refactor(src): split oversized modules

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

@@ -0,0 +1,33 @@
+import { describe, expect, it } from "vitest";
+import { isBillingErrorMessage } 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("isBillingErrorMessage", () => {
+  it("matches credit / payment failures", () => {
+    const samples = [
+      "Your credit balance is too low to access the Anthropic API.",
+      "insufficient credits",
+      "Payment Required",
+      "HTTP 402 Payment Required",
+      "plans & billing",
+      "billing: please upgrade your plan",
+    ];
+    for (const sample of samples) {
+      expect(isBillingErrorMessage(sample)).toBe(true);
+    }
+  });
+  it("ignores unrelated errors", () => {
+    expect(isBillingErrorMessage("rate limit exceeded")).toBe(false);
+    expect(isBillingErrorMessage("invalid api key")).toBe(false);
+    expect(isBillingErrorMessage("context length exceeded")).toBe(false);
+  });
+});