// Error-format helper tests cover the non-Error cause stringifier contract.
import { describe, expect, it } from "vitest";
import {
  configureAcpErrorRedactor,
  redactSensitiveText,
  stringifyNonErrorCause,
} from "./error-format.js";

describe("stringifyNonErrorCause", () => {
  it("returns a string for values JSON.stringify serializes to undefined", () => {
    // JSON.stringify(fn|symbol|undefined) is undefined; the `string`-typed helper must not leak it.
    expect(stringifyNonErrorCause(() => {})).toBe("[object Function]");
    expect(stringifyNonErrorCause(Symbol("x"))).toBe("[object Symbol]");
    expect(stringifyNonErrorCause(undefined)).toBe("[object Undefined]");
  });

  it("stringifies ordinary scalar and object causes", () => {
    expect(stringifyNonErrorCause({ a: 1 })).toBe('{"a":1}');
    expect(stringifyNonErrorCause("hi")).toBe("hi");
    expect(stringifyNonErrorCause(42)).toBe("42");
    expect(stringifyNonErrorCause(null)).toBe("null");
  });
});

describe("redactSensitiveText", () => {
  it("applies fallback secret redaction after a configured redactor", () => {
    configureAcpErrorRedactor((value) => value.replace("prefix", "host-redacted"));
    try {
      expect(redactSensitiveText("prefix ghp_123456789012345678901234")).toBe(
        "host-redacted [REDACTED]",
      );
    } finally {
      configureAcpErrorRedactor(undefined);
    }
  });
});