From 46e43f4bde4a35785b4997b81e86cd19f046b69b Mon Sep 17 00:00:00 2001 From: Minteck Date: Tue, 21 Dec 2021 16:52:28 +0100 Subject: Commit --- src/node_modules/is-arguments/test/index.js | 44 +++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 src/node_modules/is-arguments/test/index.js (limited to 'src/node_modules/is-arguments/test/index.js') diff --git a/src/node_modules/is-arguments/test/index.js b/src/node_modules/is-arguments/test/index.js new file mode 100644 index 0000000..818b7b0 --- /dev/null +++ b/src/node_modules/is-arguments/test/index.js @@ -0,0 +1,44 @@ +'use strict'; + +var test = require('tape'); +var isArguments = require('../'); +var hasToStringTag = typeof Symbol === 'function' && typeof Symbol.toStringTag === 'symbol'; + +test('primitives', function (t) { + t.notOk(isArguments([]), 'array is not arguments'); + t.notOk(isArguments({}), 'object is not arguments'); + t.notOk(isArguments(''), 'empty string is not arguments'); + t.notOk(isArguments('foo'), 'string is not arguments'); + t.notOk(isArguments({ length: 2 }), 'naive array-like is not arguments'); + t.end(); +}); + +test('arguments object', function (t) { + t.ok(isArguments(arguments), 'arguments is arguments'); + t.notOk(isArguments(Array.prototype.slice.call(arguments)), 'sliced arguments is not arguments'); + t.end(); +}); + +test('old-style arguments object', function (t) { + var isLegacyArguments = isArguments.isLegacyArguments || isArguments; + var fakeOldArguments = { + callee: function () {}, + length: 3 + }; + t.ok(isLegacyArguments(fakeOldArguments), 'old-style arguments is arguments'); + t.end(); +}); + +test('Symbol.toStringTag', { skip: !hasToStringTag }, function (t) { + var obj = {}; + obj[Symbol.toStringTag] = 'Arguments'; + t.notOk(isArguments(obj), 'object with faked toStringTag is not arguments'); + + var args = (function () { + return arguments; + }()); + args[Symbol.toStringTag] = 'Arguments'; + t.notOk(isArguments(obj), 'real arguments with faked toStringTag is not arguments'); + + t.end(); +}); -- cgit