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Contents
#encoding: utf-8
require File.join(File.dirname(__FILE__), "../../spec_helper")
include Nudge
describe "FloatEqualQInstruction" do
it_should_behave_like "every Nudge Instruction"
before(:each) do
@context = Interpreter.new
@i1 = FloatEqualQInstruction.new(@context)
@float1 = ValuePoint.new("float", 1.0)
@float2 = ValuePoint.new("float", 2.0)
end
it "should check that there are enough parameters" do
6.times {@context.stacks[:float].push(@float1)}
@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
5.times {@context.stacks[:float].push(@float1)}
@i1.should_receive(:cleanup)
@i1.go
end
it "should pop all the arguments" do
@context.clear_stacks
5.times {@context.stacks[:float].push(@float1)}
@i1.stub!(:cleanup) # and do nothing
@i1.go
@context.stacks[:float].depth.should == 3
end
it "should push the result" do
@context.clear_stacks
@context.stacks[:float].push(@float1)
@context.stacks[:float].push(@float1)
@context.stacks[:float].push(@float1)
@context.stacks[:float].push(@float2)
@i1.go
@context.stacks[:bool].peek.value.should == false
@i1.go
@context.stacks[:bool].peek.value.should == true
end
end
Version data entries
14 entries across 14 versions & 1 rubygems