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Add small array lazy chain tests for _.first and _.last.

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jdalton
2015-07-02 08:29:31 -07:00
committed by John-David Dalton
parent 82f693a2bc
commit a5e2caf40b
1 changed files with 25 additions and 17 deletions
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42
test/test.js
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@@ -4768,7 +4768,7 @@
QUnit.module('lodash.first'); QUnit.module('lodash.first');
(function() { (function() {
var array = [1, 2, 3]; var array = [1, 2, 3, 4];
test('should return the first element', 1, function() { test('should return the first element', 1, function() {
strictEqual(_.first(array), 1); strictEqual(_.first(array), 1);
@@ -4816,18 +4816,21 @@
} }
}); });
test('should work in a lazy chain sequence', 1, function() { test('should work in a lazy chain sequence', 2, function() {
if (!isNpm) { if (!isNpm) {
var array = _.range(1, LARGE_ARRAY_SIZE + 1); var largeArray = _.range(1, LARGE_ARRAY_SIZE + 1),
smallArray = array;
var wrapped = _(array).filter(function(value) { _.times(2, function(index) {
return value % 2 == 0; var array = index ? largeArray : smallArray,
predicate = function(value) { return value % 2; },
wrapped = _(array).filter(predicate);
strictEqual(wrapped.first(), _.first(_.filter(array, predicate)));
}); });
strictEqual(wrapped.first(), 2);
} }
else { else {
skipTest(); skipTest(2);
} }
}); });
@@ -9243,10 +9246,10 @@
QUnit.module('lodash.last'); QUnit.module('lodash.last');
(function() { (function() {
var array = [1, 2, 3]; var array = [1, 2, 3, 4];
test('should return the last element', 1, function() { test('should return the last element', 1, function() {
strictEqual(_.last(array), 3); strictEqual(_.last(array), 4);
}); });
test('should return `undefined` when querying empty arrays', 1, function() { test('should return `undefined` when querying empty arrays', 1, function() {
@@ -9265,7 +9268,7 @@
test('should return an unwrapped value when implicitly chaining', 1, function() { test('should return an unwrapped value when implicitly chaining', 1, function() {
if (!isNpm) { if (!isNpm) {
strictEqual(_(array).last(), 3); strictEqual(_(array).last(), 4);
} }
else { else {
skipTest(); skipTest();
@@ -9291,16 +9294,21 @@
} }
}); });
test('should work in a lazy chain sequence', 1, function() { test('should work in a lazy chain sequence', 2, function() {
if (!isNpm) { if (!isNpm) {
var array = _.range(1, LARGE_ARRAY_SIZE + 1), var largeArray = _.range(1, LARGE_ARRAY_SIZE + 1),
predicate = function(value) { return value % 2; }, smallArray = array;
wrapped = _(array).filter(predicate);
strictEqual(wrapped.last(), _.last(_.filter(array, predicate))); _.times(2, function(index) {
var array = index ? largeArray : smallArray,
predicate = function(value) { return value % 2; },
wrapped = _(array).filter(predicate);
strictEqual(wrapped.last(), _.last(_.filter(array, predicate)));
});
} }
else { else {
skipTest(); skipTest(2);
} }
}); });
}()); }());