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Add tests for "_.pluck" style callbacks to _.max, _.min, and _.uniq.

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John-David Dalton
2014-07-15 09:22:39 -07:00
parent b3a4b8085c
commit e31d7178b4
1 changed files with 34 additions and 10 deletions
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44
test/test.js
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@@ -7250,6 +7250,18 @@
strictEqual(actual, isMax ? 1 : 3);
});
test('should work with a "_.pluck" style `callback`', 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 used as a callback for `_.map`', 1, function() {
var array = [[2, 3, 1], [5, 6, 4], [8, 9, 7]],
actual = _.map(array, func);
@@ -7257,6 +7269,17 @@
deepEqual(actual, isMax ? [3, 6, 9] : [1, 4, 7]);
});
test('`_.' + methodName + '` should work when `callback` 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);
@@ -7269,16 +7292,6 @@
});
});
test('`_.' + methodName + '` should work when `callback` returns +/-Infinity', 1, function() {
var object = { 'a': (isMax ? -Infinity : Infinity) };
var actual = func([object, { 'a': object.a }], function(object) {
return object.a;
});
strictEqual(actual, object);
});
test('`_.' + methodName + '` should work with extremely large arrays', 1, function() {
var array = _.range(0, 5e5);
strictEqual(func(array), isMax ? 499999 : 0);
@@ -10758,6 +10771,17 @@
deepEqual(actual, [1, 2, 3]);
});
test('should work with a "_.pluck" style `callback`', 2, function() {
var actual = _.uniq(objects, 'a');
deepEqual(actual, objects.slice(0, 3));
var arrays = [[2], [3], [1], [2], [3], [1]];
actual = _.uniq(arrays, 0);
deepEqual(actual, arrays.slice(0, 3));
});
test('should perform an unsorted uniq operation when used as a callback for `_.map`', 1, function() {
var array = [[2, 1, 2], [1, 2, 1]],
actual = _.map(array, _.uniq);