js/src/jit-test/tests/collections/Array-of-surfaces.js

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0 1 // Check superficial features of Array.of.
michael@0 2
michael@0 3 load(libdir + "asserts.js");
michael@0 4
michael@0 5 var desc = Object.getOwnPropertyDescriptor(Array, "of");
michael@0 6 assertEq(desc.configurable, true);
michael@0 7 assertEq(desc.enumerable, false);
michael@0 8 assertEq(desc.writable, true);
michael@0 9 assertEq(Array.of.length, 0);
michael@0 10 assertThrowsInstanceOf(() => new Array.of(), TypeError); // not a constructor
michael@0 11
michael@0 12 // When the this-value passed in is not a constructor, the result is an array.
michael@0 13 for (let v of [undefined, null, false, "cow"])
michael@0 14 assertEq(Array.isArray(Array.of.call(v)), true);

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