源码快照 @ 2026-09-02 (source-only, 剔除非源码素材)

apps/desktop/electron/stdio-errors.test.mjs

@@ -0,0 +1,42 @@
+import { describe, it } from "node:test";
+import assert from "node:assert/strict";
+import { EventEmitter } from "node:events";
+
+import { installStdioErrorHandlers, isBrokenPipeError } from "./stdio-errors.mjs";
+
+/**
+ * @param {string} code
+ * @returns {Error & { code: string }}
+ */
+function streamError(code) {
+  return Object.assign(new Error(code === "EPIPE" ? "write EPIPE" : "stream failed"), { code });
+}
+
+describe("stdio error handling", () => {
+  it("identifies broken pipe errors", () => {
+    assert.equal(isBrokenPipeError(streamError("EPIPE")), true);
+    assert.equal(isBrokenPipeError(streamError("ECONNRESET")), false);
+    assert.equal(isBrokenPipeError(null), false);
+  });
+
+  it("swallows stdio EPIPE and preserves other stream errors", () => {
+    const stdout = new EventEmitter();
+    const stderr = new EventEmitter();
+
+    installStdioErrorHandlers({ stdout, stderr });
+
+    assert.doesNotThrow(() => stdout.emit("error", streamError("EPIPE")));
+    assert.throws(() => stderr.emit("error", streamError("ECONNRESET")), /stream failed/);
+  });
+
+  it("does not install duplicate handlers on the same stream", () => {
+    const stdout = new EventEmitter();
+    const stderr = new EventEmitter();
+
+    installStdioErrorHandlers({ stdout, stderr });
+    installStdioErrorHandlers({ stdout, stderr });
+
+    assert.equal(stdout.listenerCount("error"), 1);
+    assert.equal(stderr.listenerCount("error"), 1);
+  });
+});