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require File.expand_path('../../../../spec_helper', __FILE__)
describe :numeric_rect, shared: true do
before :each do
@numbers = [
20, # Integer
398.72, # Float
Rational(3, 4), # Rational
99999999**99, # Bignum
infinity_value,
nan_value
]
end
it "returns an Array" do
@numbers.each do |number|
number.send(@method).should be_an_instance_of(Array)
end
end
it "returns a two-element Array" do
@numbers.each do |number|
number.send(@method).size.should == 2
end
end
it "returns self as the first element" do
@numbers.each do |number|
if Float === number and number.nan?
number.send(@method).first.nan?.should be_true
else
number.send(@method).first.should == number
end
end
end
it "returns 0 as the last element" do
@numbers.each do |number|
number.send(@method).last.should == 0
end
end
it "raises an ArgumentError if given any arguments" do
@numbers.each do |number|
lambda { number.send(@method, number) }.should raise_error(ArgumentError)
end
end
end
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