@@ -91,7 +91,7 @@ public function testParseSeriesException($series)
9191        Parser::parseSeries ($ function ->getArguments ());
9292    }
9393
94-     public  function  getParserTestData ()
94+     public  static   function  getParserTestData ()
9595    {
9696        return  [
9797            ['* ' , ['Element[*] ' ]],
@@ -149,7 +149,7 @@ public function getParserTestData()
149149        ];
150150    }
151151
152-     public  function  getParserExceptionTestData ()
152+     public  static   function  getParserExceptionTestData ()
153153    {
154154        return  [
155155            ['attributes(href)/html/body/a ' , SyntaxErrorException::unexpectedToken ('selector ' , new  Token (Token::TYPE_DELIMITER , '( ' , 10 ))->getMessage ()],
@@ -179,7 +179,7 @@ public function getParserExceptionTestData()
179179        ];
180180    }
181181
182-     public  function  getPseudoElementsTestData ()
182+     public  static   function  getPseudoElementsTestData ()
183183    {
184184        return  [
185185            ['foo ' , 'Element[foo] ' , '' ],
@@ -201,7 +201,7 @@ public function getPseudoElementsTestData()
201201        ];
202202    }
203203
204-     public  function  getSpecificityTestData ()
204+     public  static   function  getSpecificityTestData ()
205205    {
206206        return  [
207207            ['* ' , 0 ],
@@ -229,7 +229,7 @@ public function getSpecificityTestData()
229229        ];
230230    }
231231
232-     public  function  getParseSeriesTestData ()
232+     public  static   function  getParseSeriesTestData ()
233233    {
234234        return  [
235235            ['1n+3 ' , 1 , 3 ],
@@ -251,7 +251,7 @@ public function getParseSeriesTestData()
251251        ];
252252    }
253253
254-     public  function  getParseSeriesExceptionTestData ()
254+     public  static   function  getParseSeriesExceptionTestData ()
255255    {
256256        return  [
257257            ['foo ' ],
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