rubyx/test/parser/test_while.rb

require_relative "helper"

class TestWhile < MiniTest::Test
  # include the magic (setup and parse -> test method translation), see there
  include ParserHelper

  def test_while
    @string_input = <<HERE
while(1) do
  tmp = a
  puts(b)
end
HERE
    @string_input.chop!
    @parse_output = {:while=>"while", :while_cond=>{:integer=>"1"}, :do=>"do", :body=>{:expressions=>[{:l=>{:name=>"tmp"}, :o=>"= ", :r=>{:name=>"a"}}, {:call_site=>{:name=>"puts"}, :argument_list=>[{:argument=>{:name=>"b"}}]}], :end=>"end"}}
    @transform_output = Ast::WhileExpression.new(Ast::IntegerExpression.new(1), [Ast::OperatorExpression.new("=", Ast::NameExpression.new("tmp"),Ast::NameExpression.new("a")), Ast::CallSiteExpression.new(:puts, [Ast::NameExpression.new("b")] ,Ast::NameExpression.new("self"))] )
    @parser = @parser.while_do
  end

  def test_while_method
    @string_input = <<HERE
while(1) do
  tmp = String.new()
  tmp.puts(i)
end
HERE
    @string_input.chop!
    @parse_output = {:while=>"while", :while_cond=>{:integer=>"1"}, :do=>"do", :body=>{:expressions=>[{:l=>{:name=>"tmp"}, :o=>"= ", :r=>{:receiver=>{:module_name=>"String"}, :call_site=>{:name=>"new"}, :argument_list=>[]}}, {:receiver=>{:name=>"tmp"}, :call_site=>{:name=>"puts"}, :argument_list=>[{:argument=>{:name=>"i"}}]}], :end=>"end"}}
    @transform_output = Ast::WhileExpression.new(Ast::IntegerExpression.new(1), [Ast::OperatorExpression.new("=", Ast::NameExpression.new("tmp"),Ast::CallSiteExpression.new(:new, [] ,Ast::ModuleName.new("String"))), Ast::CallSiteExpression.new(:puts, [Ast::NameExpression.new("i")] ,Ast::NameExpression.new("tmp"))] )
    @parser = @parser.while_do
  end

  def test_big_while
    @string_input = <<HERE
while( n > 1) do
  tmp = a
  a = b
  b = tmp + b
  puts(b)
  n = n - 1
end
HERE
    @string_input.chop!
    @parse_output = {:while=>"while", :while_cond=>{:l=>{:name=>"n"}, :o=>"> ", :r=>{:integer=>"1"}}, :do=>"do", :body=>{:expressions=>[{:l=>{:name=>"tmp"}, :o=>"= ", :r=>{:name=>"a"}}, {:l=>{:name=>"a"}, :o=>"= ", :r=>{:name=>"b"}}, {:l=>{:name=>"b"}, :o=>"= ", :r=>{:l=>{:name=>"tmp"}, :o=>"+ ", :r=>{:name=>"b"}}}, {:call_site=>{:name=>"puts"}, :argument_list=>[{:argument=>{:name=>"b"}}]}, {:l=>{:name=>"n"}, :o=>"= ", :r=>{:l=>{:name=>"n"}, :o=>"- ", :r=>{:integer=>"1"}}}], :end=>"end"}}
    @transform_output = Ast::WhileExpression.new(Ast::OperatorExpression.new(">", Ast::NameExpression.new("n"),Ast::IntegerExpression.new(1)), [Ast::OperatorExpression.new("=", Ast::NameExpression.new("tmp"),Ast::NameExpression.new("a")), Ast::OperatorExpression.new("=", Ast::NameExpression.new("a"),Ast::NameExpression.new("b")), Ast::OperatorExpression.new("=", Ast::NameExpression.new("b"),Ast::OperatorExpression.new("+", Ast::NameExpression.new("tmp"),Ast::NameExpression.new("b"))), Ast::CallSiteExpression.new(:puts, [Ast::NameExpression.new("b")] ,Ast::NameExpression.new("self")), Ast::OperatorExpression.new("=", Ast::NameExpression.new("n"),Ast::OperatorExpression.new("-", Ast::NameExpression.new("n"),Ast::IntegerExpression.new(1)))] )
    @parser = @parser.while_do
  end
end