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Make _.unzip and alias of _.zip.

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Former-commit-id: fca00001ad850c250f9883572c4dce7b41dde88d
This commit is contained in:
John-David Dalton
2013-07-07 15:11:19 -07:00
parent 09d560888e
commit d2fffe5b88
4 changed files with 77 additions and 102 deletions
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105
test/test.js
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@@ -3368,58 +3368,6 @@
/*--------------------------------------------------------------------------*/
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() {
@@ -3486,6 +3434,59 @@
/*--------------------------------------------------------------------------*/
QUnit.module('lodash.zip');
(function() {
var object = {
'an empty array': [
[],
[]
],
'0-tuples': [
[[], []],
[]
],
'2-tuples': [
[['moe', 'larry'], [30, 40]],
[['moe', 30], ['larry', 40]]
],
'3-tuples': [
[['moe', 'larry'], [30, 40], [true, false]],
[['moe', 30, true], ['larry', 40, false]]
]
};
_.forOwn(object, function(pair, key) {
test('should work with ' + key, function() {
var actual = _.zip.apply(_, pair[0]);
deepEqual(actual, pair[1]);
deepEqual(_.zip.apply(_, actual), actual.length ? pair[0] : []);
});
});
test('should work with tuples of different lengths', function() {
var pair = [
[['moe', 30], ['larry', 40, false]],
[['moe', 'larry'], [30, 40], [undefined, false]]
];
var actual = _.zip(pair[0]);
ok(0 in actual[2]);
deepEqual(actual, pair[1]);
actual = _.zip.apply(_, actual);
ok(2 in actual[0]);
deepEqual(actual, [['moe', 30, undefined], ['larry', 40, false]]);
});
test('should be able to consume the output of `_.unzip`', function() {
var expected = [['moe', 'larry'], [30, 40]];
deepEqual(_.unzip(_.zip(_.unzip(_.zip(expected)))), expected);
});
}());
/*--------------------------------------------------------------------------*/
QUnit.module('lodash(...).shift');
(function() {