Wordpress/tests/phpunit/tests/compat.php
Sergey Biryukov 451ba4c401 General: Introduce a polyfill for is_iterable() function added in PHP 7.1.
Props jrf, schlessera, desrosj.
See #43619.

git-svn-id: https://develop.svn.wordpress.org/trunk@43036 602fd350-edb4-49c9-b593-d223f7449a82
2018-04-30 04:14:30 +00:00

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<?php
/**
* @group compat
* @group security-153
*/
class Tests_Compat extends WP_UnitTestCase {
function utf8_string_lengths() {
return array(
// string, character_length, byte_length
array( 'баба', 4, 8 ),
array( 'баб', 3, 6 ),
array( 'I am your б', 11, 12 ),
array( '1111111111', 10, 10 ),
array( '²²²²²²²²²²', 10, 20 ),
array( '', 10, 30 ),
array( '𝟜𝟜𝟜𝟜𝟜𝟜𝟜𝟜𝟜𝟜', 10, 40 ),
array( '1²𝟜𝟜𝟜', 12, 30 ),
);
}
function utf8_substrings() {
return array(
// string, start, length, character_substring, byte_substring
array( 'баба', 0, 3, 'баб', "б\xD0" ),
array( 'баба', 0, -1, 'баб', "баб\xD0" ),
array( 'баба', 1, null, 'аба', "\xB1аба" ),
array( 'баба', -3, null, 'аба', "\xB1а" ),
array( 'баба', -3, 2, 'аб', "\xB1\xD0" ),
array( 'баба', -1, 2, 'а', "\xB0" ),
array( 'I am your баба', 0, 11, 'I am your б', "I am your \xD0" ),
);
}
/**
* @dataProvider utf8_string_lengths
*/
function test_mb_strlen( $string, $expected_character_length ) {
$this->assertEquals( $expected_character_length, _mb_strlen( $string, 'UTF-8' ) );
}
/**
* @dataProvider utf8_string_lengths
*/
function test_mb_strlen_via_regex( $string, $expected_character_length ) {
_wp_can_use_pcre_u( false );
$this->assertEquals( $expected_character_length, _mb_strlen( $string, 'UTF-8' ) );
_wp_can_use_pcre_u( 'reset' );
}
/**
* @dataProvider utf8_string_lengths
*/
function test_8bit_mb_strlen( $string, $expected_character_length, $expected_byte_length ) {
$this->assertEquals( $expected_byte_length, _mb_strlen( $string, '8bit' ) );
}
/**
* @dataProvider utf8_substrings
*/
function test_mb_substr( $string, $start, $length, $expected_character_substring ) {
$this->assertEquals( $expected_character_substring, _mb_substr( $string, $start, $length, 'UTF-8' ) );
}
/**
* @dataProvider utf8_substrings
*/
function test_mb_substr_via_regex( $string, $start, $length, $expected_character_substring ) {
_wp_can_use_pcre_u( false );
$this->assertEquals( $expected_character_substring, _mb_substr( $string, $start, $length, 'UTF-8' ) );
_wp_can_use_pcre_u( 'reset' );
}
/**
* @dataProvider utf8_substrings
*/
function test_8bit_mb_substr( $string, $start, $length, $expected_character_substring, $expected_byte_substring ) {
$this->assertEquals( $expected_byte_substring, _mb_substr( $string, $start, $length, '8bit' ) );
}
function test_mb_substr_phpcore() {
/* https://github.com/php/php-src/blob/php-5.6.8/ext/mbstring/tests/mb_substr_basic.phpt */
$string_ascii = 'ABCDEF';
$string_mb = base64_decode( '5pel5pys6Kqe44OG44Kt44K544OI44Gn44GZ44CCMDEyMzTvvJXvvJbvvJfvvJjvvJnjgII=' );
$this->assertEquals( 'DEF', _mb_substr( $string_ascii, 3 ) );
$this->assertEquals( 'DEF', _mb_substr( $string_ascii, 3, 5, 'ISO-8859-1' ) );
// specific latin-1 as that is the default the core php test opporates under
$this->assertEquals( 'peacrOiqng==', base64_encode( _mb_substr( $string_mb, 2, 7, 'latin-1' ) ) );
$this->assertEquals( '6Kqe44OG44Kt44K544OI44Gn44GZ', base64_encode( _mb_substr( $string_mb, 2, 7, 'utf-8' ) ) );
/* https://github.com/php/php-src/blob/php-5.6.8/ext/mbstring/tests/mb_substr_variation1.phpt */
$start = 0;
$length = 5;
$unset_var = 10;
unset( $unset_var );
$heredoc = <<<EOT
hello world
EOT;
$inputs = array(
0,
1,
12345,
-2345,
// float data
10.5,
-10.5,
12.3456789000e10,
12.3456789000E-10,
.5,
// null data
null,
null,
// boolean data
true,
false,
true,
false,
// empty data
'',
'',
// string data
'string',
'string',
$heredoc,
// object data
new classA(),
// undefined data
@$undefined_var,
// unset data
@$unset_var,
);
$outputs = array(
'0',
'1',
'12345',
'-2345',
'10.5',
'-10.5',
'12345',
'1.234',
'0.5',
'',
'',
'1',
'',
'1',
'',
'',
'',
'strin',
'strin',
'hello',
'Class',
'',
'',
);
$iterator = 0;
foreach ( $inputs as $input ) {
$this->assertEquals( $outputs[ $iterator ], _mb_substr( $input, $start, $length ) );
$iterator++;
}
}
function test_hash_hmac_simple() {
$this->assertEquals( '140d1cb79fa12e2a31f32d35ad0a2723', _hash_hmac( 'md5', 'simple', 'key' ) );
$this->assertEquals( '993003b95758e0ac2eba451a4c5877eb1bb7b92a', _hash_hmac( 'sha1', 'simple', 'key' ) );
}
function test_hash_hmac_padding() {
$this->assertEquals( '3c1399103807cf12ec38228614416a8c', _hash_hmac( 'md5', 'simple', '65 character key 65 character key 65 character key 65 character k' ) );
$this->assertEquals( '4428826d20003e309d6c2a6515891370daf184ea', _hash_hmac( 'sha1', 'simple', '65 character key 65 character key 65 character key 65 character k' ) );
}
function test_hash_hmac_output() {
$this->assertEquals( array( 1 => '140d1cb79fa12e2a31f32d35ad0a2723' ), unpack( 'H32', _hash_hmac( 'md5', 'simple', 'key', true ) ) );
$this->assertEquals( array( 1 => '993003b95758e0ac2eba451a4c5877eb1bb7b92a' ), unpack( 'H40', _hash_hmac( 'sha1', 'simple', 'key', true ) ) );
}
function test_json_encode_decode() {
require_once( ABSPATH . WPINC . '/class-json.php' );
$json = new Services_JSON();
// Super basic test to verify Services_JSON is intact and working.
$this->assertEquals( '["foo"]', $json->encodeUnsafe( array( 'foo' ) ) );
$this->assertEquals( array( 'foo' ), $json->decode( '["foo"]' ) );
}
/**
* @ticket 43583
*/
function test_is_countable_availability() {
$this->assertTrue( function_exists( 'is_countable' ) );
}
/**
* Test is_countable() polyfill.
*
* @ticket 43583
*
* @dataProvider countable_variable_test_data
*/
function test_is_countable_functionality( $variable, $is_countable ) {
$this->assertEquals( is_countable( $variable ), $is_countable );
}
/**
* Data provider for test_is_countable_functionality().
*
* @ticket 43583
*
* @return array {
* @type array {
* @type mixed $variable Variable to check.
* @type bool $is_countable The expected return value of PHP 7.3 is_countable() function.
* }
* }
*/
public function countable_variable_test_data() {
return array(
array( true, false ),
array( new stdClass(), false ),
array( new ArrayIteratorFake(), true ),
array( new CountableFake(), true ),
array( 16, false ),
array( null, false ),
array( array( 1, 2, 3 ), true ),
array( (array) 1, true ),
array( (object) array( 'foo', 'bar', 'baz' ), false ),
);
}
/**
* @ticket 43619
*/
function test_is_iterable_availability() {
$this->assertTrue( function_exists( 'is_iterable' ) );
}
/**
* Test is_iterable() polyfill.
*
* @ticket 43619
*
* @dataProvider iterable_variable_test_data
*/
function test_is_iterable_functionality( $variable, $is_iterable ) {
$this->assertEquals( is_iterable( $variable ), $is_iterable );
}
/**
* Data provider for test_is_iterable_functionality().
*
* @ticket 43619
*
* @return array {
* @type array {
* @type mixed $variable Variable to check.
* @type bool $is_iterable The expected return value of PHP 7.1 is_iterable() function.
* }
* }
*/
public function iterable_variable_test_data() {
return array(
array( array(), true ),
array( array( 1, 2, 3 ), true ),
array( new ArrayIterator( array( 1, 2, 3 ) ), true ),
array( 1, false ),
array( 3.14, false ),
array( new stdClass(), false ),
);
}
}
/* used in test_mb_substr_phpcore */
class classA {
public function __toString() {
return 'Class A object';
}
}
class ArrayIteratorFake extends ArrayIterator {
}
class CountableFake implements Countable {
public function count() {
return 16;
}
}