Money library error in substraction

February 12th, 2006

The Money library is a useful. Unfortunately, release 1.5.9 has an error. One cannot substract an amount from the empty Money.

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def test_substract_from_zero
  assert_equal -12.to_money, Money.empty - (12.to_money)
end
The test case will fail with this: 
  1) Failure:
test_substract_from_zero(MoneyTest) [./test/unit/money_test.rb:29]:
<#> expected but was
<#>.

The error is caused by Money#-(other_money):

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def -(other_money)
  return other_money.dup if cents.zero?
  ...
end
return other_money.dup if cents.zero? should be removed to allow the test case to pass.

Update (2006-02-13): Tobias already posted a new version of the library, available as a gem.

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I am François Beausoleil, a Ruby on Rails coder. During the day, I work on XLsuite. At night, I am interested many things. Read my biography

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