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      1 // Copyright 2010 the V8 project authors. All rights reserved.
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      3 // modification, are permitted provided that the following conditions are
      4 // met:
      5 //
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      9 //       copyright notice, this list of conditions and the following
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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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     26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27 
     28 // Tests the Object.defineProperties method - ES 15.2.3.7
     29 // Note that the internal DefineOwnProperty method is tested through
     30 // object-define-property.js, this file only contains tests specific for
     31 // Object.defineProperties. Also note that object-create.js contains
     32 // a range of indirect tests on this method since Object.create uses
     33 // Object.defineProperties as a step in setting up the object.
     34 
     35 // Try defining with null as descriptor:
     36 try {
     37   Object.defineProperties({}, null);
     38 } catch(e) {
     39   assertTrue(/null to object/.test(e));
     40 }
     41 
     42 // Try defining with null as object
     43 try {
     44   Object.defineProperties(null, {});
     45 } catch(e) {
     46   assertTrue(/called on non-object/.test(e));
     47 }
     48 
     49 
     50 var desc = {foo: {value: 10}, bar: {get: function() {return 42; }}};
     51 var obj = {};
     52 // Check that we actually get the object back as returnvalue
     53 var x = Object.defineProperties(obj, desc);
     54 
     55 assertEquals(x.foo, 10);
     56 assertEquals(x.bar, 42);
     57 
     58 
     59 // Make sure that all property descriptors are calculated before any
     60 // modifications are done.
     61 
     62 var object = {};
     63 
     64 assertThrows(function() {
     65     Object.defineProperties(object, {
     66       foo: { value: 1 },
     67       bar: { value: 2, get: function() { return 3; } }
     68     });
     69   }, TypeError);
     70 
     71 assertEquals(undefined, object.foo);
     72 assertEquals(undefined, object.bar);
     73