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Add lazy _.filter and _.reject tests.

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John-David Dalton
2014-10-13 00:36:34 -07:00
parent d8f2cc50df
commit bf1c54e5a3
1 changed files with 29 additions and 8 deletions
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37
test/test.js
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@@ -3110,7 +3110,7 @@
test('should work in a lazy chain sequence', 2, function() { test('should work in a lazy chain sequence', 2, function() {
if (!isNpm) { if (!isNpm) {
var array = [1, 2, 3, 4], var array = [1, 2, 3, 4],
predicate = function(value) {return value > 1; }, predicate = function(value) { return value > 1; },
actual = _(array).filter(predicate).drop(2).value(); actual = _(array).filter(predicate).drop(2).value();
deepEqual(actual, [4]); deepEqual(actual, [4]);
@@ -3180,7 +3180,7 @@
test('should work in a lazy chain sequence', 2, function() { test('should work in a lazy chain sequence', 2, function() {
if (!isNpm) { if (!isNpm) {
var array = [1, 2, 3, 4], var array = [1, 2, 3, 4],
predicate = function(value) {return value < 4; }, predicate = function(value) { return value < 4; },
actual = _(array).filter(predicate).dropRight(2).value(); actual = _(array).filter(predicate).dropRight(2).value();
deepEqual(actual, [1]); deepEqual(actual, [1]);
@@ -3759,7 +3759,7 @@
test('should work in a lazy chain sequence', 2, function() { test('should work in a lazy chain sequence', 2, function() {
if (!isNpm) { if (!isNpm) {
var array = [1, 2, 3, 4], var array = [1, 2, 3, 4],
predicate = function(value) {return value > 1; }, predicate = function(value) { return value > 1; },
actual = _(array).filter(predicate).take().value(); actual = _(array).filter(predicate).take().value();
deepEqual(actual, [2]); deepEqual(actual, [2]);
@@ -3829,7 +3829,7 @@
test('should work in a lazy chain sequence', 2, function() { test('should work in a lazy chain sequence', 2, function() {
if (!isNpm) { if (!isNpm) {
var array = [1, 2, 3, 4], var array = [1, 2, 3, 4],
predicate = function(value) {return value < 4; }, predicate = function(value) { return value < 4; },
actual = _(array).filter(predicate).takeRight().value(); actual = _(array).filter(predicate).takeRight().value();
deepEqual(actual, [3]); deepEqual(actual, [3]);
@@ -9476,17 +9476,38 @@
QUnit.module('filter methods'); QUnit.module('filter methods');
_.each(['filter', 'reject'], function(methodNames) { _.each(['filter', 'reject'], function(methodName) {
var func = _[methodNames]; var func = _[methodName],
isFilter = methodName == 'filter';
test('`_.' + methodNames + '` should not modify the resulting value from within `callback`', 1, function() { test('`_.' + methodName + '` should not modify the resulting value from within `callback`', 1, function() {
var actual = func([0], function(num, index, array) { var actual = func([0], function(num, index, array) {
array[index] = 1; array[index] = 1;
return methodNames == 'filter'; return isFilter;
}); });
deepEqual(actual, [0]); deepEqual(actual, [0]);
}); });
test('`_.' + methodName + '` should work in a lazy chain sequence', 2, function() {
if (!isNpm) {
var array = [1, 2, 3],
object = { 'a': 1, 'b': 2, 'c': 3 },
doubled = function(value) { return value * 2; },
predicate = function(value) { return isFilter ? (value > 3) : (value < 3); };
var expected = [4, 6],
actual = _(array).map(doubled)[methodName](predicate).value();
deepEqual(actual, expected);
actual = _(object).mapValues(doubled)[methodName](predicate).value();
deepEqual(actual, expected);
}
else {
skipTest(2);
}
});
}); });
/*--------------------------------------------------------------------------*/ /*--------------------------------------------------------------------------*/