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18 * core_text unit tests.
22 * @copyright 2012 Petr Skoda {@link http://skodak.org}
23 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
26 defined('MOODLE_INTERNAL') || die();
30 * Unit tests for our utf-8 aware text processing.
34 * @copyright 2010 Petr Skoda (http://skodak.org)
35 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
37 class core_text_testcase extends advanced_testcase {
40 * Tests the static parse charset method.
42 public function test_parse_charset() {
43 $this->assertSame('windows-1250', core_text::parse_charset('Cp1250'));
44 // Does typo3 work? Some encoding moodle does not use.
45 $this->assertSame('windows-1252', core_text::parse_charset('ms-ansi'));
49 * Tests the static convert method.
51 public function test_convert() {
52 $utf8 = "Žluťoučký koníček";
53 $iso2 = pack("H*", "ae6c75bb6f75e86bfd206b6f6eede8656b");
54 $win = pack("H*", "8e6c759d6f75e86bfd206b6f6eede8656b");
55 $this->assertSame($iso2, core_text::convert($utf8, 'utf-8', 'iso-8859-2'));
56 $this->assertSame($utf8, core_text::convert($iso2, 'iso-8859-2', 'utf-8'));
57 $this->assertSame($win, core_text::convert($utf8, 'utf-8', 'win-1250'));
58 $this->assertSame($utf8, core_text::convert($win, 'win-1250', 'utf-8'));
59 $this->assertSame($iso2, core_text::convert($win, 'win-1250', 'iso-8859-2'));
60 $this->assertSame($win, core_text::convert($iso2, 'iso-8859-2', 'win-1250'));
61 $this->assertSame($iso2, core_text::convert($iso2, 'iso-8859-2', 'iso-8859-2'));
62 $this->assertSame($win, core_text::convert($win, 'win-1250', 'cp1250'));
63 $this->assertSame($utf8, core_text::convert($utf8, 'utf-8', 'utf-8'));
66 $str = pack("H*", "b8c0b8ecc0dfc4ea"); // EUC-JP
67 $this->assertSame($str, core_text::convert($utf8, 'utf-8', 'EUC-JP'));
68 $this->assertSame($utf8, core_text::convert($str, 'EUC-JP', 'utf-8'));
69 $this->assertSame($utf8, core_text::convert($utf8, 'utf-8', 'utf-8'));
71 $str = pack("H*", "1b24423840386c405f446a1b2842"); // ISO-2022-JP
72 $this->assertSame($str, core_text::convert($utf8, 'utf-8', 'ISO-2022-JP'));
73 $this->assertSame($utf8, core_text::convert($str, 'ISO-2022-JP', 'utf-8'));
74 $this->assertSame($utf8, core_text::convert($utf8, 'utf-8', 'utf-8'));
76 $str = pack("H*", "8cbe8cea90dd92e8"); // SHIFT-JIS
77 $this->assertSame($str, core_text::convert($utf8, 'utf-8', 'SHIFT-JIS'));
78 $this->assertSame($utf8, core_text::convert($str, 'SHIFT-JIS', 'utf-8'));
79 $this->assertSame($utf8, core_text::convert($utf8, 'utf-8', 'utf-8'));
82 $str = pack("H*", "bcf2cce5d6d0cec4"); // GB2312
83 $this->assertSame($str, core_text::convert($utf8, 'utf-8', 'GB2312'));
84 $this->assertSame($utf8, core_text::convert($str, 'GB2312', 'utf-8'));
85 $this->assertSame($utf8, core_text::convert($utf8, 'utf-8', 'utf-8'));
87 $str = pack("H*", "bcf2cce5d6d0cec4"); // GB18030
88 $this->assertSame($str, core_text::convert($utf8, 'utf-8', 'GB18030'));
89 $this->assertSame($utf8, core_text::convert($str, 'GB18030', 'utf-8'));
90 $this->assertSame($utf8, core_text::convert($utf8, 'utf-8', 'utf-8'));
92 $utf8 = "Žluťoučký koníček";
93 $this->assertSame('Zlutoucky konicek', core_text::convert($utf8, 'utf-8', 'ascii'));
94 $this->assertSame($utf8, core_text::convert($utf8.chr(130), 'utf-8', 'utf-8'));
95 $utf8 = "Der eine stößt den Speer zum Mann";
96 $this->assertSame('Der eine stoesst den Speer zum Mann', core_text::convert($utf8, 'utf-8', 'ascii'));
97 $iso1 = core_text::convert($utf8, 'utf-8', 'iso-8859-1');
98 $this->assertSame('Der eine stoesst den Speer zum Mann', core_text::convert($iso1, 'iso-8859-1', 'ascii'));
102 * Tests the static sub string method.
104 public function test_substr() {
105 $str = "Žluťoučký koníček";
106 $this->assertSame($str, core_text::substr($str, 0));
107 $this->assertSame('luťoučký koníček', core_text::substr($str, 1));
108 $this->assertSame('luť', core_text::substr($str, 1, 3));
109 $this->assertSame($str, core_text::substr($str, 0, 100));
110 $this->assertSame('če', core_text::substr($str, -3, 2));
112 $iso2 = pack("H*", "ae6c75bb6f75e86bfd206b6f6eede8656b");
113 $this->assertSame(core_text::convert('luť', 'utf-8', 'iso-8859-2'), core_text::substr($iso2, 1, 3, 'iso-8859-2'));
114 $this->assertSame(core_text::convert($str, 'utf-8', 'iso-8859-2'), core_text::substr($iso2, 0, 100, 'iso-8859-2'));
115 $this->assertSame(core_text::convert('če', 'utf-8', 'iso-8859-2'), core_text::substr($iso2, -3, 2, 'iso-8859-2'));
117 $win = pack("H*", "8e6c759d6f75e86bfd206b6f6eede8656b");
118 $this->assertSame(core_text::convert('luť', 'utf-8', 'cp1250'), core_text::substr($win, 1, 3, 'cp1250'));
119 $this->assertSame(core_text::convert($str, 'utf-8', 'cp1250'), core_text::substr($win, 0, 100, 'cp1250'));
120 $this->assertSame(core_text::convert('če', 'utf-8', 'cp1250'), core_text::substr($win, -3, 2, 'cp1250'));
122 $str = pack("H*", "b8c0b8ecc0dfc4ea"); // EUC-JP
123 $s = pack("H*", "b8ec"); // EUC-JP
124 $this->assertSame($s, core_text::substr($str, 1, 1, 'EUC-JP'));
126 $str = pack("H*", "1b24423840386c405f446a1b2842"); // ISO-2022-JP
127 $s = pack("H*", "1b2442386c1b2842"); // ISO-2022-JP
128 $this->assertSame($s, core_text::substr($str, 1, 1, 'ISO-2022-JP'));
130 $str = pack("H*", "8cbe8cea90dd92e8"); // SHIFT-JIS
131 $s = pack("H*", "8cea"); // SHIFT-JIS
132 $this->assertSame($s, core_text::substr($str, 1, 1, 'SHIFT-JIS'));
134 $str = pack("H*", "bcf2cce5d6d0cec4"); // GB2312
135 $s = pack("H*", "cce5"); // GB2312
136 $this->assertSame($s, core_text::substr($str, 1, 1, 'GB2312'));
138 $str = pack("H*", "bcf2cce5d6d0cec4"); // GB18030
139 $s = pack("H*", "cce5"); // GB18030
140 $this->assertSame($s, core_text::substr($str, 1, 1, 'GB18030'));
144 * Tests the static string length method.
146 public function test_strlen() {
147 $str = "Žluťoučký koníček";
148 $this->assertSame(17, core_text::strlen($str));
150 $iso2 = pack("H*", "ae6c75bb6f75e86bfd206b6f6eede8656b");
151 $this->assertSame(17, core_text::strlen($iso2, 'iso-8859-2'));
153 $win = pack("H*", "8e6c759d6f75e86bfd206b6f6eede8656b");
154 $this->assertSame(17, core_text::strlen($win, 'cp1250'));
156 $str = pack("H*", "b8ec"); // EUC-JP
157 $this->assertSame(1, core_text::strlen($str, 'EUC-JP'));
158 $str = pack("H*", "b8c0b8ecc0dfc4ea"); // EUC-JP
159 $this->assertSame(4, core_text::strlen($str, 'EUC-JP'));
161 $str = pack("H*", "1b2442386c1b2842"); // ISO-2022-JP
162 $this->assertSame(1, core_text::strlen($str, 'ISO-2022-JP'));
163 $str = pack("H*", "1b24423840386c405f446a1b2842"); // ISO-2022-JP
164 $this->assertSame(4, core_text::strlen($str, 'ISO-2022-JP'));
166 $str = pack("H*", "8cea"); // SHIFT-JIS
167 $this->assertSame(1, core_text::strlen($str, 'SHIFT-JIS'));
168 $str = pack("H*", "8cbe8cea90dd92e8"); // SHIFT-JIS
169 $this->assertSame(4, core_text::strlen($str, 'SHIFT-JIS'));
171 $str = pack("H*", "cce5"); // GB2312
172 $this->assertSame(1, core_text::strlen($str, 'GB2312'));
173 $str = pack("H*", "bcf2cce5d6d0cec4"); // GB2312
174 $this->assertSame(4, core_text::strlen($str, 'GB2312'));
176 $str = pack("H*", "cce5"); // GB18030
177 $this->assertSame(1, core_text::strlen($str, 'GB18030'));
178 $str = pack("H*", "bcf2cce5d6d0cec4"); // GB18030
179 $this->assertSame(4, core_text::strlen($str, 'GB18030'));
183 * Tests the static strtolower method.
185 public function test_strtolower() {
186 $str = "Žluťoučký koníček";
187 $low = 'žluťoučký koníček';
188 $this->assertSame($low, core_text::strtolower($str));
190 $iso2 = pack("H*", "ae6c75bb6f75e86bfd206b6f6eede8656b");
191 $this->assertSame(core_text::convert($low, 'utf-8', 'iso-8859-2'), core_text::strtolower($iso2, 'iso-8859-2'));
193 $win = pack("H*", "8e6c759d6f75e86bfd206b6f6eede8656b");
194 $this->assertSame(core_text::convert($low, 'utf-8', 'cp1250'), core_text::strtolower($win, 'cp1250'));
197 $this->assertSame($str, core_text::strtolower($str));
200 $this->assertSame($str, core_text::strtolower($str));
202 $str = pack("H*", "1b24423840386c405f446a1b2842"); // ISO-2022-JP
203 $this->assertSame($str, core_text::strtolower($str, 'ISO-2022-JP'));
205 $str = pack("H*", "8cbe8cea90dd92e8"); // SHIFT-JIS
206 $this->assertSame($str, core_text::strtolower($str, 'SHIFT-JIS'));
208 $str = pack("H*", "bcf2cce5d6d0cec4"); // GB2312
209 $this->assertSame($str, core_text::strtolower($str, 'GB2312'));
211 $str = pack("H*", "bcf2cce5d6d0cec4"); // GB18030
212 $this->assertSame($str, core_text::strtolower($str, 'GB18030'));
214 // Typo3 has problems with integers.
216 $this->assertSame((string)$str, core_text::strtolower($str));
220 * Tests the static strtoupper.
222 public function test_strtoupper() {
223 $str = "Žluťoučký koníček";
224 $up = 'ŽLUŤOUČKÝ KONÍČEK';
225 $this->assertSame($up, core_text::strtoupper($str));
227 $iso2 = pack("H*", "ae6c75bb6f75e86bfd206b6f6eede8656b");
228 $this->assertSame(core_text::convert($up, 'utf-8', 'iso-8859-2'), core_text::strtoupper($iso2, 'iso-8859-2'));
230 $win = pack("H*", "8e6c759d6f75e86bfd206b6f6eede8656b");
231 $this->assertSame(core_text::convert($up, 'utf-8', 'cp1250'), core_text::strtoupper($win, 'cp1250'));
234 $this->assertSame($str, core_text::strtoupper($str));
237 $this->assertSame($str, core_text::strtoupper($str));
239 $str = pack("H*", "1b24423840386c405f446a1b2842"); // ISO-2022-JP
240 $this->assertSame($str, core_text::strtoupper($str, 'ISO-2022-JP'));
242 $str = pack("H*", "8cbe8cea90dd92e8"); // SHIFT-JIS
243 $this->assertSame($str, core_text::strtoupper($str, 'SHIFT-JIS'));
245 $str = pack("H*", "bcf2cce5d6d0cec4"); // GB2312
246 $this->assertSame($str, core_text::strtoupper($str, 'GB2312'));
248 $str = pack("H*", "bcf2cce5d6d0cec4"); // GB18030
249 $this->assertSame($str, core_text::strtoupper($str, 'GB18030'));
253 * Test the strrev method.
255 public function test_strrev() {
257 "Žluťoučký koníček" => "kečínok ýkčuoťulŽ",
258 'ŽLUŤOUČKÝ KONÍČEK' => "KEČÍNOK ÝKČUOŤULŽ",
261 "Der eine stößt den Speer zum Mann" => "nnaM muz reepS ned tßöts enie reD"
263 foreach ($strings as $before => $after) {
264 // Make sure we can reverse it both ways and that it comes out the same.
265 $this->assertSame($after, core_text::strrev($before));
266 $this->assertSame($before, core_text::strrev($after));
267 // Reverse it twice to be doubly sure.
268 $this->assertSame($after, core_text::strrev(core_text::strrev($after)));
273 * Tests the static strpos method.
275 public function test_strpos() {
276 $str = "Žluťoučký koníček";
277 $this->assertSame(10, core_text::strpos($str, 'koníč'));
281 * Tests the static strrpos.
283 public function test_strrpos() {
284 $str = "Žluťoučký koníček";
285 $this->assertSame(11, core_text::strrpos($str, 'o'));
289 * Tests the static specialtoascii method.
291 public function test_specialtoascii() {
292 $str = "Žluťoučký koníček";
293 $this->assertSame('Zlutoucky konicek', core_text::specialtoascii($str));
297 * Tests the static encode_mimeheader method.
299 public function test_encode_mimeheader() {
300 $str = "Žluťoučký koníček";
301 $this->assertSame('=?utf-8?B?xb1sdcWlb3XEjWvDvSBrb27DrcSNZWs=?=', core_text::encode_mimeheader($str));
305 * Tests the static entities_to_utf8 method.
307 public function test_entities_to_utf8() {
308 $str = "Žluťoučký koníček©"&<>§«";
309 $this->assertSame("Žluťoučký koníček©\"&<>§«", core_text::entities_to_utf8($str));
313 * Tests the static utf8_to_entities method.
315 public function test_utf8_to_entities() {
316 $str = "Žluťoučký koníček©"&<>§«";
317 $this->assertSame("Žluťoučký koníček©"&<>§«", core_text::utf8_to_entities($str));
318 $this->assertSame("Žluťoučký koníček©"&<>§«", core_text::utf8_to_entities($str, true));
320 $str = "Žluťoučký koníček©"&<>§«";
321 $this->assertSame("Žluťoučký koníček©\"&<>§«", core_text::utf8_to_entities($str, false, true));
322 $this->assertSame("Žluťoučký koníček©\"&<>§«", core_text::utf8_to_entities($str, true, true));
326 * Tests the static trim_utf8_bom method.
328 public function test_trim_utf8_bom() {
329 $bom = "\xef\xbb\xbf";
330 $str = "Žluťoučký koníček";
331 $this->assertSame($str.$bom, core_text::trim_utf8_bom($bom.$str.$bom));
335 * Tests the static get_encodings method.
337 public function test_get_encodings() {
338 $encodings = core_text::get_encodings();
339 $this->assertTrue(is_array($encodings));
340 $this->assertTrue(count($encodings) > 1);
341 $this->assertTrue(isset($encodings['UTF-8']));
345 * Tests the static code2utf8 method.
347 public function test_code2utf8() {
348 $this->assertSame('Ž', core_text::code2utf8(381));
352 * Tests the static utf8ord method.
354 public function test_utf8ord() {
355 $this->assertSame(ord(''), core_text::utf8ord(''));
356 $this->assertSame(ord('f'), core_text::utf8ord('f'));
357 $this->assertSame(0x03B1, core_text::utf8ord('α'));
358 $this->assertSame(0x0439, core_text::utf8ord('й'));
359 $this->assertSame(0x2FA1F, core_text::utf8ord(''));
360 $this->assertSame(381, core_text::utf8ord('Ž'));
364 * Tests the static strtotitle method.
366 public function test_strtotitle() {
367 $str = "žluťoučký koníček";
368 $this->assertSame("Žluťoučký Koníček", core_text::strtotitle($str));
371 public function test_deprecated_textlib() {
372 $this->assertSame(textlib::strtolower('HUH'), core_text::strtolower('HUH'));
373 $this->assertDebuggingCalled(null, null, 'This fails if any other test uses the deprecated textlib class.');
377 * Tests the deprecated method of textlib that still require an instance.
379 public function test_deprecated_textlib_get_instance() {
380 $textlib = textlib_get_instance();
381 $this->assertDebuggingCalled();
382 $this->assertSame($textlib->substr('abc', 1, 1), 'b');
383 $this->assertSame($textlib->strlen('abc'), 3);
384 $this->assertSame($textlib->strtoupper('Abc'), 'ABC');
385 $this->assertSame($textlib->strtolower('Abc'), 'abc');
386 $this->assertSame($textlib->strpos('abc', 'a'), 0);
387 $this->assertSame($textlib->strpos('abc', 'd'), false);
388 $this->assertSame($textlib->strrpos('abcabc', 'a'), 3);
389 $this->assertSame($textlib->specialtoascii('ábc'), 'abc');
390 $this->assertSame($textlib->strtotitle('abc ABC'), 'Abc Abc');
396 public function test_strrchr() {
397 $str = "Žluťoučký koníček";
398 $this->assertSame('koníček', core_text::strrchr($str, 'koní'));
399 $this->assertSame('Žluťoučký ', core_text::strrchr($str, 'koní', true));
400 $this->assertFalse(core_text::strrchr($str, 'A'));
401 $this->assertFalse(core_text::strrchr($str, 'ç', true));