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Contents
#encoding: utf-8
require File.join(File.dirname(__FILE__), "../../spec_helper")
include Nudge
describe ExecEqualQInstruction do
it_should_behave_like "every Nudge Instruction"
before(:each) do
@context = Interpreter.new
@i1 = ExecEqualQInstruction.new(@context)
end
it "should check that there are enough parameters" do
thing1 = ValuePoint.new("code", "block {ref x}")
@context.stacks[:exec].push thing1
@context.stacks[:exec].push thing1
@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 push the correct result to the :bool stack" do
thing1 = ValuePoint.new("code", "ref x")
thing2 = ValuePoint.new("code", "block {ref x}")
@context.stacks[:exec].push thing1
@context.stacks[:exec].push thing1
@i1.go
@context.stacks[:bool].peek.value.should == true
@context.stacks[:exec].push thing1
@context.stacks[:exec].push thing2
@i1.go
@context.stacks[:bool].peek.value.should == false
end
it "should not depend on the values, but the tidied program blueprints of the :code items" do
thing1 = NudgeProgram.new("block { value «int» ref a }\n«int» 9182").linked_code
thing2 = NudgeProgram.new("block {\nvalue «int»\tref \na }\n«int» 9182").linked_code
@context.stacks[:exec].push thing1
@context.stacks[:exec].push thing2
@i1.go
@context.stacks[:bool].peek.value.should == true
end
end
Version data entries
14 entries across 14 versions & 1 rubygems