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;;; test-gptel-tools-read-buffer.el --- Tests for read_buffer gptel tool -*- lexical-binding: t; -*-
;;; Commentary:
;; Tests for `cj/read-buffer--get-content', the testable helper that
;; backs the read_buffer gptel tool.
;;; Code:
(require 'ert)
(eval-and-compile
(add-to-list 'load-path (expand-file-name "tests" user-emacs-directory))
(add-to-list 'load-path (expand-file-name "gptel-tools" user-emacs-directory))
(setq load-prefer-newer t)
(unless (featurep 'gptel)
(defvar gptel-tools nil)
(defun gptel-make-tool (&rest _args) nil)
(defun gptel-get-tool (&rest _args) nil)
(provide 'gptel)))
(require 'read_buffer)
(ert-deftest test-gptel-tools-read-buffer-normal ()
"Normal: returns the contents of an existing buffer."
(with-temp-buffer
(rename-buffer "test-gptel-tools-read-buffer-normal" t)
(insert "hello world")
(should (equal (cj/read-buffer--get-content (buffer-name)) "hello world"))))
(ert-deftest test-gptel-tools-read-buffer-boundary-empty-buffer ()
"Boundary: empty buffer returns the empty string."
(with-temp-buffer
(rename-buffer "test-gptel-tools-read-buffer-empty" t)
(should (equal (cj/read-buffer--get-content (buffer-name)) ""))))
(ert-deftest test-gptel-tools-read-buffer-boundary-buffer-object ()
"Boundary: accepts a buffer object as well as a name string."
(with-temp-buffer
(insert "from buffer object")
(should (equal (cj/read-buffer--get-content (current-buffer))
"from buffer object"))))
(ert-deftest test-gptel-tools-read-buffer-boundary-widened-content ()
"Boundary: returns the whole buffer even when the buffer is narrowed."
(with-temp-buffer
(insert "visible\nhidden\n")
(narrow-to-region (point-min) (line-end-position))
(should (equal (cj/read-buffer--get-content (current-buffer))
"visible\nhidden\n"))))
(ert-deftest test-gptel-tools-read-buffer-boundary-strips-text-properties ()
"Boundary: the returned string has no text properties."
(with-temp-buffer
(rename-buffer "test-gptel-tools-read-buffer-props" t)
(insert (propertize "fontified" 'face 'bold))
(let ((content (cj/read-buffer--get-content (buffer-name))))
(should (equal content "fontified"))
(should-not (text-properties-at 0 content)))))
(ert-deftest test-gptel-tools-read-buffer-error-missing-buffer ()
"Error: nonexistent buffer name signals."
(when (get-buffer "test-gptel-tools-read-buffer-absent")
(kill-buffer "test-gptel-tools-read-buffer-absent"))
(should-error (cj/read-buffer--get-content
"test-gptel-tools-read-buffer-absent")))
(ert-deftest test-gptel-tools-read-buffer-error-killed-buffer-object ()
"Error: a killed buffer object signals clearly."
(let ((buffer (generate-new-buffer "test-gptel-tools-read-buffer-killed")))
(kill-buffer buffer)
(should-error (cj/read-buffer--get-content buffer))))
(provide 'test-gptel-tools-read-buffer)
;;; test-gptel-tools-read-buffer.el ends here
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