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General: In the `is_countable()` polyfill, if the provided object implements `SimpleXMLElement` or `ResourceBundle`, consider it countable. 

Props ayeshrajans, jrf, desrosj.
Fixes #43583.

git-svn-id: https://develop.svn.wordpress.org/trunk@43220 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Sergey Biryukov 2018-05-10 17:57:38 +00:00
parent a322b9479d
commit 07feb01a80
2 changed files with 43 additions and 3 deletions
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6
src/wp-includes/compat.php
View File

@ -520,7 +520,11 @@ if ( ! function_exists( 'is_countable' ) ) {
* @return bool True if `$var` is countable, false otherwise.
*/
function is_countable( $var ) {
return ( is_array( $var ) || $var instanceof Countable );
return ( is_array( $var )
|| $var instanceof Countable
|| $var instanceof SimpleXMLElement
|| $var instanceof ResourceBundle
);
}
}

40
tests/phpunit/tests/compat.php
View File

@ -188,6 +188,8 @@ EOT;
}
/**
* Test that is_countable() is always available (either from PHP or WP).
*
* @ticket 43583
*/
function test_is_countable_availability() {
@ -200,9 +202,12 @@ EOT;
* @ticket 43583
*
* @dataProvider countable_variable_test_data
*
* @param mixed $variable Variable to check.
* @param bool $is_countable The expected return value of PHP 7.3 is_countable() function.
*/
function test_is_countable_functionality( $variable, $is_countable ) {
$this->assertEquals( is_countable( $variable ), $is_countable );
$this->assertSame( is_countable( $variable ), $is_countable );
}
/**
@ -232,6 +237,34 @@ EOT;
}
/**
* Test is_countable() polyfill for ResourceBundle.
*
* @ticket 43583
*/
function test_is_countable_ResourceBundle() {
if ( ! class_exists( 'ResourceBundle' ) ) {
$this->markTestSkipped( 'The intl extension is not loaded. ResourceBundle not tested for is_countable().' );
}
$this->assertTrue( is_countable( new ResourceBundle( 'en', null ) ) );
}
/**
* Test is_countable() polyfill for SimpleXMLElement.
*
* @ticket 43583
*/
function test_is_countable_SimpleXMLElement() {
if ( ! class_exists( 'SimpleXMLElement' ) ) {
$this->markTestSkipped( 'The xml extension is not loaded. SimpleXMLElement not tested for is_countable().' );
}
$this->assertTrue( is_countable( new SimpleXMLElement( '<xml><tag>1</tag><tag>2</tag></xml>' ) ) );
}
/**
* Test that is_iterable() is always available (either from PHP or WP).
*
* @ticket 43619
*/
function test_is_iterable_availability() {
@ -244,9 +277,12 @@ EOT;
* @ticket 43619
*
* @dataProvider iterable_variable_test_data
*
* @param mixed $variable Variable to check.
* @param bool $is_iterable The expected return value of PHP 7.1 is_iterable() function.
*/
function test_is_iterable_functionality( $variable, $is_iterable ) {
$this->assertEquals( is_iterable( $variable ), $is_iterable );
$this->assertSame( is_iterable( $variable ), $is_iterable );
}
/**