[tests] Add API test suite

tests-api/mocks/utils.py

@@ -0,0 +1,20 @@
+"""
+Mock utils module for testing purposes
+"""
+
+def merge_json_recursive(a, b):
+    """
+    Mock implementation of merge_json_recursive
+    """
+    if isinstance(a, dict) and isinstance(b, dict):
+        result = a.copy()
+        for key, value in b.items():
+            if key in result and isinstance(result[key], (dict, list)) and isinstance(value, (dict, list)):
+                result[key] = merge_json_recursive(result[key], value)
+            else:
+                result[key] = value
+        return result
+    elif isinstance(a, list) and isinstance(b, list):
+        return a + b
+    else:
+        return b