Unable to fetch "Test Execution" and "Test Details" fields of test case from jira apis.

[Vinuth]

I am using the below JQL query to fetch all the testcases of  a project in jira. But it isn't giving me the data present in "Test Execution" and "Test Details" fields. 

How to get those two missing details?

query = {
    'jql': f' project ={projectKey}  AND issuetype = "Test"'
}

testcases = self.jira.jql(query['jql'],limit=9000)