Contents

$LOAD_PATH << File.expand_path(File.dirname(__FILE__) + "/../lib")
require 'money/variable_exchange_bank'

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

5 entries across 5 versions & 4 rubygems

Version	Path
FooBarWidget-money-2.0.0	test/exchange_bank_spec.rb
jmcnevin-money-2.0.0	test/exchange_bank_spec.rb
jmcnevin-money-2.0.1	test/exchange_bank_spec.rb
sevenwire-money-2.0.0	test/exchange_bank_spec.rb
money-2.0.0	test/exchange_bank_spec.rb