Fix links of VirtualDirectory.

pkg/http_server/test/virtual_directory_test.dart

Index: pkg/http_server/test/virtual_directory_test.dart
diff --git a/pkg/http_server/test/virtual_directory_test.dart b/pkg/http_server/test/virtual_directory_test.dart
index 81e0071894b3b10f202c52460a2d5c88e79b9e09..b95abdc2878ab694e8cd29640a51d6b19c790a0f 100644
--- a/pkg/http_server/test/virtual_directory_test.dart
+++ b/pkg/http_server/test/virtual_directory_test.dart
@@ -116,6 +116,17 @@ void main() {
           });
       });
 
+      testVirtualDir('dir-href', (dir) {
+        var virDir = new VirtualDirectory(dir.path);
+        new Directory('${dir.path}/dir').createSync();
+        virDir.allowDirectoryListing = true;
+
+        return getAsString(virDir, '/')
+          .then((result) {
+            expect(result, contains('<a href="dir/">'));
+          });
+      });
+
       testVirtualDir('dirs', (dir) {
         var virDir = new VirtualDirectory(dir.path);
         for (int i = 0; i < 10; i++) {
@@ -194,7 +205,7 @@ void main() {
 
           return getAsString(virDir, '/')
             .then((result) {
-              expect(result, contains('%2Fjavascript%3Aalert(document)%3B%22'));
+              expect(result, contains('javascript%3Aalert(document)%3B%22/'));
             });
         });
 
@@ -206,7 +217,7 @@ void main() {
           return getAsString(virDir, '/')
             .then((result) {
               expect(result, contains('&lt;&gt;&amp;&quot;&#x2F;'));
-              expect(result, contains('href="%2F%3C%3E%26%22"'));
+              expect(result, contains('href="%3C%3E%26%22/"'));
             });
         });
       }