diff --git a/test/mjsunit/mirror-script.js b/test/mjsunit/mirror-script.js
new file mode 100644
index 0000000..3208f16
--- /dev/null
+++ b/test/mjsunit/mirror-script.js
@@ -0,0 +1,100 @@
+// 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 --allow-natives-syntax
+// Test the mirror object for scripts.
+
+function testScriptMirror(f, file_name, file_lines, type, compilation_type,
+                          source, eval_from_line) {
+  // Create mirror and JSON representation.
+  var mirror = debug.MakeMirror(f).script();
+  var serializer = debug.MakeMirrorSerializer();
+  var json = JSON.stringify(serializer.serializeValue(mirror));
+
+  // Check the mirror hierachy.
+  assertTrue(mirror instanceof debug.Mirror);
+  assertFalse(mirror instanceof debug.ValueMirror);
+  assertTrue(mirror instanceof debug.ScriptMirror);
+
+  // Check the mirror properties.
+  assertTrue(mirror.isScript());
+  assertEquals('script', mirror.type());
+  var name = mirror.name();
+  if (name) {
+    assertEquals(file_name, name.substring(name.length - file_name.length));
+  } else {
+    assertTrue(file_name === null);
+  }
+  assertEquals(0, mirror.lineOffset());
+  assertEquals(0, mirror.columnOffset());
+  if (file_lines > 0) {
+    assertEquals(file_lines, mirror.lineCount());
+  }
+  assertEquals(type, mirror.scriptType());
+  assertEquals(compilation_type, mirror.compilationType(), "compilation type");
+  if (source) {
+    assertEquals(source, mirror.source());
+  }
+  if (eval_from_line) {
+    assertEquals(eval_from_line,  mirror.evalFromLocation().line);
+  }
+  
+  // Parse JSON representation and check.
+  var fromJSON = JSON.parse(json);
+  assertEquals('script', fromJSON.type);
+  name = fromJSON.name;
+  if (name) {
+    assertEquals(file_name, name.substring(name.length - file_name.length));
+  } else {
+    assertTrue(file_name === null);
+  }
+  assertEquals(0, fromJSON.lineOffset);
+  assertEquals(0, fromJSON.columnOffset);
+  if (file_lines > 0) {
+    assertEquals(file_lines, fromJSON.lineCount);
+  }
+  assertEquals(type, fromJSON.scriptType);
+  assertEquals(compilation_type, fromJSON.compilationType);
+}
+
+
+// Test the script mirror for different functions.
+testScriptMirror(function(){}, 'mirror-script.js', 100, 2, 0);
+testScriptMirror(Math.sin, 'native math.js', -1, 0, 0);
+testScriptMirror(eval('(function(){})'), null, 1, 2, 1, '(function(){})', 87);
+testScriptMirror(eval('(function(){\n  })'), null, 2, 2, 1, '(function(){\n  })', 88);
+testScriptMirror(%CompileString("({a:1,b:2})", true), null, 1, 2, 2, '({a:1,b:2})');
+testScriptMirror(%CompileString("({a:1,\n  b:2})", true), null, 2, 2, 2, '({a:1,\n  b:2})');
+
+// Test taking slices of source.
+var mirror = debug.MakeMirror(eval('(function(){\n  1;\n})')).script();
+assertEquals('(function(){\n', mirror.sourceSlice(0, 1).sourceText());
+assertEquals('  1;\n', mirror.sourceSlice(1, 2).sourceText());
+assertEquals('})', mirror.sourceSlice(2, 3).sourceText());
+assertEquals('(function(){\n  1;\n', mirror.sourceSlice(0, 2).sourceText());
+assertEquals('  1;\n})', mirror.sourceSlice(1, 3).sourceText());
+assertEquals('(function(){\n  1;\n})', mirror.sourceSlice(0, 3).sourceText());