ruby--ruby/spec/rubyspec/core/thread/join_spec.rb

63 lines
1.6 KiB
Ruby

require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)
describe "Thread#join" do
it "returns the thread when it is finished" do
t = Thread.new {}
t.join.should equal(t)
end
it "returns the thread when it is finished when given a timeout" do
t = Thread.new {}
t.join
t.join(0).should equal(t)
end
it "coerces timeout to a Float if it is not nil" do
t = Thread.new {}
t.join
t.join(0).should equal(t)
t.join(0.0).should equal(t)
t.join(nil).should equal(t)
lambda { t.join(:foo) }.should raise_error TypeError
lambda { t.join("bar") }.should raise_error TypeError
end
it "returns nil if it is not finished when given a timeout" do
c = Channel.new
t = Thread.new { c.receive }
begin
t.join(0).should == nil
ensure
c << true
end
t.join.should == t
end
it "accepts a floating point timeout length" do
c = Channel.new
t = Thread.new { c.receive }
begin
t.join(0.01).should == nil
ensure
c << true
end
t.join.should == t
end
it "raises any exceptions encountered in the thread body" do
t = Thread.new { raise NotImplementedError.new("Just kidding") }
lambda { t.join }.should raise_error(NotImplementedError)
end
it "returns the dead thread" do
t = Thread.new { Thread.current.kill }
t.join.should equal(t)
end
it "raises any uncaught exception encountered in ensure block" do
t = ThreadSpecs.dying_thread_ensures { raise NotImplementedError.new("Just kidding") }
lambda { t.join }.should raise_error(NotImplementedError)
end
end