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require File.expand_path('../../../spec_helper', __FILE__)
require 'date'
describe "Date#prev_month" do
it "returns previous month" do
d = Date.new(2000, 9, 1).prev_month
d.should == Date.new(2000, 8, 1)
end
it "returns three months ago" do
d = Date.new(2000, 10, 1).prev_month(3)
d.should == Date.new(2000, 7, 1)
end
end
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