Switch analysis_server to use 'package:test'.

pkg/analysis_server/test/services/completion/dart/uri_contributor_test.dart

 // Copyright (c) 2014, 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 test.services.completion.contributor.dart.importuri;
 
 import 'package:analysis_server/plugin/protocol/protocol.dart';
 import 'package:analysis_server/src/provisional/completion/dart/completion_dart.dart';
 import 'package:analysis_server/src/services/completion/dart/uri_contributor.dart';
 import 'package:analyzer/file_system/memory_file_system.dart';
 import 'package:path/path.dart';
+import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
-import 'package:unittest/unittest.dart';
 
 import '../../../utils.dart';
 import 'completion_contributor_util.dart';
 
 main() {
   initializeTestEnvironment();
-  defineReflectiveTests(UriContributorTest);
-  defineReflectiveTests(UriContributorWindowsTest);
+  defineReflectiveSuite(() {
+    defineReflectiveTests(UriContributorTest);
+    defineReflectiveTests(UriContributorWindowsTest);
+  });
 }
 
 @reflectiveTest
 class UriContributorTest extends DartCompletionContributorTest {
   @override
   DartCompletionContributor createContributor() {
     return new UriContributor();
   }
 
   test_after_import() async {
@@ skipping 228 matching lines @@
   test_import_package2() async {
     addPackageSource('foo', 'foo.dart', 'library foo;');
     addPackageSource('foo', 'baz/too.dart', 'library too;');
     addPackageSource('bar', 'bar.dart', 'library bar;');
     addTestSource('import "package:foo/baz/^" import');
     await computeSuggestions();
     assertSuggest('package:foo/baz/too.dart',
         csKind: CompletionSuggestionKind.IMPORT);
   }
 
+  test_import_package2_raw() async {
+    addPackageSource('foo', 'foo.dart', 'library foo;');
+    addPackageSource('foo', 'baz/too.dart', 'library too;');
+    addPackageSource('bar', 'bar.dart', 'library bar;');
+    addTestSource('import r"package:foo/baz/^" import');
+    await computeSuggestions();
+    assertSuggest('package:foo/baz/too.dart',
+        csKind: CompletionSuggestionKind.IMPORT);
+  }
+
   test_import_package2_with_trailing() async {
     addPackageSource('foo', 'foo.dart', 'library foo;');
     addPackageSource('foo', 'baz/too.dart', 'library too;');
     addPackageSource('bar', 'bar.dart', 'library bar;');
     addTestSource('import "package:foo/baz/^.dart" import');
     await computeSuggestions();
     assertSuggest('package:foo/baz/too.dart',
         csKind: CompletionSuggestionKind.IMPORT);
     expect(replacementOffset, completionOffset - 16);
     expect(replacementLength, 5 + 16);
   }
 
-  test_import_package2_raw() async {
-    addPackageSource('foo', 'foo.dart', 'library foo;');
-    addPackageSource('foo', 'baz/too.dart', 'library too;');
-    addPackageSource('bar', 'bar.dart', 'library bar;');
-    addTestSource('import r"package:foo/baz/^" import');
-    await computeSuggestions();
-    assertSuggest('package:foo/baz/too.dart',
-        csKind: CompletionSuggestionKind.IMPORT);
-  }
-
   test_import_package_missing_lib() async {
     var pkgSrc = addPackageSource('bar', 'bar.dart', 'library bar;');
     provider.deleteFolder(dirname(pkgSrc.fullName));
     addTestSource('import "p^" class');
     await computeSuggestions();
     expect(replacementOffset, completionOffset - 1);
     expect(replacementLength, 1);
     assertSuggest('package:', csKind: CompletionSuggestionKind.IMPORT);
     assertSuggest('package:bar/', csKind: CompletionSuggestionKind.IMPORT);
     assertNotSuggested('package:bar/bar.dart');
@@ skipping 323 matching lines @@
     assertNotSuggested('foo/');
     assertNotSuggested('foo/bar.dart');
     assertSuggest('../blat.dart', csKind: CompletionSuggestionKind.IMPORT);
   }
 }
 
 class _TestWinResourceProvider extends MemoryResourceProvider {
   @override
   Context get pathContext => windows;
 }