; Tcl-on-SX eval tests
(define tcl-eval-pass 0)
(define tcl-eval-fail 0)
(define tcl-eval-failures (list))

(define
  tcl-eval-assert
  (fn
    (label expected actual)
    (if
      (equal? expected actual)
      (set! tcl-eval-pass (+ tcl-eval-pass 1))
      (begin
        (set! tcl-eval-fail (+ tcl-eval-fail 1))
        (append!
          tcl-eval-failures
          (str label ": expected=" (str expected) " got=" (str actual)))))))

(define
  tcl-run-eval-tests
  (fn
    ()
    (set! tcl-eval-pass 0)
    (set! tcl-eval-fail 0)
    (set! tcl-eval-failures (list))
    (define interp (fn () (make-default-tcl-interp)))
    (define run (fn (src) (tcl-eval-string (interp) src)))
    (tcl-eval-assert "set-result" "hello" (get (run "set x hello") :result))
    (tcl-eval-assert
      "set-stored"
      "hello"
      (tcl-var-get (run "set x hello") "x"))
    (tcl-eval-assert
      "var-sub"
      "hello"
      (tcl-var-get (run "set x hello\nset y $x") "y"))
    (tcl-eval-assert
      "puts"
      "world\n"
      (get (run "set x world\nputs $x") :output))
    (tcl-eval-assert
      "puts-nonewline"
      "hi"
      (get (run "puts -nonewline hi") :output))
    (tcl-eval-assert "incr" "6" (tcl-var-get (run "set x 5\nincr x") "x"))
    (tcl-eval-assert
      "incr-delta"
      "8"
      (tcl-var-get (run "set x 5\nincr x 3") "x"))
    (tcl-eval-assert
      "incr-neg"
      "7"
      (tcl-var-get (run "set x 10\nincr x -3") "x"))
    (tcl-eval-assert
      "append"
      "foobar"
      (tcl-var-get (run "set x foo\nappend x bar") "x"))
    (tcl-eval-assert
      "append-new"
      "hello"
      (tcl-var-get (run "append x hello") "x"))
    (tcl-eval-assert
      "cmdsub-result"
      "42"
      (get (run "set y [set x 42]") :result))
    (tcl-eval-assert
      "cmdsub-y"
      "42"
      (tcl-var-get (run "set y [set x 42]") "y"))
    (tcl-eval-assert
      "cmdsub-x"
      "42"
      (tcl-var-get (run "set y [set x 42]") "x"))
    (tcl-eval-assert
      "multi-cmd"
      "4"
      (tcl-var-get (run "set x 1\nincr x\nincr x\nincr x") "x"))
    (tcl-eval-assert "semi-x" "1" (tcl-var-get (run "set x 1; set y 2") "x"))
    (tcl-eval-assert "semi-y" "2" (tcl-var-get (run "set x 1; set y 2") "y"))
    (tcl-eval-assert
      "braced-nosub"
      "$x"
      (tcl-var-get (run "set x 42\nset y {$x}") "y"))
    (tcl-eval-assert
      "concat-word"
      "foobar"
      (tcl-var-get (run "set x foo\nset y ${x}bar") "y"))
    (tcl-eval-assert
      "set-get"
      "world"
      (get (run "set x world\nset x") :result))
    (tcl-eval-assert
      "puts-channel"
      "hello\n"
      (get (run "puts stdout hello") :output))
    (dict
      "passed"
      tcl-eval-pass
      "failed"
      tcl-eval-fail
      "failures"
      tcl-eval-failures)))