require_relative '../../spec_helper' require_relative 'fixtures/classes' describe "Binding#eval" do it "behaves like Kernel.eval(..., self)" do obj = BindingSpecs::Demo.new(1) bind = obj.get_binding bind.eval("@secret += square(3)").should == 10 bind.eval("a").should be_true bind.eval("class Inside; end") bind.eval("Inside.name").should == "BindingSpecs::Demo::Inside" end it "does not leak variables to cloned bindings" do obj = BindingSpecs::Demo.new(1) bind = obj.get_empty_binding bind2 = bind.dup bind.eval("x = 72") bind.local_variables.should == [:x] bind2.local_variables.should == [] end it "inherits __LINE__ from the enclosing scope" do obj = BindingSpecs::Demo.new(1) bind = obj.get_binding bind.eval("__LINE__").should == obj.get_line_of_binding end it "preserves __LINE__ across multiple calls to eval" do obj = BindingSpecs::Demo.new(1) bind = obj.get_binding bind.eval("__LINE__").should == obj.get_line_of_binding bind.eval("__LINE__").should == obj.get_line_of_binding end it "increments __LINE__ on each line of a multiline eval" do obj = BindingSpecs::Demo.new(1) bind = obj.get_binding bind.eval("#foo\n__LINE__").should == obj.get_line_of_binding + 1 end it "inherits __LINE__ from the enclosing scope even if the Binding is created with #send" do obj = BindingSpecs::Demo.new(1) bind, line = obj.get_binding_with_send_and_line bind.eval("__LINE__").should == line end it "starts with a __LINE__ of 1 if a filename is passed" do bind = BindingSpecs::Demo.new(1).get_binding bind.eval("__LINE__", "(test)").should == 1 bind.eval("#foo\n__LINE__", "(test)").should == 2 end it "starts with a __LINE__ from the third argument if passed" do bind = BindingSpecs::Demo.new(1).get_binding bind.eval("__LINE__", "(test)", 88).should == 88 bind.eval("#foo\n__LINE__", "(test)", 88).should == 89 end it "inherits __FILE__ from the enclosing scope" do obj = BindingSpecs::Demo.new(1) bind = obj.get_binding bind.eval("__FILE__").should == obj.get_file_of_binding end it "uses the __FILE__ that is passed in" do bind = BindingSpecs::Demo.new(1).get_binding bind.eval("__FILE__", "(test)").should == "(test)" end describe "with a file given" do it "does not store the filename permanently" do obj = BindingSpecs::Demo.new(1) bind = obj.get_binding bind.eval("__FILE__", "test.rb").should == "test.rb" bind.eval("__FILE__").should_not == "test.rb" end end it "with __method__ returns the method where the Binding was created" do obj = BindingSpecs::Demo.new(1) bind, meth = obj.get_binding_and_method bind.eval("__method__").should == meth end it "with __method__ returns the method where the Binding was created, ignoring #send" do obj = BindingSpecs::Demo.new(1) bind, meth = obj.get_binding_with_send_and_method bind.eval("__method__").should == meth end end