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require File.expand_path('../../../../spec_helper', __FILE__)
describe :numeric_real, shared: true do
before :each do
@numbers = [
20, # Integer
398.72, # Float
Rational(3, 4), # Rational
bignum_value, # Bignum
infinity_value,
nan_value
].map{|n| [n,-n]}.flatten
end
it "returns self" do
@numbers.each do |number|
if number.to_f.nan?
number.real.nan?.should be_true
else
number.real.should == number
end
end
end
it "raises an ArgumentError if given any arguments" do
@numbers.each do |number|
lambda { number.real(number) }.should raise_error(ArgumentError)
end
end
end
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