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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "Thread.new" do
it "creates a thread executing the given block" do
c = Channel.new
Thread.new { c << true }.join
c << false
c.receive.should == true
end
it "can pass arguments to the thread block" do
arr = []
a, b, c = 1, 2, 3
t = Thread.new(a,b,c) {|d,e,f| arr << d << e << f }
t.join
arr.should == [a,b,c]
end
it "raises an exception when not given a block" do
lambda { Thread.new }.should raise_error(ThreadError)
end
it "creates a subclass of thread calls super with a block in initialize" do
arr = []
t = ThreadSpecs::SubThread.new(arr)
t.join
arr.should == [1]
end
it "calls #initialize and raises an error if super not used" do
c = Class.new(Thread) do
def initialize
end
end
lambda {
c.new
}.should raise_error(ThreadError)
end
it "calls and respects #initialize for the block to use" do
c = Class.new(Thread) do
def initialize
ScratchPad.record [:good]
super { ScratchPad << :in_thread }
end
end
t = c.new
t.join
ScratchPad.recorded.should == [:good, :in_thread]
end
end
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