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-rw-r--r--tests/k6/data.js67
1 files changed, 67 insertions, 0 deletions
diff --git a/tests/k6/data.js b/tests/k6/data.js
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+import http from "k6/http";
+import { log, check, group, sleep } from "k6";
+import { Rate } from "k6/metrics";
+
+// A custom metric to track failure rates
+var failureRate = new Rate("check_failure_rate");
+
+// Options
+export let options = {
+ stages: [
+ // Linearly ramp up from 1 to 20 VUs during first 30s
+ { target: 20, duration: "30s" },
+ // Hold at 50 VUs for the next 1 minute
+ { target: 20, duration: "1m" },
+ // Linearly ramp down from 50 to 0 VUs over the last 10 seconds
+ { target: 0, duration: "10s" }
+ ],
+ thresholds: {
+ // We want the 95th percentile of all HTTP request durations to be less than 500ms
+ "http_req_duration": ["p(95)<500"],
+ // Requests with the fast tag should finish even faster
+ "http_req_duration{fast:yes}": ["p(99)<250"],
+ // Thresholds based on the custom metric we defined and use to track application failures
+ "check_failure_rate": [
+ // Global failure rate should be less than 1%
+ "rate<0.01",
+ // Abort the test early if it climbs over 5%
+ { threshold: "rate<=0.05", abortOnFail: true },
+ ],
+ },
+};
+
+function rnd(min, max) {
+ min = Math.ceil(min);
+ max = Math.floor(max);
+ return Math.floor(Math.random() * (max - min)) + min; //The maximum is exclusive and the minimum is inclusive
+}
+
+// Main function
+export default function () {
+ // Control what the data request asks for
+ let charts = [ "example.random" ]
+ let chartmin = 0;
+ let chartmax = charts.length - 1;
+ let aftermin = 60;
+ let aftermax = 3600;
+ let beforemin = 3503600;
+ let beforemax = 3590000;
+ let pointsmin = 300;
+ let pointsmax = 3600;
+
+ group("Requests", function () {
+ // Execute multiple requests in parallel like a browser, to fetch data for the charts. The one taking the longes is the data request.
+ let resps = http.batch([
+ ["GET", "http://localhost:19999/api/v1/info", { tags: { fast: "yes" } }],
+ ["GET", "http://localhost:19999/api/v1/charts", { tags: { fast: "yes" } }],
+ ["GET", "http://localhost:19999/api/v1/data?chart="+charts[rnd(chartmin,chartmax)]+"&before=-"+rnd(beforemin,beforemax)+"&after=-"+rnd(aftermin,aftermax)+"&points="+rnd(pointsmin,pointsmax)+"&format=json&group=average&gtime=0&options=ms%7Cflip%7Cjsonwrap%7Cnonzero&_="+rnd(1,1000000000000), { }],
+ ["GET", "http://localhost:19999/api/v1/alarms", { tags: { fast: "yes" } }]
+ ]);
+ // Combine check() call with failure tracking
+ failureRate.add(!check(resps, {
+ "status is 200": (r) => r[0].status === 200 && r[1].status === 200
+ }));
+ });
+
+ sleep(Math.random() * 2 + 1); // Random sleep between 1s and 3s
+}