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require File.dirname(__FILE__) + '/../../spec_helper'
require 'rational'
describe "Rational#coerce when passed [Rational]" do
it "returns the passed argument, self as Floats" do
result = Rational(3, 4).coerce(1.0)
result.should == [1.0, 0.75]
result.first.is_a?(Float).should be_true
result.last.is_a?(Float).should be_true
end
end
describe "Rational#coerce when passed [Rational]" do
it "returns the passed argument, self as Rationals" do
result = Rational(3, 4).coerce(10)
result.should == [Rational(10, 1), Rational(3, 4)]
result.first.is_a?(Rational).should be_true
result.last.is_a?(Rational).should be_true
end
end
describe "Rational#coerce" do
it "does try to convert the passed argument into a Float (using #to_f)" do
obj = mock("something")
obj.should_receive(:to_f).and_return(1.1)
Rational(3, 4).coerce(obj)
end
it "returns the passed argument, self converted to Floats" do
obj = mock("something")
obj.should_receive(:to_f).and_return(1.1)
result = Rational(3, 4).coerce(obj)
result.should == [1.1, 0.75]
result.first.is_a?(Float).should be_true
result.last.is_a?(Float).should be_true
end
end
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