| Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 1 | ;;; gyp-tests.el - unit tests for gyp-mode. |
| 2 | |
| 3 | ;; Copyright (c) 2012 Google Inc. All rights reserved. |
| 4 | ;; Use of this source code is governed by a BSD-style license that can be |
| 5 | ;; found in the LICENSE file. |
| 6 | |
| 7 | ;; The recommended way to run these tests is to run them from the command-line, |
| 8 | ;; with the run-unit-tests.sh script. |
| 9 | |
| 10 | (require 'cl) |
| 11 | (require 'ert) |
| 12 | (require 'gyp) |
| 13 | |
| 14 | (defconst samples (directory-files "testdata" t ".gyp$") |
| 15 | "List of golden samples to check") |
| 16 | |
| 17 | (defun fontify (filename) |
| 18 | (with-temp-buffer |
| 19 | (insert-file-contents-literally filename) |
| 20 | (gyp-mode) |
| 21 | (font-lock-fontify-buffer) |
| 22 | (buffer-string))) |
| 23 | |
| 24 | (defun read-golden-sample (filename) |
| 25 | (with-temp-buffer |
| 26 | (insert-file-contents-literally (concat filename ".fontified")) |
| 27 | (read (current-buffer)))) |
| 28 | |
| 29 | (defun equivalent-face (face) |
| 30 | "For the purposes of face comparison, we're not interested in the |
| 31 | differences between certain faces. For example, the difference between |
| 32 | font-lock-comment-delimiter and font-lock-comment-face." |
| 33 | (case face |
| 34 | ((font-lock-comment-delimiter-face) font-lock-comment-face) |
| 35 | (t face))) |
| 36 | |
| 37 | (defun text-face-properties (s) |
| 38 | "Extract the text properties from s" |
| 39 | (let ((result (list t))) |
| 40 | (dotimes (i (length s)) |
| 41 | (setq result (cons (equivalent-face (get-text-property i 'face s)) |
| 42 | result))) |
| 43 | (nreverse result))) |
| 44 | |
| 45 | (ert-deftest test-golden-samples () |
| 46 | "Check that fontification produces the same results as the golden samples" |
| 47 | (dolist (sample samples) |
| 48 | (let ((golden (read-golden-sample sample)) |
| 49 | (fontified (fontify sample))) |
| 50 | (should (equal golden fontified)) |
| 51 | (should (equal (text-face-properties golden) |
| 52 | (text-face-properties fontified)))))) |
| 53 | |
| 54 | (defun create-golden-sample (filename) |
| 55 | "Create a golden sample by fontifying filename and writing out the printable |
| 56 | representation of the fontified buffer (with text properties) to the |
| 57 | FILENAME.fontified" |
| 58 | (with-temp-file (concat filename ".fontified") |
| 59 | (print (fontify filename) (current-buffer)))) |
| 60 | |
| 61 | (defun create-golden-samples () |
| 62 | "Recreate the golden samples" |
| 63 | (dolist (sample samples) (create-golden-sample sample))) |