pkg/matcher: test cleanup

pkg/matcher/test/pretty_print_minified_test.dart

 // Copyright (c) 2012, 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.
 
 // This file is for pretty-print tests that rely on the names of various Dart
 // types. These tests normally fail when run in minified dart2js, since the
 // names will be mangled. This version of the file is modified to expect
 // minified names.
 
+library matcher.print_minified_test;
+
 import 'dart:collection';
 
-import 'package:unittest/unittest.dart' as ut;
-
 import 'package:matcher/matcher.dart';
 import 'package:matcher/src/pretty_print.dart';
+import 'package:unittest/unittest.dart' show test, group;
 
 class DefaultToString {}
 
 class CustomToString {
   String toString() => "string representation";
 }
 
 class _PrivateName {
   String toString() => "string representation";
 }
 
 class _PrivateNameIterable extends IterableMixin {
   Iterator get iterator => [1, 2, 3].iterator;
 }
 
 // A regexp fragment matching a minified name.
 final _minifiedName = r"[A-Za-z0-9]{1,3}";
 
 void main() {
-  ut.group('with an object', () {
-    ut.test('with a default [toString]', () {
+  group('with an object', () {
+    test('with a default [toString]', () {
       expect(prettyPrint(new DefaultToString()),
           matches(r"<Instance of '" + _minifiedName + r"'>"));
     });
 
-    ut.test('with a custom [toString]', () {
+    test('with a custom [toString]', () {
       expect(prettyPrint(new CustomToString()),
           matches(_minifiedName + r':<string representation>'));
     });
 
-    ut.test('with a custom [toString] and a private name', () {
+    test('with a custom [toString] and a private name', () {
       expect(prettyPrint(new _PrivateName()),
           matches(_minifiedName + r':<string representation>'));
     });
   });
 
-  ut.group('with an iterable', () {
-    ut.test("that's not a list", () {
+  group('with an iterable', () {
+    test("that's not a list", () {
       expect(prettyPrint([1, 2, 3, 4].map((n) => n * 2)),
           matches(_minifiedName + r":\[2, 4, 6, 8\]"));
     });
 
-    ut.test("that's not a list and has a private name", () {
+    test("that's not a list and has a private name", () {
       expect(prettyPrint(new _PrivateNameIterable()),
           matches(_minifiedName + r":\[1, 2, 3\]"));
     });
   });
 }