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arrayKeyFirst.php
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68 lines (64 loc) · 1.36 KB
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<?php
/**
* @group compat
*
* @covers ::array_key_first
*/
class Tests_Compat_arrayKeyFirst extends WP_UnitTestCase {
/**
* Test that array_key_first() is always available (either from PHP or WP).
* @ticket 45055
*/
public function test_array_key_first_availability() {
$this->assertTrue( function_exists( 'array_key_first' ) );
}
/**
* @dataProvider data_array_key_first
*
* @ticket 45055
*
* @param bool $expected The value of the key extracted to extracted from given array.
* @param array $arr The array to get first key from.
*/
public function test_array_key_first( $expected, $arr ) {
$this->assertSame( $expected, array_key_first( $arr ) );
}
/**
* Data provider.
*
* @return array[]
*/
public function data_array_key_first() {
return array(
'string key' => array(
'expected' => 'key1',
'arr' => array(
'key1' => 'val1',
'key2' => 'val2',
),
),
'int key' => array(
'expected' => 99,
'arr' => array(
99 => 'val1',
1 => 'val2',
),
),
'no key' => array(
'expected' => 0,
'arr' => array( 'val1', 'val2' ),
),
'multi array' => array(
'expected' => 99,
'arr' => array(
99 => array( 22 => 'val1' ),
1 => 'val2',
),
),
'empty array' => array(
'expected' => null,
'arr' => array(),
),
);
}
}