Wrap a DSL around PHPUnit to reduce boilerplate

DRAFT

Use strategy pattern to inject new keywords into the DSL parser class. Each keyword is responsible for its own evaluation.

Load new keywords this way using a (load lib.php) statement.

Basic syntax and semantics:

Losely inspired by Emacs Lisp.

• First item in list is function, rest is arguments
• Application is using space, as in (+ 1 2), or (f x y)
• Strings use quotation "
• Numbers are integers and float
• Line-comments use ;

Primitive keywords needed:

• progn to execute a list of expressions or statements
• load for loading keywords defined as PHP classes
• setq to set variables
• ‘concat’ to concatenate strings

Example with custom keywords:

return new CustomOp(
    'echo',
    function($that, $sexpr) {
        $next = $sexpr->shift();
        if ($next instanceof Str) {
            echo $next->s;
        } else {
            $s = $this->eval($next);
            echo $s->s;
        }
    }
);

Use with load:

(load "echo")   ; This will load and inject the new keyword
(defun say-hello (a b) (echo (concat a b)))
(say-hello "hello" "world!")

Example:

(test-class remotecontrol_handle
  (test-method add_participants
      (set (participant (list (map ("firstname" "John")))))
      (set (surveyId 1))
      (set (sessionKey "abc123"))
      (arguments sessionKey surveyId participant 'false)
      (result (list (map ("firstname" "John")))))
)

<?php
return new KeyWord(function($sexpr) {
    // eval
});