diff --git a/test/built-ins/Date/prototype/toJSON/called-as-function.js b/test/built-ins/Date/prototype/toJSON/called-as-function.js new file mode 100644 index 0000000000..92cebf60f7 --- /dev/null +++ b/test/built-ins/Date/prototype/toJSON/called-as-function.js @@ -0,0 +1,32 @@ +// Copyright (C) 2020 Alexey Shvayka. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-date.prototype.tojson +description: > + `this` value is resolved using strict mode semantics, + throwing TypeError if called as top-level function. +info: | + Date.prototype.toJSON ( key ) + + 1. Let O be ? ToObject(this value). + + ToObject ( argument ) + + Argument Type: Undefined + Result: Throw a TypeError exception. +features: [Symbol, Symbol.toPrimitive] +---*/ + +[Symbol.toPrimitive, "toString", "valueOf", "toISOString"].forEach(function(key) { + Object.defineProperty(this, key, { + get: function() { + throw new Test262Error(String(key) + " lookup should not be performed"); + }, + }); +}, this); + +var toJSON = Date.prototype.toJSON; +assert.throws(TypeError, function() { + toJSON(); +});