Add patch operation for update node leaves

Issue-ID: CPS-1602
Change-Id: Ie67e6cb6810cd6ea05f3a11f7b195f0f23d39138
Signed-off-by: halil.cakal <halil.cakal@est.tech>

2 files changed, 29 insertions, 1 deletions

diff --git a/csit/data/testTreePatchExample.json b/csit/data/testTreePatchExample.json
new file mode 100644
index 000000000..31210b628
--- /dev/null
+++ b/csit/data/testTreePatchExample.json
@@ -0,0 +1,11 @@
+{
+  "name": "Right",
+  "nest": {
+    "name": "Bigger",
+    "birds": [
+      "Eagle",
+      "Falcon",
+      "Pigeon"
+    ]
+  }
+}
\ No newline at end of file
diff --git a/csit/tests/cps-data/cps-data.robot b/csit/tests/cps-data/cps-data.robot
index 096bd07b7..ce2033c11 100644
--- a/csit/tests/cps-data/cps-data.robot
+++ b/csit/tests/cps-data/cps-data.robot
@@ -1,7 +1,7 @@
 # ============LICENSE_START=======================================================
 # Copyright (c) 2021 Pantheon.tech.
 # Modifications Copyright (C) 2022 Bell Canada.
-# Modifications Copyright (C) 2022 Nordix Foundation.
+# Modifications Copyright (C) 2022-2023 Nordix Foundation.
 # ================================================================================
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -42,6 +42,23 @@ Create Data Node
     ${response}=        POST On Session     CPS_URL   ${uri}   headers=${headers}   data=${jsonData}
     Should Be Equal As Strings              ${response.status_code}   201
 
+Patch Data Node
+    ${uri}=             Set Variable        ${basePath}/v1/dataspaces/${dataspaceName}/anchors/${anchorName}/nodes
+    ${params}=          Create Dictionary   xpath=/test-tree/branch[@name='Right']
+    ${headers}          Create Dictionary   Content-Type=application/json   Authorization=${auth}
+    ${jsonData}=        Get Binary File     ${DATADIR}${/}testTreePatchExample.json
+    ${response}=        PATCH On Session    CPS_URL   ${uri}  params=${params}   headers=${headers}   data=${jsonData}
+    Should Be Equal As Strings              ${response.status_code}   200
+
+Get Updated Data Node by XPath
+    ${uri}=             Set Variable        ${basePath}/v1/dataspaces/${dataspaceName}/anchors/${anchorName}/node
+    ${params}=          Create Dictionary   xpath=/test-tree/branch[@name='Right']/nest
+    ${headers}=         Create Dictionary   Authorization=${auth}
+    ${response}=        Get On Session      CPS_URL   ${uri}   params=${params}   headers=${headers}   expected_status=200
+    ${responseJson}=    Set Variable        ${response.json()['tree:nest']}
+    Should Be Equal As Strings              ${responseJson['name']}   Bigger
+    Should Be Equal As Strings              ${responseJson['birds']}   ['Falcon', 'Eagle', 'Pigeon']
+
 Get Data Node by XPath
     ${uri}=             Set Variable        ${basePath}/v1/dataspaces/${dataspaceName}/anchors/${anchorName}/node
     ${params}=          Create Dictionary   xpath=/test-tree/branch[@name='LEFT/left']/nest