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Diffstat (limited to 'tests/test-custom-file-buffer-copy-whole-buffer.el')
| -rw-r--r-- | tests/test-custom-file-buffer-copy-whole-buffer.el | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/tests/test-custom-file-buffer-copy-whole-buffer.el b/tests/test-custom-file-buffer-copy-whole-buffer.el new file mode 100644 index 00000000..a0546b18 --- /dev/null +++ b/tests/test-custom-file-buffer-copy-whole-buffer.el @@ -0,0 +1,194 @@ +;;; test-custom-file-buffer-copy-whole-buffer.el --- Tests for cj/copy-whole-buffer -*- lexical-binding: t; -*- + +;;; Commentary: +;; Tests for the cj/copy-whole-buffer function from custom-file-buffer.el +;; +;; This function copies the entire contents of the current buffer to the kill ring. +;; Point and mark are left exactly where they were. No transient region is created. + +;;; Code: + +(require 'ert) +(require 'testutil-general) + +;; Add modules directory to load path +(add-to-list 'load-path (expand-file-name "modules" user-emacs-directory)) + +;; Stub dependencies before loading the module +(defvar cj/custom-keymap (make-sparse-keymap) + "Stub keymap for testing.") + +;; Stub ps-print package +(provide 'ps-print) + +;; Now load the actual production module +(require 'custom-file-buffer) + +;;; Setup and Teardown + +(defun test-copy-whole-buffer-setup () + "Set up test environment." + (setq kill-ring nil)) + +(defun test-copy-whole-buffer-teardown () + "Clean up test environment." + (setq kill-ring nil)) + +;;; Normal Cases + +(ert-deftest test-copy-whole-buffer-simple-text () + "Should copy simple text content to kill ring." + (test-copy-whole-buffer-setup) + (unwind-protect + (with-temp-buffer + (insert "Hello, world!") + (cj/copy-whole-buffer) + (should (equal (car kill-ring) "Hello, world!"))) + (test-copy-whole-buffer-teardown))) + +(ert-deftest test-copy-whole-buffer-preserves-point () + "Should preserve point position." + (test-copy-whole-buffer-setup) + (unwind-protect + (with-temp-buffer + (insert "Hello, world!") + (goto-char 7) ; Position in middle + (cj/copy-whole-buffer) + (should (= (point) 7))) + (test-copy-whole-buffer-teardown))) + +(ert-deftest test-copy-whole-buffer-preserves-mark () + "Should preserve mark position." + (test-copy-whole-buffer-setup) + (unwind-protect + (with-temp-buffer + (insert "Hello, world!") + (push-mark 5) + (goto-char 10) + (cj/copy-whole-buffer) + (should (= (mark) 5)) + (should (= (point) 10))) + (test-copy-whole-buffer-teardown))) + +;;; Boundary Cases + +(ert-deftest test-copy-whole-buffer-empty () + "Should handle empty buffer." + (test-copy-whole-buffer-setup) + (unwind-protect + (with-temp-buffer + (cj/copy-whole-buffer) + (should (equal (car kill-ring) ""))) + (test-copy-whole-buffer-teardown))) + +(ert-deftest test-copy-whole-buffer-large () + "Should handle very large buffer." + (test-copy-whole-buffer-setup) + (unwind-protect + (with-temp-buffer + (let ((large-content (make-string 100000 ?x))) + (insert large-content) + (cj/copy-whole-buffer) + (should (equal (car kill-ring) large-content)))) + (test-copy-whole-buffer-teardown))) + +(ert-deftest test-copy-whole-buffer-unicode () + "Should handle unicode content (emoji, RTL text)." + (test-copy-whole-buffer-setup) + (unwind-protect + (with-temp-buffer + (insert "Hello 👋 مرØبا") + (cj/copy-whole-buffer) + (should (equal (car kill-ring) "Hello 👋 مرØبا"))) + (test-copy-whole-buffer-teardown))) + +(ert-deftest test-copy-whole-buffer-binary () + "Should handle binary content." + (test-copy-whole-buffer-setup) + (unwind-protect + (with-temp-buffer + (insert (string 0 1 2 255)) + (cj/copy-whole-buffer) + (should (equal (car kill-ring) (string 0 1 2 255)))) + (test-copy-whole-buffer-teardown))) + +(ert-deftest test-copy-whole-buffer-only-whitespace () + "Should handle buffer with only whitespace." + (test-copy-whole-buffer-setup) + (unwind-protect + (with-temp-buffer + (insert " \t\n ") + (cj/copy-whole-buffer) + (should (equal (car kill-ring) " \t\n "))) + (test-copy-whole-buffer-teardown))) + +(ert-deftest test-copy-whole-buffer-newlines-at-boundaries () + "Should handle newlines at start/end." + (test-copy-whole-buffer-setup) + (unwind-protect + (with-temp-buffer + (insert "\n\nHello\n\n") + (cj/copy-whole-buffer) + (should (equal (car kill-ring) "\n\nHello\n\n"))) + (test-copy-whole-buffer-teardown))) + +(ert-deftest test-copy-whole-buffer-narrowed () + "Should copy only visible region in narrowed buffer." + (test-copy-whole-buffer-setup) + (unwind-protect + (with-temp-buffer + (insert "Line 1\nLine 2\nLine 3\n") + (goto-char (point-min)) + (forward-line 1) + (narrow-to-region (point) (progn (forward-line 1) (point))) + (cj/copy-whole-buffer) + ;; Should copy only the narrowed region + (should (equal (car kill-ring) "Line 2\n"))) + (test-copy-whole-buffer-teardown))) + +(ert-deftest test-copy-whole-buffer-read-only () + "Should work in read-only buffer." + (test-copy-whole-buffer-setup) + (unwind-protect + (with-temp-buffer + (insert "Read-only content") + (read-only-mode 1) + (cj/copy-whole-buffer) + (should (equal (car kill-ring) "Read-only content"))) + (test-copy-whole-buffer-teardown))) + +(ert-deftest test-copy-whole-buffer-kill-ring-has-content () + "Should add to kill ring when it already has content." + (test-copy-whole-buffer-setup) + (unwind-protect + (with-temp-buffer + (insert "New content") + (kill-new "existing content") + (cj/copy-whole-buffer) + (should (equal (car kill-ring) "New content")) + (should (equal (cadr kill-ring) "existing content"))) + (test-copy-whole-buffer-teardown))) + +(ert-deftest test-copy-whole-buffer-multiline () + "Should preserve multiline content." + (test-copy-whole-buffer-setup) + (unwind-protect + (with-temp-buffer + (insert "Line 1\nLine 2\nLine 3") + (cj/copy-whole-buffer) + (should (equal (car kill-ring) "Line 1\nLine 2\nLine 3"))) + (test-copy-whole-buffer-teardown))) + +(ert-deftest test-copy-whole-buffer-no-properties () + "Should strip text properties." + (test-copy-whole-buffer-setup) + (unwind-protect + (with-temp-buffer + (insert (propertize "Hello" 'face 'bold)) + (cj/copy-whole-buffer) + (should (equal (car kill-ring) "Hello")) + (should (null (text-properties-at 0 (car kill-ring))))) + (test-copy-whole-buffer-teardown))) + +(provide 'test-custom-file-buffer-copy-whole-buffer) +;;; test-custom-file-buffer-copy-whole-buffer.el ends here |