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Add support for thisArg in zipWith.

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jdalton
2015-04-18 11:24:11 -07:00
parent a08a3c6096
commit 936a1c2764
2 changed files with 47 additions and 3 deletions
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33
test/test.js
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@@ -16721,13 +16721,44 @@
QUnit.module('lodash.zipWith');
(function() {
test('should combine values in lists with given function', 2, function() {
test('should zip arrays combining their elements with `iteratee`', 2, function() {
var array1 = [1, 2, 3],
array2 = [1, 2, 3];
deepEqual(_.zipWith(array1, array2, _.add), [2, 4, 6]);
deepEqual(_.zipWith(array1, [], _.add), [1, 2, 3]);
});
test('should provide the correct `iteratee` arguments', 1, function() {
var args;
_.zipWith([1, 2], [3, 4], [5, 6], function() {
args || (args = slice.call(arguments));
});
deepEqual(args, [1, 3, 1, [1, 3, 5]]);
});
test('should support the `thisArg` argument', 1, function() {
var actual = _.zipWith([1.2, 2.3], [3.4, 4.5], function(a, b) {
return this.floor(a) + this.floor(b);
}, Math);
deepEqual(actual, [4, 6]);
});
test('should use `_.identity` when `iteratee` is nullish', 1, function() {
var array1 = [1, 2],
array2 = [3, 4],
values = [, null, undefined],
expected = _.map(values, _.constant([1, 2]));
var actual = _.map(values, function(value, index) {
return index ? _.zipWith(array1, array2, value) : _.zipWith(array1, array2);
});
deepEqual(actual, expected);
});
}())
/*--------------------------------------------------------------------------*/