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underscore: Add unit tests and cleanup code for for-in issues. [jddalton]

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This commit is contained in:
John-David Dalton
2011-12-03 02:49:07 -05:00
parent ed4826ca19
commit 4a5c2ac818
4 changed files with 91 additions and 24 deletions
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12
test/arrays.js
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@@ -127,9 +127,12 @@ $(document).ready(function() {
});
test("arrays: indexOf", function() {
var numbers = [1, 2, 3];
var numbers = [1];
numbers[2] = 3;
numbers.indexOf = null;
equals(_.indexOf(numbers, 2), 1, 'can compute indexOf, even without the native function');
equals(_.indexOf(numbers, 3), 2, 'can compute indexOf, even without the native function');
equals(_.indexOf(numbers, void 0), -1, 'handles sparse arrays correctly');
var result = (function(){ return _.indexOf(arguments, 2); })(1, 2, 3);
equals(result, 1, 'works on an arguments object');
equals(_.indexOf(null, 2), -1, 'handles nulls properly');
@@ -148,10 +151,13 @@ $(document).ready(function() {
});
test("arrays: lastIndexOf", function() {
var numbers = [1, 0, 1, 0, 0, 1, 0, 0, 0];
var numbers = [1, 0, 1, 0, 0, 1, 0];
numbers[8] = 0;
numbers.lastIndexOf = null;
equals(_.lastIndexOf(numbers, 1), 5, 'can compute lastIndexOf, even without the native function');
equals(_.lastIndexOf(numbers, 0), 8, 'lastIndexOf the other element');
equals(_.lastIndexOf(numbers, void 0), -1, 'handles sparse arrays correctly');
var result = (function(){ return _.lastIndexOf(arguments, 1); })(1, 0, 1, 0, 0, 1, 0, 0, 0);
equals(result, 5, 'works on an arguments object');
equals(_.indexOf(null, 2), -1, 'handles nulls properly');