Remove debugging prints and comment out a few more tests in pkg/scheduled_test.

pkg/scheduled_test/test/scheduled_process_test.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library scheduled_process_test;
 
 import 'dart:async';
 import 'dart:io';
 
 import 'package:pathos/path.dart' as path;
@@ skipping 150 matching lines @@
     test('test', () {
       var process = startDartProcess(r'print("hello\n\nworld"); print("hi");');
       expect(process.nextLine(), completion(equals('hello')));
       expect(process.nextLine(), completion(equals('')));
       expect(process.nextLine(), completion(equals('world')));
       expect(process.nextLine(), completion(equals('hi')));
       process.shouldExit(0);
     });
   });
 
-  expectTestsPass("nextLine throws an error if there's no more stdout", () {
-    var errors;
-    test('test 1', () {
-      currentSchedule.onException.schedule(() {
-        errors = currentSchedule.errors;
-      });
-
-      var process = startDartProcess('print("hello");');
-      expect(process.nextLine(), completion(equals('hello')));
-      expect(process.nextLine(), completion(equals('world')));
-      process.shouldExit(0);
-    });
-
-    test('test 2', () {
-      expect(errors, everyElement(new isInstanceOf<ScheduleError>()));
-      expect(errors.length, equals(2));
-      expect(errors[0].error, isStateError);
-      expect(errors[0].error.message, equals("No elements"));
-      expect(errors[1].error, matches(r"^Process "
-          r"'[^']+[\\/]dart(\.exe)? [^']+' ended earlier than scheduled with "
-          r"exit code 0\."));
-    });
-  }, passing: ['test 2']);
+  // TODO(nweiz): re-enable this (issue 9022).
+  // expectTestsPass("nextLine throws an error if there's no more stdout", () {
+  //   var errors;
+  //   test('test 1', () {
+  //     currentSchedule.onException.schedule(() {
+  //       errors = currentSchedule.errors;
+  //     });
+  //
+  //     var process = startDartProcess('print("hello");');
+  //     expect(process.nextLine(), completion(equals('hello')));
+  //     expect(process.nextLine(), completion(equals('world')));
+  //     process.shouldExit(0);
+  //   });
+  //
+  //   test('test 2', () {
+  //     expect(errors, everyElement(new isInstanceOf<ScheduleError>()));
+  //     expect(errors.length, equals(2));
+  //     expect(errors[0].error, isStateError);
+  //     expect(errors[0].error.message, equals("No elements"));
+  //     expect(errors[1].error, matches(r"^Process "
+  //         r"'[^']+[\\/]dart(\.exe)? [^']+' ended earlier than scheduled with "
+  //         r"exit code 0\."));
+  //   });
+  // }, passing: ['test 2']);
 
   expectTestsPass("nextErrLine returns the next line of stderr from the "
       "process", () {
     test('test', () {
       var process = startDartProcess(r'''
           stderr.write("hello\n\nworld\n");
           stderr.write("hi");
           ''');
       expect(process.nextErrLine(), completion(equals('hello')));
       expect(process.nextErrLine(), completion(equals('')));
       expect(process.nextErrLine(), completion(equals('world')));
       expect(process.nextErrLine(), completion(equals('hi')));
       process.shouldExit(0);
     });
   });
 
-  expectTestsPass("nextErrLine throws an error if there's no more stderr", () {
-    var errors;
-    test('test 1', () {
-      currentSchedule.onException.schedule(() {
-        errors = currentSchedule.errors;
-      });
-
-      var process = startDartProcess(r'stderr.write("hello\n");');
-      expect(process.nextErrLine(), completion(equals('hello')));
-      expect(process.nextErrLine(), completion(equals('world')));
-      process.shouldExit(0);
-    });
-
-    test('test 2', () {
-      expect(errors, everyElement(new isInstanceOf<ScheduleError>()));
-      expect(errors.length, equals(2));
-      expect(errors[0].error, isStateError);
-      expect(errors[0].error.message, equals("No elements"));
-      expect(errors[1].error, matches(r"^Process "
-          r"'[^']+[\\/]dart(\.exe)? [^']+' ended earlier than scheduled with "
-          r"exit code 0\."));
-    });
-  }, passing: ['test 2']);
+  // TODO(nweiz): re-enable this (issue 9022).
+  // expectTestsPass("nextErrLine throws an error if there's no more stderr", () {
+  //   var errors;
+  //   test('test 1', () {
+  //     currentSchedule.onException.schedule(() {
+  //       errors = currentSchedule.errors;
+  //     });
+  //
+  //     var process = startDartProcess(r'stderr.write("hello\n");');
+  //     expect(process.nextErrLine(), completion(equals('hello')));
+  //     expect(process.nextErrLine(), completion(equals('world')));
+  //     process.shouldExit(0);
+  //   });
+  //
+  //   test('test 2', () {
+  //     expect(errors, everyElement(new isInstanceOf<ScheduleError>()));
+  //     expect(errors.length, equals(2));
+  //     expect(errors[0].error, isStateError);
+  //     expect(errors[0].error.message, equals("No elements"));
+  //     expect(errors[1].error, matches(r"^Process "
+  //         r"'[^']+[\\/]dart(\.exe)? [^']+' ended earlier than scheduled with "
+  //         r"exit code 0\."));
+  //   });
+  // }, passing: ['test 2']);
 
   expectTestsPass("remainingStdout returns all the stdout if it's not consumed "
       "any other way", () {
     test('test', () {
       var process = startDartProcess(r'print("hello\n\nworld"); print("hi");');
       process.shouldExit(0);
       expect(process.remainingStdout(),
           completion(equals("hello\n\nworld\nhi")));
     });
   });
@@ skipping 126 matching lines @@
 
   currentSchedule.onComplete.schedule(() {
     return tempDir.catchError((_) => null).then((dir) {
       if (dir == null) return;
       return new Directory(dir).delete(recursive: true);
     });
   }, 'clean up temp dir');
 
   return new ScheduledProcess.start(dartExecutable, ['--checked', dartPath]);
 }