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Contents
require File.expand_path('../../../spec_helper', __FILE__)
describe "Fixnum#^" do
it "returns self bitwise EXCLUSIVE OR other" do
(3 ^ 5).should == 6
(-2 ^ -255).should == 255
(5 ^ bignum_value + 0xffff_ffff).should == 0x8000_0000_ffff_fffa
end
it "returns self bitwise EXCLUSIVE OR a Bignum" do
(-1 ^ 2**64).should == -18446744073709551617
end
ruby_version_is "" ... "1.9" do
ruby_bug "#", "1.8.6" do
it "doesn't raise an error if passed a Float out of Fixnum range" do
lambda { 1 ^ bignum_value(10000).to_f }.should_not raise_error()
lambda { 1 ^ -bignum_value(10000).to_f }.should_not raise_error()
end
end
it "converts a Float to an Integer" do
(5 ^ 4.3).should == 1
(-7 ^ 15.2).should == -10
end
end
it "tries to convert the given argument to an Integer using to_int" do
(obj = mock('4')).should_receive(:to_int).and_return(4)
(3 ^ obj).should == 7
end
it "raises a TypeError when the given argument can't be converted to Integer" do
obj = mock('asdf')
lambda { 3 ^ obj }.should raise_error(TypeError)
obj.should_receive(:to_int).and_return("asdf")
lambda { 3 ^ obj }.should raise_error(TypeError)
end
ruby_bug "#", "1.8.6" do # Fixed at MRI 1.8.7
it "coerces arguments correctly even if it is a Bignum" do
(obj = mock('large value')).should_receive(:to_int).and_return(8000_0000_0000_0000_0000)
(3 ^ obj).should == 80000000000000000003
end
end
end
Version data entries
52 entries across 52 versions & 2 rubygems