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| 1 | +import { EventEmitter } from "node:events"; |
| 2 | + |
| 3 | +import { describe, expect, it, vi } from "vitest"; |
| 4 | + |
| 5 | +import { bindFirstRevealTrigger } from "./windowReveal.ts"; |
| 6 | + |
| 7 | +describe("bindFirstRevealTrigger", () => { |
| 8 | + it("reveals when the first trigger fires", () => { |
| 9 | + const window = new EventEmitter(); |
| 10 | + const webContents = new EventEmitter(); |
| 11 | + const reveal = vi.fn(); |
| 12 | + |
| 13 | + bindFirstRevealTrigger( |
| 14 | + [ |
| 15 | + (fire) => window.once("ready-to-show", fire), |
| 16 | + (fire) => webContents.once("did-finish-load", fire), |
| 17 | + ], |
| 18 | + reveal, |
| 19 | + ); |
| 20 | + |
| 21 | + window.emit("ready-to-show"); |
| 22 | + |
| 23 | + expect(reveal).toHaveBeenCalledTimes(1); |
| 24 | + }); |
| 25 | + |
| 26 | + it("reveals when only the fallback trigger fires (Wayland deadlock case)", () => { |
| 27 | + const window = new EventEmitter(); |
| 28 | + const webContents = new EventEmitter(); |
| 29 | + const reveal = vi.fn(); |
| 30 | + |
| 31 | + bindFirstRevealTrigger( |
| 32 | + [ |
| 33 | + (fire) => window.once("ready-to-show", fire), |
| 34 | + (fire) => webContents.once("did-finish-load", fire), |
| 35 | + ], |
| 36 | + reveal, |
| 37 | + ); |
| 38 | + |
| 39 | + webContents.emit("did-finish-load"); |
| 40 | + |
| 41 | + expect(reveal).toHaveBeenCalledTimes(1); |
| 42 | + }); |
| 43 | + |
| 44 | + it("only reveals once when multiple triggers fire", () => { |
| 45 | + const window = new EventEmitter(); |
| 46 | + const webContents = new EventEmitter(); |
| 47 | + const reveal = vi.fn(); |
| 48 | + |
| 49 | + bindFirstRevealTrigger( |
| 50 | + [ |
| 51 | + (fire) => window.once("ready-to-show", fire), |
| 52 | + (fire) => webContents.once("did-finish-load", fire), |
| 53 | + ], |
| 54 | + reveal, |
| 55 | + ); |
| 56 | + |
| 57 | + webContents.emit("did-finish-load"); |
| 58 | + window.emit("ready-to-show"); |
| 59 | + |
| 60 | + expect(reveal).toHaveBeenCalledTimes(1); |
| 61 | + }); |
| 62 | + |
| 63 | + it("subscribers using `once` ignore re-emitted events after reveal", () => { |
| 64 | + const window = new EventEmitter(); |
| 65 | + const reveal = vi.fn(); |
| 66 | + |
| 67 | + bindFirstRevealTrigger([(fire) => window.once("ready-to-show", fire)], reveal); |
| 68 | + |
| 69 | + window.emit("ready-to-show"); |
| 70 | + window.emit("ready-to-show"); |
| 71 | + |
| 72 | + expect(reveal).toHaveBeenCalledTimes(1); |
| 73 | + }); |
| 74 | +}); |
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