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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /js/src/jit-test/tests/for-of/array-iterator-proxy.js | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'js/src/jit-test/tests/for-of/array-iterator-proxy.js')
-rw-r--r-- | js/src/jit-test/tests/for-of/array-iterator-proxy.js | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/for-of/array-iterator-proxy.js b/js/src/jit-test/tests/for-of/array-iterator-proxy.js new file mode 100644 index 000000000..f410b5fc6 --- /dev/null +++ b/js/src/jit-test/tests/for-of/array-iterator-proxy.js @@ -0,0 +1,47 @@ +// An array iterator for a proxy calls the traps in a predictable order. + +load(libdir + "asserts.js"); +load(libdir + "iteration.js"); + +var s = ''; + +var handler = { + get: function (recipient, name) { + if (name == 'length') { + s += 'L'; + return 2; + } else { + s += name; + return name; + } + } +}; + +var it = Array.prototype[Symbol.iterator].call(new Proxy([0, 1], handler)); + +assertIteratorNext(it, "0"); +s += ' '; +assertIteratorNext(it, "1"); +s += ' '; +assertIteratorDone(it, undefined); +assertEq(s, "L0 L1 L"); + +s = ''; +var ki = Array.prototype.keys.call(new Proxy([0, 1], handler)); + +assertIteratorNext(ki, 0); +s += ' '; +assertIteratorNext(ki, 1); +s += ' '; +assertIteratorDone(ki, undefined); +assertEq(s, "L L L"); + +s = ''; +var ei = Array.prototype.entries.call(new Proxy([0, 1], handler)); + +assertIteratorNext(ei, [0, "0"]); +s += ' '; +assertIteratorNext(ei, [1, "1"]); +s += ' '; +assertIteratorDone(ei, undefined); +assertEq(s, "L0 L1 L"); |