = 6
// sm is the second media query after base, so the SkeletonText should have the desired number of lines
const { container } = renderWithQuery(
queries.sm,
<SkeletonText noOfLines={[5, desiredNoOfLines, 7]} />,
)
const skeletonGroup = container.querySelector(".chakra-skeleton__group")
expect(skeletonGroup).not.toBeNull()
expect(skeletonGroup!.childElementCount).toBe(desiredNoOfLines)
})
test("Change in parent state does not cause animation if already loaded", () => {
const TestComponent = () => {
const [, setState] = React.useState(false)
React.useEffect(() => {
setState(true)
}, [])
return (
<ChakraProvider theme={theme}>
<Skeleton isLoaded />
</ChakraProvider>
)
}
const { container } = render(<TestComponent />)
const skeleton = container.querySelector(".chakra-skeleton")
expect(skeleton).not.toBeNull()
expect(skeleton).toHaveStyle({ animation: "none" })
})
function renderWithQuery(query: string, ui: React.ReactElement) {
matchMedia.useMediaQuery(query)
return render(<ChakraProvider theme={theme}>{ui}</ChakraProvider>)
}