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diff --git a/t/test.lisp b/t/test.lisp
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+(asdf:load-systems :slynk :opencl :alexandria)
+
+(in-package #:ocl)
+
+;; (slynk:create-server)
+
+(defun print-platform (platform)
+  (loop :for info :in '(:platform-profile
+                        :platform-version
+                        :platform-name
+                        :platform-vendor
+                        :platform-extensions
+                        :platform-host-timer-resolution)
+        :do
+        (format t "~A: ~A~%" info (get-platform-info platform info))))
+
+(defun main (context kernel queue)
+  (let* ((a (make-array 3 :element-type 'single-float :initial-contents '(1.0 2.0 3.0)))
+         (b (make-array 3 :element-type 'single-float :initial-contents '(2.0 2.0 3.0)))
+         (c (make-array 3 :element-type 'single-float))
+         (size (* (cffi:foreign-type-size :float) 3)))
+    (with-buffer-from-array (a-buffer context '(:mem-copy-host-ptr :mem-read-only) a)
+      (with-buffer-from-array (b-buffer context '(:mem-copy-host-ptr :mem-read-only) b)
+        (with-buffer (c-buffer context :mem-write-only size)
+
+          (set-kernel-arg kernel 0 'cl-mem a-buffer)
+          (set-kernel-arg kernel 1 'cl-mem b-buffer)
+          (set-kernel-arg kernel 2 'cl-mem c-buffer)
+          (set-kernel-arg kernel 3 :unsigned-int 3)
+
+          (enqueue-nd-range-kernel queue kernel 0 3 1)
+
+          (finish queue)
+
+          (copy-buffer-to-array queue c-buffer c)
+
+          (dotimes (i 3)
+            (format t "~A~%" (aref c i))))))))
+
+(let ((platforms (get-platform-ids)))
+  (format t "~&Found ~A OpenCL platforms!~%" (length platforms))
+  (print-platform (first platforms))
+  (let ((devices (get-device-ids (first platforms) :device-type-cpu)))
+    (format t "Found ~A devices!~%Type: ~A~%" (length devices)
+            (get-device-info (first devices) :device-type))
+    (with-context (context devices :platform (first platforms))
+      (with-program-from-source (program context (alexandria:read-file-into-string "test.cl"))
+        (build-program program (first devices))
+        (with-command-queue (queue context (first devices))
+          (with-kernel (kernel program "vecAdd")
+            (main context kernel queue)))))))