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;;; restart-emacs-test.el --- Tests for restart-emacs -*- lexical-binding: t; -*-
;;; Commentary:
;;; Tests for restart-emacs, major use case is to run from the command-line
;;; using `cask exec ert-runner' but can be run interactively as well. Do
;;; M-x `eval-buffer' RET
;;; Code:
;; For interactive testing
(unless noninteractive
(load (expand-file-name "test-helper.el") t))
(require 'restart-emacs)
(require 'ert)
(require 'el-mock)
;; el-mock requires this
(require 'cl)
(require 'cl-lib)
(ert-deftest restart-emacs-test-prefix-translation ()
(with-mock
(stub read-string => "read string")
(should (equal (restart-emacs--translate-prefix-to-args '(4)) '("--debug-init")))
(should (equal (restart-emacs--translate-prefix-to-args '(16)) '("-Q")))
(should (equal (restart-emacs--translate-prefix-to-args '(64)) '("read" "string")))))
(ert-deftest restart-emacs-test-restart-capability ()
(with-mock
(stub display-graphic-p => nil)
;; `signal' tries to use this (and fails) if `system-type' is `windows-nt',
;; stub it out
(stub w32-long-file-name => "/tmp")
(let ((system-type 'windows-nt))
(should-error (restart-emacs--ensure-can-restart) :type (if (version<= "24.3" emacs-version)
'user-error
'error)))
(let ((system-type 'ms-dos))
(should-error (restart-emacs--ensure-can-restart) :type (if (version<= "24.3" emacs-version)
'user-error
'error))))
(with-mock
(stub display-graphic-p => t)
(let ((system-type 'windows-nt))
(should-not (restart-emacs--ensure-can-restart)))
(let ((system-type 'ms-dos))
(should-not (restart-emacs--ensure-can-restart)))))
(ert-deftest restart-emacs-test-path-calculation ()
(let ((invocation-name "emacs")
(invocation-directory "/tmp/test/"))
(should (string= (restart-emacs--get-emacs-binary) "/tmp/test/emacs"))))
(ert-deftest restart-emacs-test-gui-using-sh ()
(with-mock
(stub restart-emacs--get-emacs-binary => "/tmp/bin/emacs")
(mock (call-process "sh" nil
0 nil
"-c" "/tmp/bin/emacs --debug-init &"))
(should-not (restart-emacs--start-gui-using-sh '("--debug-init")))))
(ert-deftest restart-emacs-test-gui-on-windows ()
(with-mock
(stub restart-emacs--get-emacs-binary => "/tmp/bin/emacs")
(mock (w32-shell-execute "open" "/tmp/bin/emacs" '("--debug-init")))
(should-not (restart-emacs--start-gui-on-windows '("--debug-init")))))
(ert-deftest restart-emacs-test-start-emacs-in-terminal ()
(with-mock
(stub restart-emacs--get-emacs-binary => "/tmp/bin/emacs")
(mock (suspend-emacs "fg ; /tmp/bin/emacs --debug-init -nw"))
(should-not (restart-emacs--start-emacs-in-terminal '("--debug-init")))))
(ert-deftest restart-emacs-test-strategy ()
(with-mock
(stub display-graphic-p => nil)
;; `signal' tries to use this (and fails) if `system-type' is `windows-nt',
;; stub it out
(stub w32-long-file-name => "/tmp")
(mock (restart-emacs--start-emacs-in-terminal nil) :times 5)
(dolist (system '(gnu gnu/linux gnu/kfreebsd darwin cygwin))
(let ((system-type system))
(should-not (restart-emacs--launch-other-emacs))))
(dolist (system '(windows-nt ms-dos))
(let ((system-type system))
(should-error (restart-emacs--launch-other-emacs) :type (if (version<= "24.3" emacs-version)
'user-error
'error)))))
(with-mock
(stub display-graphic-p => t)
(mock (restart-emacs--start-gui-using-sh nil) :times 5)
(mock (restart-emacs--start-gui-on-windows nil) :times 2)
(dolist (system '(gnu gnu/linux gnu/kfreebsd darwin cygwin))
(let ((system-type system))
(should-not (restart-emacs--launch-other-emacs))))
(dolist (system '(windows-nt ms-dos))
(let ((system-type system))
(should-not (restart-emacs--launch-other-emacs))))))
(ert-deftest restart-emacs-test-restart-setup ()
(cl-letf (((symbol-function 'save-buffers-kill-emacs)
(lambda nil
(should (equal (cl-position #'restart-emacs--launch-other-emacs kill-emacs-hook)
(1- (length kill-emacs-hook)))))))
(restart-emacs)
;; Make sure that hook to restart emacs is removed after the function
;; restart-emacs exits
(should-not (cl-find #'restart-emacs--launch-other-emacs kill-emacs-hook))))
(unless noninteractive
(ert "^restart-emacs-"))
(provide 'restart-emacs-test)
;;; restart-emacs-test.el ends here
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