[k6] Refactoring k6 tests (#1)

This commit moves all common request logic into a common folder.
It is needed to avoid duplication before adding JVM warmup phase.

- move registration-related code into common folder
- move passthrough operations into common folder

Issue-ID: CPS-2208
Signed-off-by: danielhanrahan <daniel.hanrahan@est.tech>
Change-Id: Ia9ebf61d21044b43063bde153f9c526e67d607c8
diff --git a/k6-tests/ncmp/common/search-base.js b/k6-tests/ncmp/common/search-base.js
new file mode 100644
index 0000000..f833a53
--- /dev/null
+++ b/k6-tests/ncmp/common/search-base.js
@@ -0,0 +1,68 @@
+/*
+ *  ============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 { NCMP_BASE_URL, TOTAL_CM_HANDLES } from './utils.js';
+
+const SEARCH_PARAMETERS_PER_SCENARIO = {
+    'no-filter': {},
+    'module': {
+        'cmHandleQueryParameters': [
+            {
+                'conditionName': 'hasAllModules',
+                'conditionParameters': [{'moduleName': 'ietf-yang-types-1'}]
+            }
+        ]
+    },
+    'property': {
+        'cmHandleQueryParameters': [
+            {
+                'conditionName': 'hasAllProperties',
+                'conditionParameters': [{'Color': 'yellow'}]
+            }
+        ]
+    }
+};
+
+export function executeCmHandleSearch(scenario) {
+    executeSearchRequest('searches', scenario);
+}
+
+export function executeCmHandleIdSearch(scenario) {
+    executeSearchRequest('id-searches', scenario);
+}
+
+function executeSearchRequest(searchType, scenario) {
+    const searchParameters = SEARCH_PARAMETERS_PER_SCENARIO[scenario];
+    const payload = JSON.stringify(searchParameters);
+    const url = `${NCMP_BASE_URL}/ncmp/v1/ch/${searchType}`;
+    const params = {
+        headers: {'Content-Type': 'application/json'}
+    };
+    const response = http.post(url, payload, params);
+    check(response, {
+        'status equals 200': (r) => r.status === 200,
+    });
+    const responseData = JSON.parse(response.body);
+    check(responseData, {
+        'returned list has expected CM-handles': (arr) => arr.length === TOTAL_CM_HANDLES,
+    });
+}