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      1 // Copyright 2008 the V8 project authors. All rights reserved.
      2 // Redistribution and use in source and binary forms, with or without
      3 // modification, are permitted provided that the following conditions are
      4 // met:
      5 //
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      8 //     * Redistributions in binary form must reproduce the above
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     11 //       with the distribution.
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     14 //       from this software without specific prior written permission.
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     17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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     26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27 
     28 // Flags: --expose-debug-as debug
     29 // Test the mirror object for undefined
     30 
     31 // Create mirror and JSON representation.
     32 var mirror = debug.MakeMirror(void 0);
     33 var serializer = debug.MakeMirrorSerializer();
     34 var json = JSON.stringify(serializer.serializeValue(mirror));
     35 
     36 // Check the mirror hierachy.
     37 assertTrue(mirror instanceof debug.Mirror);
     38 assertTrue(mirror instanceof debug.UndefinedMirror);
     39 
     40 // Check the mirror properties.
     41 assertTrue(mirror.isUndefined());
     42 assertEquals('undefined', mirror.type());
     43 assertTrue(mirror.isPrimitive());
     44 
     45 // Test text representation
     46 assertEquals('undefined', mirror.toText());
     47 
     48 // Parse JSON representation and check.
     49 var fromJSON = eval('(' + json + ')');
     50 assertEquals('undefined', fromJSON.type);
     51