diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/Proxy/deleteProperty/targetdesc-is-configurable-target-is-not-extensible.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Proxy/deleteProperty/targetdesc-is-configurable-target-is-not-extensible.js | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/targetdesc-is-configurable-target-is-not-extensible.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/targetdesc-is-configurable-target-is-not-extensible.js new file mode 100644 index 0000000000..4662f2ca04 --- /dev/null +++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/targetdesc-is-configurable-target-is-not-extensible.js @@ -0,0 +1,35 @@ +// Copyright (C) 2019 Aleksey Shvayka. 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-delete-p +description: > + Throw a TypeError exception if trap result is true, targetDesc is configurable, + and target is not extensible. +info: | + [[Delete]] (P) + + ... + 13. Let extensibleTarget be ? IsExtensible(target). + 14. If extensibleTarget is false, throw a TypeError exception. + ... +features: [Proxy, Reflect, proxy-missing-checks] +---*/ + +var trapCalls = 0; +var p = new Proxy({prop: 1}, { + deleteProperty: function(t, prop) { + Object.preventExtensions(t); + trapCalls++; + return true; + }, +}); + +assert.throws(TypeError, function() { + Reflect.deleteProperty(p, "prop"); +}); +assert.sameValue(trapCalls, 1); + +assert(Reflect.deleteProperty(p, "nonExistent")); +assert.sameValue(trapCalls, 2); + +reportCompare(0, 0); |