Add expectAsyncX and expectAsyncUntilX methods, and deprecate the old methods.

test/runner/pause_after_load_test.dart

 // Copyright (c) 2015, 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.
 
 @TestOn("vm")
 
 import 'dart:async';
 import 'dart:io';
 
 import 'package:scheduled_test/descriptor.dart' as d;
@@ skipping 31 matching lines @@
     test.stdout.expect(consumeThrough("loaded test 1!"));
     test.stdout.expect(consumeThrough(inOrder([
       startsWith("Observatory URL: "),
       "The test runner is paused. Open the dev console in Dartium or the "
           "Observatory and set breakpoints.",
       "Once you're finished, return to this terminal and press Enter."
     ])));
 
     schedule(() async {
       var nextLineFired = false;
-      test.stdout.next().then(expectAsync((line) {
+      test.stdout.next().then(expectAsync1((line) {
         expect(line, contains("+0: test1.dart: success"));
         nextLineFired = true;
       }));
 
       // Wait a little bit to be sure that the tests don't start running without
       // our input.
       await new Future.delayed(new Duration(seconds: 2));
       expect(nextLineFired, isFalse);
     });
 
     test.writeLine('');
 
     test.stdout.expect(consumeThrough("loaded test 2!"));
     test.stdout.expect(consumeThrough(inOrder([
       startsWith("Observatory URL: "),
       "The test runner is paused. Open the dev console in Dartium or the "
           "Observatory and set breakpoints.",
       "Once you're finished, return to this terminal and press Enter."
     ])));
 
     schedule(() async {
       var nextLineFired = false;
-      test.stdout.next().then(expectAsync((line) {
+      test.stdout.next().then(expectAsync1((line) {
         expect(line, contains("+1: test2.dart: success"));
         nextLineFired = true;
       }));
 
       // Wait a little bit to be sure that the tests don't start running without
       // our input.
       await new Future.delayed(new Duration(seconds: 2));
       expect(nextLineFired, isFalse);
     });
 
@@ skipping 19 matching lines @@
     test.stdout.expect(consumeThrough("loaded test!"));
     test.stdout.expect(consumeThrough(inOrder([
       startsWith("Observatory URL: "),
       "The test runner is paused. Open the dev console in Dartium or the "
           "Observatory and set breakpoints.",
       "Once you're finished, return to this terminal and press Enter."
     ])));
 
     schedule(() async {
       var nextLineFired = false;
-      test.stdout.next().then(expectAsync((line) {
+      test.stdout.next().then(expectAsync1((line) {
         expect(line, contains("+0: [Dartium] success"));
         nextLineFired = true;
       }));
 
       // Wait a little bit to be sure that the tests don't start running without
       // our input.
       await new Future.delayed(new Duration(seconds: 2));
       expect(nextLineFired, isFalse);
     });
 
     test.writeLine('');
 
     test.stdout.expect(consumeThrough("loaded test!"));
     test.stdout.expect(consumeThrough(inOrder([
       "The test runner is paused. Open the dev console in Chrome and set "
           "breakpoints. Once you're finished,",
       "return to this terminal and press Enter."
     ])));
 
     schedule(() async {
       var nextLineFired = false;
-      test.stdout.next().then(expectAsync((line) {
+      test.stdout.next().then(expectAsync1((line) {
         expect(line, contains("+1: [Chrome] success"));
         nextLineFired = true;
       }));
 
       // Wait a little bit to be sure that the tests don't start running without
       // our input.
       await new Future.delayed(new Duration(seconds: 2));
       expect(nextLineFired, isFalse);
     });
 
@@ skipping 38 matching lines @@
     test.stdout.expect(consumeThrough("loaded test!"));
     test.stdout.expect(consumeThrough(inOrder([
       startsWith("Observatory URL: "),
       "The test runner is paused. Open the dev console in Dartium or the "
           "Observatory and set breakpoints.",
       "Once you're finished, return to this terminal and press Enter."
     ])));
 
     schedule(() async {
       var nextLineFired = false;
-      test.stdout.next().then(expectAsync((line) {
+      test.stdout.next().then(expectAsync1((line) {
         expect(line, contains("+0: [Dartium] success"));
         nextLineFired = true;
       }));
 
       // Wait a little bit to be sure that the tests don't start running without
       // our input.
       await new Future.delayed(new Duration(seconds: 2));
       expect(nextLineFired, isFalse);
     });
 
@@ skipping 52 matching lines @@
     test.stdout.expect(consumeThrough("loaded test 1!"));
     test.stdout.expect(consumeThrough(inOrder([
       startsWith("Observatory URL: "),
       "The test runner is paused. Open the dev console in Dartium or the "
           "Observatory and set breakpoints.",
       "Once you're finished, return to this terminal and press Enter."
     ])));
 
     schedule(() async {
       var nextLineFired = false;
-      test.stdout.next().then(expectAsync((line) {
+      test.stdout.next().then(expectAsync1((line) {
         expect(line, contains("+0: success"));
         nextLineFired = true;
       }));
 
       // Wait a little bit to be sure that the tests don't start running without
       // our input.
       await new Future.delayed(new Duration(seconds: 2));
       expect(nextLineFired, isFalse);
     });
 
@@ skipping 21 matching lines @@
     test.stdout.expect(consumeThrough("loaded test 1!"));
     test.stdout.expect(consumeThrough(inOrder([
       startsWith("Observatory URL: "),
       "The test runner is paused. Open the dev console in Dartium or the "
           "Observatory and set breakpoints.",
       "Once you're finished, return to this terminal and press Enter."
     ])));
 
     schedule(() async {
       var nextLineFired = false;
-      test.stdout.next().then(expectAsync((line) {
+      test.stdout.next().then(expectAsync1((line) {
         expect(line, contains("+0: success"));
         nextLineFired = true;
       }));
 
       // Wait a little bit to be sure that the tests don't start running without
       // our input.
       await new Future.delayed(new Duration(seconds: 2));
       expect(nextLineFired, isFalse);
     });
 
     test.writeLine('');
     test.stdout.expect(consumeThrough(contains("+1: All tests passed!")));
     test.shouldExit(0);
   }, tags: 'dartium');
 }