gecko/gfx/tests/gfxFontSelectionTests.h

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Corporation code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Vladimir Vukicevic <vladimir@pobox.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
*
* This file is #included directly by gfxFontSelectionTest.cpp, and as
* such does not need any #include files or similar. (However, should
* any extra ones be required, it should be ok to do so, as well as
* defining new functions, etc.
*
* To add a new test, call AddTest with the following arguments: the
* CSS font-family string, the gfxFontStyle, an enum (either S_ASCII
* or S_UTF8) indicating the string type, and then the text string
* itself as a string literal. Unfortunately there is no good way to
* embed UTF8 directly into C code, so hex literals will need to be
* placed in the string. Because of the way \x is parsed things like
* "\xabcd" won't work -- you have to do "\xab""cd". "\xab\x01\x03"
* will work fine, though.
*
* The result of AddTest should be assigned to the variable t; after
* AddTest, one or more calls to t->Expect() should be added to define
* the expected result. Multiple Expect() calls in a row for the same
* platform mean that the resulting glyph/font selection items needs
* to have as many items as there are Expect() calls. (See below for
* examples.)
*
* The arguments to Expect are:
*
* platform - a string identifying the platform.
* Valid strings are "win32", "macosx", and "gtk2-pango".
* font - a string (UTF8) giving the unique name of the font.
* See below for how the unique name is constructed.
* glyphs - a set of glyph IDs that are expected.
* This array is constructed using a GLYPHS() macro.
*
* GLYPHS() is just a #define for LiteralArray, which is defined
* in gfxFontSelectionTest.cpp -- if you need more array elements
* than available, just extend LiteralArray with a new constructor
* with the required number of unsigned longs.
*
* The unique font name is a platform-specific constructed string for
* (mostly) identifying a font. On Mac, it's created by taking the
* Postscript name of the font. On Windows, it's created by taking
* the family name, and then appending attributes such as ":Bold",
* ":Italic", etc.
*
* The easiest way to create a test is to add a call to AddTest, and
* then run the test. The output will include a list like:
*
* ==== Test 1
* expected:
* Run[ 0]: 'Verdana' 73 82 82
* Run[ 1]: 'MS UI Gothic' 19401
* Run[ 2]: 'Verdana' 69 68 85
* Test 1 failed
*
* This gives you the information needed for the calls to Expect() --
* the unique name, and the glyphs. Appropriate calls to expect for
* the above would be:
*
* t->Expect ("win32", "Verdana", GLYPHS(73, 82, 82));
* t->Expect ("win32", "MS UI Gothic", GLYPHS(19401));
* t->Expect ("win32", "Verdana", GLYPHS(69, 68, 85));
*
*/
void
SetupTests()
{
TestEntry *t;
/* some common styles */
gfxFontStyle style_western_normal_16 (FONT_STYLE_NORMAL,
NS_FONT_STRETCH_NORMAL,
400,
16.0,
NS_NewPermanentAtom(NS_LITERAL_STRING("en")),
0.0,
false, false, false,
NS_LITERAL_STRING(""),
NS_LITERAL_STRING(""));
gfxFontStyle style_western_bold_16 (FONT_STYLE_NORMAL,
NS_FONT_STRETCH_NORMAL,
700,
16.0,
NS_NewPermanentAtom(NS_LITERAL_STRING("en")),
0.0,
false, false, false,
NS_LITERAL_STRING(""),
NS_LITERAL_STRING(""));
/* Test 0 */
t = AddTest ("sans-serif",
style_western_normal_16,
S_ASCII,
"ABCD");
t->Expect ("win32", "Arial", GLYPHS(36, 37, 38, 39));
t->Expect ("macosx", "Helvetica", GLYPHS(36, 37, 38, 39));
t->Expect ("gtk2-pango", "Albany AMT", GLYPHS(36, 37, 38, 39));
/* Test 1 */
t = AddTest ("verdana,sans-serif",
style_western_normal_16,
S_UTF8,
"foo\xe2\x80\x91""bar");
t->Expect ("win32", "Verdana", GLYPHS(73, 82, 82));
t->Expect ("win32", "Arial Unicode MS", GLYPHS(3236));
t->Expect ("win32", "Verdana", GLYPHS(69, 68, 85));
t->Expect ("macosx", "Verdana", GLYPHS(73, 82, 82));
t->Expect ("macosx", "Helvetica", GLYPHS(587));
t->Expect ("macosx", "Verdana", GLYPHS(69, 68, 85));
/* Test 2 */
t = AddTest ("sans-serif",
style_western_bold_16,
S_ASCII,
"ABCD");
t->Expect ("win32", "Arial:700", GLYPHS(36, 37, 38, 39));
t->Expect ("macosx", "Helvetica-Bold", GLYPHS(36, 37, 38, 39));
t->Expect ("gtk2-pango", "Albany AMT Bold", GLYPHS(36, 37, 38, 39));
/* Test 3: RTL Arabic with a ligature and leading and trailing whitespace */
t = AddTest ("sans-serif",
style_western_normal_16,
S_UTF8,
" \xd8\xaa\xd9\x85 ");
t->SetRTL();
t->Expect ("macosx", "Helvetica", GLYPHS(3));
t->Expect ("macosx", "AlBayan", GLYPHS(47));
t->Expect ("macosx", "Helvetica", GLYPHS(3));
t->Expect ("win32", "Arial", GLYPHS(3, 919, 994, 3));
/* Test 4: LTR Arabic with leading and trailing whitespace */
t = AddTest ("sans-serif",
style_western_normal_16,
S_UTF8,
" \xd9\x85\xd8\xaa ");
t->Expect ("macosx", "Helvetica", GLYPHS(3));
t->Expect ("macosx", "AlBayan", GLYPHS(2, 47));
t->Expect ("macosx", "Helvetica", GLYPHS(3));
t->Expect ("win32", "Arial", GLYPHS(3, 994, 919, 3));
/* Test 5: RTL ASCII with leading whitespace */
t = AddTest ("sans-serif",
style_western_normal_16,
S_ASCII,
" ab");
t->SetRTL();
t->Expect ("macosx", "Helvetica", GLYPHS(3, 68, 69));
t->Expect ("win32", "Arial", GLYPHS(3, 68, 69));
t->Expect ("gtk2-pango", "Albany AMT", GLYPHS(3, 68, 69));
/* Test 6: RTL ASCII with trailing whitespace */
t = AddTest ("sans-serif",
style_western_normal_16,
S_ASCII,
"ab ");
t->SetRTL();
t->Expect ("macosx", "Helvetica", GLYPHS(68, 69, 3));
t->Expect ("win32", "Arial", GLYPHS(68, 69, 3));
t->Expect ("gtk2-pango", "Albany AMT", GLYPHS(68, 69, 3));
/* Test 7: Simple ASCII ligature */
/* Do we have a Windows font with ligatures? Can we use DejaVu Sans? */
t = AddTest ("sans-serif",
style_western_normal_16,
S_ASCII,
"fi");
t->Expect ("macosx", "Helvetica", GLYPHS(192));
t->Expect ("win32", "Arial", GLYPHS(73, 76));
/* Test 8: DEVANAGARI VOWEL I reordering */
/* The glyph for DEVANAGARI VOWEL I 2367 (101) is displayed before the glyph for 2361 (99) */
t = AddTest ("sans-serif",
style_western_normal_16,
S_UTF8,
"\xe0\xa4\x9a\xe0\xa4\xbe\xe0\xa4\xb9\xe0\xa4\xbf\xe0\xa4\x8f"); // 2330 2366 2361 2367 2319
t->Expect ("macosx", "DevanagariMT", GLYPHS(71, 100, 101, 99, 60));
t->Expect ("win32", "Mangal", GLYPHS(133, 545, 465, 161, 102));
/* Test 9: NWJ test */
t = AddTest ("Kartika",
style_western_normal_16,
S_UTF8,
"\xe0\xb4\xb3\xe0\xb5\x8d\xe2\x80\x8d");
t->Expect ("win32", "Kartika", GLYPHS(332));
/* Test 10: NWJ fallback test */
/* it isn't clear what we should actually do in this case. Ideally
we would have the same results as the previous test, but because
we use sans-serif (i.e. Arial) CSS says we should should really
use Arial for U+200D.
*/
t = AddTest ("sans-serif",
style_western_normal_16,
S_UTF8,
"\xe0\xb4\xb3\xe0\xb5\x8d\xe2\x80\x8d");
t->Expect ("win32", "Kartika", GLYPHS(332));
}