Initial Commit

packages/identity/auth/better-auth-surrealdb/tests/setup/polyfills.ts

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+/**
+ * Test setup for @suaveplan/better-auth-surrealdb.
+ *
+ * Wires a real in-memory OpenTelemetry `MeterProvider` BEFORE any source
+ * module is imported so the meter resolved at module-load (well, at first
+ * call given the lazy-init pattern) is the real provider's meter.
+ *
+ * Node ≥18 + Bun expose `crypto.subtle` / `crypto.getRandomValues` globally,
+ * so no crypto polyfill is required.
+ */
+import { metrics } from "@opentelemetry/api";
+import {
+    AggregationTemporality,
+    InMemoryMetricExporter,
+    MeterProvider,
+    PeriodicExportingMetricReader,
+} from "@opentelemetry/sdk-metrics";
+
+export const testInMemoryMetricExporter = new InMemoryMetricExporter(
+    AggregationTemporality.CUMULATIVE
+);
+
+const reader = new PeriodicExportingMetricReader({
+    exporter: testInMemoryMetricExporter,
+    exportIntervalMillis: 60_000,
+});
+
+export const testMeterProvider = new MeterProvider({ readers: [reader] });
+metrics.setGlobalMeterProvider(testMeterProvider);
+
+export async function flushTestMetrics() {
+    await testMeterProvider.forceFlush();
+    const collected = testInMemoryMetricExporter.getMetrics();
+    testInMemoryMetricExporter.reset();
+    return collected;
+}