pkg/csslib: use pkg/test and allow latest version of logging pkg

test/nested_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 nested_test;
 
-import 'package:unittest/unittest.dart';
+import 'package:test/test.dart';
+
 import 'testing.dart';
 
 compileAndValidate(String input, String generated) {
   var errors = [];
   var stylesheet = compileCss(input, errors: errors, opts: simpleOptions);
   expect(stylesheet != null, true);
   expect(errors.isEmpty, true, reason: errors.toString());
   expect(prettyPrint(stylesheet), generated);
 }
 
@@ skipping 388 matching lines @@
 
 void complexThis() {
   var errors = [];
 
   final input1 = r'''
 .light {
   .leftCol {
     .textLink {
       color: fooL1;
       &:hover { color: barL1;}
-    } 
+    }
     .picLink {
       background-image: url(/fooL1.jpg);
       &:hover { background-image: url(/barL1.jpg);}
     }
     .textWithIconLink {
       color: fooL2;
       background-image: url(/fooL2.jpg);
       &:hover { color: barL2; background-image: url(/barL2.jpg);}
     }
-  }   
+  }
 }''';
 
   final generated1 = r'''.light {
 }
 .light .leftCol .textLink {
   color: fooL1;
 }
 .light .leftCol .textLink:hover {
   color: barL1;
 }
@@ skipping 12 matching lines @@
   background-image: url("/barL2.jpg");
 }''';
 
   compileAndValidate(input1, generated1);
 
   final input2 = r'''
 .textLink {
   .light .leftCol & {
     color: fooL1;
     &:hover { color: barL1; }
-  }      
+  }
   .light .rightCol & {
     color: fooL3;
     &:hover { color: barL3; }
-  } 
+  }
 }''';
 
   final generated2 = r'''
 .textLink {
 }
 .light .leftCol .textLink {
   color: fooL1;
 }
 .light .leftCol .textLink:hover {
   color: barL1;
@@ skipping 155 matching lines @@
 main() {
   test('Selector and Nested Variations', selectorVariations);
   test('Simple nesting', simpleNest);
   test('Complex nesting', complexNest);
   test('@media nesting', mediaNesting);
   test('Simple &', simpleThis);
   test("Variations &", variationsThis);
   test('Complex &', complexThis);
   test('& with + selector', thisCombinator);
 }