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allow negating Value objects

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This commit is contained in:
Josh Holtrop 2013-08-19 23:26:01 -04:00
parent 6ff11c012f
commit d72de51977
2 changed files with 11 additions and 0 deletions
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5
lib/gnucash/value.rb
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@ -59,6 +59,11 @@ module Gnucash
end end
end end
# Negate a Value
def -@
Value.new(-@val, @div)
end
# Multiply a Value object # Multiply a Value object
# +other+ should be a Numeric # +other+ should be a Numeric
def *(other) def *(other)

6
spec/gnucash/value_spec.rb
View File

@ -51,6 +51,12 @@ module Gnucash
c.should == 1.1 c.should == 1.1
end end
it "allows negating a Value object" do
a = Value.new("123/100")
b = -a
b.to_s.should == "-1.23"
end
it "allows multiplying a Value by a Numeric" do it "allows multiplying a Value by a Numeric" do
a = Value.new("100/100") a = Value.new("100/100")
b = 12 b = 12