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