diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/Proxy/setPrototypeOf/toboolean-trap-result-false.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Proxy/setPrototypeOf/toboolean-trap-result-false.js | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/setPrototypeOf/toboolean-trap-result-false.js b/js/src/tests/test262/built-ins/Proxy/setPrototypeOf/toboolean-trap-result-false.js new file mode 100644 index 0000000000..8720cffbc7 --- /dev/null +++ b/js/src/tests/test262/built-ins/Proxy/setPrototypeOf/toboolean-trap-result-false.js @@ -0,0 +1,77 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-proxy-object-internal-methods-and-internal-slots-setprototypeof-v +description: > + Return false if ToBoolean(trap result) is false, without checking + target.[[IsExtensible]] +info: | + [[SetPrototypeOf]] (V) + + 8. Let booleanTrapResult be ToBoolean(? Call(trap, handler, « target, V »)). + 9. If booleanTrapResult is false, return false. + 10. Let extensibleTarget be ? IsExtensible(target). + 11. If extensibleTarget is true, return true. +features: [Proxy, Reflect, Reflect.setPrototypeOf] +---*/ + +var called = 0; + +var target = new Proxy({}, { + isExtensible: function() { + called += 1; + } +}); + +var p = new Proxy(target, { + setPrototypeOf: function(t, v) { + return v.attr; + } +}); + +var result; + +result = Reflect.setPrototypeOf(p, { + attr: false +}); +assert.sameValue(result, false, "false"); +assert.sameValue(called, 0, "false - isExtensible is not called"); + +result = Reflect.setPrototypeOf(p, { + attr: "" +}); +assert.sameValue(result, false, "the empty string"); +assert.sameValue(called, 0, "the empty string - isExtensible is not called"); + +result = Reflect.setPrototypeOf(p, { + attr: 0 +}); +assert.sameValue(result, false, "0"); +assert.sameValue(called, 0, "0 - isExtensible is not called"); + +result = Reflect.setPrototypeOf(p, { + attr: -0 +}); +assert.sameValue(result, false, "-0"); +assert.sameValue(called, 0, "-0 - isExtensible is not called"); + +result = Reflect.setPrototypeOf(p, { + attr: null +}); +assert.sameValue(result, false, "null"); +assert.sameValue(called, 0, "null - isExtensible is not called"); + +result = Reflect.setPrototypeOf(p, { + attr: undefined +}); +assert.sameValue(result, false, "undefined"); +assert.sameValue(called, 0, "undefined - isExtensible is not called"); + +result = Reflect.setPrototypeOf(p, { + attr: NaN +}); +assert.sameValue(result, false, "NaN"); +assert.sameValue(called, 0, "NaN - isExtensible is not called"); + +reportCompare(0, 0); |