feat(overlay): run session help commands with Enter or double-click (#275)

src/renderer/utils/mpv-command-dispatch.test.ts

@@ -0,0 +1,58 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+
+import { dispatchConfiguredMpvCommand } from './mpv-command-dispatch';
+
+async function dispatch(command: (string | number)[], paused: boolean | null | Error) {
+  const sent: (string | number)[][] = [];
+  dispatchConfiguredMpvCommand(command, {
+    getPlaybackPaused: async () => {
+      if (paused instanceof Error) throw paused;
+      return paused;
+    },
+    sendMpvCommand: (mpvCommand) => sent.push(mpvCommand),
+  });
+  await new Promise((resolve) => setTimeout(resolve, 0));
+  return sent;
+}
+
+test('subtitle seeks keep paused or unknown playback paused', async () => {
+  const repaused = [
+    ['sub-seek', 1],
+    ['set_property', 'pause', 'yes'],
+  ];
+  assert.deepEqual(await dispatch(['sub-seek', 1], true), repaused);
+  assert.deepEqual(await dispatch(['sub-seek', 1], null), repaused);
+});
+
+test('subtitle seeks leave running playback alone', async () => {
+  assert.deepEqual(await dispatch(['sub-seek', -1], false), [['sub-seek', -1]]);
+  assert.deepEqual(await dispatch(['sub-seek', -1], new Error('ipc down')), [['sub-seek', -1]]);
+});
+
+test('other mpv commands are sent as-is', async () => {
+  assert.deepEqual(await dispatch(['cycle', 'pause'], true), [['cycle', 'pause']]);
+});
+
+test('a failed re-pause does not resend the subtitle seek', async () => {
+  const sent: (string | number)[][] = [];
+  const originalConsoleError = console.error;
+  console.error = () => {};
+  try {
+    dispatchConfiguredMpvCommand(['sub-seek', 1], {
+      getPlaybackPaused: async () => true,
+      sendMpvCommand: (command) => {
+        sent.push(command);
+        if (command[0] === 'set_property') throw new Error('ipc closed');
+      },
+    });
+    await new Promise((resolve) => setTimeout(resolve, 0));
+  } finally {
+    console.error = originalConsoleError;
+  }
+
+  assert.deepEqual(sent, [
+    ['sub-seek', 1],
+    ['set_property', 'pause', 'yes'],
+  ]);
+});