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require_relative '../../spec_helper'
describe "Mutex#lock" do
before :each do
ScratchPad.clear
end
it "returns self" do
m = Mutex.new
m.lock.should == m
m.unlock
end
it "blocks the caller if already locked" do
m = Mutex.new
m.lock
-> { m.lock }.should block_caller
end
it "does not block the caller if not locked" do
m = Mutex.new
-> { m.lock }.should_not block_caller
end
# Unable to find a specific ticket but behavior change may be
# related to this ML thread.
it "raises a ThreadError when used recursively" do
m = Mutex.new
m.lock
-> {
m.lock
}.should raise_error(ThreadError)
end
end
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