Split apart several asynchronous tests to reduce timeouts.

pkg/scheduled_test/test/descriptor/nothing_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.
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:pathos/path.dart' as path;
+import 'package:scheduled_test/descriptor.dart' as d;
+import 'package:scheduled_test/scheduled_test.dart';
+
+import '../metatest.dart';
+import 'utils.dart';
+
+void main() {
+  metaSetUp(() {
+    // TODO(nweiz): We used to only increase the timeout to 10s for the Windows
+    // bots, but the Linux and Mac bots have started taking upwards of 5s when
+    // running pumpEventQueue, so we're increasing the timeout across the board
+    // (see issue 9248).
+    currentSchedule.timeout = new Duration(seconds: 10);
+  });
+
+  expectTestsPass("nothing().create() does nothing", () {
+    test('test', () {
+      scheduleSandbox();
+
+      d.nothing('foo').create();
+
+      schedule(() {
+        expect(new File(path.join(sandbox, 'foo')).exists(),
+            completion(isFalse));
+      });
+
+      schedule(() {
+        expect(new Directory(path.join(sandbox, 'foo')).exists(),
+            completion(isFalse));
+      });
+    });
+  });
+
+  expectTestsPass("nothing().validate() succeeds if nothing's there", () {
+    test('test', () {
+      scheduleSandbox();
+
+      d.nothing('foo').validate();
+    });
+  });
+
+  expectTestsPass("nothing().validate() fails if there's a file", () {
+    var errors;
+    test('test 1', () {
+      scheduleSandbox();
+
+      currentSchedule.onException.schedule(() {
+        errors = currentSchedule.errors;
+      });
+
+      d.file('name.txt', 'contents').create();
+      d.nothing('name.txt').validate();
+    });
+
+    test('test 2', () {
+      expect(errors, everyElement(new isInstanceOf<ScheduleError>()));
+      expect(errors.length, equals(1));
+      expect(errors.first.error,
+          matches(r"^Expected nothing to exist at '[^']+[\\/]name.txt', but "
+              r"found a file\.$"));
+    });
+  }, passing: ['test 2']);
+
+  expectTestsPass("nothing().validate() fails if there's a directory", () {
+    var errors;
+    test('test 1', () {
+      scheduleSandbox();
+
+      currentSchedule.onException.schedule(() {
+        errors = currentSchedule.errors;
+      });
+
+      d.dir('dir').create();
+      d.nothing('dir').validate();
+    });
+
+    test('test 2', () {
+      expect(errors, everyElement(new isInstanceOf<ScheduleError>()));
+      expect(errors.length, equals(1));
+      expect(errors.first.error,
+          matches(r"^Expected nothing to exist at '[^']+[\\/]dir', but found a "
+              r"directory\.$"));
+    });
+  }, passing: ['test 2']);
+
+  expectTestsPass("nothing().load() fails", () {
+    test('test', () {
+      scheduleSandbox();
+
+      expect(d.nothing('name.txt').load('path').toList(),
+          throwsA(equals("Nothing descriptors don't support load().")));
+    });
+  });
+
+  expectTestsPass("nothing().read() fails", () {
+    test('test', () {
+      scheduleSandbox();
+
+      expect(d.nothing('name.txt').read().toList(),
+          throwsA(equals("Nothing descriptors don't support read().")));
+    });
+  });
+}