+(define (read-file file)
+ (call-with-input-file file
+ (lambda (p)
+ (let loop ((next (read-char p))
+ (result ""))
+ (if (eof-object? next)
+ result
+ (loop (read-char p) (string-append result (string next))))))))
+
+(define (test-prog prog output)
+ (compile-to-binary prog "/tmp/test-prog")
+ (system "/tmp/test-prog > /tmp/test-output.txt")
+ (let ((str (read-file "/tmp/test-output.txt")))
+ (test (substring str 0 (- (string-length str) 1))
+ output)))
+