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;;; test-dev-fkeys--projectile-capture-cmd.el --- Tests for cj/--projectile-capture-cmd -*- lexical-binding: t -*-
;;; Commentary:
;; Tests for the prior-cmd capture helper used by the auto-revert advice.
;; Captures the current cached cmd at the project root into
;; `cj/--projectile-revert-state' so a later finish-hook can restore it
;; if the compile fails after the cmd was modified.
;;; Code:
(require 'ert)
(require 'cl-lib)
(add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
(require 'dev-fkeys)
;; Test stub: projectile cmd-maps as defvars so `boundp' is non-nil and
;; `let'-binding has a target. In real use, projectile defines these.
(defvar projectile-compile-cmd-map nil)
(defvar projectile-test-cmd-map nil)
(defvar projectile-run-cmd-map nil)
;;; Normal Cases
(ert-deftest test-dev-fkeys-projectile-capture-cmd-stores-prior-value ()
"Normal: captures the cached cmd at the project root into the state plist."
(let* ((cj/--projectile-revert-state nil)
(projectile-compile-cmd-map (make-hash-table :test 'equal)))
(puthash "/p/" "make build" projectile-compile-cmd-map)
(cl-letf (((symbol-function 'cj/--f4-project-root) (lambda () "/p/")))
(cj/--projectile-capture-cmd 'projectile-compile-cmd-map))
(should (equal (plist-get cj/--projectile-revert-state :map)
'projectile-compile-cmd-map))
(should (equal (plist-get cj/--projectile-revert-state :root) "/p/"))
(should (equal (plist-get cj/--projectile-revert-state :prior) "make build"))))
(ert-deftest test-dev-fkeys-projectile-capture-cmd-no-prior-stores-nil ()
"Normal: when no cmd is cached, captures :prior nil — distinct from
\"didn't capture at all\" because :map and :root are still set."
(let* ((cj/--projectile-revert-state nil)
(projectile-test-cmd-map (make-hash-table :test 'equal)))
(cl-letf (((symbol-function 'cj/--f4-project-root) (lambda () "/p/")))
(cj/--projectile-capture-cmd 'projectile-test-cmd-map))
(should (eq (plist-get cj/--projectile-revert-state :map)
'projectile-test-cmd-map))
(should (null (plist-get cj/--projectile-revert-state :prior)))))
;;; Boundary Cases
(ert-deftest test-dev-fkeys-projectile-capture-cmd-nil-root-leaves-state-nil ()
"Boundary: when no project root resolves, state stays nil so the
finish hook treats it as a no-op."
(let ((cj/--projectile-revert-state nil)
(projectile-compile-cmd-map (make-hash-table :test 'equal)))
(cl-letf (((symbol-function 'cj/--f4-project-root) (lambda () nil)))
(cj/--projectile-capture-cmd 'projectile-compile-cmd-map))
(should (null cj/--projectile-revert-state))))
;;; Error Cases
(ert-deftest test-dev-fkeys-projectile-capture-cmd-unbound-map-leaves-state-nil ()
"Error: when the cmd-map symbol is unbound (projectile not loaded),
state stays nil and no error is raised."
(let ((cj/--projectile-revert-state nil))
(cl-letf (((symbol-function 'cj/--f4-project-root) (lambda () "/p/")))
;; Use a clearly-unbound symbol to simulate projectile-not-loaded.
(cj/--projectile-capture-cmd 'cj-test--definitely-not-bound-xyzzy))
(should (null cj/--projectile-revert-state))))
(provide 'test-dev-fkeys--projectile-capture-cmd)
;;; test-dev-fkeys--projectile-capture-cmd.el ends here
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