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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/Proxy/setPrototypeOf/toboolean-trap-result-true-target-is-extensible.js | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/setPrototypeOf/toboolean-trap-result-true-target-is-extensible.js b/js/src/tests/test262/built-ins/Proxy/setPrototypeOf/toboolean-trap-result-true-target-is-extensible.js new file mode 100644 index 0000000000..6da14809f0 --- /dev/null +++ b/js/src/tests/test262/built-ins/Proxy/setPrototypeOf/toboolean-trap-result-true-target-is-extensible.js @@ -0,0 +1,80 @@ +// 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 true if ToBoolean(trap result) is true, and target.[[IsExtensible]] is + true +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, Symbol] +---*/ + +var called; +var target = new Proxy({}, { + isExtensible: function() { + called += 1; + return true; + }, + getPrototypeOf: function() { + throw new Test262Error("target.[[GetPrototypeOf]] is not called"); + } +}); + +var p = new Proxy(target, { + setPrototypeOf: function(t, v) { + return v.attr; + } +}); + +var result; + +called = 0; +result = Reflect.setPrototypeOf(p, { + attr: true +}); +assert.sameValue(result, true, "true"); +assert.sameValue(called, 1, "true - isExtensible is called"); + +called = 0; +result = Reflect.setPrototypeOf(p, { + attr: "false" +}); +assert.sameValue(result, true, "string"); +assert.sameValue(called, 1, "string - isExtensible is called"); + +called = 0; +result = Reflect.setPrototypeOf(p, { + attr: 42 +}); +assert.sameValue(result, true, "42"); +assert.sameValue(called, 1, "number - isExtensible is called"); + +called = 0; +result = Reflect.setPrototypeOf(p, { + attr: p +}); +assert.sameValue(result, true, "p"); +assert.sameValue(called, 1, "object - isExtensible is called"); + +called = 0; +result = Reflect.setPrototypeOf(p, { + attr: [] +}); +assert.sameValue(result, true, "[]"); +assert.sameValue(called, 1, "[] - isExtensible is called"); + +called = 0; +result = Reflect.setPrototypeOf(p, { + attr: Symbol(1) +}); +assert.sameValue(result, true, "symbol"); +assert.sameValue(called, 1, "symbol - isExtensible is called"); + +reportCompare(0, 0); |