源码快照 @ 2026-09-01 (source-only, 剔除非源码素材)

packages/agent/gui/agent-gui/agentGuiNode/controller/agentGuiConversationRailRequestRetry.spec.ts

@@ -0,0 +1,45 @@
+import { describe, expect, it } from "vitest";
+import { conversationRailRetryMode } from "./agentGuiConversationRailRequestRetry";
+
+describe("conversationRailRetryMode", () => {
+  it("retries transient upstream failures even when an adapter defaulted retryable to false", () => {
+    expect(
+      conversationRailRetryMode(
+        Object.assign(new Error("upstream unavailable"), {
+          retryable: false,
+          status: 520
+        })
+      )
+    ).toBe("foreground");
+  });
+
+  it("does not retry authorization, parameter, or cancellation failures", () => {
+    expect(conversationRailRetryMode({ status: 400 })).toBeNull();
+    expect(conversationRailRetryMode({ statusCode: 403 })).toBeNull();
+    expect(
+      conversationRailRetryMode({
+        code: "common.invalid_input",
+        name: "TshAppError"
+      })
+    ).toBeNull();
+    expect(
+      conversationRailRetryMode({ code: "control_surface.unauthorized" })
+    ).toBeNull();
+    expect(conversationRailRetryMode({ name: "AbortError" })).toBeNull();
+    expect(conversationRailRetryMode(new Error("mapper failed"))).toBeNull();
+  });
+
+  it("retries only errors with explicit transport or retryable evidence", () => {
+    expect(conversationRailRetryMode(new TypeError("fetch failed"))).toBe(
+      "foreground"
+    );
+    expect(conversationRailRetryMode({ retryable: true })).toBe("foreground");
+  });
+
+  it("defers a second request after the first request timed out", () => {
+    expect(conversationRailRetryMode({ name: "TimeoutError" })).toBe(
+      "background"
+    );
+    expect(conversationRailRetryMode({ status: 504 })).toBe("background");
+  });
+});