require 'spec_helper'

describe Rtml::Test::VariableScope do
  it "should raise if a variable is not defined" do
    proc { subject[:name] = "Colin" }.should raise_error(Rtml::Errors::VariableError)
  end

  it "should allow variables to be defined" do
    subject.declare_variable(:name)
    subject.variable_names.should include('name')
  end

  it "should perform TML arithmetic: plus" do
    subject.declare_variable(:counter, :type => :integer, :value => 1)
    subject.perform_operation_on(:counter, :lo => '1', :op => 'plus', :ro => '2')
    subject[:counter].should == 3
  end

  it "should perform TML arithmetic: minus" do
    subject.declare_variable(:counter, :type => :integer, :value => 1)
    subject.perform_operation_on(:counter, :lo => '1', :op => 'minus', :ro => '2')
    subject[:counter].should == -1
  end

  it "should perform TML arithmetic: format"

  it "should perform TML arithmetic: item" do
    subject.declare_variable(:which)
    subject.perform_operation_on(:which, :lo => 'one;two;three', :op => 'item', :ro => '1')
    subject[:which].should == 'two'
  end

  it "should perform TML arithmetic: number" do
    subject.declare_variable(:which)
    subject.perform_operation_on(:which, :lo => 'one;two;three', :op => 'number')
    subject[:which].should == '3'
  end

  it "should perform TML assignment" do
    subject.declare_variable(:counter, :type => :integer, :value => 1)
    subject.find_variable(:counter).perform_operation(:lo => '3')
    subject[:counter].should == 3
  end

  it "should assign a dynamic value" do
    subject.declare_variable(:counter, :type => :integer, :value => 1)
    subject.declare_variable(:start, :type => :integer, :value => 5)
    subject[:counter] = "tmlvar:start"
    subject[:counter].should == 5
  end

  it "should assign another variable" do
    # isn't this really the same as assigning a static value? because subject[:start] returns 1...
    subject.declare_variable(:counter, :type => :integer, :value => 1)
    subject.declare_variable(:start, :type => :integer, :value => 5)
    subject[:counter] = subject[:start]
    subject[:counter].should == 5
  end

  it "should assign a static value" do
    subject.declare_variable(:counter, :type => :integer)
    subject[:counter] = 5
    subject[:counter].should == 5
  end
end