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Diffstat (limited to 'js/src/tests/test262/built-ins/Function/prototype/toString/not-a-constructor.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Function/prototype/toString/not-a-constructor.js | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Function/prototype/toString/not-a-constructor.js b/js/src/tests/test262/built-ins/Function/prototype/toString/not-a-constructor.js new file mode 100644 index 0000000000..b13c0c51a2 --- /dev/null +++ b/js/src/tests/test262/built-ins/Function/prototype/toString/not-a-constructor.js @@ -0,0 +1,39 @@ +// Copyright (C) 2020 Rick Waldron. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-ecmascript-standard-built-in-objects +description: > + Function.prototype.toString does not implement [[Construct]], is not new-able +info: | + ECMAScript Function Objects + + Built-in function objects that are not identified as constructors do not + implement the [[Construct]] internal method unless otherwise specified in + the description of a particular function. + + sec-evaluatenew + + ... + 7. If IsConstructor(constructor) is false, throw a TypeError exception. + ... +includes: [isConstructor.js] +features: [Reflect.construct, arrow-function] +---*/ + +assert.sameValue( + isConstructor(Function.prototype.toString), + false, + 'isConstructor(Function.prototype.toString) must return false' +); + +assert.throws(TypeError, () => { + new Function.prototype.toString(); +}, '`new Function.prototype.toString()` throws TypeError'); + +var toString = Function.prototype.toString; +assert.throws(TypeError, () => { + new toString; +}, '`new toString` throws TypeError'); + +reportCompare(0, 0); |