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require File.expand_path('../../../spec_helper', __FILE__)
ruby_version_is "1.9" do
describe "Float#denominator" do
before(:each) do
@numbers = [
0.0,
29871.22736282,
7772222663.0,
1.4592,
].map {|n| [0-n, n]}.flatten
end
it "returns an Integer" do
@numbers.each do |number|
number.denominator.should be_kind_of(Integer)
end
end
it "converts self to a Rational and returns the denominator" do
@numbers.each do |number|
number.denominator.should == Rational(number).denominator
end
end
it "returns 1 for NaN and Infinity" do
nan_value.denominator.should == 1
infinity_value.denominator.should == 1
end
end
end
|
