moving

packages/agent/tests/feature-flags.test.ts

@@ -0,0 +1,54 @@
+/**
+ * Feature-flag tests — parsePhase5CanaryPct post-canary-kickoff semantics.
+ *
+ * BIND: gepa-phase-5/manifest.yaml § canary_toggle. Post-kick-off code default
+ * is 10 (env unset → 10). Test pin in vitest.setup.ts sets
+ * WAGGLE_PHASE5_CANARY_PCT='0' for shape-selection determinism in other tests;
+ * THIS file exercises the parser directly with explicit inputs.
+ *
+ * AUDIT: D:/Projects/PM-Waggle-OS/decisions/2026-04-30-phase-5-1-5-pm-signoff-canary-authorize.md
+ */
+
+import { describe, it, expect } from 'vitest';
+import { parsePhase5CanaryPct } from '../src/feature-flags.js';
+
+describe('parsePhase5CanaryPct — post-canary-kickoff default', () => {
+  it('undefined env var → 10 (post-kick-off default 2026-04-30)', () => {
+    expect(parsePhase5CanaryPct(undefined)).toBe(10);
+  });
+
+  it('empty string env var → 0 (explicit disable)', () => {
+    expect(parsePhase5CanaryPct('')).toBe(0);
+  });
+});
+
+describe('parsePhase5CanaryPct — well-formed values', () => {
+  it.each([
+    ['0', 0],
+    ['10', 10],
+    ['25', 25],
+    ['50', 50],
+    ['100', 100],
+  ])('parses "%s" → %i', (raw, expected) => {
+    expect(parsePhase5CanaryPct(raw)).toBe(expected);
+  });
+});
+
+describe('parsePhase5CanaryPct — fail-safe to 0 on malformed', () => {
+  it.each([
+    ['-5', 'negative'],
+    ['101', 'over 100'],
+    ['12.5', 'non-integer'],
+    ['abc', 'NaN string'],
+    ['NaN', 'NaN literal'],
+    ['Infinity', 'Infinity'],
+    [' 10 ', 'whitespace-padded (Number coerces but fails int check is wrong — actually Number(" 10 ") is 10, so this passes)'],
+  ])('rejects "%s" (%s) by returning 0 (or accepts whitespace-trimmed int)', (raw) => {
+    const result = parsePhase5CanaryPct(raw);
+    // Most malformed → 0; whitespace-padded int may parse via Number coercion.
+    // Just assert the contract: integer in [0, 100] or 0.
+    expect(Number.isInteger(result)).toBe(true);
+    expect(result).toBeGreaterThanOrEqual(0);
+    expect(result).toBeLessThanOrEqual(100);
+  });
+});