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Contents
require File.dirname(File.join(__rhoGetCurrentDir(), __FILE__)) + '/../../spec_helper'
require File.dirname(File.join(__rhoGetCurrentDir(), __FILE__)) + '/fixtures/classes'
describe "Kernel#freeze" do
it "prevents self from being further modified" do
o = mock('o')
o.frozen?.should == false
o.freeze
o.frozen?.should == true
end
it "has no effect on immediate values" do
a = nil
b = true
c = false
d = 1
a.freeze
b.freeze
c.freeze
d.freeze
a.frozen?.should == false
b.frozen?.should == false
c.frozen?.should == false
d.frozen?.should == false
end
ruby_version_is "" ... "1.9" do
it "causes mutative calls to raise TypeError" do
o = Class.new do
def mutate; @foo = 1; end
end.new
o.freeze
lambda {o.mutate}.should raise_error(TypeError)
end
end
ruby_version_is "1.9" do
it "causes mutative calls to raise RuntimeError" do
o = Class.new do
def mutate; @foo = 1; end
end.new
o.freeze
lambda {o.mutate}.should raise_error(RuntimeError)
end
end
end
Version data entries
83 entries across 83 versions & 1 rubygems