Files
suaveplan/packages/api-stack/api/api-plugin-cms/tests/setup/polyfills.ts
2026-05-27 23:29:53 +01:00

37 lines
1.1 KiB
TypeScript

/**
* Test setup for @suaveplan/api-plugin-cms.
*
* Installs a real in-memory OpenTelemetry MeterProvider BEFORE any source
* module imports so the meter resolved on first call binds to it. The
* exporter is held in module scope so `flushTestMetrics()` can return
* deterministic snapshots inside each test.
*/
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(): Promise<
ReturnType<typeof testInMemoryMetricExporter.getMetrics>
> {
await testMeterProvider.forceFlush();
const collected = testInMemoryMetricExporter.getMetrics();
testInMemoryMetricExporter.reset();
return collected;
}