diff options
Diffstat (limited to 'spec/rubyspec/core/fiber/new_spec.rb')
-rw-r--r-- | spec/rubyspec/core/fiber/new_spec.rb | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/spec/rubyspec/core/fiber/new_spec.rb b/spec/rubyspec/core/fiber/new_spec.rb new file mode 100644 index 0000000000..a3361acc65 --- /dev/null +++ b/spec/rubyspec/core/fiber/new_spec.rb @@ -0,0 +1,41 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +with_feature :fiber do + describe "Fiber.new" do + it "creates a fiber from the given block" do + fiber = Fiber.new {} + fiber.resume + fiber.should be_an_instance_of(Fiber) + end + + it "creates a fiber from a subclass" do + class MyFiber < Fiber + end + fiber = MyFiber.new {} + fiber.resume + fiber.should be_an_instance_of(MyFiber) + end + + it "raises an ArgumentError if called without a block" do + lambda { Fiber.new }.should raise_error(ArgumentError) + end + + it "does not invoke the block" do + invoked = false + fiber = Fiber.new { invoked = true } + invoked.should be_false + fiber.resume + end + + it "closes over lexical environments" do + o = Object.new + def o.f + a = 1 + f = Fiber.new { a = 2 } + f.resume + a + end + o.f.should == 2 + end + end +end |