test: Add `test_emacs_expect_t'.

[notmuch] / test / test-lib.el

diff --git a/test/test-lib.el b/test/test-lib.el
index 344a02e8bf809e731528de3211517d2eec63adec..96752f0b0e5ad33acd699550db7ef1777b00e804 100644 (file)
--- a/test/test-lib.el
+++ b/test/test-lib.el
@@ -20,14 +20,34 @@
 ;;
 ;; Authors: Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
 
-;; avoid crazy 10-column default of --batch
-(set-frame-width (window-frame (get-buffer-window)) 80)
+;; `read-file-name' by default uses `completing-read' function to read
+;; user input.  It does not respect `standard-input' variable which we
+;; use in tests to provide user input.  So replace it with a plain
+;; `read' call.
+(setq read-file-name-function (lambda (&rest _) (read)))
+
+;; Work around a bug in emacs 23.1 and emacs 23.2 which prevents
+;; noninteractive (kill-emacs) from emacsclient.
+(if (and (= emacs-major-version 23) (< emacs-minor-version 3))
+  (defadvice kill-emacs (before disable-yes-or-no-p activate)
+    "Disable yes-or-no-p before executing kill-emacs"
+    (defun yes-or-no-p (prompt) t)))
 
 (defun notmuch-test-wait ()
   "Wait for process completion."
   (while (get-buffer-process (current-buffer))
     (sleep-for 0.1)))
 
+(defun test-output (&optional filename)
+  "Save current buffer to file FILENAME.  Default FILENAME is OUTPUT."
+  (write-region (point-min) (point-max) (or filename "OUTPUT")))
+
+(defun test-visible-output (&optional filename)
+  "Save visible text in current buffer to file FILENAME.  Default
+FILENAME is OUTPUT."
+  (let ((text (visible-buffer-string)))
+    (with-temp-file (or filename "OUTPUT") (insert text))))
+
 (defun visible-buffer-string ()
   "Same as `buffer-string', but excludes invisible text."
   (visible-buffer-substring (point-min) (point-max)))
@@ -41,3 +61,34 @@
          (setq str (concat str (buffer-substring start next-pos))))
        (setq start next-pos)))
     str))
+
+(defun orphan-watchdog (pid)
+  "Periodically check that the process with id PID is still
+running, quit if it terminated."
+  (if (not (process-attributes pid))
+      (kill-emacs)
+    (run-at-time "1 min" nil 'orphan-watchdog pid)))
+
+(defun hook-counter (hook)
+  "Count how many times a hook is called.  Increments
+`hook'-counter variable value if it is bound, otherwise does
+nothing."
+  (let ((counter (intern (concat (symbol-name hook) "-counter"))))
+    (if (boundp counter)
+       (set counter (1+ (symbol-value counter))))))
+
+(defun add-hook-counter (hook)
+  "Add hook to count how many times `hook' is called."
+  (add-hook hook (apply-partially 'hook-counter hook)))
+
+(add-hook-counter 'notmuch-hello-mode-hook)
+(add-hook-counter 'notmuch-hello-refresh-hook)
+
+(defmacro notmuch-test-run (&rest body)
+  "Evaluate a BODY of test expressions and output the result."
+  `(with-temp-buffer
+     (let ((result (progn ,@body)))
+       (insert (if (stringp result)
+                  result
+                (prin1-to-string result)))
+       (test-output))))