Ensure proper prefix handling in JSONPath queries and add test case. (#161)

Co-authored-by: Grzegorz Krajniak <[email protected]>

Author: gkrajniak

projects/lib/utils/utils/resource-field-by-path.spec.ts

@@ -47,6 +47,17 @@ describe('getResourceValueByJsonPath', () => {
     expect(result).toBe('test-result');
   });
 
+  it('should query resource using jsonPathExpression', () => {
+    (jsonpath.query as jest.Mock).mockReturnValue(['test-result']);
+
+    const result = getResourceValueByJsonPath(mockResource, {
+      jsonPathExpression: '$.spec.value',
+    });
+
+    expect(jsonpath.query).toHaveBeenCalledWith(mockResource, '$.spec.value');
+    expect(result).toBe('test-result');
+  });
+
   it('should query resource using property', () => {
     (jsonpath.query as jest.Mock).mockReturnValue(['property-result']);
 

projects/lib/utils/utils/resource-field-by-path.ts

@@ -25,7 +25,8 @@ export const getResourceValueByJsonPath = (
     return undefined;
   }
 
-  const queryResult = jsonpath.query(resource, `$.${property}`);
+  const prefix = property.startsWith('$.') ? '' : '$.';
+  const queryResult = jsonpath.query(resource, `${prefix}${property}`);
   const value = queryResult.length ? queryResult[0] : undefined;
 
   if (value && field.propertyField) {