1// Copyright 2008 the V8 project authors. All rights reserved.
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3// modification, are permitted provided that the following conditions are
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27
28// Flags: --expose-debug-as debug
29// Test the mirror object for null
30
31// Create mirror and JSON representation.
32var mirror = debug.MakeMirror(null);
33var serializer = debug.MakeMirrorSerializer();
34var json = JSON.stringify(serializer.serializeValue(mirror));
35
36// Check the mirror hierachy.
37assertTrue(mirror instanceof debug.Mirror);
38assertTrue(mirror instanceof debug.NullMirror);
39
40// Check the mirror properties.
41assertTrue(mirror.isNull());
42assertEquals('null', mirror.type());
43assertTrue(mirror.isPrimitive());
44
45// Test text representation
46assertEquals('null', mirror.toText());
47
48// Parse JSON representation and check.
49var fromJSON = eval('(' + json + ')');
50assertEquals('null', fromJSON.type);
51