Publish curated ForgeFlow source from 2ed1787c0b52

tests/process-error-policy.test.mjs

@@ -0,0 +1,26 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { EventEmitter } from 'node:events';
+import policyModule from '../src/main/process-error-policy.cjs';
+
+const { installOutputPipeGuards, isBrokenPipeError } = policyModule;
+
+test('broken output pipes are recognized without treating unrelated failures as EPIPE', () => {
+  assert.equal(isBrokenPipeError(Object.assign(new Error('closed'), { code: 'EPIPE' })), true);
+  assert.equal(isBrokenPipeError(Object.assign(new Error('denied'), { code: 'EACCES' })), false);
+  assert.equal(isBrokenPipeError(null), false);
+});
+
+test('output pipe guard absorbs EPIPE and can be cleanly removed', () => {
+  const stdout = new EventEmitter();
+  const stderr = new EventEmitter();
+  const observed = [];
+  const remove = installOutputPipeGuards({ stdout, stderr, onBrokenPipe: (error) => observed.push(error.code) });
+
+  stdout.emit('error', Object.assign(new Error('closed'), { code: 'EPIPE' }));
+  stderr.emit('error', Object.assign(new Error('closed'), { code: 'EPIPE' }));
+  assert.deepEqual(observed, ['EPIPE', 'EPIPE']);
+  remove();
+  assert.equal(stdout.listenerCount('error'), 0);
+  assert.equal(stderr.listenerCount('error'), 0);
+});