Rewrite SdkExtUriResolver into reflective.

pkg/analyzer/test/source/sdk_ext_test.dart

Index: pkg/analyzer/test/source/sdk_ext_test.dart
diff --git a/pkg/analyzer/test/source/sdk_ext_test.dart b/pkg/analyzer/test/source/sdk_ext_test.dart
index dbb742575ecbebb87d0e87d5cee425efbc75b2f5..e46ed7d00e53399493db630584157e274aa0f94b 100644
--- a/pkg/analyzer/test/source/sdk_ext_test.dart
+++ b/pkg/analyzer/test/source/sdk_ext_test.dart
@@ -8,79 +8,77 @@ import 'package:analyzer/file_system/memory_file_system.dart';
 import 'package:analyzer/source/sdk_ext.dart';
 import 'package:unittest/unittest.dart';
 
+import '../reflective_tests.dart';
 import '../utils.dart';
 
 main() {
   initializeTestEnvironment();
-  group('SdkExtUriResolverTest', () {
-    setUp(() {
-      buildResourceProvider();
-    });
-    tearDown(() {
-      clearResourceProvider();
-    });
-    test('test_NullPackageMap', () {
-      var resolver = new SdkExtUriResolver(null);
-      expect(resolver.length, equals(0));
-    });
-    test('test_NoSdkExtPackageMap', () {
-      var resolver = new SdkExtUriResolver({
-        'fox': [resourceProvider.getResource('/empty')]
-      });
-      expect(resolver.length, equals(0));
-    });
-    test('test_SdkExtPackageMap', () {
-      var resolver = new SdkExtUriResolver({
-        'fox': [resourceProvider.getResource('/tmp')]
-      });
-      // We have four mappings.
-      expect(resolver.length, equals(4));
-      // Check that they map to the correct paths.
-      expect(resolver['dart:fox'], equals("/tmp/slippy.dart"));
-      expect(resolver['dart:bear'], equals("/tmp/grizzly.dart"));
-      expect(resolver['dart:relative'], equals("/relative.dart"));
-      expect(resolver['dart:deep'], equals("/tmp/deep/directory/file.dart"));
-    });
-    test('test_BadJSON', () {
-      var resolver = new SdkExtUriResolver(null);
-      resolver.addSdkExt(r'''{{{,{{}}},}}''', null);
-      expect(resolver.length, equals(0));
-    });
-    test('test_restoreAbsolute', () {
-      var resolver = new SdkExtUriResolver({
-        'fox': [resourceProvider.getResource('/tmp')]
-      });
-      var source = resolver.resolveAbsolute(Uri.parse('dart:fox'));
-      expect(source, isNotNull);
-      // Restore source's uri.
-      var restoreUri = resolver.restoreAbsolute(source);
-      expect(restoreUri, isNotNull);
-      // Verify that it is 'dart:fox'.
-      expect(restoreUri.toString(), equals('dart:fox'));
-      expect(restoreUri.scheme, equals('dart'));
-      expect(restoreUri.path, equals('fox'));
-    });
-  });
+  runReflectiveTests(SdkExtUriResolverTest);
 }
 
-MemoryResourceProvider resourceProvider;
+@reflectiveTest
+class SdkExtUriResolverTest {
+  MemoryResourceProvider resourceProvider;
 
-buildResourceProvider() {
-  resourceProvider = new MemoryResourceProvider();
-  resourceProvider.newFolder('/empty');
-  resourceProvider.newFolder('/tmp');
-  resourceProvider.newFile(
-      '/tmp/_sdkext',
-      r'''
-  {
-    "dart:fox": "slippy.dart",
-    "dart:bear": "grizzly.dart",
-    "dart:relative": "../relative.dart",
-    "dart:deep": "deep/directory/file.dart",
-    "fart:loudly": "nomatter.dart"
-  }''');
-}
+  void setUp() {
+    resourceProvider = new MemoryResourceProvider();
+    resourceProvider.newFolder('/empty');
+    resourceProvider.newFolder('/tmp');
+    resourceProvider.newFile(
+        '/tmp/_sdkext',
+        r'''
+{
+  "dart:fox": "slippy.dart",
+  "dart:bear": "grizzly.dart",
+  "dart:relative": "../relative.dart",
+  "dart:deep": "deep/directory/file.dart",
+  "fart:loudly": "nomatter.dart"
+}''');
+  }
 
-clearResourceProvider() {
-  resourceProvider = null;
+  test_create_badJSON() {
+    var resolver = new SdkExtUriResolver(null);
+    resolver.addSdkExt(r'''{{{,{{}}},}}''', null);
+    expect(resolver.length, equals(0));
+  }
+
+  test_create_noSdkExtPackageMap() {
+    var resolver = new SdkExtUriResolver({
+      'fox': [resourceProvider.getResource('/empty')]
+    });
+    expect(resolver.length, equals(0));
+  }
+
+  test_create_nullPackageMap() {
+    var resolver = new SdkExtUriResolver(null);
+    expect(resolver.length, equals(0));
+  }
+
+  test_create_sdkExtPackageMap() {
+    var resolver = new SdkExtUriResolver({
+      'fox': [resourceProvider.getResource('/tmp')]
+    });
+    // We have four mappings.
+    expect(resolver.length, equals(4));
+    // Check that they map to the correct paths.
+    expect(resolver['dart:fox'], equals("/tmp/slippy.dart"));
+    expect(resolver['dart:bear'], equals("/tmp/grizzly.dart"));
+    expect(resolver['dart:relative'], equals("/relative.dart"));
+    expect(resolver['dart:deep'], equals("/tmp/deep/directory/file.dart"));
+  }
+
+  test_restoreAbsolute() {
+    var resolver = new SdkExtUriResolver({
+      'fox': [resourceProvider.getResource('/tmp')]
+    });
+    var source = resolver.resolveAbsolute(Uri.parse('dart:fox'));
+    expect(source, isNotNull);
+    // Restore source's uri.
+    var restoreUri = resolver.restoreAbsolute(source);
+    expect(restoreUri, isNotNull);
+    // Verify that it is 'dart:fox'.
+    expect(restoreUri.toString(), equals('dart:fox'));
+    expect(restoreUri.scheme, equals('dart'));
+    expect(restoreUri.path, equals('fox'));
+  }
 }