testable

ingestion/tests/k6/track.js

@@ -0,0 +1,83 @@
+// k6 load test — POST /v1/track against the local cdp-ingest service.
+//
+// Usage:
+//   brew install k6                # one-time
+//   k6 run tests/k6/track.js       # defaults: 50 CCU, 1m
+//
+// Override at the CLI:
+//   k6 run -e WRITE_KEY=xxx -e BASE=http://localhost:3049 \
+//          -e VUS=100 -e DURATION=2m tests/k6/track.js
+
+import http from 'k6/http';
+import { check } from 'k6';
+import encoding from 'k6/encoding';
+
+const BASE       = __ENV.BASE       ?? 'http://localhost:3049';
+const WRITE_KEY  = __ENV.WRITE_KEY  ?? 'cdp_dev_writekey_1234567890';
+const VUS        = parseInt(__ENV.VUS      ?? '50', 10);
+const DURATION   = __ENV.DURATION   ?? '1m';
+
+// Segment-compatible auth: Basic base64(writeKey + ":")
+const AUTH = 'Basic ' + encoding.b64encode(`${WRITE_KEY}:`);
+
+export const options = {
+  scenarios: {
+    constant_load: {
+      executor: 'constant-vus',
+      vus: VUS,
+      duration: DURATION,
+    },
+  },
+  thresholds: {
+    http_req_failed:   ['rate<0.01'],            // < 1% errors
+    http_req_duration: ['p(95)<300', 'p(99)<800'],
+    checks:            ['rate>0.99'],
+  },
+};
+
+export default function () {
+  const now = new Date().toISOString();
+  const messageId = `k6_${__VU}_${__ITER}_${Date.now()}`;
+
+  const payload = JSON.stringify({
+    type: 'track',
+    messageId,
+    anonymousId: `anon_${__VU}`,
+    userId: `user_${__VU}@example.com`,
+    event: 'k6 Test Event',
+    properties: {
+      testProp: 'load test',
+      vu: __VU,
+      iter: __ITER,
+      price: 42.5,
+    },
+    timestamp: now,
+    sentAt: now,
+    context: {
+      library_name: 'k6',
+      library_version: '0.1.0',
+      ip: '127.0.0.1',
+      userAgent: 'k6/loadtest',
+      locale: 'en-US',
+      page: {
+        path: '/',
+        host: 'example.com',
+        title: 'Example page',
+        url: 'https://example.com/',
+      },
+    },
+  });
+
+  const res = http.post(`${BASE}/v1/track`, payload, {
+    headers: {
+      'Content-Type': 'application/json',
+      Authorization: AUTH,
+    },
+  });
+
+  check(res, {
+    'status 200':    (r) => r.status === 200,
+    'body ok':       (r) => r.json('ok') === true,
+    'fast (<500ms)': (r) => r.timings.duration < 500,
+  });
+}