53 lines
1.7 KiB
TypeScript
53 lines
1.7 KiB
TypeScript
import { describe, it, expect, vi } from "vitest";
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import { PassThrough } from "node:stream";
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// Mock spawn to avoid calling real ffmpeg
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vi.mock("node:child_process", async () => {
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const actual = await vi.importActual("node:child_process");
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return {
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...actual,
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spawn: (cmd: string, args: string[], opts: any) => {
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const stdout = new PassThrough();
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const stderr = new PassThrough();
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const listeners: Record<string, Function[]> = {};
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const proc: any = {
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stdout,
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stderr,
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kill: vi.fn(() => {
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// emit exit when killed
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(listeners.exit || []).forEach((fn) => fn(0, "SIGKILL"));
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}),
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on: (ev: string, fn: Function) => {
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listeners[ev] = listeners[ev] || [];
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listeners[ev].push(fn);
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},
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off: (ev: string, fn: Function) => {
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listeners[ev] = (listeners[ev] || []).filter((f) => f !== fn);
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},
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stdoutWrite: (d: Buffer | string) => stdout.write(d),
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};
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// simulate async start
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setTimeout(() => {
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(listeners.exit || []).forEach((fn) => fn(null, null));
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}, 10);
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return proc;
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},
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};
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});
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import { prepareTranscoder } from "../../src/streaming/transcoder";
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describe("Transcoder", () => {
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it("starts ffmpeg and returns output stream and command", () => {
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const { transcoder, command, output } = prepareTranscoder("http://example.test/video", { fps: 24 });
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expect(transcoder).toBeTruthy();
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expect(command).toBeTruthy();
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expect(output).toBeTruthy();
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expect(typeof command.kill).toBe("function");
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// write some data and ensure output is readable
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const wrote = command.stdoutWrite?.("hello");
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expect(output.readable).toBe(true);
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transcoder.stop();
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});
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});
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