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Diffstat (limited to 'js/src/tests/test262/built-ins/Object/assign/target-is-sealed-property-creation-throws.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Object/assign/target-is-sealed-property-creation-throws.js | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/assign/target-is-sealed-property-creation-throws.js b/js/src/tests/test262/built-ins/Object/assign/target-is-sealed-property-creation-throws.js new file mode 100644 index 0000000000..dd7ebae67b --- /dev/null +++ b/js/src/tests/test262/built-ins/Object/assign/target-is-sealed-property-creation-throws.js @@ -0,0 +1,61 @@ +// Copyright (C) 2021 Alexey Shvayka. All rights reserved. +// This code is governed by the license found in the LICENSE file. + +/*--- +esid: sec-object.assign +description: > + [[Set]] to non-existing property of sealed `target` fails with TypeError. +info: | + SetIntegrityLevel ( O, level ) + + [...] + 3. Let status be ? O.[[PreventExtensions]](). + [...] + + Object.assign ( target, ...sources ) + + [...] + 3. For each element nextSource of sources, do + a. If nextSource is neither undefined nor null, then + [...] + iii. For each element nextKey of keys, do + 1. Let desc be ? from.[[GetOwnProperty]](nextKey). + 2. If desc is not undefined and desc.[[Enumerable]] is true, then + [...] + b. Perform ? Set(to, nextKey, propValue, true). + + OrdinarySetWithOwnDescriptor ( O, P, V, Receiver, ownDesc ) + + [...] + 3. If IsDataDescriptor(ownDesc) is true, then + [...] + c. Let existingDescriptor be ? Receiver.[[GetOwnProperty]](P). + d. If existingDescriptor is not undefined, then + [...] + e. Else, + i. Assert: Receiver does not currently have a property P. + ii. Return ? CreateDataProperty(Receiver, P, V). + + ValidateAndApplyPropertyDescriptor ( O, P, extensible, Desc, current ) + + [...] + 2. If current is undefined, then + a. If extensible is false, return false. +features: [Symbol, Reflect] +---*/ + +var target1 = Object.seal({ foo: 1 }); + +assert.throws(TypeError, function() { + Object.assign(target1, { get bar() {} }); +}); + + +var target2 = {}; + +Object.seal(target2); +assert.throws(TypeError, function() { + Object.assign(target2, { [Symbol()]: 1 }); +}); + +reportCompare(0, 0); |