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Split _.max and _.min out into _.maxBy and _.minBy.

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jdalton
2015-07-05 10:19:52 -07:00
committed by John-David Dalton
parent cb94b03e3e
commit 86b19f742c
2 changed files with 126 additions and 98 deletions
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120
test/test.js
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@@ -4724,8 +4724,8 @@
'map',
'mapKeys',
'mapValues',
'max',
'min',
'maxBy',
'minBy',
'omit',
'partition',
'pick',
@@ -4750,8 +4750,8 @@
'groupBy',
'indexBy',
'map',
'max',
'min',
'maxBy',
'minBy',
'partition',
'reduce',
'reduceRight',
@@ -4813,7 +4813,9 @@
'forOwn',
'forOwnRight',
'max',
'maxBy',
'min',
'minBy',
'some'
];
@@ -8607,10 +8609,10 @@
}
});
test('`_.max` should use `_.iteratee` internally', 1, function() {
test('`_.maxBy` should use `_.iteratee` internally', 1, function() {
if (!isModularize) {
_.iteratee = getPropB;
deepEqual(_.max(objects), objects[2]);
deepEqual(_.maxBy(objects), objects[2]);
_.iteratee = iteratee;
}
else {
@@ -8618,10 +8620,10 @@
}
});
test('`_.min` should use `_.iteratee` internally', 1, function() {
test('`_.minBy` should use `_.iteratee` internally', 1, function() {
if (!isModularize) {
_.iteratee = getPropB;
deepEqual(_.min(objects), objects[0]);
deepEqual(_.minBy(objects), objects[0]);
_.iteratee = iteratee;
}
else {
@@ -10833,10 +10835,10 @@
QUnit.module('extremum methods');
_.each(['max', 'min'], function(methodName) {
_.each(['max', 'maxBy', 'min', 'minBy'], function(methodName) {
var array = [1, 2, 3],
func = _[methodName],
isMax = methodName == 'max';
isMax = /^max/.test(methodName);
test('`_.' + methodName + '` should work with Date objects', 1, function() {
var curr = new Date,
@@ -10845,63 +10847,6 @@
strictEqual(func([curr, past]), isMax ? curr : past);
});
test('`_.' + methodName + '` should work with an `iteratee` argument', 1, function() {
var actual = func(array, function(num) {
return -num;
});
strictEqual(actual, isMax ? 1 : 3);
});
test('`_.' + methodName + '` should provide the correct `iteratee` arguments when iterating an array', 1, function() {
var args;
func(array, function() {
args || (args = slice.call(arguments));
});
deepEqual(args, [1, 0, array]);
});
test('`_.' + methodName + '` should provide the correct `iteratee` arguments when iterating an object', 1, function() {
var args,
object = { 'a': 1, 'b': 2 },
firstKey = _.first(_.keys(object));
var expected = firstKey == 'a'
? [1, 'a', object]
: [2, 'b', object];
func(object, function() {
args || (args = slice.call(arguments));
}, 0);
deepEqual(args, expected);
});
test('should work with a "_.property" style `iteratee`', 2, function() {
var objects = [{ 'a': 2 }, { 'a': 3 }, { 'a': 1 }],
actual = func(objects, 'a');
deepEqual(actual, objects[isMax ? 1 : 2]);
var arrays = [[2], [3], [1]];
actual = func(arrays, 0);
deepEqual(actual, arrays[isMax ? 1 : 2]);
});
test('`_.' + methodName + '` should work when `iteratee` returns +/-Infinity', 1, function() {
var value = isMax ? -Infinity : Infinity,
object = { 'a': value };
var actual = func([object, { 'a': value }], function(object) {
return object.a;
});
strictEqual(actual, object);
});
test('`_.' + methodName + '` should iterate an object', 1, function() {
var actual = func({ 'a': 1, 'b': 2, 'c': 3 });
strictEqual(actual, isMax ? 3 : 1);
@@ -10933,6 +10878,43 @@
});
});
_.each(['maxBy', 'minBy'], function(methodName) {
var array = [1, 2, 3],
func = _[methodName],
isMax = methodName == 'maxBy';
test('`_.' + methodName + '` should work with an `iteratee` argument', 1, function() {
var actual = func(array, function(num) {
return -num;
});
strictEqual(actual, isMax ? 1 : 3);
});
test('should work with a "_.property" style `iteratee`', 2, function() {
var objects = [{ 'a': 2 }, { 'a': 3 }, { 'a': 1 }],
actual = func(objects, 'a');
deepEqual(actual, objects[isMax ? 1 : 2]);
var arrays = [[2], [3], [1]];
actual = func(arrays, 0);
deepEqual(actual, arrays[isMax ? 1 : 2]);
});
test('`_.' + methodName + '` should work when `iteratee` returns +/-Infinity', 1, function() {
var value = isMax ? -Infinity : Infinity,
object = { 'a': value };
var actual = func([object, { 'a': value }], function(object) {
return object.a;
});
strictEqual(actual, object);
});
});
/*--------------------------------------------------------------------------*/
QUnit.module('lodash.mixin');
@@ -17318,7 +17300,9 @@
'join',
'last',
'max',
'maxBy',
'min',
'minBy',
'parseInt',
'pop',
'shift',
@@ -17531,7 +17515,7 @@
var acceptFalsey = _.difference(allMethods, rejectFalsey);
test('should accept falsey arguments', 205, function() {
test('should accept falsey arguments', 207, function() {
var emptyArrays = _.map(falsey, _.constant([]));
_.each(acceptFalsey, function(methodName) {