1 files changed, 51 insertions, 0 deletions
diff --git a/k6-tests/ncmp/3-passthrough-read.js b/k6-tests/ncmp/3-passthrough-read.js
new file mode 100644
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+++ b/k6-tests/ncmp/3-passthrough-read.js
@@ -0,0 +1,51 @@
+/*
+ *  ============LICENSE_START=======================================================
+ *  Copyright (C) 2024 Nordix Foundation
+ *  ================================================================================
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  SPDX-License-Identifier: Apache-2.0
+ *  ============LICENSE_END=========================================================
+ */
+
+import http from 'k6/http';
+import { check } from 'k6';
+import { Trend } from "k6/metrics";
+import { NCMP_BASE_URL, getRandomCmHandleId } from './utils.js'
+
+let ncmpOverheadTrend = new Trend("ncmp_overhead");
+
+export const options = {
+  vus: 12,
+  duration: '30s',
+  thresholds: {
+    http_req_failed: ['rate == 0'],
+    ncmp_overhead: ['avg <= 40'],
+  },
+};
+
+// The function that defines VU logic.
+export default function() {
+    const cmHandleId = getRandomCmHandleId();
+    const datastoreName = 'ncmp-datastore%3Apassthrough-operational';
+    const url = `${NCMP_BASE_URL}/ncmp/v1/ch/${cmHandleId}/data/ds/${datastoreName}?resourceIdentifier=x&include-descendants=true`
+    const response = http.get(url);
+    check(response, {
+        'status equals 200': (r) => r.status === 200,
+    });
+
+    // Calculate overhead assuming DMI data delay is 2500ms.
+    const dmiDelay = 2500; // This should be same as value DATA_FOR_CM_HANDLE_DELAY_MS in docker-compose.yml
+    const overhead = response.timings.duration - dmiDelay;
+    ncmpOverheadTrend.add(overhead);
+}