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test/reconfigure.test.js

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+'use strict';
+
+const { CameraSwitch } = require('../src/cameraSwitch');
+
+// Mockt die FFmpeg-berührenden Methoden – getestet wird NUR die
+// Entscheidungslogik von reconfigure() (kill/spawn/no-op), keine Hardware.
+function makeSwitch(opts = {}) {
+  const sw = new CameraSwitch({ id: 'camT', device: '/dev/null', liveSize: '640x480', ...opts });
+  sw._killCurrentAndWait = jest.fn(() => { sw.proc = null; sw.state = 'stopped'; return Promise.resolve(); });
+  sw._spawnLive = jest.fn(() => { sw.proc = {}; sw.state = 'live'; });
+  return sw;
+}
+
+describe('CameraSwitch.reconfigure', () => {
+  test('geänderte liveSize → genau 1× kill + 1× spawn', async () => {
+    const sw = makeSwitch({ onDemand: false });
+    sw.proc = {}; sw.state = 'live';
+    await sw.reconfigure({ liveSize: '320x240', stream: true });
+    expect(sw.liveSize).toBe('320x240');
+    expect(sw._killCurrentAndWait).toHaveBeenCalledTimes(1);
+    expect(sw._spawnLive).toHaveBeenCalledTimes(1);
+  });
+
+  test('gleiche liveSize → no-op (kein kill, kein spawn)', async () => {
+    const sw = makeSwitch({ onDemand: false });
+    sw.proc = {}; sw.state = 'live';
+    await sw.reconfigure({ liveSize: '640x480', stream: true });
+    expect(sw._killCurrentAndWait).not.toHaveBeenCalled();
+    expect(sw._spawnLive).not.toHaveBeenCalled();
+  });
+
+  test('lock aktiv (HD-Grab) → nur Feld setzen, kein kill/spawn', async () => {
+    const sw = makeSwitch({ onDemand: false });
+    sw.lock = true; sw.proc = {}; sw.state = 'grabbing';
+    await sw.reconfigure({ liveSize: '320x240', stream: true });
+    expect(sw.liveSize).toBe('320x240');
+    expect(sw._killCurrentAndWait).not.toHaveBeenCalled();
+    expect(sw._spawnLive).not.toHaveBeenCalled();
+  });
+
+  test('stream:false → kill, KEIN respawn, streamEnabled=false', async () => {
+    const sw = makeSwitch({ onDemand: false });
+    sw.proc = {}; sw.state = 'live';
+    await sw.reconfigure({ stream: false });
+    expect(sw._killCurrentAndWait).toHaveBeenCalledTimes(1);
+    expect(sw._spawnLive).not.toHaveBeenCalled();
+    expect(sw.streamEnabled).toBe(false);
+  });
+
+  test('On-Demand ohne Verbraucher → kill bei Resize, aber kein spawn', async () => {
+    const sw = makeSwitch({ onDemand: true });
+    sw.subscribers = 0;
+    sw.proc = {}; sw.state = 'live';
+    await sw.reconfigure({ liveSize: '320x240', stream: true });
+    expect(sw._killCurrentAndWait).toHaveBeenCalledTimes(1);
+    expect(sw._spawnLive).not.toHaveBeenCalled();
+  });
+
+  test('On-Demand mit Verbraucher → kill + spawn (nahtloser Resize)', async () => {
+    const sw = makeSwitch({ onDemand: true });
+    sw.subscribers = 1;
+    sw.proc = {}; sw.state = 'live';
+    await sw.reconfigure({ liveSize: '320x240', stream: true });
+    expect(sw._killCurrentAndWait).toHaveBeenCalledTimes(1);
+    expect(sw._spawnLive).toHaveBeenCalledTimes(1);
+  });
+
+  test('Wiedereinschalten (stream:true) startet bei vorhandenem Verbraucher', async () => {
+    const sw = makeSwitch({ onDemand: true, stream: false });
+    sw.subscribers = 1; sw.state = 'stopped'; sw.proc = null;
+    await sw.reconfigure({ liveSize: '320x240', stream: true });
+    expect(sw.streamEnabled).toBe(true);
+    expect(sw._spawnLive).toHaveBeenCalledTimes(1);
+  });
+});