diff options
| -rw-r--r-- | docs/specs/2026-07-06-radio-browser-lookup-spec.org | 2 | ||||
| -rw-r--r-- | modules/custom-buffer-file.el | 6 | ||||
| -rw-r--r-- | modules/dwim-shell-config.el | 4 | ||||
| -rw-r--r-- | modules/music-config.el | 6 | ||||
| -rw-r--r-- | modules/system-commands.el | 17 | ||||
| -rw-r--r-- | modules/system-defaults.el | 5 | ||||
| -rw-r--r-- | modules/system-lib.el | 37 | ||||
| -rw-r--r-- | tests/test-custom-buffer-file-move-buffer-and-file.el | 27 | ||||
| -rw-r--r-- | tests/test-custom-buffer-file-rename-buffer-and-file.el | 14 | ||||
| -rw-r--r-- | tests/test-system-commands-resolve-and-run.el | 45 | ||||
| -rw-r--r-- | tests/test-system-lib-confirm-destructive.el | 141 | ||||
| -rw-r--r-- | tests/test-system-lib-confirm-strong.el | 37 |
12 files changed, 256 insertions, 85 deletions
diff --git a/docs/specs/2026-07-06-radio-browser-lookup-spec.org b/docs/specs/2026-07-06-radio-browser-lookup-spec.org index c65de850..89251418 100644 --- a/docs/specs/2026-07-06-radio-browser-lookup-spec.org +++ b/docs/specs/2026-07-06-radio-browser-lookup-spec.org @@ -162,7 +162,7 @@ Add cj/music-radio-search (query -> search -> completing-read multi-select -> wr * Readiness dimensions - Data model & ownership: a station plist (uuid, name, url, codec, bitrate, tags, country, votes, clickcount) derived from the API; the .m3u file is generated and owned by Craig once written. No local cache in v1. -- Errors, empty states & failure: named user-errors — no server reachable, empty results, cancelled selection, write failure (naming the file). No silent data loss; overwrite reuses the existing cj/confirm-strong prompt from create-radio-station. +- Errors, empty states & failure: named user-errors — no server reachable, empty results, cancelled selection, write failure (naming the file). No silent data loss; overwrite reuses the existing cj/confirm-destructive prompt from create-radio-station. - Security & privacy: no credentials. The only outbound data is the search query and a User-Agent to a public API. No sensitive data logged. - Observability: the command messages the server used, the result count, and each file written. Search is one short synchronous call; if it ever feels slow, a "Searching radio-browser…" message covers it. - Performance & scale: result sets bounded by an explicit limit (default ~30). One GET per search. No scaling concern. diff --git a/modules/custom-buffer-file.el b/modules/custom-buffer-file.el index 0ca06cf9..fdcc4d2f 100644 --- a/modules/custom-buffer-file.el +++ b/modules/custom-buffer-file.el @@ -59,7 +59,7 @@ (declare-function mm-insert-part "mm-decode") (declare-function mm-destroy-parts "mm-decode") (require 'external-open) ;; for cj/xdg-open, cj/open-this-file-with -(require 'system-lib) ;; cj/confirm-strong (overwrite confirms), used below +(require 'system-lib) ;; cj/confirm-destructive (overwrite confirms), used below ;; cj/kill-buffer-and-window and cj/kill-other-window-buffer defined in undead-buffers.el (declare-function cj/kill-buffer-and-window "undead-buffers") @@ -168,7 +168,7 @@ When called interactively, prompts for confirmation if target file exists." (condition-case _ (cj/--move-buffer-and-file dir nil) (file-already-exists - (if (cj/confirm-strong (format "File %s exists; overwrite? " target)) + (if (cj/confirm-destructive (format "File %s exists; overwrite? " target)) (cj/--move-buffer-and-file dir t) (message "File not moved")))))) @@ -208,7 +208,7 @@ When called interactively, prompts for confirmation if target file exists." (condition-case err (cj/--rename-buffer-and-file new-name nil) (file-already-exists - (if (cj/confirm-strong (format "File %s exists; overwrite? " new-name)) + (if (cj/confirm-destructive (format "File %s exists; overwrite? " new-name)) (cj/--rename-buffer-and-file new-name t) (message "File not renamed"))) (error diff --git a/modules/dwim-shell-config.el b/modules/dwim-shell-config.el index 54272fd5..12908f51 100644 --- a/modules/dwim-shell-config.el +++ b/modules/dwim-shell-config.el @@ -22,7 +22,7 @@ ;;; Code: (require 'cl-lib) -(require 'system-lib) ;; cj/confirm-strong (permanent file destruction confirm) +(require 'system-lib) ;; cj/confirm-destructive (permanent file destruction confirm) (require 'external-open) ;; cj/xdg-open, called to open conversion output files ;; Function declarations (lazily-loaded packages and sibling modules). @@ -765,7 +765,7 @@ switching off the .7z format to gpg-wrapped tar." Uses =shred -u= so the file is unlinked after overwriting, matching the \"delete\" the command name and prompt promise." (interactive) - (when (cj/confirm-strong "This will permanently destroy files. Continue? ") + (when (cj/confirm-destructive "This will permanently destroy files. Continue? ") (dwim-shell-command-on-marked-files "Secure delete" "shred -vfzu -n 3 '<<f>>'" diff --git a/modules/music-config.el b/modules/music-config.el index 233bae72..92b04782 100644 --- a/modules/music-config.el +++ b/modules/music-config.el @@ -31,7 +31,7 @@ (require 'user-constants) (require 'keybindings) ;; provides cj/custom-keymap (require 'cj-window-toggle-lib) ;; side-window size memory (F10 toggle) -(require 'system-lib) ;; cj/confirm-strong (overwrite confirms) +(require 'system-lib) ;; cj/confirm-destructive (overwrite confirms) ;; Declare these foreign package vars special so `let'-binding them below ;; compiles as a dynamic bind, not a dead lexical local -- otherwise emms / @@ -833,7 +833,7 @@ reloaded playlist keeps its display name and cover art." (when (string-empty-p (string-trim chosen)) (user-error "Playlist name cannot be empty")) (when (and (file-exists-p full) - (not (cj/confirm-strong (format "Overwrite %s? " filename)))) + (not (cj/confirm-destructive (format "Overwrite %s? " filename)))) (user-error "Aborted saving playlist")) (make-directory dir t) (cj/music--write-playlist-file full tracks entries) @@ -875,7 +875,7 @@ clears its file association." (let ((file (cj/music--select-m3u-file "Delete playlist: "))) (if (not file) (message "Playlist deletion cancelled") - (unless (cj/confirm-strong (format "Delete playlist %s? " + (unless (cj/confirm-destructive (format "Delete playlist %s? " (file-name-nondirectory file))) (user-error "Aborted deleting playlist")) (cj/music--delete-playlist-file file) diff --git a/modules/system-commands.el b/modules/system-commands.el index edc6339d..08a1be5d 100644 --- a/modules/system-commands.el +++ b/modules/system-commands.el @@ -39,7 +39,7 @@ ;; require keeps the module loadable on its own (tests, byte-compile) rather ;; than relying on init.el's load order. (require 'host-environment) -;; `system-lib' provides `cj/confirm-strong', used at runtime by the `strong' +;; `system-lib' provides `cj/confirm-destructive', used at runtime by the `strong' ;; confirm branch of `cj/system-cmd' for irreversible actions (shutdown/reboot). (require 'system-lib) (eval-when-compile (require 'subr-x)) @@ -76,10 +76,11 @@ If CMD is deemed dangerous, ask for confirmation." (label (nth 2 resolved))) (let ((confirm (and sym (get sym 'cj/system-confirm)))) (cond - ;; Strong confirm for irreversible actions (shutdown, reboot): - ;; require an explicit "yes", so a stray RET/space can't trigger them. + ;; Strong confirm for irreversible actions (shutdown, reboot): one + ;; keystroke, but with no default, so a stray RET/space can't trigger + ;; them and type-ahead is discarded before the read. ((eq confirm 'strong) - (unless (cj/confirm-strong (format "Really run %s (%s)? " label cmdstr)) + (unless (cj/confirm-destructive (format "Really run %s (%s)? " label cmdstr)) (user-error "Aborted"))) ;; Quick (Y/n) confirm for recoverable actions (logout, suspend). (confirm @@ -96,9 +97,11 @@ If CMD is deemed dangerous, ask for confirmation." (defmacro cj/defsystem-command (name var cmdstr &optional confirm) "Define VAR with CMDSTR and interactive command NAME to run it. -CONFIRM controls the confirmation prompt: t for a quick (Y/n) prompt, -the symbol `strong' for an explicit yes-or-no-p (used for irreversible -actions like shutdown and reboot), nil for no confirmation." +CONFIRM controls the confirmation prompt: t for a quick (Y/n) prompt where +RET and space mean yes, the symbol `strong' for `cj/confirm-destructive' +\(used for irreversible actions like shutdown and reboot), nil for no +confirmation. Both are one keystroke; the difference is that `strong' has +no default, so RET and space re-prompt rather than confirming." (declare (indent defun)) `(progn (defvar ,var ,cmdstr) diff --git a/modules/system-defaults.el b/modules/system-defaults.el index 9b4652e8..d9ec1878 100644 --- a/modules/system-defaults.el +++ b/modules/system-defaults.el @@ -227,8 +227,9 @@ appears only once per session." (setq ad-redefinition-action 'accept) ;; silence warnings about advised functions getting redefined. (setq large-file-warning-threshold nil) ;; open files regardless of size (setq use-short-answers t) ;; single-key y/n for ordinary yes-or-no-p prompts - ;; (irreversible actions use `cj/confirm-strong', which - ;; forces a typed "yes" by binding this nil for that call) + ;; (irreversible actions use `cj/confirm-destructive', + ;; also one key, but it ignores RET and space so a stray + ;; keystroke re-prompts instead of confirming) (setq auto-revert-verbose nil) ;; turn off auto revert messages (setq custom-safe-themes t) ;; treat all themes as safe (stop asking) (setq server-client-instructions nil) ;; I already know what to do when done with the frame diff --git a/modules/system-lib.el b/modules/system-lib.el index 54e20b74..bde53d82 100644 --- a/modules/system-lib.el +++ b/modules/system-lib.el @@ -130,16 +130,33 @@ Callers that must have a secret layer their own error on top." (secret (plist-get (car (apply #'auth-source-search spec)) :secret))) (if (functionp secret) (funcall secret) secret))) -;; ---------------------------- Strong Confirmation ---------------------------- - -(defun cj/confirm-strong (prompt) - "Ask PROMPT, requiring a full typed \"yes\" or \"no\" answer. -For irreversible actions -- file destruction, overwrites, power-off. The -global default makes `yes-or-no-p' a single keystroke (`use-short-answers' -is t); this binds it to nil for the one call so the prompt demands the -long-form answer, keeping a stray RET or space from confirming." - (let ((use-short-answers nil)) - (yes-or-no-p prompt))) +;; -------------------------- Destructive Confirmation ------------------------- + +(defun cj/confirm-destructive (prompt) + "Ask PROMPT for an irreversible action. Return non-nil for yes. + +One keystroke, y or n. Nothing else answers: a stray RET or space +re-prompts rather than confirming, so the accidental-confirm protection +survives without the answer costing four keystrokes. + +Pending input is discarded first, and that line is load-bearing. +`read-char-choice' reads from the input queue, so without it a keystroke +typed before the prompt appeared would confirm a shutdown or a file +deletion instantly. The typed-\"yes\" form this replaced absorbed such a +key harmlessly, and dropping the guard without replacing it would have +traded a rare annoyance for a rare catastrophe. + +This used to demand a typed \"yes\", and that was a worse trade than it +looked. On 2026-07-31 one such prompt went unanswered -- a second agent +session held the selected window while the prompt waited in another frame, +so keystrokes went to a terminal instead of the minibuffer, and the session +was killed with buffers unsaved. A single keystroke does not make a prompt +reachable when focus is elsewhere; C-g is still the escape either way. What +it changes is the cost of the situation, and losing unsaved buffers is a far +bigger hazard than a mis-keyed confirm." + (discard-input) + (eq ?y (downcase (read-char-choice (concat prompt "(y or n) ") + '(?y ?Y ?n ?N))))) (defun cj/--font-lock-global-modes-excluding (current mode) "Return CURRENT `font-lock-global-modes' with MODE added to the exclusion. diff --git a/tests/test-custom-buffer-file-move-buffer-and-file.el b/tests/test-custom-buffer-file-move-buffer-and-file.el index 8331db5c..b3d78ccf 100644 --- a/tests/test-custom-buffer-file-move-buffer-and-file.el +++ b/tests/test-custom-buffer-file-move-buffer-and-file.el @@ -884,11 +884,17 @@ (with-temp-file source-file (insert "new")) (find-file source-file) - ;; Mock yes-or-no-p to capture that it was called - (cl-letf (((symbol-function 'yes-or-no-p) - (lambda (prompt) + ;; The overwrite confirm goes through `cj/confirm-destructive', which + ;; reads a single key rather than a typed yes. Mock the key read, not + ;; `yes-or-no-p' -- mocking the latter would pass whether or not the + ;; prompt happened at all. + (cl-letf (((symbol-function 'read-char-choice) + (lambda (&rest _) (setq prompted t) - t)) + ?y)) + ((symbol-function 'yes-or-no-p) + (lambda (&rest _) + (error "overwrite confirm must not demand a typed yes"))) ((symbol-function 'read-directory-name) (lambda (&rest _) target-dir))) (call-interactively #'cj/move-buffer-and-file) @@ -907,11 +913,14 @@ (with-temp-file source-file (insert "new")) (find-file source-file) - ;; Mock yes-or-no-p to capture if it was called - (cl-letf (((symbol-function 'yes-or-no-p) - (lambda (prompt) - (setq prompted t) - t)) + ;; Both prompt paths are mocked, not just the old one. Watching + ;; `yes-or-no-p' alone would make this assertion unfalsifiable now + ;; that the confirm reads a key instead: it would pass whether the + ;; prompt was correctly skipped or merely moved. + (cl-letf (((symbol-function 'read-char-choice) + (lambda (&rest _) (setq prompted t) ?y)) + ((symbol-function 'yes-or-no-p) + (lambda (&rest _) (setq prompted t) t)) ((symbol-function 'read-directory-name) (lambda (&rest _) target-dir))) (call-interactively #'cj/move-buffer-and-file) diff --git a/tests/test-custom-buffer-file-rename-buffer-and-file.el b/tests/test-custom-buffer-file-rename-buffer-and-file.el index 1eb61f1b..019fad8c 100644 --- a/tests/test-custom-buffer-file-rename-buffer-and-file.el +++ b/tests/test-custom-buffer-file-rename-buffer-and-file.el @@ -923,11 +923,17 @@ (with-temp-file new-file (insert "existing")) (find-file old-file) - ;; Mock yes-or-no-p to capture that it was called - (cl-letf (((symbol-function 'yes-or-no-p) - (lambda (prompt) + ;; The overwrite confirm goes through `cj/confirm-destructive', which + ;; reads a single key rather than a typed yes. Mock the key read, not + ;; `yes-or-no-p' -- mocking the latter would pass whether or not the + ;; prompt happened at all. + (cl-letf (((symbol-function 'read-char-choice) + (lambda (&rest _) (setq prompted t) - t)) + ?y)) + ((symbol-function 'yes-or-no-p) + (lambda (&rest _) + (error "overwrite confirm must not demand a typed yes"))) ((symbol-function 'read-string) (lambda (&rest _) "new.txt"))) (call-interactively #'cj/rename-buffer-and-file) diff --git a/tests/test-system-commands-resolve-and-run.el b/tests/test-system-commands-resolve-and-run.el index 7e5146b1..3dae8cda 100644 --- a/tests/test-system-commands-resolve-and-run.el +++ b/tests/test-system-commands-resolve-and-run.el @@ -85,26 +85,34 @@ (put 'test-sc-confirm-cmd 'cj/system-confirm nil))) (ert-deftest test-system-cmd-strong-confirm-decline-aborts () - "Boundary: a strong-confirm var uses yes-or-no-p; declining aborts and -does not run the command." + "Boundary: a strong-confirm var asks a single y/n; declining aborts and +does not run the command. + +The strong path used to demand a typed \"yes\", and this test used to assert +that by erroring if `read-char-choice' was called at all. It now asserts the +opposite, because a long-form prompt is only as safe as it is answerable: on +2026-07-31 one became unanswerable when a second agent session held the +selected window, and the Emacs session had to be killed with buffers unsaved. +What survives the change is the part that mattered -- the prompt still has no +default, so RET and space re-prompt rather than confirming a shutdown." (defvar test-sc-strong-cmd "test-strong-cmd") (put 'test-sc-strong-cmd 'cj/system-confirm 'strong) (unwind-protect - (cl-letf (((symbol-function 'yes-or-no-p) (lambda (&rest _) nil)) - ((symbol-function 'read-char-choice) - (lambda (&rest _) (error "strong confirm must not use read-char-choice"))) + (cl-letf (((symbol-function 'read-char-choice) (lambda (&rest _) ?n)) + ((symbol-function 'yes-or-no-p) + (lambda (&rest _) (error "strong confirm must not demand a typed yes"))) ((symbol-function 'start-process-shell-command) (lambda (&rest _) (error "shouldn't run")))) (should-error (cj/system-cmd 'test-sc-strong-cmd) :type 'user-error)) (put 'test-sc-strong-cmd 'cj/system-confirm nil))) (ert-deftest test-system-cmd-strong-confirm-accept-runs () - "Normal: a strong-confirm var runs the command when yes-or-no-p returns t." + "Normal: a strong-confirm var runs the command on a single y." (defvar test-sc-strong-cmd-2 "echo strong") (put 'test-sc-strong-cmd-2 'cj/system-confirm 'strong) (let (cmd-line) (unwind-protect - (cl-letf (((symbol-function 'yes-or-no-p) (lambda (&rest _) t)) + (cl-letf (((symbol-function 'read-char-choice) (lambda (&rest _) ?y)) ((symbol-function 'start-process-shell-command) (lambda (_name _buf c) (setq cmd-line c) 'fake-proc)) ((symbol-function 'set-process-query-on-exit-flag) #'ignore) @@ -114,6 +122,29 @@ does not run the command." (put 'test-sc-strong-cmd-2 'cj/system-confirm nil)) (should (string-match-p "echo strong" cmd-line)))) +(ert-deftest test-system-cmd-strong-confirm-rejects-stray-keys () + "Boundary: the strong prompt offers only y and n, so a stray RET or space +cannot confirm an irreversible command. + +This is the protection the typed-\"yes\" form existed for, kept while the +answer became a single keystroke. Asserted on the accepted-character set +handed to `read-char-choice' rather than on the prompt text, because the set +is what actually decides." + (defvar test-sc-strong-cmd-3 "echo strong") + (put 'test-sc-strong-cmd-3 'cj/system-confirm 'strong) + (let (chars) + (unwind-protect + (cl-letf (((symbol-function 'read-char-choice) + (lambda (_prompt cs &rest _) (setq chars cs) ?n)) + ((symbol-function 'start-process-shell-command) + (lambda (&rest _) (error "shouldn't run")))) + (should-error (cj/system-cmd 'test-sc-strong-cmd-3) :type 'user-error)) + (put 'test-sc-strong-cmd-3 'cj/system-confirm nil)) + (should (equal (sort (copy-sequence chars) #'<) '(?N ?Y ?n ?y))) + (should-not (memq ?\r chars)) + (should-not (memq ?\n chars)) + (should-not (memq ?\s chars)))) + ;;; cj/system-cmd--emacs-service-available-p (ert-deftest test-system-cmd-service-available-true-on-zero-exit () diff --git a/tests/test-system-lib-confirm-destructive.el b/tests/test-system-lib-confirm-destructive.el new file mode 100644 index 00000000..4fc96e21 --- /dev/null +++ b/tests/test-system-lib-confirm-destructive.el @@ -0,0 +1,141 @@ +;;; test-system-lib-confirm-destructive.el --- Tests for cj/confirm-destructive -*- lexical-binding: t; -*- + +;;; Commentary: +;; ERT tests for `cj/confirm-destructive', the confirmation used for +;; irreversible actions: file destruction, overwrites, power-off. +;; +;; The contract has two halves, and they pull against each other: +;; +;; 1. One keystroke. This replaced a typed-"yes" prompt on 2026-07-31, after +;; one became unanswerable -- a second agent session held the selected +;; window while the prompt waited in another frame, so keystrokes went to a +;; terminal and the Emacs session had to be killed with buffers unsaved. A +;; long-form prompt is only as safe as it is answerable. +;; +;; 2. No default. Only y and n answer. A stray RET or space re-prompts +;; instead of confirming, which is the accidental-confirm protection the +;; long form existed for, and it survives the change. + +;;; Code: + +(require 'ert) +(require 'cl-lib) +(require 'system-lib) + +;;; Normal Cases + +(ert-deftest test-system-lib-confirm-destructive-returns-t-on-y () + "Normal: a y answer confirms." + (cl-letf (((symbol-function 'read-char-choice) (lambda (&rest _) ?y))) + (should (eq (cj/confirm-destructive "Really? ") t)))) + +(ert-deftest test-system-lib-confirm-destructive-returns-nil-on-n () + "Normal: an n answer declines." + (cl-letf (((symbol-function 'read-char-choice) (lambda (&rest _) ?n))) + (should (eq (cj/confirm-destructive "Really? ") nil)))) + +;;; Boundary Cases + +(ert-deftest test-system-lib-confirm-destructive-accepts-uppercase () + "Boundary: a capital Y confirms and a capital N declines, so the answer +does not depend on the shift key or caps lock." + (cl-letf (((symbol-function 'read-char-choice) (lambda (&rest _) ?Y))) + (should (eq (cj/confirm-destructive "Really? ") t))) + (cl-letf (((symbol-function 'read-char-choice) (lambda (&rest _) ?N))) + (should (eq (cj/confirm-destructive "Really? ") nil)))) + +(ert-deftest test-system-lib-confirm-destructive-offers-only-y-and-n () + "Boundary: RET, space and every other key are refused. + +This is the protection that justified the old typed-\"yes\" form, kept now +that the answer is a single keystroke. Asserted on the character set handed +to `read-char-choice', which is what actually decides, rather than on the +prompt text, which only describes." + (let (chars) + (cl-letf (((symbol-function 'read-char-choice) + (lambda (_prompt cs &rest _) (setq chars cs) ?n))) + (cj/confirm-destructive "Really? ")) + (should (equal (sort (copy-sequence chars) #'<) '(?N ?Y ?n ?y))) + (should-not (memq ?\r chars)) + (should-not (memq ?\n chars)) + (should-not (memq ?\s chars)))) + +(ert-deftest test-system-lib-confirm-destructive-is-single-keystroke () + "Boundary: it never routes through `yes-or-no-p'. + +The regression this file guards. Binding `use-short-answers' to nil for the +call, which is what the old implementation did, is exactly the shape that +produced an unanswerable prompt." + (cl-letf (((symbol-function 'read-char-choice) (lambda (&rest _) ?y)) + ((symbol-function 'yes-or-no-p) + (lambda (&rest _) (error "must not demand a typed yes")))) + (should (eq (cj/confirm-destructive "Really? ") t)))) + +(ert-deftest test-system-lib-confirm-destructive-ignores-short-answer-setting () + "Boundary: the answer is one key whether or not `use-short-answers' is set. +The global default is t, but nothing about this prompt should depend on it." + (dolist (setting '(t nil)) + (let ((use-short-answers setting)) + (cl-letf (((symbol-function 'read-char-choice) (lambda (&rest _) ?y)) + ((symbol-function 'yes-or-no-p) + (lambda (&rest _) (error "must not demand a typed yes")))) + (should (eq (cj/confirm-destructive "Really? ") t)))))) + +(ert-deftest test-system-lib-confirm-destructive-discards-type-ahead () + "Boundary: pending input is discarded before the key is read. + +The regression that made this necessary. `read-char-choice' reads the input +queue, so a key typed before the prompt appeared would answer it: a queued y +would confirm a shutdown or a file deletion instantly. The typed-\"yes\" +form absorbed such a key harmlessly, so dropping it without this guard would +have traded a rare annoyance for a rare catastrophe. + +Asserted on ordering, since that is the whole property: the discard has to +happen before the read, not merely somewhere in the function." + (let ((events '())) + (cl-letf (((symbol-function 'discard-input) + (lambda (&rest _) (push 'discard events) nil)) + ((symbol-function 'read-char-choice) + (lambda (&rest _) (push 'read events) ?y))) + (should (eq (cj/confirm-destructive "Really? ") t))) + (should (equal (nreverse events) '(discard read))))) + +;;; Error Cases + +(ert-deftest test-system-lib-confirm-destructive-declines-on-other-char () + "Error: anything that is not y or n declines rather than confirming. + +`read-char-choice' normally loops until it gets a listed character, but it +can return outside the set -- `read-char-from-minibuffer' yields RET when the +minibuffer result is empty. On an irreversible action the safe reading of an +unexpected answer is no." + (dolist (ch (list ?\r ?\n ?\s ?q ?\C-m)) + (cl-letf (((symbol-function 'read-char-choice) (lambda (&rest _) ch))) + (should-not (cj/confirm-destructive "Really? "))))) + +(ert-deftest test-system-lib-confirm-destructive-propagates-quit () + "Error: C-g aborts the caller rather than reading as a confirmation. +Swallowing the quit here would turn an abort into a yes on an irreversible +action." + (cl-letf (((symbol-function 'read-char-choice) + (lambda (&rest _) (signal 'quit nil)))) + ;; `should-error' cannot express this: quit is not an error, so ERT lets + ;; it through and reports the test as QUIT rather than passed. Catching + ;; it here is what makes the assertion a real pass or fail. + (should (eq 'quit (condition-case nil + (progn (cj/confirm-destructive "Really? ") + 'returned-normally) + (quit 'quit)))))) + +(ert-deftest test-system-lib-confirm-destructive-prompt-shows-choices () + "Error: the prompt names the keys that answer, so an unfamiliar prompt is +not a guessing game." + (let (prompt) + (cl-letf (((symbol-function 'read-char-choice) + (lambda (p &rest _) (setq prompt p) ?n))) + (cj/confirm-destructive "Delete everything? ")) + (should (string-match-p "Delete everything\\?" prompt)) + (should (string-match-p "y or n" prompt)))) + +(provide 'test-system-lib-confirm-destructive) +;;; test-system-lib-confirm-destructive.el ends here diff --git a/tests/test-system-lib-confirm-strong.el b/tests/test-system-lib-confirm-strong.el deleted file mode 100644 index 26c00822..00000000 --- a/tests/test-system-lib-confirm-strong.el +++ /dev/null @@ -1,37 +0,0 @@ -;;; test-system-lib-confirm-strong.el --- Tests for cj/confirm-strong -*- lexical-binding: t; -*- - -;;; Commentary: -;; ERT tests for `cj/confirm-strong', the typed-"yes" confirmation used for -;; irreversible actions. The behavior under test is the long-form guarantee: -;; the prompt demands a typed yes/no even when the global single-key default -;; (`use-short-answers') is in effect. - -;;; Code: - -(require 'ert) -(require 'cl-lib) -(require 'system-lib) - -(ert-deftest test-system-lib-confirm-strong-returns-t-on-yes () - "Normal: passes a t answer through from `yes-or-no-p'." - (cl-letf (((symbol-function 'yes-or-no-p) (lambda (&rest _) t))) - (should (eq (cj/confirm-strong "Really? ") t)))) - -(ert-deftest test-system-lib-confirm-strong-returns-nil-on-no () - "Normal: passes a nil answer through from `yes-or-no-p'." - (cl-letf (((symbol-function 'yes-or-no-p) (lambda (&rest _) nil))) - (should (eq (cj/confirm-strong "Really? ") nil)))) - -(ert-deftest test-system-lib-confirm-strong-forces-long-form () - "Boundary: binds `use-short-answers' to nil for the call even when it is -globally t, so the irreversible prompt requires a typed yes/no regardless of -the single-key default." - (let ((use-short-answers t) - (seen 'unset)) - (cl-letf (((symbol-function 'yes-or-no-p) - (lambda (&rest _) (setq seen use-short-answers) t))) - (cj/confirm-strong "Really? ") - (should (eq seen nil))))) - -(provide 'test-system-lib-confirm-strong) -;;; test-system-lib-confirm-strong.el ends here |