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| 1 | +import React, { ReactElement } from "react"; |
| 2 | +import cn from "classnames"; |
| 3 | +import { fireEvent, render } from "@testing-library/react"; |
| 4 | + |
| 5 | +import { DropzoneHanders, useDropzone } from "../useDropzone"; |
| 6 | + |
| 7 | +function Test(props: DropzoneHanders<HTMLElement>): ReactElement { |
| 8 | + const [isOver, handlers] = useDropzone(props); |
| 9 | + |
| 10 | + return ( |
| 11 | + <div |
| 12 | + data-testid="dropzone" |
| 13 | + {...handlers} |
| 14 | + className={cn(isOver && "over")} |
| 15 | + /> |
| 16 | + ); |
| 17 | +} |
| 18 | + |
| 19 | +describe("useDropzone", () => { |
| 20 | + it("should work correctly", () => { |
| 21 | + const onDragOver = jest.fn(); |
| 22 | + const onDragEnter = jest.fn(); |
| 23 | + const onDragLeave = jest.fn(); |
| 24 | + const onDrop = jest.fn(); |
| 25 | + |
| 26 | + const { getByTestId } = render( |
| 27 | + <Test |
| 28 | + onDragLeave={onDragLeave} |
| 29 | + onDragEnter={onDragEnter} |
| 30 | + onDragOver={onDragOver} |
| 31 | + onDrop={onDrop} |
| 32 | + /> |
| 33 | + ); |
| 34 | + const dropzone = getByTestId("dropzone"); |
| 35 | + expect(dropzone).not.toHaveClass("over"); |
| 36 | + expect(onDragOver).not.toBeCalled(); |
| 37 | + expect(onDragEnter).not.toBeCalled(); |
| 38 | + expect(onDragLeave).not.toBeCalled(); |
| 39 | + expect(onDrop).not.toBeCalled(); |
| 40 | + |
| 41 | + fireEvent.dragEnter(dropzone); |
| 42 | + expect(dropzone).toHaveClass("over"); |
| 43 | + expect(onDragOver).not.toBeCalled(); |
| 44 | + expect(onDragEnter).toBeCalled(); |
| 45 | + expect(onDragLeave).not.toBeCalled(); |
| 46 | + expect(onDrop).not.toBeCalled(); |
| 47 | + |
| 48 | + fireEvent.dragLeave(dropzone); |
| 49 | + expect(dropzone).not.toHaveClass("over"); |
| 50 | + expect(onDragOver).not.toBeCalled(); |
| 51 | + expect(onDragEnter).toBeCalled(); |
| 52 | + expect(onDragLeave).toBeCalled(); |
| 53 | + expect(onDrop).not.toBeCalled(); |
| 54 | + |
| 55 | + fireEvent.dragOver(dropzone); |
| 56 | + expect(dropzone).toHaveClass("over"); |
| 57 | + expect(onDragOver).toBeCalled(); |
| 58 | + expect(onDragEnter).toBeCalled(); |
| 59 | + expect(onDragLeave).toBeCalled(); |
| 60 | + expect(onDrop).not.toBeCalled(); |
| 61 | + |
| 62 | + fireEvent.drop(dropzone); |
| 63 | + expect(dropzone).not.toHaveClass("over"); |
| 64 | + expect(onDragOver).toBeCalled(); |
| 65 | + expect(onDragEnter).toBeCalled(); |
| 66 | + expect(onDragLeave).toBeCalled(); |
| 67 | + expect(onDrop).toBeCalled(); |
| 68 | + }); |
| 69 | + |
| 70 | + it("should prevent default and stop propagation", () => { |
| 71 | + const onDragOver = jest.fn(); |
| 72 | + const onDragEnter = jest.fn(); |
| 73 | + const onDragLeave = jest.fn(); |
| 74 | + const onDrop = jest.fn(); |
| 75 | + const { getByTestId } = render( |
| 76 | + <div |
| 77 | + data-testid="container" |
| 78 | + onDragLeave={onDragLeave} |
| 79 | + onDragEnter={onDragEnter} |
| 80 | + onDragOver={onDragOver} |
| 81 | + onDrop={onDrop} |
| 82 | + > |
| 83 | + <Test /> |
| 84 | + </div> |
| 85 | + ); |
| 86 | + |
| 87 | + const dropzone = getByTestId("dropzone"); |
| 88 | + fireEvent.dragEnter(dropzone); |
| 89 | + fireEvent.dragLeave(dropzone); |
| 90 | + fireEvent.dragOver(dropzone); |
| 91 | + fireEvent.drop(dropzone); |
| 92 | + |
| 93 | + expect(onDragOver).not.toBeCalled(); |
| 94 | + expect(onDragEnter).not.toBeCalled(); |
| 95 | + expect(onDragLeave).not.toBeCalled(); |
| 96 | + expect(onDrop).not.toBeCalled(); |
| 97 | + }); |
| 98 | +}); |
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