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(include "../scsh-process.scm")
(import scsh-process)

(use test posix)

(test-group "Procedural interface"
  (test "Fork/pipe \"hello world\" example from SCSH reference manual"
        "Hello, world."
        (begin (fork/pipe
                (lambda ()
                  (with-output-to-port (open-output-file* 1)
                    (lambda () (display "Hello, world.\n") (exit 0)))))
               (read-line (open-input-file* 0))))
  (test "run/string* returns a string output in a subprocess"
        "This is a test"
        (run/string* (lambda () (display "This is a test") (exit 0)))))

(test-group "Macro (EPF) interface"
 (delete-file* "outfile")               ; Leftovers
 (let ((outfile "outfile"))
   (test "Subprocess writing to a file"
         "hi, there\n"
         (begin (run (echo "hi, there") (> ,outfile))
                (read-all "outfile"))))
 
 (delete-file* "outfile")
 (let ((echo-command 'echo))
   (test "Subprocess piped to another process, writing to a file"
         "1235\n"
         (begin (run (pipe (,echo-command "1234" + 1) ("bc")) (> outfile))
                (read-all "outfile"))))
 (delete-file* "outfile")

 (test "Simple run/string"
       "hi, there\n"
       (run/string (echo "hi, there")))

 (test "Simple run/sexp"
       '("hi, there")
       (run/sexp (echo "(\"hi, there\")")))

 (test "Simple run/sexps"
       '(("hi, there") (a b c))
       (run/sexps (echo "(\"hi, there\") (a b c)")))

 (test "Simple run/port"
       '(a b c)
       (read (run/port (echo "(a b c)"))))

 (test "Nested output redirection with pipe+"
       "foo\n"
       (run/string (pipe+ ((1 0))
                          (pipe+ ((2 0)) (sh -c "echo foo >&2") (cat))
                          (cat))))

 (test "&& runs for all true values"
       (list #t "bar\n")
       (list (&& (epf (echo "foo") (> outfile))
                 (true)
                 (epf (echo "bar") (> outfile)))
             (read-all "outfile")))
 (delete-file* "outfile")

 (test "&& stops at first false value and returns false"
       (list #f "foo\n")
       (list (&& (epf (echo "foo") (> outfile))
                 (false)
                 (epf (echo "bar") (> outfile)))
             (read-all "outfile")))
 (delete-file* "outfile")

 (test "|| stops at first true value and returns true"
       (list #t "foo\n")
       (list (|| (epf (echo "foo") (> outfile))
                 (true)
                 (epf (echo "bar") (> outfile)))
         (read-all "outfile")))
 (delete-file* "outfile")

 (test "|| continues after first false value and returns true"
       (list #t "bar\n")
       (list (|| (false)
                 (epf (echo "bar") (> outfile)))
             (read-all "outfile")))
 (delete-file* "outfile")

 (test "|| continues beyond all false values and returns false"
       #f
       (|| (false) (epf (sh -c "echo hi && false") (- 1)))))

(test-exit)