MediaWiki REL1_32
JavaScriptMinifierTest.php
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1<?php
2
3class JavaScriptMinifierTest extends PHPUnit\Framework\TestCase {
4
5 use MediaWikiCoversValidator;
6
7 protected function tearDown() {
8 parent::tearDown();
9 // Reset
10 $this->setMaxLineLength( 1000 );
11 }
12
13 private function setMaxLineLength( $val ) {
14 $classReflect = new ReflectionClass( JavaScriptMinifier::class );
15 $propertyReflect = $classReflect->getProperty( 'maxLineLength' );
16 $propertyReflect->setAccessible( true );
17 $propertyReflect->setValue( JavaScriptMinifier::class, $val );
18 }
19
20 public static function provideCases() {
21 return [
22
23 // Basic whitespace and comments that should be stripped entirely
24 [ "\r\t\f \v\n\r", "" ],
25 [ "/* Foo *\n*bar\n*/", "" ],
26
32 [
33 "/**\n * Foo\n * {\n * 'bar' : {\n * "
34 . "//Multiple rules with configurable operators\n * 'baz' : false\n * }\n */",
35 "" ],
36
41 [
42 "' Foo \\' bar \\\n baz \\' quox ' .length",
43 "' Foo \\' bar \\\n baz \\' quox '.length"
44 ],
45 [
46 "\" Foo \\\" bar \\\n baz \\\" quox \" .length",
47 "\" Foo \\\" bar \\\n baz \\\" quox \".length"
48 ],
49 [ "// Foo b/ar baz", "" ],
50 [
51 "/ Foo \\/ bar [ / \\] / ] baz / .length",
52 "/ Foo \\/ bar [ / \\] / ] baz /.length"
53 ],
54
55 // HTML comments
56 [ "<!-- Foo bar", "" ],
57 [ "<!-- Foo --> bar", "" ],
58 [ "--> Foo", "" ],
59 [ "x --> y", "x-->y" ],
60
61 // Semicolon insertion
62 [ "(function(){return\nx;})", "(function(){return\nx;})" ],
63 [ "throw\nx;", "throw\nx;" ],
64 [ "while(p){continue\nx;}", "while(p){continue\nx;}" ],
65 [ "while(p){break\nx;}", "while(p){break\nx;}" ],
66 [ "var\nx;", "var x;" ],
67 [ "x\ny;", "x\ny;" ],
68 [ "x\n++y;", "x\n++y;" ],
69 [ "x\n!y;", "x\n!y;" ],
70 [ "x\n{y}", "x\n{y}" ],
71 [ "x\n+y;", "x+y;" ],
72 [ "x\n(y);", "x(y);" ],
73 [ "5.\nx;", "5.\nx;" ],
74 [ "0xFF.\nx;", "0xFF.x;" ],
75 [ "5.3.\nx;", "5.3.x;" ],
76
77 // Cover failure case for incomplete hex literal
78 [ "0x;", false, false ],
79
80 // Cover failure case for number with no digits after E
81 [ "1.4E", false, false ],
82
83 // Cover failure case for number with several E
84 [ "1.4EE2", false, false ],
85 [ "1.4EE", false, false ],
86
87 // Cover failure case for number with several E (nonconsecutive)
88 // FIXME: This is invalid, but currently tolerated
89 [ "1.4E2E3", "1.4E2 E3", false ],
90
91 // Semicolon insertion between an expression having an inline
92 // comment after it, and a statement on the next line (T29046).
93 [
94 "var a = this //foo bar \n for ( b = 0; c < d; b++ ) {}",
95 "var a=this\nfor(b=0;c<d;b++){}"
96 ],
97
98 // Cover failure case of incomplete regexp at end of file (T75556)
99 // FIXME: This is invalid, but currently tolerated
100 [ "*/", "*/", false ],
101
102 // Cover failure case of incomplete char class in regexp (T75556)
103 // FIXME: This is invalid, but currently tolerated
104 [ "/a[b/.test", "/a[b/.test", false ],
105
106 // Cover failure case of incomplete string at end of file (T75556)
107 // FIXME: This is invalid, but currently tolerated
108 [ "'a", "'a", false ],
109
110 // Token separation
111 [ "x in y", "x in y" ],
112 [ "/x/g in y", "/x/g in y" ],
113 [ "x in 30", "x in 30" ],
114 [ "x + ++ y", "x+ ++y" ],
115 [ "x ++ + y", "x++ +y" ],
116 [ "x / /y/.exec(z)", "x/ /y/.exec(z)" ],
117
118 // State machine
119 [ "/ x/g", "/ x/g" ],
120 [ "(function(){return/ x/g})", "(function(){return/ x/g})" ],
121 [ "+/ x/g", "+/ x/g" ],
122 [ "++/ x/g", "++/ x/g" ],
123 [ "x/ x/g", "x/x/g" ],
124 [ "(/ x/g)", "(/ x/g)" ],
125 [ "if(/ x/g);", "if(/ x/g);" ],
126 [ "(x/ x/g)", "(x/x/g)" ],
127 [ "([/ x/g])", "([/ x/g])" ],
128 [ "+x/ x/g", "+x/x/g" ],
129 [ "{}/ x/g", "{}/ x/g" ],
130 [ "+{}/ x/g", "+{}/x/g" ],
131 [ "(x)/ x/g", "(x)/x/g" ],
132 [ "if(x)/ x/g", "if(x)/ x/g" ],
133 [ "for(x;x;{}/ x/g);", "for(x;x;{}/x/g);" ],
134 [ "x;x;{}/ x/g", "x;x;{}/ x/g" ],
135 [ "x:{}/ x/g", "x:{}/ x/g" ],
136 [ "switch(x){case y?z:{}/ x/g:{}/ x/g;}", "switch(x){case y?z:{}/x/g:{}/ x/g;}" ],
137 [ "function x(){}/ x/g", "function x(){}/ x/g" ],
138 [ "+function x(){}/ x/g", "+function x(){}/x/g" ],
139
140 // Multiline quoted string
141 [ "var foo=\"\\\nblah\\\n\";", "var foo=\"\\\nblah\\\n\";" ],
142
143 // Multiline quoted string followed by string with spaces
144 [
145 "var foo=\"\\\nblah\\\n\";\nvar baz = \" foo \";\n",
146 "var foo=\"\\\nblah\\\n\";var baz=\" foo \";"
147 ],
148
149 // URL in quoted string ( // is not a comment)
150 [
151 "aNode.setAttribute('href','http://foo.bar.org/baz');",
152 "aNode.setAttribute('href','http://foo.bar.org/baz');"
153 ],
154
155 // URL in quoted string after multiline quoted string
156 [
157 "var foo=\"\\\nblah\\\n\";\naNode.setAttribute('href','http://foo.bar.org/baz');",
158 "var foo=\"\\\nblah\\\n\";aNode.setAttribute('href','http://foo.bar.org/baz');"
159 ],
160
161 // Division vs. regex nastiness
162 [
163 "alert( (10+10) / '/'.charCodeAt( 0 ) + '//' );",
164 "alert((10+10)/'/'.charCodeAt(0)+'//');"
165 ],
166 [ "if(1)/a /g.exec('Pa ss');", "if(1)/a /g.exec('Pa ss');" ],
167
168 // Unicode letter characters should pass through ok in identifiers (T33187)
169 [ "var KaŝSkatolVal = {}", 'var KaŝSkatolVal={}' ],
170
171 // Per spec unicode char escape values should work in identifiers,
172 // as long as it's a valid char. In future it might get normalized.
173 [ "var Ka\\u015dSkatolVal = {}", 'var Ka\\u015dSkatolVal={}' ],
174
175 // Some structures that might look invalid at first sight
176 [ "var a = 5.;", "var a=5.;" ],
177 [ "5.0.toString();", "5.0.toString();" ],
178 [ "5..toString();", "5..toString();" ],
179 // Cover failure case for too many decimal points
180 [ "5...toString();", false ],
181 [ "5.\n.toString();", '5..toString();' ],
182
183 // Boolean minification (!0 / !1)
184 [ "var a = { b: true };", "var a={b:!0};" ],
185 [ "var a = { true: 12 };", "var a={true:12};", false ],
186 [ "a.true = 12;", "a.true=12;", false ],
187 [ "a.foo = true;", "a.foo=!0;" ],
188 [ "a.foo = false;", "a.foo=!1;" ],
189 ];
190 }
191
197 public function testMinifyOutput( $code, $expectedOutput, $expectedValid = true ) {
198 $minified = JavaScriptMinifier::minify( $code );
199
200 // JSMin+'s parser will throw an exception if output is not valid JS.
201 // suppression of warnings needed for stupid crap
202 if ( $expectedValid ) {
203 Wikimedia\suppressWarnings();
204 $parser = new JSParser();
205 Wikimedia\restoreWarnings();
206 $parser->parse( $minified, 'minify-test.js', 1 );
207 }
208
209 $this->assertEquals(
210 $expectedOutput,
211 $minified,
212 "Minified output should be in the form expected."
213 );
214 }
215
216 public static function provideLineBreaker() {
217 return [
218 [
219 // Regression tests for T34548.
220 // Must not break between 'E' and '+'.
221 'var name = 1.23456789E55;',
222 [
223 'var',
224 'name',
225 '=',
226 '1.23456789E55',
227 ';',
228 ],
229 ],
230 [
231 'var name = 1.23456789E+5;',
232 [
233 'var',
234 'name',
235 '=',
236 '1.23456789E+5',
237 ';',
238 ],
239 ],
240 [
241 'var name = 1.23456789E-5;',
242 [
243 'var',
244 'name',
245 '=',
246 '1.23456789E-5',
247 ';',
248 ],
249 ],
250 [
251 // Must not break before '++'
252 'if(x++);',
253 [
254 'if',
255 '(',
256 'x++',
257 ')',
258 ';',
259 ],
260 ],
261 [
262 // Regression test for T201606.
263 // Must not break between 'return' and Expression.
264 // Was caused by bad state after '{}' in property value.
265 <<<JAVASCRIPT
266 call( function () {
267 try {
268 } catch (e) {
269 obj = {
270 key: 1 ? 0 : {}
271 };
272 }
273 return name === 'input';
274 } );
275JAVASCRIPT
276 ,
277 [
278 'call',
279 '(',
280 'function',
281 '(',
282 ')',
283 '{',
284 'try',
285 '{',
286 '}',
287 'catch',
288 '(',
289 'e',
290 ')',
291 '{',
292 'obj',
293 '=',
294 '{',
295 'key',
296 ':',
297 '1',
298 '?',
299 '0',
300 ':',
301 '{',
302 '}',
303 '}',
304 ';',
305 '}',
306 // The return Statement:
307 // return [no LineTerminator here] Expression
308 'return name',
309 '===',
310 "'input'",
311 ';',
312 '}',
313 ')',
314 ';',
315 ]
316 ],
317 [
318 // Regression test for T201606.
319 // Must not break between 'return' and Expression.
320 // Was caused by bad state after a ternary in the expression value
321 // for a key in an object literal.
322 <<<JAVASCRIPT
323call( {
324 key: 1 ? 0 : function () {
325 return this;
326 }
327} );
328JAVASCRIPT
329 ,
330 [
331 'call',
332 '(',
333 '{',
334 'key',
335 ':',
336 '1',
337 '?',
338 '0',
339 ':',
340 'function',
341 '(',
342 ')',
343 '{',
344 'return this',
345 ';',
346 '}',
347 '}',
348 ')',
349 ';',
350 ]
351 ],
352 ];
353 }
354
359 public function testLineBreaker( $code, array $expectedLines ) {
360 $this->setMaxLineLength( 1 );
362 $this->assertEquals(
363 array_merge( [ '' ], $expectedLines ),
364 explode( "\n", $actual )
365 );
366 }
367}
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for use
testMinifyOutput( $code, $expectedOutput, $expectedValid=true)
provideCases JavaScriptMinifier::minify JavaScriptMinifier::parseError
testLineBreaker( $code, array $expectedLines)
provideLineBreaker JavaScriptMinifier::minify
static minify( $s)
Returns minified JavaScript code.
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Definition hooks.txt:2214
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Definition hooks.txt:12
processing should stop and the error should be shown to the user * false
Definition hooks.txt:187
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition injection.txt:37
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