refactor(src): split oversized modules

src/agents/pi-embedded-helpers.classifyfailoverreason.test.ts

@@ -0,0 +1,43 @@
+import { describe, expect, it } from "vitest";
+import { classifyFailoverReason } from "./pi-embedded-helpers.js";
+import { DEFAULT_AGENTS_FILENAME } from "./workspace.js";
+
+const _makeFile = (
+  overrides: Partial<WorkspaceBootstrapFile>,
+): WorkspaceBootstrapFile => ({
+  name: DEFAULT_AGENTS_FILENAME,
+  path: "/tmp/AGENTS.md",
+  content: "",
+  missing: false,
+  ...overrides,
+});
+describe("classifyFailoverReason", () => {
+  it("returns a stable reason", () => {
+    expect(classifyFailoverReason("invalid api key")).toBe("auth");
+    expect(classifyFailoverReason("no credentials found")).toBe("auth");
+    expect(classifyFailoverReason("no api key found")).toBe("auth");
+    expect(classifyFailoverReason("429 too many requests")).toBe("rate_limit");
+    expect(classifyFailoverReason("resource has been exhausted")).toBe(
+      "rate_limit",
+    );
+    expect(
+      classifyFailoverReason(
+        '{"type":"error","error":{"type":"overloaded_error","message":"Overloaded"}}',
+      ),
+    ).toBe("rate_limit");
+    expect(classifyFailoverReason("invalid request format")).toBe("format");
+    expect(classifyFailoverReason("credit balance too low")).toBe("billing");
+    expect(classifyFailoverReason("deadline exceeded")).toBe("timeout");
+    expect(classifyFailoverReason("string should match pattern")).toBe(
+      "format",
+    );
+    expect(classifyFailoverReason("bad request")).toBeNull();
+  });
+  it("classifies OpenAI usage limit errors as rate_limit", () => {
+    expect(
+      classifyFailoverReason(
+        "You have hit your ChatGPT usage limit (plus plan)",
+      ),
+    ).toBe("rate_limit");
+  });
+});