test262/test/built-ins/Number/S9.3_A5_T1.js

104 lines
2.9 KiB
JavaScript

// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
info: |
Result of number conversion from object value is the result
of conversion from primitive value
es5id: 9.3_A5_T1
description: >
new Number(), new Number(0), new Number(Number.NaN), new
Number(null), new Number(void 0) and others convert to Number by
explicit transformation
---*/
assert.sameValue(Number(new Number()), 0, 'Number(new Number()) must return 0');
assert.sameValue(Number(new Number(0)), 0, 'Number(new Number(0)) must return 0');
// CHECK#3
assert.sameValue(Number(new Number(NaN)), NaN, 'Number(new Number(NaN)) returns NaN');
assert.sameValue(Number(new Number(null)), 0, 'Number(new Number(null)) must return 0');
// CHECK#5
assert.sameValue(Number(new Number(void 0)), NaN, 'Number(new Number(void 0)) returns NaN');
assert.sameValue(Number(new Number(true)), 1, 'Number(new Number(true)) must return 1');
assert.sameValue(Number(new Number(false)), +0, 'Number(new Number(false)) must return +0');
assert.sameValue(Number(new Boolean(true)), 1, 'Number(new Boolean(true)) must return 1');
assert.sameValue(Number(new Boolean(false)), +0, 'Number(new Boolean(false)) must return +0');
// CHECK#10
assert.sameValue(Number(new Array(2, 4, 8, 16, 32)), NaN, 'Number(new Array(2, 4, 8, 16, 32)) returns NaN');
// CHECK#11
var myobj1 = {
ToNumber: function() {
return 12345;
},
toString: function() {
return "67890";
},
valueOf: function() {
return "[object MyObj]";
}
};
assert.sameValue(Number(myobj1), NaN, 'Number("{ToNumber: function() {return 12345;}, toString: function() {return "67890";}, valueOf: function() {return "[object MyObj]";}}) returns NaN');
// CHECK#12
var myobj2 = {
ToNumber: function() {
return 12345;
},
toString: function() {
return "67890";
},
valueOf: function() {
return "9876543210";
}
};
assert.sameValue(
Number(myobj2),
9876543210,
'Number("{ToNumber: function() {return 12345;}, toString: function() {return "67890";}, valueOf: function() {return "9876543210";}}) must return 9876543210'
);
// CHECK#13
var myobj3 = {
ToNumber: function() {
return 12345;
},
toString: function() {
return "[object MyObj]";
}
};
assert.sameValue(Number(myobj3), NaN, 'Number("{ToNumber: function() {return 12345;}, toString: function() {return "[object MyObj]";}}) returns NaN');
// CHECK#14
var myobj4 = {
ToNumber: function() {
return 12345;
},
toString: function() {
return "67890";
}
};
assert.sameValue(
Number(myobj4),
67890,
'Number("{ToNumber: function() {return 12345;}, toString: function() {return "67890";}}) must return 67890'
);
// CHECK#15
var myobj5 = {
ToNumber: function() {
return 12345;
}
};
assert.sameValue(Number(myobj5), NaN, 'Number({ToNumber: function() {return 12345;}}) returns NaN');