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require_relative '../../spec_helper'
describe :rational_div_rat, shared: true do
it "performs integer division and returns the result" do
Rational(2, 3).div(Rational(2, 3)).should == 1
Rational(-2, 9).div(Rational(-9, 2)).should == 0
end
it "raises a ZeroDivisionError when the argument has a numerator of 0" do
-> { Rational(3, 4).div(Rational(0, 3)) }.should raise_error(ZeroDivisionError)
end
it "raises a ZeroDivisionError when the argument has a numerator of 0.0" do
-> { Rational(3, 4).div(Rational(0.0, 3)) }.should raise_error(ZeroDivisionError)
end
end
describe :rational_div_float, shared: true do
it "performs integer division and returns the result" do
Rational(2, 3).div(30.333).should == 0
Rational(2, 9).div(Rational(-8.6)).should == -1
Rational(3.12).div(0.5).should == 6
end
it "raises a ZeroDivisionError when the argument is 0.0" do
-> { Rational(3, 4).div(0.0) }.should raise_error(ZeroDivisionError)
end
end
describe :rational_div_int, shared: true do
it "performs integer division and returns the result" do
Rational(2, 1).div(1).should == 2
Rational(25, 5).div(-50).should == -1
end
it "raises a ZeroDivisionError when the argument is 0" do
-> { Rational(3, 4).div(0) }.should raise_error(ZeroDivisionError)
end
end
describe :rational_div, shared: true do
it "returns an Integer" do
Rational(229, 21).div(82).should be_kind_of(Integer)
end
it "raises an ArgumentError if passed more than one argument" do
-> { Rational(3, 4).div(2,3) }.should raise_error(ArgumentError)
end
# See http://redmine.ruby-lang.org/issues/show/1648
it "raises a TypeError if passed a non-numeric argument" do
-> { Rational(3, 4).div([]) }.should raise_error(TypeError)
end
end
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