#encoding: utf-8 require File.join(File.dirname(__FILE__), "../../spec_helper") include Nudge describe CodeFromIntInstruction do it_should_behave_like "every Nudge Instruction" before(:each) do @context = Interpreter.new @i1 = CodeFromIntInstruction.new(@context) @context.clear_stacks end it "should check that there are enough parameters" do @context.push(:int, "99") @i1.preconditions?.should == true end it "should raise an error if the preconditions aren't met" do @context.clear_stacks # there are no params at all lambda{@i1.preconditions?}.should raise_error(Instruction::NotEnoughStackItems) end it "should successfully run #go only if all preconditions are met" do @context.push(:int, "-91") @i1.should_receive(:cleanup) @i1.go end it "should create and push the new (expected) value to the right place" do @context.push(:int, "-718") @i1.go @context.depth(:code).should == 1 @context.peek_value(:code).should == "value «int»\n«int» -718" end end