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| 1 | +import React from "react"; |
| 2 | +import { render } from "@testing-library/react"; |
| 3 | +import Marker from "../component/Marker"; |
| 4 | + |
| 5 | +// Mock the google maps API |
| 6 | +const mockAddListener = jest.fn().mockImplementation((event, callback) => { |
| 7 | + // Store the callback to simulate click events |
| 8 | + if (event === "click") { |
| 9 | + ( |
| 10 | + mockAddListener as unknown as { |
| 11 | + clickCallback: (...args: unknown[]) => void; |
| 12 | + } |
| 13 | + ).clickCallback = callback; |
| 14 | + } |
| 15 | + |
| 16 | + return "listener-id"; // Return a mock listener ID |
| 17 | +}); |
| 18 | + |
| 19 | +const mockRemoveListener = jest.fn(); |
| 20 | +const mockSetMap = jest.fn(); |
| 21 | +const mockSetIcon = jest.fn(); |
| 22 | +const mockSetPosition = jest.fn(); |
| 23 | +const mockSetTitle = jest.fn(); |
| 24 | + |
| 25 | +// Add type declaration for the global google object |
| 26 | +declare global { |
| 27 | + interface Window { |
| 28 | + google: unknown; |
| 29 | + } |
| 30 | +} |
| 31 | + |
| 32 | +// Mock the google object |
| 33 | +(global as unknown as { google: unknown }).google = { |
| 34 | + maps: { |
| 35 | + Marker: jest.fn().mockImplementation(() => ({ |
| 36 | + setMap: mockSetMap, |
| 37 | + setIcon: mockSetIcon, |
| 38 | + setPosition: mockSetPosition, |
| 39 | + setTitle: mockSetTitle, |
| 40 | + addListener: mockAddListener, |
| 41 | + })), |
| 42 | + Point: jest.fn().mockImplementation((x, y) => ({ x, y })), |
| 43 | + event: { |
| 44 | + clearListeners: jest.fn(), |
| 45 | + removeListener: mockRemoveListener, |
| 46 | + }, |
| 47 | + }, |
| 48 | +}; |
| 49 | + |
| 50 | +describe("Map Widget - Marker Component", () => { |
| 51 | + beforeEach(() => { |
| 52 | + jest.clearAllMocks(); |
| 53 | + }); |
| 54 | + |
| 55 | + it("should trigger onClick callback only once per click", () => { |
| 56 | + const onClickMock = jest.fn(); |
| 57 | + |
| 58 | + // Render the marker component with onClick handler |
| 59 | + render( |
| 60 | + <Marker |
| 61 | + onClick={onClickMock} |
| 62 | + position={{ lat: 37.7749, lng: -122.4194 }} |
| 63 | + title="Test Marker" |
| 64 | + />, |
| 65 | + ); |
| 66 | + |
| 67 | + // Simulate a marker click by directly calling the stored callback |
| 68 | + ( |
| 69 | + mockAddListener as unknown as { |
| 70 | + clickCallback: (...args: unknown[]) => void; |
| 71 | + } |
| 72 | + ).clickCallback(); |
| 73 | + |
| 74 | + // Verify onClick was called exactly once |
| 75 | + expect(onClickMock).toHaveBeenCalledTimes(1); |
| 76 | + |
| 77 | + // Simulate another click |
| 78 | + ( |
| 79 | + mockAddListener as unknown as { |
| 80 | + clickCallback: (...args: unknown[]) => void; |
| 81 | + } |
| 82 | + ).clickCallback(); |
| 83 | + |
| 84 | + // Verify onClick was called exactly twice (once per click) |
| 85 | + expect(onClickMock).toHaveBeenCalledTimes(2); |
| 86 | + }); |
| 87 | + |
| 88 | + it("should clear previous click listeners when onClick prop changes", () => { |
| 89 | + const { rerender } = render( |
| 90 | + <Marker |
| 91 | + onClick={jest.fn()} |
| 92 | + position={{ lat: 37.7749, lng: -122.4194 }} |
| 93 | + title="Test Marker" |
| 94 | + />, |
| 95 | + ); |
| 96 | + |
| 97 | + // Verify clearListeners was called during initial render |
| 98 | + expect(google.maps.event.clearListeners).toHaveBeenCalledWith( |
| 99 | + expect.anything(), |
| 100 | + "click", |
| 101 | + ); |
| 102 | + |
| 103 | + // Reset the mock to check if it's called again |
| 104 | + (google.maps.event.clearListeners as jest.Mock).mockClear(); |
| 105 | + |
| 106 | + // Rerender with a different onClick handler |
| 107 | + rerender( |
| 108 | + <Marker |
| 109 | + onClick={jest.fn()} |
| 110 | + position={{ lat: 37.7749, lng: -122.4194 }} |
| 111 | + title="Test Marker" |
| 112 | + />, |
| 113 | + ); |
| 114 | + |
| 115 | + // Verify clearListeners was called again when onClick changed |
| 116 | + expect(google.maps.event.clearListeners).toHaveBeenCalledWith( |
| 117 | + expect.anything(), |
| 118 | + "click", |
| 119 | + ); |
| 120 | + }); |
| 121 | +}); |
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