require_relative "helper"

class TestFunctionDefinition < MiniTest::Test
  # include the magic (setup and parse -> test method translation), see there
  include ParserHelper
  
  def test_simplest_function
    @string_input    = <<HERE
def foo(x) 
  5
end
HERE
    @parse_output = {:function_definition=>{:name=>"foo"}, 
    :parmeter_list=>[{:parmeter=>{:name=>"x"}}], :expressions=>[{:integer=>"5"}], :end=>"end"}
    @transform_output = Ast::FunctionExpression.new('foo', 
                [Ast::NameExpression.new('x')], 
                [Ast::IntegerExpression.new(5)])
    @parser = @parser.function_definition
  end

  def test_function_assignment
    @string_input    = <<HERE
def foo(x) 
 abba = 5 
end
HERE
    @parse_output = {:function_definition=>{:name=>"foo"}, 
    :parmeter_list=>[{:parmeter=>{:name=>"x"}}], 
    :expressions=>[{:l=>{:name=>"abba"}, :o=>"= ", :r=>{:integer=>"5"}}], :end=>"end"}
    @transform_output = Ast::FunctionExpression.new(:foo, [Ast::NameExpression.new("x")] , [Ast::OperatorExpression.new("=", Ast::NameExpression.new("abba"),Ast::IntegerExpression.new(5))] )
    @parser = @parser.function_definition
  end

  def ttest_function_while
    @string_input    = <<HERE
def fibonaccit(n)
  a = 0 
  b = 1
  while n > 1 do
    tmp = a
    a = b
    b = tmp + b
    puts b
    n = n - 1
  end
end
HERE
    @parse_output = { :function_definition => { :name => "foo" } , 
                  :parmeter_list => [{ :parmeter => { :name => "x" } }], 
                  :expressions => [ { :asignee => { :name => "abba" }, :asigned => { :integer => "5" } } ]
                }
    @transform_output = nil
    @parser = @parser.function_definition
  end    
end