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Add _.sortByMultiple.

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John-David Dalton
2014-11-23 23:26:11 -08:00
parent d8a7a7792a
commit 0fe8197100
2 changed files with 145 additions and 62 deletions
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87
test/test.js
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@@ -10712,8 +10712,8 @@
});
test('should work with a "_.pluck" style `iteratee`', 1, function() {
var actual = _.pluck(_.sortBy(objects, 'b'), 'b');
deepEqual(actual, [1, 2, 3, 4]);
var actual = _.pluck(_.sortBy(objects.concat(undefined), 'b'), 'b');
deepEqual(actual, [1, 2, 3, 4, undefined]);
});
test('should work with an object for `collection`', 1, function() {
@@ -10728,21 +10728,6 @@
deepEqual(_.sortBy(1), []);
});
test('should support sorting by an array of properties', 1, function() {
var actual = _.sortBy(objects, ['a', 'b']);
deepEqual(actual, [objects[2], objects[0], objects[3], objects[1]]);
});
test('should not error on nullish elements when sorting by multiple properties', 1, function() {
var actual = _.sortBy(objects.concat(undefined), ['a', 'b']);
deepEqual(actual, [objects[2], objects[0], objects[3], objects[1], undefined]);
});
test('should perform a stable sort when sorting by multiple properties (test in IE > 8, Opera, and V8)', 1, function() {
var actual = _.sortBy(stableOrder, ['a', 'c']);
deepEqual(actual, stableOrder);
});
test('should coerce arrays returned from `iteratee`', 1, function() {
var actual = _.sortBy(objects, function(object) {
var result = [object.a, object.b];
@@ -10754,15 +10739,72 @@
});
test('should work as an iteratee for `_.map`', 1, function() {
var array = [[2, 1, 3], [3, 2, 1]],
actual = _.map(array, _.sortBy);
var actual = _.map([[2, 1, 3], [3, 2, 1]], _.sortBy);
deepEqual(actual, [[1, 2, 3], [1, 2, 3]]);
});
}());
/*--------------------------------------------------------------------------*/
QUnit.module('lodash.sortByMultiple');
(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 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', 1, function() {
var actual = _.sortByMultiple(objects, ['a', 'b']);
deepEqual(actual, [objects[2], objects[0], objects[3], objects[1]]);
});
test('should perform a stable sort (test in IE > 8, Opera, and V8)', 1, function() {
var actual = _.sortByMultiple(stableOrder, ['a', 'c']);
deepEqual(actual, stableOrder);
});
test('should not error on nullish elements', 1, function() {
var actual = _.sortByMultiple(objects.concat(undefined), ['a', 'b']);
deepEqual(actual, [objects[2], objects[0], objects[3], objects[1], undefined]);
});
test('should work as an iteratee for `_.reduce`', 1, function() {
var objects = [
{ 'a': 'x', '0': 3 },
{ 'a': 'y', '0': 4 },
{ 'a': 'x', '0': 1 },
{ 'a': 'y', '0': 2 }
];
var actual = _.reduce([['a']], _.sortByMultiple, objects);
deepEqual(actual, [objects[0], objects[2], objects[1], objects[3]]);
});
}());
/*--------------------------------------------------------------------------*/
QUnit.module('lodash.sortedIndex');
(function() {
@@ -13409,6 +13451,7 @@
'sample',
'shuffle',
'sortBy',
'sortByMultiple',
'take',
'times',
'toArray',
@@ -13447,7 +13490,7 @@
var acceptFalsey = _.difference(allMethods, rejectFalsey);
test('should accept falsey arguments', 200, function() {
test('should accept falsey arguments', 202, function() {
var emptyArrays = _.map(falsey, _.constant([])),
isExposed = '_' in root,
oldDash = root._;
@@ -13489,7 +13532,7 @@
});
});
test('should return an array', 68, function() {
test('should return an array', 70, function() {
var array = [1, 2, 3];
_.each(returnArrays, function(methodName) {