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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/Object/assign/strings-and-symbol-order.js | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/assign/strings-and-symbol-order.js b/js/src/tests/test262/built-ins/Object/assign/strings-and-symbol-order.js new file mode 100644 index 0000000000..57cf13c377 --- /dev/null +++ b/js/src/tests/test262/built-ins/Object/assign/strings-and-symbol-order.js @@ -0,0 +1,63 @@ +// Copyright (C) 2018 André Bargull. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-object.assign +description: > + Symbol-valued properties are copied after String-valued properties. +info: | + 19.1.2.1 Object.assign ( target, ...sources ) + + ... + 4. For each element nextSource of sources, in ascending index order, do + a. ... + b. Else, + i. Let from be ! ToObject(nextSource). + ii. Let keys be ? from.[[OwnPropertyKeys]](). + c. For each element nextKey of keys in List order, do + ... + ... + + 9.1.11.1 OrdinaryOwnPropertyKeys ( O ) + + ... + 3. For each own property key P of O that is a String but is not an integer index, + in ascending chronological order of property creation, do + a. Add P as the last element of keys. + 4. For each own property key P of O that is a Symbol, in ascending chronological + order of property creation, do + a. Add P as the last element of keys. + ... + +includes: [compareArray.js] +---*/ + +var log = []; + +var sym1 = Symbol("x"); +var sym2 = Symbol("y"); + +var source = {}; + +Object.defineProperty(source, sym1, { + get: function(){ log.push("get sym(x)") }, + enumerable: true, configurable: true, +}); +Object.defineProperty(source, "a", { + get: function(){ log.push("get a") }, + enumerable: true, configurable: true, +}); +Object.defineProperty(source, sym2, { + get: function(){ log.push("get sym(y)") }, + enumerable: true, configurable: true, +}); +Object.defineProperty(source, "b", { + get: function(){ log.push("get b") }, + enumerable: true, configurable: true, +}); + +var target = Object.assign({}, source); + +assert.compareArray(log, ["get a", "get b", "get sym(x)", "get sym(y)"]); + +reportCompare(0, 0); |