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-rw-r--r-- | spec/ruby/core/unboundmethod/bind_call_spec.rb | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/spec/ruby/core/unboundmethod/bind_call_spec.rb b/spec/ruby/core/unboundmethod/bind_call_spec.rb new file mode 100644 index 0000000000..8f25f8bd0d --- /dev/null +++ b/spec/ruby/core/unboundmethod/bind_call_spec.rb @@ -0,0 +1,50 @@ +require_relative '../../spec_helper' +require_relative 'fixtures/classes' + +describe "UnboundMethod#bind_call" do + before :each do + @normal_um = UnboundMethodSpecs::Methods.new.method(:foo).unbind + @parent_um = UnboundMethodSpecs::Parent.new.method(:foo).unbind + @child1_um = UnboundMethodSpecs::Child1.new.method(:foo).unbind + @child2_um = UnboundMethodSpecs::Child2.new.method(:foo).unbind + end + + it "raises TypeError if object is not kind_of? the Module the method defined in" do + -> { @normal_um.bind_call(UnboundMethodSpecs::B.new) }.should raise_error(TypeError) + end + + it "binds and calls the method if object is kind_of the Module the method defined in" do + @normal_um.bind_call(UnboundMethodSpecs::Methods.new).should == true + end + + it "binds and calls the method on any object when UnboundMethod is unbound from a module" do + UnboundMethodSpecs::Mod.instance_method(:from_mod).bind_call(Object.new).should == nil + end + + it "binds and calls the method for any object kind_of? the Module the method is defined in" do + @parent_um.bind_call(UnboundMethodSpecs::Child1.new).should == nil + @child1_um.bind_call(UnboundMethodSpecs::Parent.new).should == nil + @child2_um.bind_call(UnboundMethodSpecs::Child1.new).should == nil + end + + it "binds and calls a Kernel method retrieved from Object on BasicObject" do + Object.instance_method(:instance_of?).bind_call(BasicObject.new, BasicObject).should == true + end + + it "binds and calls a Parent's class method to any Child's class methods" do + um = UnboundMethodSpecs::Parent.method(:class_method).unbind + um.bind_call(UnboundMethodSpecs::Child1).should == "I am UnboundMethodSpecs::Child1" + end + + it "will raise when binding a an object singleton's method to another object" do + other = UnboundMethodSpecs::Parent.new + p = UnboundMethodSpecs::Parent.new + class << p + def singleton_method + :single + end + end + um = p.method(:singleton_method).unbind + ->{ um.bind_call(other) }.should raise_error(TypeError) + end +end |