LexerTest - Code Metrics - php-school/psx - Measure and Improve Code Quality continuously with Scrutinizer

LexerTest A
last analyzed 2016-03-30 21:40 UTC

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	298
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	5

Importance

Changes	2
Bugs	2	Features	0

Metric	Value
wmc	14
c	2
b	2
f	0
lcom	1
cbo	5
dl	0
loc	298
rs	10

9 Methods

Rating	Name	Size	Complexity
A	getLexer()	4	1
A	testError()	17	3
A	provideTestError()	8	1
A	testLex()	13	2
B	provideTestLex()	184	1
A	testHandleHaltCompiler()	11	2
A	provideTestHaltCompiler()	10	1
A	testHandleHaltCompilerError()	9	2
A	testGetTokens()	17	1

<?php

namespace PhpSchool\PSXTest;

use PhpParser\Comment;
use PhpParser\Error;
use PhpParser\Parser\Tokens;
use PhpSchool\PSX\Lexer;
use PHPUnit_Framework_TestCase;

/**
 * Class LexerTest
 * @package PhpSchool\PSXTest
 * @author Aydin Hassan <[email protected]>
 */
class LexerTest extends PHPUnit_Framework_TestCase
{
    /* To allow overwriting in parent class */
    protected function getLexer(array $options = array())
    {
        return new Lexer($options);
    }

    /**
     * @dataProvider provideTestError
     */
    public function testError($code, $message)
    {
        if (defined('HHVM_VERSION')) {
            $this->markTestSkipped('HHVM does not throw warnings from token_get_all()');
        }

        $lexer = $this->getLexer();
        try {
            $lexer->startLexing($code);
        } catch (Error $e) {
            $this->assertSame($message, $e->getMessage());

            return;
        }

        $this->fail('Expected PhpParser\Error');
    }

    public function provideTestError()
    {
        return array(
            array('<?php /*', 'Unterminated comment on line 1'),
            array('<?php ' . "\1", 'Unexpected character "' . "\1" . '" (ASCII 1) on unknown line'),
            array('<?php ' . "\0", 'Unexpected null byte on unknown line'),
        );
    }

    /**
     * @dataProvider provideTestLex
     */
    public function testLex($code, $options, $tokens)
    {
        $lexer = $this->getLexer($options);
        $lexer->startLexing($code);
        while ($id = $lexer->getNextToken($value, $startAttributes, $endAttributes)) {
            $token = array_shift($tokens);

            $this->assertSame($token[0], $id);
            $this->assertSame($token[1], $value);
            $this->assertEquals($token[2], $startAttributes);
            $this->assertEquals($token[3], $endAttributes);
        }
    }

    public function provideTestLex()
    {
        return array(
            // tests conversion of closing PHP tag and drop of whitespace and opening tags
            array(
                '<?php tokens ?>plaintext',
                array(),
                array(
                    array(
                        Tokens::T_STRING, 'tokens',
                        array('startLine' => 1), array('endLine' => 1)
                    ),
                    array(
                        ord(';'), '?>',
                        array('startLine' => 1), array('endLine' => 1)
                    ),
                    array(
                        Tokens::T_INLINE_HTML, 'plaintext',
                        array('startLine' => 1), array('endLine' => 1)
                    ),
                )
            ),
            // tests line numbers
            array(
                '<?php' . "\n" . '$ token /** doc' . "\n" . 'comment */ $',
                array(),
                array(
                    array(
                        ord('$'), '$',
                        array('startLine' => 2), array('endLine' => 2)
                    ),
                    array(
                        Tokens::T_STRING, 'token',
                        array('startLine' => 2), array('endLine' => 2)
                    ),
                    array(
                        ord('$'), '$',
                        array(
                            'startLine' => 3,
                            'comments' => array(new Comment\Doc('/** doc' . "\n" . 'comment */', 2))
                        ),
                        array('endLine' => 3)
                    ),
                )
            ),
            // tests comment extraction
            array(
                '<?php /* comment */ // comment' . "\n" . '/** docComment 1 *//** docComment 2 */ token',
                array(),
                array(
                    array(
                        Tokens::T_STRING, 'token',
                        array(
                            'startLine' => 2,
                            'comments' => array(
                                new Comment('/* comment */', 1),
                                new Comment('// comment' . "\n", 1),
                                new Comment\Doc('/** docComment 1 */', 2),
                                new Comment\Doc('/** docComment 2 */', 2),
                            ),
                        ),
                        array('endLine' => 2)
                    ),
                )
            ),
            // tests differing start and end line
            array(
                '<?php "foo' . "\n" . 'bar"',
                array(),
                array(
                    array(
                        Tokens::T_CONSTANT_ENCAPSED_STRING, '"foo' . "\n" . 'bar"',
                        array('startLine' => 1), array('endLine' => 2, 'originalValue' => "\"foo\nbar\"")
                    ),
                )
            ),
            // tests exact file offsets
            array(
                '<?php "a";' . "\n" . '// foo' . "\n" . '"b";',
                array('usedAttributes' => array('startFilePos', 'endFilePos')),
                array(
                    array(
                        Tokens::T_CONSTANT_ENCAPSED_STRING, '"a"',
                        array('startFilePos' => 6), array('endFilePos' => 8, 'originalValue' => '"a"')
                    ),
                    array(
                        ord(';'), ';',
                        array('startFilePos' => 9), array('endFilePos' => 9)
                    ),
                    array(
                        Tokens::T_CONSTANT_ENCAPSED_STRING, '"b"',
                        array('startFilePos' => 18), array('endFilePos' => 20, 'originalValue' => '"b"')
                    ),
                    array(
                        ord(';'), ';',
                        array('startFilePos' => 21), array('endFilePos' => 21)
                    ),
                )
            ),
            // tests token offsets
            array(
                '<?php "a";' . "\n" . '// foo' . "\n" . '"b";',
                array('usedAttributes' => array('startTokenPos', 'endTokenPos')),
                array(
                    array(
                        Tokens::T_CONSTANT_ENCAPSED_STRING, '"a"',
                        array('startTokenPos' => 1), array('endTokenPos' => 1, 'originalValue' => '"a"')
                    ),
                    array(
                        ord(';'), ';',
                        array('startTokenPos' => 2), array('endTokenPos' => 2)
                    ),
                    array(
                        Tokens::T_CONSTANT_ENCAPSED_STRING, '"b"',
                        array('startTokenPos' => 5), array('endTokenPos' => 5, 'originalValue' => '"b"')
                    ),
                    array(
                        ord(';'), ';',
                        array('startTokenPos' => 6), array('endTokenPos' => 6)
                    ),
                )
            ),
            // tests all attributes being disabled
            array(
                '<?php /* foo */ $bar;',
                array('usedAttributes' => array()),
                array(
                    array(
                        Tokens::T_VARIABLE, '$bar',
                        array(), array()
                    ),
                    array(
                        ord(';'), ';',
                        array(), array()
                    )
                )
            ),
            // test traditional array syntax
            array(
                '<?php $bar = array();',
                array('usedAttributes' => array()),
                array(
                    array(
                        Tokens::T_VARIABLE, '$bar',
                        array(), array()
                    ),
                    array(
                        ord('='), '=',
                        array(), array()
                    ),
                    array(
                        Tokens::T_ARRAY, 'array',
                        array('traditionalArray' => true), array()
                    ),
                    array(
                        ord('('), '(',
                        array(), array()
                    ),
                    array(
                        ord(')'), ')',
                        array(), array()
                    ),
                    array(
                        ord(';'), ';',
                        array(), array()
                    )
                )
            ),
            array(
                '<?php die;',
                array('usedAttributes' => array()),
                array(
                    array(
                        Tokens::T_EXIT, 'die',
                        array('isDie' => true), array()
                    ),
                    array(
                        ord(';'), ';',
                        array(), array()
                    )
                )
            )
        );
    }

    /**
     * @dataProvider provideTestHaltCompiler
     */
    public function testHandleHaltCompiler($code, $remaining)
    {
        $lexer = $this->getLexer();
        $lexer->startLexing($code);

        while (Tokens::T_HALT_COMPILER !== $lexer->getNextToken()) {

        }

        $this->assertSame($remaining, $lexer->handleHaltCompiler());
        $this->assertSame(0, $lexer->getNextToken());
    }

    public function provideTestHaltCompiler()
    {
        return array(
            array('<?php ... __halt_compiler();Remaining Text', 'Remaining Text'),
            array('<?php ... __halt_compiler ( ) ;Remaining Text', 'Remaining Text'),
            array('<?php ... __halt_compiler() ?>Remaining Text', 'Remaining Text'),
            //array('<?php ... __halt_compiler();' . "\0", "\0"),

            //array('<?php ... __halt_compiler /* */ ( ) ;Remaining Text', 'Remaining Text'),

        );
    }

    /**
     * @expectedException \PhpParser\Error
     * @expectedExceptionMessage __HALT_COMPILER must be followed by "();"
     */
    public function testHandleHaltCompilerError()
    {
        $lexer = $this->getLexer();
        $lexer->startLexing('<?php ... __halt_compiler invalid ();');

        while (Tokens::T_HALT_COMPILER !== $lexer->getNextToken()) {

        }
        $lexer->handleHaltCompiler();
    }

    public function testGetTokens()
    {
        $code = '<?php "a";' . "\n" . '// foo' . "\n" . '"b";';
        $expectedTokens = array(
            array(T_OPEN_TAG, '<?php ', 1),
            array(T_CONSTANT_ENCAPSED_STRING, '"a"', 1),
            ';',
            array(T_WHITESPACE, "\n", 1),
            array(T_COMMENT, '// foo' . "\n", 2),
            array(T_CONSTANT_ENCAPSED_STRING, '"b"', 3),
            ';',
        );

        $lexer = $this->getLexer();
        $lexer->startLexing($code);
        $this->assertSame($expectedTokens, $lexer->getTokens());
    }
}


1			<?php
2
3			namespace PhpSchool\PSXTest;
4
5			use PhpParser\Comment;
6			use PhpParser\Error;
7			use PhpParser\Parser\Tokens;
8			use PhpSchool\PSX\Lexer;
9			use PHPUnit_Framework_TestCase;
10
11			/**
12			* Class LexerTest
13			* @package PhpSchool\PSXTest
14			* @author Aydin Hassan <[email protected]>
15			*/
16			class LexerTest extends PHPUnit_Framework_TestCase
17			{
18			/* To allow overwriting in parent class */
19			protected function getLexer(array $options = array())
20			{
21			return new Lexer($options);
22			}
23
24			/**
25			* @dataProvider provideTestError
26			*/
27			public function testError($code, $message)
28			{
29			if (defined('HHVM_VERSION')) {
30			$this->markTestSkipped('HHVM does not throw warnings from token_get_all()');
31			}
32
33			$lexer = $this->getLexer();
34			try {
35			$lexer->startLexing($code);
36			} catch (Error $e) {
37			$this->assertSame($message, $e->getMessage());
38
39			return;
40			}
41
42			$this->fail('Expected PhpParser\Error');
43			}
44
45			public function provideTestError()
46			{
47			return array(
48			array('<?php /*', 'Unterminated comment on line 1'),
49			array('<?php ' . "\1", 'Unexpected character "' . "\1" . '" (ASCII 1) on unknown line'),
50			array('<?php ' . "\0", 'Unexpected null byte on unknown line'),
51			);
52			}
53
54			/**
55			* @dataProvider provideTestLex
56			*/
57			public function testLex($code, $options, $tokens)
58			{
59			$lexer = $this->getLexer($options);
60			$lexer->startLexing($code);
61			while ($id = $lexer->getNextToken($value, $startAttributes, $endAttributes)) {
62			$token = array_shift($tokens);
63
64			$this->assertSame($token[0], $id);
65			$this->assertSame($token[1], $value);
66			$this->assertEquals($token[2], $startAttributes);
67			$this->assertEquals($token[3], $endAttributes);
68			}
69			}
70
71			public function provideTestLex()
72			{
73			return array(
74			// tests conversion of closing PHP tag and drop of whitespace and opening tags
75			array(
76			'<?php tokens ?>plaintext',
77			array(),
78			array(
79			array(
80			Tokens::T_STRING, 'tokens',
81			array('startLine' => 1), array('endLine' => 1)
82			),
83			array(
84			ord(';'), '?>',
85			array('startLine' => 1), array('endLine' => 1)
86			),
87			array(
88			Tokens::T_INLINE_HTML, 'plaintext',
89			array('startLine' => 1), array('endLine' => 1)
90			),
91			)
92			),
93			// tests line numbers
94			array(
95			'<?php' . "\n" . '$ token /** doc' . "\n" . 'comment */ $',
96			array(),
97			array(
98			array(
99			ord('$'), '$',
100			array('startLine' => 2), array('endLine' => 2)
101			),
102			array(
103			Tokens::T_STRING, 'token',
104			array('startLine' => 2), array('endLine' => 2)
105			),
106			array(
107			ord('$'), '$',
108			array(
109			'startLine' => 3,
110			'comments' => array(new Comment\Doc('/** doc' . "\n" . 'comment */', 2))
111			),
112			array('endLine' => 3)
113			),
114			)
115			),
116			// tests comment extraction
117			array(
118			'<?php /* comment / // comment' . "\n" . '/* docComment 1 //* docComment 2 */ token',
119			array(),
120			array(
121			array(
122			Tokens::T_STRING, 'token',
123			array(
124			'startLine' => 2,
125			'comments' => array(
126			new Comment('/* comment */', 1),
127			new Comment('// comment' . "\n", 1),
128			new Comment\Doc('/** docComment 1 */', 2),
129			new Comment\Doc('/** docComment 2 */', 2),
130			),
131			),
132			array('endLine' => 2)
133			),
134			)
135			),
136			// tests differing start and end line
137			array(
138			'<?php "foo' . "\n" . 'bar"',
139			array(),
140			array(
141			array(
142			Tokens::T_CONSTANT_ENCAPSED_STRING, '"foo' . "\n" . 'bar"',
143			array('startLine' => 1), array('endLine' => 2, 'originalValue' => "\"foo\nbar\"")
144			),
145			)
146			),
147			// tests exact file offsets
148			array(
149			'<?php "a";' . "\n" . '// foo' . "\n" . '"b";',
150			array('usedAttributes' => array('startFilePos', 'endFilePos')),
151			array(
152			array(
153			Tokens::T_CONSTANT_ENCAPSED_STRING, '"a"',
154			array('startFilePos' => 6), array('endFilePos' => 8, 'originalValue' => '"a"')
155			),
156			array(
157			ord(';'), ';',
158			array('startFilePos' => 9), array('endFilePos' => 9)
159			),
160			array(
161			Tokens::T_CONSTANT_ENCAPSED_STRING, '"b"',
162			array('startFilePos' => 18), array('endFilePos' => 20, 'originalValue' => '"b"')
163			),
164			array(
165			ord(';'), ';',
166			array('startFilePos' => 21), array('endFilePos' => 21)
167			),
168			)
169			),
170			// tests token offsets
171			array(
172			'<?php "a";' . "\n" . '// foo' . "\n" . '"b";',
173			array('usedAttributes' => array('startTokenPos', 'endTokenPos')),
174			array(
175			array(
176			Tokens::T_CONSTANT_ENCAPSED_STRING, '"a"',
177			array('startTokenPos' => 1), array('endTokenPos' => 1, 'originalValue' => '"a"')
178			),
179			array(
180			ord(';'), ';',
181			array('startTokenPos' => 2), array('endTokenPos' => 2)
182			),
183			array(
184			Tokens::T_CONSTANT_ENCAPSED_STRING, '"b"',
185			array('startTokenPos' => 5), array('endTokenPos' => 5, 'originalValue' => '"b"')
186			),
187			array(
188			ord(';'), ';',
189			array('startTokenPos' => 6), array('endTokenPos' => 6)
190			),
191			)
192			),
193			// tests all attributes being disabled
194			array(
195			'<?php /* foo */ $bar;',
196			array('usedAttributes' => array()),
197			array(
198			array(
199			Tokens::T_VARIABLE, '$bar',
200			array(), array()
201			),
202			array(
203			ord(';'), ';',
204			array(), array()
205			)
206			)
207			),
208			// test traditional array syntax
209			array(
210			'<?php $bar = array();',
211			array('usedAttributes' => array()),
212			array(
213			array(
214			Tokens::T_VARIABLE, '$bar',
215			array(), array()
216			),
217			array(
218			ord('='), '=',
219			array(), array()
220			),
221			array(
222			Tokens::T_ARRAY, 'array',
223			array('traditionalArray' => true), array()
224			),
225			array(
226			ord('('), '(',
227			array(), array()
228			),
229			array(
230			ord(')'), ')',
231			array(), array()
232			),
233			array(
234			ord(';'), ';',
235			array(), array()
236			)
237			)
238			),
239			array(
240			'<?php die;',
241			array('usedAttributes' => array()),
242			array(
243			array(
244			Tokens::T_EXIT, 'die',
245			array('isDie' => true), array()
246			),
247			array(
248			ord(';'), ';',
249			array(), array()
250			)
251			)
252			)
253			);
254			}
255
256			/**
257			* @dataProvider provideTestHaltCompiler
258			*/
259			public function testHandleHaltCompiler($code, $remaining)
260			{
261			$lexer = $this->getLexer();
262			$lexer->startLexing($code);
263
264			while (Tokens::T_HALT_COMPILER !== $lexer->getNextToken()) {
			0 ignored issues – show Unused Code introduced 2015-12-04 17:35 UTC by Report Bug Copy Issue Report This `while` loop is empty and can be removed. This check looks for `while` loops that have no statements or where all statements have been commented out. This may be the result of changes for debugging or the code may simply be obsolete. Consider removing the loop. Loading history...
265			}
266
267			$this->assertSame($remaining, $lexer->handleHaltCompiler());
268			$this->assertSame(0, $lexer->getNextToken());
269			}
270
271			public function provideTestHaltCompiler()
272			{
273			return array(
274			array('<?php ... __halt_compiler();Remaining Text', 'Remaining Text'),
275			array('<?php ... __halt_compiler ( ) ;Remaining Text', 'Remaining Text'),
276			array('<?php ... __halt_compiler() ?>Remaining Text', 'Remaining Text'),
277			//array('<?php ... __halt_compiler();' . "\0", "\0"),
			0 ignored issues – show Unused Code Comprehensibility introduced 2016-03-30 21:40 UTC by Report Bug Copy Issue Report `67%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
278			//array('<?php ... __halt_compiler /* */ ( ) ;Remaining Text', 'Remaining Text'),
			0 ignored issues – show Unused Code Comprehensibility introduced 2016-03-30 21:40 UTC by Report Bug Copy Issue Report `88%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
279			);
280			}
281
282			/**
283			* @expectedException \PhpParser\Error
284			* @expectedExceptionMessage __HALT_COMPILER must be followed by "();"
285			*/
286			public function testHandleHaltCompilerError()
287			{
288			$lexer = $this->getLexer();
289			$lexer->startLexing('<?php ... __halt_compiler invalid ();');
290
291			while (Tokens::T_HALT_COMPILER !== $lexer->getNextToken()) {
			0 ignored issues – show Unused Code introduced 2015-12-04 17:35 UTC by Report Bug Copy Issue Report This `while` loop is empty and can be removed. This check looks for `while` loops that have no statements or where all statements have been commented out. This may be the result of changes for debugging or the code may simply be obsolete. Consider removing the loop. Loading history...
292			}
293			$lexer->handleHaltCompiler();
294			}
295
296			public function testGetTokens()
297			{
298			$code = '<?php "a";' . "\n" . '// foo' . "\n" . '"b";';
299			$expectedTokens = array(
300			array(T_OPEN_TAG, '<?php ', 1),
301			array(T_CONSTANT_ENCAPSED_STRING, '"a"', 1),
302			';',
303			array(T_WHITESPACE, "\n", 1),
304			array(T_COMMENT, '// foo' . "\n", 2),
305			array(T_CONSTANT_ENCAPSED_STRING, '"b"', 3),
306			';',
307			);
308
309			$lexer = $this->getLexer();
310			$lexer->startLexing($code);
311			$this->assertSame($expectedTokens, $lexer->getTokens());
312			}
313			}
314

php-school / psx

LexerTest A last analyzed 2016-03-30 21:40 UTC

Complexity

Size/Duplication

Coupling/Cohesion

Importance

9 Methods

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LexerTest A
last analyzed 2016-03-30 21:40 UTC