moving

vitest.setup.ts

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+/**
+ * Vitest global setup — loads .env file into process.env for server tests
+ * that need DATABASE_URL, REDIS_URL, CLERK_SECRET_KEY, etc.
+ * No external dependencies (no dotenv required).
+ */
+import { readFileSync } from 'node:fs';
+import { resolve } from 'node:path';
+
+// Phase 5 canary — pin to 0 (canary OFF) for tests. Production code-default
+// post-kick-off (2026-04-30) is 10; tests need explicit OFF so shape-selection
+// assertions stay deterministic across runs. CI / dev env can still override.
+// Audit: gepa-phase-5/manifest.yaml § canary_toggle.
+if (!process.env.WAGGLE_PHASE5_CANARY_PCT) {
+  process.env.WAGGLE_PHASE5_CANARY_PCT = '0';
+}
+
+// W4.5: the cross-encoder reranker is default-ON in production (kill switch
+// WAGGLE_RERANKER=0). Tests pin it OFF — the real ONNX model is a ~22MB
+// download + per-call CPU inference, both unwanted in unit suites. Tests
+// that exercise reranking inject a mock Reranker via OrchestratorConfig.
+if (!process.env.WAGGLE_RERANKER) {
+  process.env.WAGGLE_RERANKER = '0';
+}
+
+// W4 (2026-06-11): the PromptAssembler is default-ON in production (kill
+// switch WAGGLE_PROMPT_ASSEMBLER=0) after the live chat smoke. Tests pin it
+// OFF so the broad chat-route suite keeps exercising the stable legacy
+// buildSystemPrompt path (prompt-cache assertions, deterministic shapes);
+// assembler behavior has its own dedicated suites that opt in explicitly.
+if (!process.env.WAGGLE_PROMPT_ASSEMBLER) {
+  process.env.WAGGLE_PROMPT_ASSEMBLER = '0';
+}
+
+// D1 (2026-06-12): chunk-level retrieval is default-ON in production (kill
+// switch WAGGLE_CHUNK_RETRIEVAL=0) after the long-frame needle probe. Tests
+// pin it OFF — the broad suites' retrieval assertions predate the chunk lane;
+// chunk behavior has its own suite (search-chunks.test.ts) that opts in.
+if (!process.env.WAGGLE_CHUNK_RETRIEVAL) {
+  process.env.WAGGLE_CHUNK_RETRIEVAL = '0';
+}
+
+// D1: the local sidecar now requires a bearer token even on loopback in production
+// (no localhost-trust). The broad server suite predates this and uses raw inject()
+// without tokens, so default tests to localhost-trust mode. Production keeps the
+// SECURE default (no env). The dedicated D1 auth tests set WAGGLE_TRUST_LOCALHOST='0'
+// to exercise the real secure path. CI/dev can override.
+if (!process.env.WAGGLE_TRUST_LOCALHOST) {
+  process.env.WAGGLE_TRUST_LOCALHOST = '1';
+}
+
+// Pin the embedding provider to 'mock' for tests. The auto-fallback chain
+// (embedding-provider.ts) probes the in-process @xenova/transformers model
+// FIRST — it fails to init on some dev machines (-> mock) but succeeds on CI
+// Linux (-> 'inprocess'), making getActiveProvider() platform-dependent and
+// breaking mock-embedder-guard assertions (plus downloading ~87MB of model
+// weights into the test data dir). 'mock' short-circuits the chain
+// deterministically: no network, no native model load. Read by
+// WaggleConfig.getEmbeddingConfig(); CI/dev can still override.
+if (!process.env.EMBEDDING_PROVIDER) {
+  process.env.EMBEDDING_PROVIDER = 'mock';
+}
+
+// Mock embeddings are intentional in deterministic tests; the production
+// warning remains enabled unless a caller explicitly opts into this test flag.
+if (!process.env.WAGGLE_SUPPRESS_EMBEDDING_WARNING) {
+  process.env.WAGGLE_SUPPRESS_EMBEDDING_WARNING = '1';
+}
+
+try {
+  const content = readFileSync(resolve(process.cwd(), '.env'), 'utf-8');
+  for (const line of content.split('\n')) {
+    const trimmed = line.trim();
+    if (!trimmed || trimmed.startsWith('#')) continue;
+    const eq = trimmed.indexOf('=');
+    if (eq < 0) continue;
+    const key = trimmed.slice(0, eq).trim();
+    const val = trimmed.slice(eq + 1).trim();
+    // Don't override existing env vars (CLI > .env)
+    if (!process.env[key]) {
+      process.env[key] = val;
+    }
+  }
+} catch {
+  // .env not found — tests will use fallback config values
+}