Example output from Dart's coverage tool.

coverage.txt

Coverage target process (pid 6476) found listening on port 51189.
Debuggee isolate id 7114 created.
Debuggee isolate id 7114 shut down.
Sending kill signal to process 6476.
Connection closed by coverage target
Process 6476 terminated with exit code 0.
Coverage info collected from 42 breakpoints:
file:///c:/Work/dart/projects/test.dart
      |library mytest;
      |
      |main() {
    12|  for (var i = 0; i < 10; i++) {
    10|    foo();
      |  } 
      |}
      |
      |foo() {
    10|  print("foo");
      |}