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diff --git a/test/mjsunit/mirror-error.js b/test/mjsunit/mirror-error.js
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+++ b/test/mjsunit/mirror-error.js
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+// Copyright 2008 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --expose-debug-as debug
+// Test the mirror object for regular error objects
+
+function MirrorRefCache(json_refs) {
+  var tmp = eval('(' + json_refs + ')');
+  this.refs_ = [];
+  for (var i = 0; i < tmp.length; i++) {
+    this.refs_[tmp[i].handle] = tmp[i];
+  }
+}
+
+MirrorRefCache.prototype.lookup = function(handle) {
+  return this.refs_[handle];
+}
+
+function testErrorMirror(e) {
+  // Create mirror and JSON representation.
+  var mirror = debug.MakeMirror(e);
+  var serializer = debug.MakeMirrorSerializer();
+  var json = JSON.stringify(serializer.serializeValue(mirror));
+  var refs = new MirrorRefCache(
+      JSON.stringify(serializer.serializeReferencedObjects()));
+
+  // Check the mirror hierachy.
+  assertTrue(mirror instanceof debug.Mirror);
+  assertTrue(mirror instanceof debug.ValueMirror);
+  assertTrue(mirror instanceof debug.ObjectMirror);
+  assertTrue(mirror instanceof debug.ErrorMirror);
+
+  // Check the mirror properties.
+  assertTrue(mirror.isError());
+  assertEquals('error', mirror.type());
+  assertFalse(mirror.isPrimitive());
+  assertEquals(mirror.message(), e.message, 'source');
+
+  // Parse JSON representation and check.
+  var fromJSON = eval('(' + json + ')');
+  assertEquals('error', fromJSON.type);
+  assertEquals('Error', fromJSON.className);
+  if (e.message) {
+    var found_message = false;
+    for (var i in fromJSON.properties) {
+      var p = fromJSON.properties[i];
+      print(p.name);
+      if (p.name == 'message') {
+        assertEquals(e.message, refs.lookup(p.ref).value);
+        found_message = true;
+      }
+    }
+    assertTrue(found_message, 'Property message not found');
+  }
+  
+  // Check the formatted text (regress 1231579).
+  assertEquals(fromJSON.text, e.toString(), 'toString');
+}
+
+
+// Test Date values.
+testErrorMirror(new Error());
+testErrorMirror(new Error('This does not work'));
+testErrorMirror(new Error(123+456));
+testErrorMirror(new EvalError('EvalError'));
+testErrorMirror(new RangeError('RangeError'));
+testErrorMirror(new ReferenceError('ReferenceError'));
+testErrorMirror(new SyntaxError('SyntaxError'));
+testErrorMirror(new TypeError('TypeError'));
+testErrorMirror(new URIError('URIError'));