Added test case for zero in isNaturalNumber tests.
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@ -68,6 +68,11 @@ describe('js utils', function() {
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a.should.equal(false);
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});
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it('true for zero', function() {
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var a = JSUtil.isNaturalNumber(0);
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a.should.equal(true);
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});
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it('true for positive integer', function() {
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var a = JSUtil.isNaturalNumber(1000);
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a.should.equal(true);
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