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;;; test-ui-buffer-status-colors.el --- Tests for buffer status colors -*- lexical-binding: t; -*-
;;; Commentary:
;; Unit tests for buffer status color system.
;; Tests the state detection logic used by both cursor color and modeline.
;;; Code:
(require 'ert)
(require 'user-constants)
(require 'ui-config)
(require 'modeline-config)
;;; Color Constant Tests
(ert-deftest test-buffer-status-colors-has-all-states ()
"Test that all required states are defined in color alist."
(should (alist-get 'read-only cj/buffer-status-colors))
(should (alist-get 'overwrite cj/buffer-status-colors))
(should (alist-get 'modified cj/buffer-status-colors))
(should (alist-get 'unmodified cj/buffer-status-colors)))
(ert-deftest test-buffer-status-colors-values-are-strings ()
"Test that all color values are strings (hex colors)."
(dolist (entry cj/buffer-status-colors)
(should (stringp (cdr entry)))
;; Check if it looks like a hex color
(should (string-match-p "^#[0-9a-fA-F]\\{6\\}$" (cdr entry)))))
;;; Cursor Color State Detection Tests
(ert-deftest test-cursor-color-state-read-only-buffer ()
"Test state detection for read-only buffer."
(with-temp-buffer
(setq buffer-read-only t)
(let* ((state (cond
(buffer-read-only 'read-only)
(overwrite-mode 'overwrite)
((buffer-modified-p) 'modified)
(t 'unmodified))))
(should (eq state 'read-only)))))
(ert-deftest test-cursor-color-state-overwrite-mode ()
"Test state detection for overwrite mode."
(with-temp-buffer
(setq buffer-read-only nil)
(overwrite-mode 1)
(let* ((state (cond
(buffer-read-only 'read-only)
(overwrite-mode 'overwrite)
((buffer-modified-p) 'modified)
(t 'unmodified))))
(should (eq state 'overwrite)))))
(ert-deftest test-cursor-color-state-modified-buffer ()
"Test state detection for modified buffer."
(with-temp-buffer
(setq buffer-read-only nil)
(insert "test")
(set-buffer-modified-p t)
(let* ((state (cond
(buffer-read-only 'read-only)
(overwrite-mode 'overwrite)
((buffer-modified-p) 'modified)
(t 'unmodified))))
(should (eq state 'modified)))))
(ert-deftest test-cursor-color-state-unmodified-buffer ()
"Test state detection for unmodified buffer."
(with-temp-buffer
(setq buffer-read-only nil)
(set-buffer-modified-p nil)
(let* ((state (cond
(buffer-read-only 'read-only)
(overwrite-mode 'overwrite)
((buffer-modified-p) 'modified)
(t 'unmodified))))
(should (eq state 'unmodified)))))
(ert-deftest test-cursor-color-state-priority-read-only-over-modified ()
"Test that read-only state takes priority over modified state."
(with-temp-buffer
(insert "test")
(set-buffer-modified-p t)
(setq buffer-read-only t)
(let* ((state (cond
(buffer-read-only 'read-only)
(overwrite-mode 'overwrite)
((buffer-modified-p) 'modified)
(t 'unmodified))))
(should (eq state 'read-only)))))
(ert-deftest test-cursor-color-state-priority-overwrite-over-modified ()
"Test that overwrite mode takes priority over modified state."
(with-temp-buffer
(insert "test")
(set-buffer-modified-p t)
(overwrite-mode 1)
(let* ((state (cond
(buffer-read-only 'read-only)
(overwrite-mode 'overwrite)
((buffer-modified-p) 'modified)
(t 'unmodified))))
(should (eq state 'overwrite)))))
;;; Integration Tests - Cursor Color Function
(ert-deftest test-cursor-color-function-exists ()
"Test that cursor color function is defined."
(should (fboundp 'cj/set-cursor-color-according-to-mode)))
(ert-deftest test-cursor-color-returns-correct-color-for-read-only ()
"Test cursor color function returns red for read-only buffer."
(with-temp-buffer
(setq buffer-read-only t)
(let* ((state (cond
(buffer-read-only 'read-only)
(overwrite-mode 'overwrite)
((buffer-modified-p) 'modified)
(t 'unmodified)))
(color (alist-get state cj/buffer-status-colors)))
(should (equal color "#f06a3f")))))
(ert-deftest test-cursor-color-returns-correct-color-for-overwrite ()
"Test cursor color function returns gold for overwrite mode."
(with-temp-buffer
(overwrite-mode 1)
(let* ((state (cond
(buffer-read-only 'read-only)
(overwrite-mode 'overwrite)
((buffer-modified-p) 'modified)
(t 'unmodified)))
(color (alist-get state cj/buffer-status-colors)))
(should (equal color "#c48702")))))
(ert-deftest test-cursor-color-returns-correct-color-for-modified ()
"Test cursor color function returns green for modified buffer."
(with-temp-buffer
(insert "test")
(set-buffer-modified-p t)
(let* ((state (cond
(buffer-read-only 'read-only)
(overwrite-mode 'overwrite)
((buffer-modified-p) 'modified)
(t 'unmodified)))
(color (alist-get state cj/buffer-status-colors)))
(should (equal color "#64aa0f")))))
(ert-deftest test-cursor-color-returns-correct-color-for-unmodified ()
"Test cursor color function returns white for unmodified buffer."
(with-temp-buffer
(set-buffer-modified-p nil)
(let* ((state (cond
(buffer-read-only 'read-only)
(overwrite-mode 'overwrite)
((buffer-modified-p) 'modified)
(t 'unmodified)))
(color (alist-get state cj/buffer-status-colors)))
(should (equal color "#ffffff")))))
;;; Modeline Integration Tests
(ert-deftest test-modeline-buffer-name-variable-exists ()
"Test that modeline buffer name variable is defined."
(should (boundp 'cj/modeline-buffer-name)))
(ert-deftest test-modeline-buffer-name-is-mode-line-construct ()
"Test that modeline buffer name is a valid mode-line construct."
(should (listp cj/modeline-buffer-name))
(should (eq (car cj/modeline-buffer-name) :eval)))
;;; Edge Cases
(ert-deftest test-buffer-status-new-buffer-starts-unmodified ()
"Test that new buffer starts in unmodified state."
(with-temp-buffer
(let* ((state (cond
(buffer-read-only 'read-only)
(overwrite-mode 'overwrite)
((buffer-modified-p) 'modified)
(t 'unmodified))))
(should (eq state 'unmodified)))))
(ert-deftest test-buffer-status-insert-makes-modified ()
"Test that inserting text changes state to modified."
(with-temp-buffer
;; Initially unmodified
(set-buffer-modified-p nil)
(let ((state1 (cond
(buffer-read-only 'read-only)
(overwrite-mode 'overwrite)
((buffer-modified-p) 'modified)
(t 'unmodified))))
(should (eq state1 'unmodified)))
;; Insert text
(insert "test")
(let ((state2 (cond
(buffer-read-only 'read-only)
(overwrite-mode 'overwrite)
((buffer-modified-p) 'modified)
(t 'unmodified))))
(should (eq state2 'modified)))))
(ert-deftest test-buffer-status-explicit-unmodify ()
"Test that explicitly setting unmodified works."
(with-temp-buffer
(insert "test")
(should (buffer-modified-p))
;; Explicitly set unmodified
(set-buffer-modified-p nil)
(let ((state (cond
(buffer-read-only 'read-only)
(overwrite-mode 'overwrite)
((buffer-modified-p) 'modified)
(t 'unmodified))))
(should (eq state 'unmodified)))))
(provide 'test-ui-buffer-status-colors)
;;; test-ui-buffer-status-colors.el ends here
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