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require 'jruby'
require 'jruby/synchronized'
describe "JRuby::Synchronized" do
before(:each) do
@cls = Class.new do
include Spec::Matchers
def call_wait
JRuby.reference(self).wait(1)
end
def expect_synchronized
lambda { call_wait }.should_not raise_error
end
def expect_unsynchronized
lambda { call_wait }.should raise_error(java.lang.IllegalMonitorStateException)
end
end
end
it "should make methods on instances of synchronized classes synchronized" do
@cls.new.expect_unsynchronized
@cls.class_eval { include JRuby::Synchronized }
@cls.new.expect_synchronized
end
it "should also affect subclasses" do
subcls = Class.new(@cls)
subcls.new.expect_unsynchronized
subcls.class_eval { include JRuby::Synchronized }
subcls.new.expect_synchronized
end
it "should not affect superclasses" do
@cls.new.expect_unsynchronized
subcls = Class.new(@cls) { include JRuby::Synchronized }
@cls.new.expect_unsynchronized
end
it "should affect existing instances" do
instance = @cls.new
instance.expect_unsynchronized
@cls.class_eval { include JRuby::Synchronized }
instance.expect_synchronized
end
it "should affect existing subclass instances" do
subcls = Class.new(@cls)
instance = subcls.new
instance.expect_unsynchronized
@cls.class_eval { include JRuby::Synchronized }
instance.expect_synchronized
end
it "should work for singleton classes" do
instance = @cls.new
instance.expect_unsynchronized
instance.extend JRuby::Synchronized
instance.expect_synchronized
end
it "should be includable only in classes" do
mod = Module.new
lambda { mod.class_eval { include JRuby::Synchronized } }.should raise_error(TypeError)
end
end
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