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;;; test-prog-shell--make-script-executable.el --- Tests for cj/make-script-executable -*- lexical-binding: t -*-
;;; Commentary:
;; Tests for the cj/make-script-executable function in prog-shell.el
;;; Code:
(require 'ert)
(require 'prog-shell)
;; Helper to create temp file with content
(defun test--create-temp-script (content)
"Create a temp file with CONTENT and return its path."
(let ((temp-file (make-temp-file "test-script-")))
(with-temp-file temp-file
(insert content))
;; Remove execute permission to start fresh
(set-file-modes temp-file #o644)
temp-file))
;; Helper to check if file is executable
(defun test--file-executable-p (file)
"Return t if FILE has any execute bit set."
(not (zerop (logand (file-modes file) #o111))))
;;; Normal Cases
(ert-deftest test-make-script-executable-normal-bash-shebang ()
"File with bash shebang becomes executable."
(let ((temp-file (test--create-temp-script "#!/bin/bash\necho hello")))
(unwind-protect
(with-current-buffer (find-file-noselect temp-file)
(should-not (test--file-executable-p temp-file))
(cj/make-script-executable)
(should (test--file-executable-p temp-file))
(kill-buffer))
(delete-file temp-file))))
(ert-deftest test-make-script-executable-normal-python-shebang ()
"File with python shebang becomes executable."
(let ((temp-file (test--create-temp-script "#!/usr/bin/env python3\nprint('hi')")))
(unwind-protect
(with-current-buffer (find-file-noselect temp-file)
(should-not (test--file-executable-p temp-file))
(cj/make-script-executable)
(should (test--file-executable-p temp-file))
(kill-buffer))
(delete-file temp-file))))
(ert-deftest test-make-script-executable-normal-already-executable ()
"Already executable file stays executable without error."
(let ((temp-file (test--create-temp-script "#!/bin/bash\necho hello")))
(unwind-protect
(progn
(set-file-modes temp-file #o755)
(with-current-buffer (find-file-noselect temp-file)
(should (test--file-executable-p temp-file))
(cj/make-script-executable) ; should not error
(should (test--file-executable-p temp-file))
(kill-buffer)))
(delete-file temp-file))))
;;; Boundary Cases
(ert-deftest test-make-script-executable-boundary-no-shebang ()
"File without shebang is NOT made executable."
(let ((temp-file (test--create-temp-script "echo hello\n# no shebang")))
(unwind-protect
(with-current-buffer (find-file-noselect temp-file)
(should-not (test--file-executable-p temp-file))
(cj/make-script-executable)
(should-not (test--file-executable-p temp-file))
(kill-buffer))
(delete-file temp-file))))
(ert-deftest test-make-script-executable-boundary-empty-file ()
"Empty file is NOT made executable."
(let ((temp-file (test--create-temp-script "")))
(unwind-protect
(with-current-buffer (find-file-noselect temp-file)
(should-not (test--file-executable-p temp-file))
(cj/make-script-executable)
(should-not (test--file-executable-p temp-file))
(kill-buffer))
(delete-file temp-file))))
(ert-deftest test-make-script-executable-boundary-shebang-line-two ()
"Shebang on line 2 (not line 1) does NOT make file executable."
(let ((temp-file (test--create-temp-script "\n#!/bin/bash\necho hello")))
(unwind-protect
(with-current-buffer (find-file-noselect temp-file)
(should-not (test--file-executable-p temp-file))
(cj/make-script-executable)
(should-not (test--file-executable-p temp-file))
(kill-buffer))
(delete-file temp-file))))
(ert-deftest test-make-script-executable-boundary-hash-but-not-shebang ()
"File starting with # but not #! is NOT made executable."
(let ((temp-file (test--create-temp-script "# This is a comment\necho hello")))
(unwind-protect
(with-current-buffer (find-file-noselect temp-file)
(should-not (test--file-executable-p temp-file))
(cj/make-script-executable)
(should-not (test--file-executable-p temp-file))
(kill-buffer))
(delete-file temp-file))))
;;; Edge Cases
(ert-deftest test-make-script-executable-edge-no-buffer-file ()
"Buffer not visiting a file does not error."
(with-temp-buffer
(insert "#!/bin/bash\necho hello")
(should-not buffer-file-name)
(cj/make-script-executable))) ; should not error
(ert-deftest test-make-script-executable-edge-shebang-with-space ()
"Shebang with space after #! still works."
(let ((temp-file (test--create-temp-script "#! /bin/bash\necho hello")))
(unwind-protect
(with-current-buffer (find-file-noselect temp-file)
(should-not (test--file-executable-p temp-file))
(cj/make-script-executable)
(should (test--file-executable-p temp-file))
(kill-buffer))
(delete-file temp-file))))
(provide 'test-prog-shell--make-script-executable)
;;; test-prog-shell--make-script-executable.el ends here
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