require_relative '../../spec_helper' require_relative 'fixtures/classes' describe "Thread#key?" do before :each do @th = Thread.new do Thread.current[:oliver] = "a" end @th.join end it "tests for existence of thread local variables using symbols or strings" do @th.key?(:oliver).should == true @th.key?("oliver").should == true @th.key?(:stanley).should == false @th.key?(:stanley.to_s).should == false end it "raises exceptions on the wrong type of keys" do lambda { Thread.current.key? nil }.should raise_error(TypeError) lambda { Thread.current.key? 5 }.should raise_error(TypeError) end it "is not shared across fibers" do fib = Fiber.new do Thread.current[:val1] = 1 Fiber.yield Thread.current.key?(:val1).should be_true Thread.current.key?(:val2).should be_false end Thread.current.key?(:val1).should_not be_true fib.resume Thread.current[:val2] = 2 fib.resume Thread.current.key?(:val1).should be_false Thread.current.key?(:val2).should be_true end it "stores a local in another thread when in a fiber" do fib = Fiber.new do t = Thread.new do sleep Thread.current.key?(:value).should be_true end Thread.pass while t.status and t.status != "sleep" t[:value] = 1 t.wakeup t.join end fib.resume end end