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fueltype_spec.rb
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fueltype_spec.rb
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require File.expand_path("../../spec_helper", __FILE__)
describe Fueltype do
before(:each) do
@column_name = :price_per_liter
@acts_as_price_model = stub_model(Fueltype, :name => "Euro 95", :price_per_liter => "1.55")
@seperator = "."
end
context "given an empty fueltype" do
it "should give an invalid fueltype and not save it" do
fueltype = Fueltype.new
should validate_presence_of :name
should validate_presence_of @column_name
fueltype.valid?.should be_false
fueltype.save.should be_false
end
end
context "given an valid fueltype" do
it "should be valid and saved" do
fueltype = Fueltype.new @acts_as_price_model.attributes
fueltype.valid?.should be_true
fueltype.save.should be_true
end
end
context "return the fueltype price" do
it "should return the price in cents" do
columns_in_cents.each do |column|
@acts_as_price_model.send(column).should == 155
end
end
it "should return the price" do
columns_in_doubles.each do |column|
@acts_as_price_model.send(column).should == "1.55"
end
end
end
context "set the price per liter for hundred different prices to test if you got no floating point problems" do
1.upto(100).each do |i|
it "should set the price per liter in cents and return it correctly" do
test_setter_in_cents i.to_s, @seperator
end
it "should set the price per liter and return it correctly" do
test_setter_in_doubles sprintf("%.2f", i.to_f / 100), @seperator
end
end
end
context "given a float as price per liter" do
it "should convert it to the right price in cents" do
test_setter_in_doubles "1.5", @seperator
test_setter_in_doubles "2.05", @seperator
end
end
context "given the price is zero" do
it "should return an empty price per liter" do
test_setter_in_cents "", @seperator
test_setter_in_doubles "", @seperator
end
end
end