;;; TODO: really a step5 test
;;
;; Testing that (do (do)) not broken by TCO
(do (do 1 2))
;=>2

;;
;; Testing read-string, eval and slurp
(read-string "(1 2 (3 4) nil)")
;=>(1 2 (3 4) nil)

(= nil (read-string "nil"))
;=>true

(read-string "(+ 2 3)")
;=>(+ 2 3)

(read-string "\"\n\"")
;=>"\n"

(read-string "7 ;; comment")
;=>7

;;; Differing output, but make sure no fatal error
(read-string ";; comment")


(eval (read-string "(+ 2 3)"))
;=>5

(slurp "../tests/test.txt")
;=>"A line of text\n"

;;; Load the same file twice.
(slurp "../tests/test.txt")
;=>"A line of text\n"

;; Testing load-file

(load-file "../tests/inc.mal")
;=>nil
(inc1 7)
;=>8
(inc2 7)
;=>9
(inc3 9)
;=>12

;;
;; Testing atoms

(def! inc3 (fn* (a) (+ 3 a)))

(def! a (atom 2))
;=>(atom 2)

(atom? a)
;=>true

(atom? 1)
;=>false

(deref a)
;=>2

(reset! a 3)
;=>3

(deref a)
;=>3

(swap! a inc3)
;=>6

(deref a)
;=>6

(swap! a (fn* (a) a))
;=>6

(swap! a (fn* (a) (* 2 a)))
;=>12

(swap! a (fn* (a b) (* a b)) 10)
;=>120

(swap! a + 3)
;=>123

;; Testing swap!/closure interaction
(def! inc-it (fn* (a) (+ 1 a)))
(def! atm (atom 7))
(def! f (fn* () (swap! atm inc-it)))
(f)
;=>8
(f)
;=>9

;; Testing whether closures can retain atoms
(def! g (let* (atm (atom 0)) (fn* () (deref atm))))
(def! atm (atom 1))
(g)
;=>0

;>>> deferrable=True
;;
;; -------- Deferrable Functionality --------

;; Testing reading of large files
(load-file "../tests/computations.mal")
;=>nil
(sumdown 2)
;=>3
(fib 2)
;=>1

;; Testing `@` reader macro (short for `deref`)
(def! atm (atom 9))
@atm
;=>9

;;; TODO: really a step5 test
;; Testing that vector params not broken by TCO
(def! g (fn* [] 78))
(g)
;=>78
(def! g (fn* [a] (+ a 78)))
(g 3)
;=>81

;;
;; Testing that *ARGV* exists and is an empty list
(list? *ARGV*)
;=>true
*ARGV*
;=>()

;;
;; Testing that eval sets aa in root scope, and that it is found in nested scope
(let* (b 12) (do (eval (read-string "(def! aa 7)")) aa ))
;=>7

;>>> soft=True
;>>> optional=True
;;
;; -------- Optional Functionality --------

;; Testing comments in a file
(load-file "../tests/incB.mal")
;=>nil
(inc4 7)
;=>11
(inc5 7)
;=>12

;; Testing map literal across multiple lines in a file
(load-file "../tests/incC.mal")
;=>nil
mymap
;=>{"a" 1}

;; Checking that eval does not use local environments.
(def! a 1)
;=>1
(let* (a 2) (eval (read-string "a")))
;=>1

;; Non alphanumeric characters in comments in read-string
(read-string "1;!")
;=>1
(read-string "1;\"")
;=>1
(read-string "1;#")
;=>1
(read-string "1;$")
;=>1
(read-string "1;%")
;=>1
(read-string "1;'")
;=>1
(read-string "1;\\")
;=>1
(read-string "1;\\\\")
;=>1
(read-string "1;\\\\\\")
;=>1
(read-string "1;`")
;=>1
;;; Hopefully less problematic characters can be checked together
(read-string "1; &()*+,-./:;<=>?@[]^_{|}~")
;=>1