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;;; coq-tests.el --- integration tests -*- lexical-binding: t; -*-
;;; Commentary:
;;
;;; Eval this to run the tests interactively <C-x C-e>
;;
;; (call-interactively #'ert-run-tests-interactively)
(setq debug-on-error t) ; open the debugger on error -- may be commented-out
; (require 'ert-async)
;(setq ert-async-timeout 2)
;;; Code:
; Exemple de code Lisp qui lance des commandes au prouveur en arrière-plan
; (defun has-error ()
; "True if error in Proof"
; (eq 'error proof-shell-last-output-kind))
;
; (defun test-process-invisible-split ()
; (proof-shell-invisible-command "split."
; 'waitforit
; #'proof-done-invisible
; 'no-error-display 'no-response-display 'no-goals-display))
;
; (defun test-process-invisible-tactics-then-reset-and-insert ()
; (interactive)
; (let ((reset-cmd ; store backtracking info before proof search
; (format "Backtrack %s %s %s . "
; (int-to-string coq-last-but-one-statenum)
; (int-to-string coq-last-but-one-proofnum)
; 0)))
; ;; Toy example of proof search
; (while (not (has-error))
; (message "Trying split.")
; (test-process-invisible-split))
; ;; Reset to the previous state
; (proof-shell-invisible-command reset-cmd 'waitforit #'proof-done-invisible)
; ;; Insert (and re-process) the found script
; (proof-insert-sendback-command "split.\nsplit.\nsplit.\nQed.")))
;
; (test-process-invisible-tactics-then-reset-and-insert)
(defconst coq-test-file-prefix "coq_test_")
(defun coq-test-init ()
"Ensure `coq' is loaded."
(unless (featurep 'coq)
(add-to-list 'load-path
(locate-dominating-file buffer-file-name "proof-general.el"))
(load "proof-general")
(proofgeneral "coq")))
(defun coq-test-exit ()
"Exit the Coq process."
(proof-shell-exit t))
;; AVOID THE FOLLOWING ERROR:
;; Starting: -emacs
;; Debugger entered--Lisp error: (wrong-type-argument stringp nil)
;; file-name-directory(nil)
;; scomint-exec-1("coq" #<buffer *coq*> nil ("-emacs"))
;; scomint-exec(#<buffer *coq*> "coq" nil nil ("-emacs"))
;; scomint-make-in-buffer("coq" nil nil nil "-emacs")
;; apply(scomint-make-in-buffer "coq" nil nil nil "-emacs")
;; scomint-make("coq" nil nil "-emacs")
;; apply(scomint-make ("coq" nil nil "-emacs"))
;; proof-shell-start()
;; proof-shell-ready-prover()
(defmacro coq-test-on-file (&rest body)
"Eval BODY like `progn' after opening a temporary Coq file."
;; For more info: https://mullikine.github.io/posts/macro-tutorial/
`(let ((file (concat (make-temp-file coq-test-file-prefix) ".v")))
(message "Opening file %s ..." file)
(save-excursion
(let ((buffer (find-file file))
(res (progn ,@body)))
(progn (kill-buffer buffer)
(ignore-errors (delete-file file))
res)))))
; (pp (macroexpand '(coq-test-on-file (message "OK"))))
; (coq-test-on-file (message (buffer-file-name)) (message "OK") 42)
;; DEFINITION OF MOCKS, SEE `coq-mock' BELOW
;; Another solution would consist in using el-mock, mentioned in:
;; https://www.gnu.org/software/emacs/manual/html_mono/ert.html#Mocks-and-Stubs
(defun mock-proof-display-three-b (&rest rest)
(message (concat "Skipping proof-display-three-b on input: "
(pp-to-string rest)))
; Result:
nil)
;; AVOID THE FOLLOWING ERROR:
;; Hit M-x proof-layout-windows to reset layout
;; Debugger entered--Lisp error: (error "Window #<window 6 on *goals*> too small for splitting")
;; signal(error ("Window #<window 6 on *goals*> too small for splitting"))
;; error("Window %s too small for splitting" #<window 6 on *goals*>)
;; split-window(nil nil)
;; split-window-vertically()
;; proof-safe-split-window-vertically()
;; proof-select-three-b(nil #<buffer *goals*> #<buffer *response*> smart)
;; proof-display-three-b(smart)
;; proof-layout-windows()
;; proof-multiple-frames-enable()
;; proof-shell-start()
;; proof-shell-ready-prover()
(defun coq-mock (f)
(require 'pg-response) ; load the feature defining proof-display-three-b first
(cl-letf (;((symbol-function 'foo) #'mock-foo)
((symbol-function 'proof-display-three-b) #'mock-proof-display-three-b))
(funcall f)))
;; Run <C-x C-e> on:
;; (coq-mock #'main)
(defun coq-test-cmd (cmd)
(coq-test-on-file
(coq-test-init)
(proof-shell-invisible-command
cmd
'waitforit
#'proof-done-invisible
'no-error-display 'no-response-display 'no-goals-display)))
; Fixture for init and exit coq
(defun coq-init-exit (body)
(unwind-protect
(progn (coq-test-init)
(funcall body))
(coq-test-exit)))
(defun coq-test-001 ()
;; TODO: retrieve the test status, maybe by changing the function above
(coq-test-cmd (process-list)))
;; TODO: Use https://github.com/rejeep/ert-async.el
;; and/or ERT https://www.gnu.org/software/emacs/manual/html_node/ert/index.html
(ert-deftest coq-test-running ()
(coq-init-exit
(lambda ()
(coq-test-cmd "Check 0.")
(should (get-process "coq")))))
(defun coq-test-main ()
(coq-mock #'coq-test-001))
;(ignore-errors (coq-test-exit))
(coq-test-main)
(provide 'coq-tests)
;;; learn-ocaml-tests.el ends here
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