Use .log(console.log) to see the exact error message.
EX :
nock('https://test.org/sample')
.persist()
.log(console.log)
.get('/test')
.query({})
.reply(200, response);
When you use this and run the test, you will see something like this in the console
matching https://test.org/sample/test to GET https://test.org/sample/test with query({}): **true/false**.
If it says true, your request should be good. But if it says false, check both the requests and make sure they match.