Sha256: b54f760599222a9ae00d77ccbffebb361227ade8bff6436655552f885b2828b5
Contents?: true
Size: 1.4 KB
Versions: 83
Compression:
Stored size: 1.4 KB
Contents
require File.dirname(File.join(__rhoGetCurrentDir(), __FILE__)) + '/../../spec_helper'
describe "Fixnum#>>" do
it "returns self shifted the given amount of bits to the right" do
(7 >> 1).should == 3
(4095 >> 3).should == 511
(9245278 >> 1).should == 4622639
end
it "performs a left-shift if given a negative value" do
(7 >> -1).should == (7 << 1)
(4095 >> -3).should == (4095 << 3)
end
it "performs a right-shift if given a negative value" do
(-7 >> 1).should == -4
(-4095 >> 3).should == -512
end
it "tries to convert it's argument to an Integer using to_int" do
(7 >> 1.3).should == 3
(obj = mock('1')).should_receive(:to_int).and_return(1)
(7 >> obj).should == 3
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
it "does not raise RangeError when the given argument is out of range of Fixnum" do
(obj1 = mock('large value')).should_receive(:to_int).and_return(8000_0000_0000_0000_0000)
(obj2 = mock('large value')).should_receive(:to_int).and_return(8000_0000_0000_0000_0000)
(3 >> obj1).should == 0
(-3 >> obj2).should == -1
obj = 8e19
(3 >> obj).should == 0
(-3 >> obj).should == -1
end
end
Version data entries
83 entries across 83 versions & 1 rubygems