✏️ Editing: BackfillNumericSeparatorTest.php Read Only

<?php
/**
 * Tests the backfilling of numeric separators to PHP < 7.4.
 *
 * @author    Greg Sherwood <gsherwood@squiz.net>
 * @copyright 2019 Squiz Pty Ltd (ABN 77 084 670 600)
 * @license   https://github.com/PHPCSStandards/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
 */

namespace PHP_CodeSniffer\Tests\Core\Tokenizers\PHP;

use PHP_CodeSniffer\Tests\Core\Tokenizers\AbstractTokenizerTestCase;
use PHP_CodeSniffer\Util\Tokens;

final class BackfillNumericSeparatorTest extends AbstractTokenizerTestCase
{

/**
     * Test that numbers using numeric separators are tokenized correctly.
     *
     * @param string $marker The comment which prefaces the target token in the test file.
     * @param string $type   The expected token type.
     * @param string $value  The expected token content.
     *
     * @dataProvider dataTestBackfill
     * @covers       PHP_CodeSniffer\Tokenizers\PHP::tokenize
     *
     * @return void
     */
    public function testBackfill($marker, $type, $value)
    {
        $tokens     = $this->phpcsFile->getTokens();
        $number     = $this->getTargetToken($marker, [T_LNUMBER, T_DNUMBER]);
        $tokenArray = $tokens[$number];

$this->assertSame(constant($type), $tokenArray['code'], 'Token tokenized as '.$tokenArray['type'].', not '.$type.' (code)');
        $this->assertSame($type, $tokenArray['type'], 'Token tokenized as '.$tokenArray['type'].', not '.$type.' (type)');
        $this->assertSame($value, $tokenArray['content']);

}//end testBackfill()

/**
     * Data provider.
     *
     * @see testBackfill()
     *
     * @return array<string, array<string, string>>
     */
    public static function dataTestBackfill()
    {
        $testHexType = 'T_LNUMBER';
        if (PHP_INT_MAX < 0xCAFEF00D) {
            $testHexType = 'T_DNUMBER';
        }

$testHexMultipleType = 'T_LNUMBER';
        if (PHP_INT_MAX < 0x42726F776E) {
            $testHexMultipleType = 'T_DNUMBER';
        }

$testIntMoreThanMaxType = 'T_LNUMBER';
        if (PHP_INT_MAX < 10223372036854775807) {
            $testIntMoreThanMaxType = 'T_DNUMBER';
        }

return [
            'decimal integer'                                            => [
                'marker' => '/* testSimpleLNumber */',
                'type'   => 'T_LNUMBER',
                'value'  => '1_000_000_000',
            ],
            'float'                                                      => [
                'marker' => '/* testSimpleDNumber */',
                'type'   => 'T_DNUMBER',
                'value'  => '107_925_284.88',
            ],
            'float, scientific notation, negative exponent with sigh'    => [
                'marker' => '/* testFloat */',
                'type'   => 'T_DNUMBER',
                'value'  => '6.674_083e-11',
            ],
            'float, scientific notation, positive exponent with sign'    => [
                'marker' => '/* testFloat2 */',
                'type'   => 'T_DNUMBER',
                'value'  => '6.674_083e+11',
            ],
            'float, scientific notation, positive exponent without sign' => [
                'marker' => '/* testFloat3 */',
                'type'   => 'T_DNUMBER',
                'value'  => '1_2.3_4e1_23',
            ],
            'hexidecimal integer/float'                                  => [
                'marker' => '/* testHex */',
                'type'   => $testHexType,
                'value'  => '0xCAFE_F00D',
            ],
            'hexidecimal integer/float with multiple underscores'        => [
                'marker' => '/* testHexMultiple */',
                'type'   => $testHexMultipleType,
                'value'  => '0x42_72_6F_77_6E',
            ],
            'hexidecimal integer'                                        => [
                'marker' => '/* testHexInt */',
                'type'   => 'T_LNUMBER',
                'value'  => '0x42_72_6F',
            ],
            'binary integer'                                             => [
                'marker' => '/* testBinary */',
                'type'   => 'T_LNUMBER',
                'value'  => '0b0101_1111',
            ],
            'octal integer'                                              => [
                'marker' => '/* testOctal */',
                'type'   => 'T_LNUMBER',
                'value'  => '0137_041',
            ],
            'octal integer using explicit octal notation'                => [
                'marker' => '/* testExplicitOctal */',
                'type'   => 'T_LNUMBER',
                'value'  => '0o137_041',
            ],
            'octal integer using explicit octal notation with capital O' => [
                'marker' => '/* testExplicitOctalCapitalised */',
                'type'   => 'T_LNUMBER',
                'value'  => '0O137_041',
            ],
            'integer more than PHP_INT_MAX becomes a float'              => [
                'marker' => '/* testIntMoreThanMax */',
                'type'   => $testIntMoreThanMaxType,
                'value'  => '10_223_372_036_854_775_807',
            ],
        ];

}//end dataTestBackfill()

/**
     * Test that numbers using numeric separators which are considered parse errors and/or
     * which aren't relevant to the backfill, do not incorrectly trigger the backfill anyway.
     *
     * @param string                           $testMarker     The comment which prefaces the target token in the test file.
     * @param array<array<string, int|string>> $expectedTokens The token type and content of the expected token sequence.
     *
     * @dataProvider dataNoBackfill
     * @covers       PHP_CodeSniffer\Tokenizers\PHP::tokenize
     *
     * @return void
     */
    public function testNoBackfill($testMarker, $expectedTokens)
    {
        $tokens = $this->phpcsFile->getTokens();
        $number = $this->getTargetToken($testMarker, [T_LNUMBER, T_DNUMBER]);

foreach ($expectedTokens as $key => $expectedToken) {
            $i = ($number + $key);
            $this->assertSame(
                $expectedToken['code'],
                $tokens[$i]['code'],
                'Token tokenized as '.Tokens::tokenName($tokens[$i]['code']).', not '.Tokens::tokenName($expectedToken['code'])
            );
            $this->assertSame($expectedToken['content'], $tokens[$i]['content']);
        }

}//end testNoBackfill()

/**
     * Data provider.
     *
     * @see testBackfill()
     *
     * @return array<string, array<string, string|array<array<string, int|string>>>>
     */
    public static function dataNoBackfill()
    {
        return [
            'invalid: trailing underscore'                                      => [
                'testMarker'     => '/* testInvalid1 */',
                'expectedTokens' => [
                    [
                        'code'    => T_LNUMBER,
                        'content' => '100',
                    ],
                    [
                        'code'    => T_STRING,
                        'content' => '_',
                    ],
                ],
            ],
            'invalid: two consecutive underscores'                              => [
                'testMarker'     => '/* testInvalid2 */',
                'expectedTokens' => [
                    [
                        'code'    => T_LNUMBER,
                        'content' => '1',
                    ],
                    [
                        'code'    => T_STRING,
                        'content' => '__1',
                    ],
                ],
            ],
            'invalid: underscore directly before decimal point'                 => [
                'testMarker'     => '/* testInvalid3 */',
                'expectedTokens' => [
                    [
                        'code'    => T_LNUMBER,
                        'content' => '1',
                    ],
                    [
                        'code'    => T_STRING,
                        'content' => '_',
                    ],
                    [
                        'code'    => T_DNUMBER,
                        'content' => '.0',
                    ],
                ],
            ],
            'invalid: underscore directly after decimal point'                  => [
                'testMarker'     => '/* testInvalid4 */',
                'expectedTokens' => [
                    [
                        'code'    => T_DNUMBER,
                        'content' => '1.',
                    ],
                    [
                        'code'    => T_STRING,
                        'content' => '_0',
                    ],
                ],
            ],
            'invalid: hex int - underscore directly after x'                    => [
                'testMarker'     => '/* testInvalid5 */',
                'expectedTokens' => [
                    [
                        'code'    => T_LNUMBER,
                        'content' => '0',
                    ],
                    [
                        'code'    => T_STRING,
                        'content' => 'x_123',
                    ],
                ],
            ],
            'invalid: binary int - underscore directly after b'                 => [
                'testMarker'     => '/* testInvalid6 */',
                'expectedTokens' => [
                    [
                        'code'    => T_LNUMBER,
                        'content' => '0',
                    ],
                    [
                        'code'    => T_STRING,
                        'content' => 'b_101',
                    ],
                ],
            ],
            'invalid: scientific float - underscore directly before e'          => [
                'testMarker'     => '/* testInvalid7 */',
                'expectedTokens' => [
                    [
                        'code'    => T_LNUMBER,
                        'content' => '1',
                    ],
                    [
                        'code'    => T_STRING,
                        'content' => '_e2',
                    ],
                ],
            ],
            'invalid: scientific float - underscore directly after e'           => [
                'testMarker'     => '/* testInvalid8 */',
                'expectedTokens' => [
                    [
                        'code'    => T_LNUMBER,
                        'content' => '1',
                    ],
                    [
                        'code'    => T_STRING,
                        'content' => 'e_2',
                    ],
                ],
            ],
            'invalid: space between parts of the number'                        => [
                'testMarker'     => '/* testInvalid9 */',
                'expectedTokens' => [
                    [
                        'code'    => T_LNUMBER,
                        'content' => '107_925_284',
                    ],
                    [
                        'code'    => T_WHITESPACE,
                        'content' => ' ',
                    ],
                    [
                        'code'    => T_DNUMBER,
                        'content' => '.88',
                    ],
                ],
            ],
            'invalid: comment within the number'                                => [
                'testMarker'     => '/* testInvalid10 */',
                'expectedTokens' => [
                    [
                        'code'    => T_LNUMBER,
                        'content' => '107_925_284',
                    ],
                    [
                        'code'    => T_COMMENT,
                        'content' => '/*comment*/',
                    ],
                    [
                        'code'    => T_DNUMBER,
                        'content' => '.88',
                    ],
                ],
            ],
            'invalid: explicit octal int - underscore directly after o'         => [
                'testMarker'     => '/* testInvalid11 */',
                'expectedTokens' => [
                    [
                        'code'    => T_LNUMBER,
                        'content' => '0',
                    ],
                    [
                        'code'    => T_STRING,
                        'content' => 'o_137',
                    ],
                ],
            ],
            'invalid: explicit octal int - underscore directly after capital O' => [
                'testMarker'     => '/* testInvalid12 */',
                'expectedTokens' => [
                    [
                        'code'    => T_LNUMBER,
                        'content' => '0',
                    ],
                    [
                        'code'    => T_STRING,
                        'content' => 'O_41',
                    ],
                ],
            ],
            'calculations should be untouched - int - int'                      => [
                'testMarker'     => '/* testCalc1 */',
                'expectedTokens' => [
                    [
                        'code'    => T_LNUMBER,
                        'content' => '667_083',
                    ],
                    [
                        'code'    => T_WHITESPACE,
                        'content' => ' ',
                    ],
                    [
                        'code'    => T_MINUS,
                        'content' => '-',
                    ],
                    [
                        'code'    => T_WHITESPACE,
                        'content' => ' ',
                    ],
                    [
                        'code'    => T_LNUMBER,
                        'content' => '11',
                    ],
                ],
            ],
            'calculations should be untouched - scientific float + int'         => [
                'testMarker'     => '/* test Calc2 */',
                'expectedTokens' => [
                    [
                        'code'    => T_DNUMBER,
                        'content' => '6.674_08e3',
                    ],
                    [
                        'code'    => T_WHITESPACE,
                        'content' => ' ',
                    ],
                    [
                        'code'    => T_PLUS,
                        'content' => '+',
                    ],
                    [
                        'code'    => T_WHITESPACE,
                        'content' => ' ',
                    ],
                    [
                        'code'    => T_LNUMBER,
                        'content' => '11',
                    ],
                ],
            ],
        ];

}//end dataNoBackfill()

}//end class

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