// complete once all of its subtests complete. In this example, all tests are
// run in parallel with each other, and only with each other, regardless of
// other top-level tests that may be defined:
//
//	func TestGroupedParallel(t *testing.T) {
//	    for _, tc := range tests {
//	        tc := tc // capture range variable
//	        t.Run(tc.Name, func(t *testing.T) {
//	            t.Parallel()
//	            ...
//	        })