diff options
Diffstat (limited to 'js/src/tests/non262/Function/function-name.js')
-rw-r--r-- | js/src/tests/non262/Function/function-name.js | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/js/src/tests/non262/Function/function-name.js b/js/src/tests/non262/Function/function-name.js new file mode 100644 index 0000000000..7beca56df5 --- /dev/null +++ b/js/src/tests/non262/Function/function-name.js @@ -0,0 +1,64 @@ +function testFunctionName(f) { + var name = f.name; + f.name = 'g'; + assertEq(f.name, name); + assertEq(delete f.name, true); + assertEq(f.name, ''); + assertEq(f.hasOwnProperty('name'), false); + f.name = 'g'; + assertEq(f.name, ''); + Object.defineProperty(f, 'name', {value: 'g'}); + assertEq(f.name, 'g'); +} +function testFunctionNameStrict(f) { + "use strict"; + var name = f.name; + var error; + try { + f.name = 'g'; + } catch (e) { + error = e; + } + assertEq(f.name, name); + assertEq(error instanceof TypeError, true); + assertEq(delete f.name, true); + assertEq(f.name, ''); + assertEq(f.hasOwnProperty('name'), false); + error = null; + try { + f.name = 'g'; + } catch (e) { + error = e; + } + assertEq(f.name, ''); + assertEq(error instanceof TypeError, true); + Object.defineProperty(f, 'name', {value: 'g'}); + assertEq(f.name, 'g'); +} + +assertEq(Object.getOwnPropertyDescriptor(Object, "name").writable, false); +assertEq(Object.getOwnPropertyDescriptor(Object, "name").enumerable, false); +assertEq(Object.getOwnPropertyDescriptor(Object, "name").configurable, true); +assertEq(Object.getOwnPropertyDescriptor(Object, "name").value, 'Object'); +assertEq(Object.getOwnPropertyDescriptor(function f(){}, "name").writable, false); +assertEq(Object.getOwnPropertyDescriptor(function f(){}, "name").enumerable, false); +assertEq(Object.getOwnPropertyDescriptor(function f(){}, "name").configurable, true); +assertEq(Object.getOwnPropertyDescriptor(function f(){}, "name").value, 'f'); + +// Basic test ensuring that Object.defineProperty works on pristine function. +function f() {}; +Object.defineProperty(f, 'name', {value: 'g'}); +assertEq(f.name, 'g'); + +// .name behaves as expected on scripted function. +testFunctionName(function f(){}); +testFunctionNameStrict(function f(){}); +// .name behaves as expected on builtin function. +testFunctionName(Function.prototype.apply); +testFunctionNameStrict(Function.prototype.call); +// .name behaves as expected on self-hosted builtin function. +testFunctionName(Array.prototype.forEach); +testFunctionNameStrict(Array.prototype.some); + +if (typeof reportCompare === "function") + reportCompare(0, 0); |