# -*- Tcl -*-
package require nx
package require nx::test

nx::Test case method-params-0 {
  nsf::proc p0 {} {return 1}
  nsf::proc p1 {-x} {return [list [info exists x]]}

  ? {p0} 1
  ;# the following error msg comes from Tcl
  ? {p0 -x} {wrong # args: should be "p0"}

  ? {p1} 0
  ? {p1 -x} {value for parameter '-x' expected}
  ? {p1 -x 1} 1
  ? {p1 -x 1 2} {invalid argument '2', maybe too many arguments; should be "p1 ?-x value?"}
  ? {p1 -x 1 -y} {invalid non-positional argument '-y', valid are : -x;
 should be "p1 ?-x value?"}
  ? {p1 a} {invalid argument 'a', maybe too many arguments; should be "p1 ?-x value?"}
  ? {p1 a -x} {invalid argument 'a', maybe too many arguments; should be "p1 ?-x value?"}

  ? {p1 --} 0
  ? {p1 -y} {invalid non-positional argument '-y', valid are : -x;
 should be "p1 ?-x value?"}
  ? {p1 -y --} {invalid non-positional argument '-y', valid are : -x;
 should be "p1 ?-x value?"}

  #
  # should we really allow numeric nonpos arg names?
  #
  ? {nsf::proc p2 {1 -2 -3} {return [list ${1} [info exists 2] [info exists 3]]}} ""
  ? {p2 -4 -2 -3 -3 -2} "-4 1 1" ;# var 2 has value "-3", var 3 has value "-2"
  ? {p2 -4 -3 + -2 -1} "-4 1 1" ;# var 2 has value "-2", var 3 has value "+"

  ? {nsf::proc p3 {1 -2 -3 4} {return [list ${1} [info exists 2] [info exists 3] ${4}]}} ""
  ? {p3 -4 -3 -2 -1} "-4 0 1 -1" ;# var 1 has value "-4", var 4 has value "-1"
}



nx::Test case noleadingdash {

  nsf::proc p2a {-x args} {return [list [info exists x] $args]}
  nsf::proc p2b {-x args:noleadingdash} {return [list [info exists x] $args]}
  nsf::proc p2c {-x args:noleadingdash} {return [list [info exists x] $args]}

  ? {p2a -x -y} {1 {}} ;# "-y" is the value of "x"
  ? {p2b -x -y} {1 {}} ;# "-y" is the value of "x"
  ? {p2c -x -y} {1 {}} ;# "-y" is the value of "x"; TODO: noleadindash currently only for posargs

  ? {p2a -x 1 -y} {1 -y}
  ? {p2b -x 1 -y} {invalid non-positional argument '-y', valid are : -x;
 should be "p2b ?-x value? ?arg ...?"}
  ? {p2c -x 1 -y} {invalid non-positional argument '-y', valid are : -x;
 should be "p2c ?-x value? ?arg ...?"}

  nsf::proc p3a {a -x -y b:noleadingdash -z} {return [list $a [info exists x] [info exists y] $b]}

  ? {p3a 100 -x 1 -y 1 200} {100 1 1 200}
  ? {p3a 100 -xx 1 -y 1 200} {invalid non-positional argument '-xx', valid are : -x, -y;
 should be "p3a a ?-x value? ?-y value? b ?-z value?"}  
}

nx::Test case unknown-handler {

  Class create C {
    :public method p1 {-x} {return [list [info exists x]]}
    :create c1
  }
  ? {c1 p1 -x 1 -y} {invalid non-positional argument '-y', valid are : -x;
 should be "::c1 p1 ?-x value?"}

  proc ::nsf::argument::unknown {method arg args} {
    puts stderr "??? unknown nonpos-arg $arg in $method obj <$args>\n[info frame -1]\n"
    return ""
  }

  ? {c1 p1 -x 1 -y} {invalid non-positional argument '-y', valid are : -x;
 should be "::c1 p1 ?-x value?"}

  if {0} {
    proc ::nsf::argument::unknown {method arg args} {
      # nasty handler redefines method
      puts stderr "??? REDEFINE ::nsf::argument::unknown <$args> [info frame -1]"
      C public method p1 {-y} {return [list [info exists y]]}
      return ""
    }
    
    ? {c1 p1 -x 1 -y} {invalid non-positional argument '-y', valid are : -x;
 should be "::c1 p1 ?-x value?"}
  }
}