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Test run-command #825

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Merged
jackfirth merged 1 commit into from
Jul 14, 2026
Merged

Test run-command #825

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23 changes: 23 additions & 0 deletions private/run-command.rkt
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Original file line number Diff line number Diff line change
Expand Up @@ -49,3 +49,26 @@
"command" (string-join (cons cmd-name stringified-args) " ")
"stderr" stderr-string))
stdout-string)


(module+ test
(require rackunit)

;; Use the running Racket executable so these tests need no platform-specific commands on $PATH.
(define racket-exe
(path->string (find-executable-path (find-system-path 'exec-file))))

(test-case "run-command returns the subprocess's stdout"
(check-equal? (run-command racket-exe "-e" "(display \"hello\")") "hello"))

(test-case "run-command raises when the executable isn't in $PATH"
(check-exn #rx"couldn't find executable in \\$PATH"
(λ () (run-command "resyntax-nonexistent-executable-a1b2c3"))))

(test-case "run-command raises when the command exits with a nonzero code"
(check-exn #rx"command exited with a nonzero exit code"
(λ () (run-command racket-exe "-e" "(exit 1)"))))

(test-case "run-command raises when the command writes to stderr"
(check-exn #rx"command exited successfully, but wrote to stderr"
(λ () (run-command racket-exe "-e" "(eprintf \"oops\")")))))
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