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$LOAD_PATH << File.expand_path(File.dirname(__FILE__) + "/../lib")
require 'money/variable_exchange_bank'
require 'money/errors'
describe Money::VariableExchangeBank do
before :each do
@bank = Money::VariableExchangeBank.new
end
it "returns the previously specified conversion rate" do
@bank.add_rate("USD", "EUR", 0.788332676)
@bank.add_rate("EUR", "YEN", 122.631477)
@bank.get_rate("USD", "EUR").should == 0.788332676
@bank.get_rate("EUR", "YEN").should == 122.631477
end
it "treats currency names case-insensitively" do
@bank.add_rate("usd", "eur", 1)
@bank.get_rate("USD", "EUR").should == 1
@bank.same_currency?("USD", "usd").should be_true
@bank.same_currency?("EUR", "usd").should be_false
end
it "returns nil if the conversion rate is unknown" do
@bank.get_rate("American Pesos", "EUR").should be_nil
end
it "exchanges money from one currency to another according to the specified conversion rates" do
@bank.add_rate("USD", "EUR", 0.5)
@bank.add_rate("EUR", "YEN", 10)
@bank.exchange(10_00, "USD", "EUR").should == 5_00
@bank.exchange(500_00, "EUR", "YEN").should == 5000_00
end
it "rounds the exchanged result down" do
@bank.add_rate("USD", "EUR", 0.788332676)
@bank.add_rate("EUR", "YEN", 122.631477)
@bank.exchange(10_00, "USD", "EUR").should == 788
@bank.exchange(500_00, "EUR", "YEN").should == 6131573
end
it "raises Money::UnknownRate upon conversion if the conversion rate is unknown" do
block = lambda { @bank.exchange(10, "USD", "EUR") }
block.should raise_error(Money::UnknownRate)
end
end
Version data entries
10 entries across 10 versions & 1 rubygems