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Add _.unzip. [closes #225]

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Former-commit-id: 4b2c7fc068fd430f3d78de850a5f7670fd0e1a4e
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John-David Dalton
2013-04-02 22:34:15 -07:00
parent 265ca8ba67
commit e76360c1b5
6 changed files with 138 additions and 26 deletions
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52
test/test.js
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@@ -2787,6 +2787,58 @@
/*--------------------------------------------------------------------------*/
QUnit.module('lodash.unzip');
(function() {
var object = {
'an empty array': [
[],
[]
],
'0-tuples': [
[[], []],
[]
],
'1-tuples': [
[['moe'], ['larry']],
[['moe', 'larry']]
],
'2-tuples': [
[['moe', 30], ['larry', 40]],
[['moe', 'larry'], [30, 40]]
],
'3-tuples': [
[['moe', 30, true], ['larry', 40, false]],
[['moe', 'larry'], [30, 40], [true, false]]
]
};
_.forOwn(object, function(pair, key) {
test('should work with ' + key, function() {
var actual = _.unzip(pair[0]);
deepEqual(actual, pair[1]);
deepEqual(_.zip.apply(_, actual), pair[1].length ? pair[0] : pair[1]);
});
});
test('should work with tuples of different lengths', function() {
var pair = [
[['moe', 30], ['larry', 40, false]],
[['moe', 'larry'], [30, 40], [undefined, false]]
];
var actual = _.unzip(pair[0]);
ok(1 in actual);
deepEqual(actual, pair[1]);
actual = _.zip.apply(_, actual);
ok(2 in actual[0]);
deepEqual(actual, [['moe', 30, undefined], ['larry', 40, false]]);
});
}());
/*--------------------------------------------------------------------------*/
QUnit.module('lodash.where');
(function() {