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Unit tests for sparse arrays.

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This commit is contained in:
Jeremy Ashkenas
2011-07-13 12:36:27 -04:00
parent 5edc3761c6
commit 7573ac7751
1 changed files with 9 additions and 0 deletions
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9
test/collections.js
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@@ -77,6 +77,15 @@ $(document).ready(function() {
ok(ifnull instanceof TypeError, 'handles a null (without inital value) properly'); ok(ifnull instanceof TypeError, 'handles a null (without inital value) properly');
ok(_.reduce(null, function(){}, 138) === 138, 'handles a null (with initial value) properly'); ok(_.reduce(null, function(){}, 138) === 138, 'handles a null (with initial value) properly');
// Sparse arrays:
equals(_.reduce([], function(){}, undefined), undefined, 'undefined can be passed as a special case');
var sparseArray = [];
sparseArray[100] = 10;
sparseArray[200] = 20;
equals(_.reduce(sparseArray, function(a, b){ return a + b }), 30, 'initially-sparse arrays with no memo');
}); });
test('collections: reduceRight', function() { test('collections: reduceRight', function() {