my-pi/pi-compaction/test/config.test.ts

import test from "node:test";
import assert from "node:assert/strict";
import { DEFAULT_CONFIG, normalizeConfig } from "../src/config.ts";

test("normalizes one greenfield piCompaction config without legacy aliases", () => {
  const config = normalizeConfig({
    enabled: false,
    softRatio: 0.7,
    hardRatio: 0.91,
    targetRatio: 0.5,
    deterministic: { enabled: false, maxStubTokens: 512 },
    semantic: { enabled: false, concurrency: 2, maxRetries: 0 },
    native: { enabled: false },
  });
  assert.equal(config.enabled, false);
  assert.equal(config.deterministic.enabled, false);
  assert.equal(config.deterministic.maxStubTokens, 512);
  assert.equal(config.semantic.enabled, false);
  assert.equal(config.semantic.maxRetries, 0);
  assert.equal(config.native.enabled, false);
});

test("invalid ratios and bounds fail safe to bounded defaults", () => {
  const config = normalizeConfig({
    softRatio: 2,
    hardRatio: -1,
    targetRatio: 0.99,
    semantic: { concurrency: 50, maxRetries: -1 },
  });
  assert.equal(config.softRatio, DEFAULT_CONFIG.softRatio);
  assert.ok(config.targetRatio < config.softRatio);
  assert.ok(config.hardRatio > config.softRatio);
  assert.equal(config.semantic.concurrency, DEFAULT_CONFIG.semantic.concurrency);
  assert.equal(config.semantic.maxRetries, DEFAULT_CONFIG.semantic.maxRetries);
});