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Add _.sortByOrder.

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This commit is contained in:
octref
2015-02-27 00:30:09 -05:00
committed by jdalton
parent 3aa40d4df6
commit 4ce4f1d758
2 changed files with 182 additions and 2 deletions
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72
test/test.js
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@@ -13115,6 +13115,73 @@
/*--------------------------------------------------------------------------*/
QUnit.module('lodash.sortByOrder');
(function() {
function Pair(a, b, c) {
this.a = a;
this.b = b;
this.c = c;
}
var objects = [
{ 'a': 'x', 'b': 3 },
{ 'a': 'y', 'b': 4 },
{ 'a': 'x', 'b': 1 },
{ 'a': 'y', 'b': 2 }
];
var complexObjects = [
{ 'a': 'x', 'b': 3, 'c': 'bar' },
{ 'a': 'y', 'b': 4, 'c': 'foo' },
{ 'a': 'x', 'b': 1, 'c': 'foo' },
{ 'a': 'y', 'b': 2, 'c': 'bar' }
]
var stableOrder = [
new Pair(1, 1, 1), new Pair(1, 2, 1),
new Pair(1, 1, 1), new Pair(1, 2, 1),
new Pair(1, 3, 1), new Pair(1, 4, 1),
new Pair(1, 5, 1), new Pair(1, 6, 1),
new Pair(2, 1, 2), new Pair(2, 2, 2),
new Pair(2, 3, 2), new Pair(2, 4, 2),
new Pair(2, 5, 2), new Pair(2, 6, 2),
new Pair(undefined, 1, 1), new Pair(undefined, 2, 1),
new Pair(undefined, 3, 1), new Pair(undefined, 4, 1),
new Pair(undefined, 5, 1), new Pair(undefined, 6, 1)
];
test('should sort mutliple properties in ascending order by default', 1, function() {
var actual = _.sortByOrder(objects, ['a', 'b']);
deepEqual(actual, _.at(objects, [2, 0, 3, 1]));
});
test('should sort multiple properties depending on specified orders', 1, function() {
var actual = _.sortByOrder(complexObjects, ['a', 'b'], [false, true]);
deepEqual(actual, _.at(complexObjects, [3, 1, 2, 0]));
});
test('should sort ascendingly for property not specified', 1, function() {
var actual = _.sortByOrder(complexObjects, ['a', 'c'], [false]);
deepEqual(actual, _.at(complexObjects, [3, 1, 0, 2]));
});
test('should perform a stable sort (test in IE > 8, Opera, and V8)', 1, function() {
var actual = _.sortByOrder(stableOrder, ['a', 'c']);
deepEqual(actual, stableOrder);
});
test('should not error on nullish elements', 1, function() {
try {
var actual = _.sortByOrder(objects.concat(undefined), ['a', 'b']);
} catch(e) {}
deepEqual(actual, [objects[2], objects[0], objects[3], objects[1], undefined]);
});
}());
/*--------------------------------------------------------------------------*/
QUnit.module('sortedIndex methods');
_.each(['sortedIndex', 'sortedLastIndex'], function(methodName) {
@@ -16119,6 +16186,7 @@
'shuffle',
'sortBy',
'sortByAll',
'sortByOrder',
'take',
'times',
'toArray',
@@ -16133,7 +16201,7 @@
var acceptFalsey = _.difference(allMethods, rejectFalsey);
test('should accept falsey arguments', 211, function() {
test('should accept falsey arguments', 213, function() {
var emptyArrays = _.map(falsey, _.constant([])),
isExposed = '_' in root,
oldDash = root._;
@@ -16175,7 +16243,7 @@
});
});
test('should return an array', 70, function() {
test('should return an array', 72, function() {
var array = [1, 2, 3];
_.each(returnArrays, function(methodName) {