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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/language/statements/class/subclass/builtin-objects/Function/instance-length.js | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/subclass/builtin-objects/Function/instance-length.js b/js/src/tests/test262/language/statements/class/subclass/builtin-objects/Function/instance-length.js new file mode 100644 index 0000000000..d14cd344d4 --- /dev/null +++ b/js/src/tests/test262/language/statements/class/subclass/builtin-objects/Function/instance-length.js @@ -0,0 +1,29 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +es6id: 19.2.4.1 +description: Subclassed Function instances has length and name properties +info: | + 19.2.4.1 length + + The value of the length property is an integer that indicates the typical + number of arguments expected by the function. However, the language permits + the function to be invoked with some other number of arguments. The behaviour + of a function when invoked on a number of arguments other than the number + specified by its length property depends on the function. This property has + the attributes { [[Writable]]: false, [[Enumerable]]: false, + [[Configurable]]: true }. +includes: [propertyHelper.js] +---*/ + +class Fn extends Function {} + +var fn = new Fn('a', 'b', 'return a + b'); + +assert.sameValue(fn.length, 2); + +verifyNotEnumerable(fn, 'length'); +verifyNotWritable(fn, 'length'); +verifyConfigurable(fn, 'length'); + +reportCompare(0, 0); |