<?php

/**
 * @group functions
 */
class Tests_Functions extends WP_UnitTestCase {
	public function test_wp_parse_args_object() {
		$x        = new MockClass();
		$x->_baba = 5;
		$x->yZ    = 'baba'; // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
		$x->a     = array( 5, 111, 'x' );
		$this->assertSame(
			array(
				'_baba' => 5,
				'yZ'    => 'baba',
				'a'     => array( 5, 111, 'x' ),
			),
			wp_parse_args( $x )
		);
		$y = new MockClass();
		$this->assertSame( array(), wp_parse_args( $y ) );
	}

	public function test_wp_parse_args_array() {
		// Arrays.
		$a = array();
		$this->assertSame( array(), wp_parse_args( $a ) );
		$b = array(
			'_baba' => 5,
			'yZ'    => 'baba',
			'a'     => array( 5, 111, 'x' ),
		);
		$this->assertSame(
			array(
				'_baba' => 5,
				'yZ'    => 'baba',
				'a'     => array( 5, 111, 'x' ),
			),
			wp_parse_args( $b )
		);
	}

	public function test_wp_parse_args_defaults() {
		$x        = new MockClass();
		$x->_baba = 5;
		$x->yZ    = 'baba'; // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
		$x->a     = array( 5, 111, 'x' );
		$d        = array( 'pu' => 'bu' );
		$this->assertSame(
			array(
				'pu'    => 'bu',
				'_baba' => 5,
				'yZ'    => 'baba',
				'a'     => array( 5, 111, 'x' ),
			),
			wp_parse_args( $x, $d )
		);
		$e = array( '_baba' => 6 );
		$this->assertSame(
			array(
				'_baba' => 5,
				'yZ'    => 'baba',
				'a'     => array( 5, 111, 'x' ),
			),
			wp_parse_args( $x, $e )
		);
	}

	public function test_wp_parse_args_other() {
		$b = true;
		wp_parse_str( $b, $s );
		$this->assertSame( $s, wp_parse_args( $b ) );
		$q = 'x=5&_baba=dudu&';
		wp_parse_str( $q, $ss );
		$this->assertSame( $ss, wp_parse_args( $q ) );
	}

	/**
	 * @ticket 30753
	 */
	public function test_wp_parse_args_boolean_strings() {
		$args = wp_parse_args( 'foo=false&bar=true' );
		$this->assertIsString( $args['foo'] );
		$this->assertIsString( $args['bar'] );
	}

	/**
	 * @ticket 35972
	 */
	public function test_bool_from_yn() {
		$this->assertTrue( bool_from_yn( 'Y' ) );
		$this->assertTrue( bool_from_yn( 'y' ) );
		$this->assertFalse( bool_from_yn( 'n' ) );
	}

	public function test_path_is_absolute() {
		$absolute_paths = array(
			'/',
			'/foo/',
			'/foo',
			'/FOO/bar',
			'/foo/bar/',
			'/foo/../bar/',
			'\\WINDOWS',
			'C:\\',
			'C:\\WINDOWS',
			'\\\\sambashare\\foo',
		);
		foreach ( $absolute_paths as $path ) {
			$this->assertTrue( path_is_absolute( $path ), "path_is_absolute('$path') should return true" );
		}
	}

	public function test_path_is_not_absolute() {
		$relative_paths = array(
			'',
			'.',
			'..',
			'../foo',
			'../',
			'../foo.bar',
			'foo/bar',
			'foo',
			'FOO',
			'..\\WINDOWS',
		);
		foreach ( $relative_paths as $path ) {
			$this->assertFalse( path_is_absolute( $path ), "path_is_absolute('$path') should return false" );
		}
	}

	/**
	 * Tests path_join().
	 *
	 * @ticket 55897
	 * @dataProvider data_path_join
	 */
	public function test_path_join( $base, $path, $expected ) {
		$this->assertSame( $expected, path_join( $base, $path ) );
	}

	/**
	 * Data provider for test_path_join().
	 *
	 * @return string[][]
	 */
	public function data_path_join() {
		return array(
			// Absolute paths.
			'absolute path should return path' => array(
				'base'     => 'base',
				'path'     => '/path',
				'expected' => '/path',
			),
			'windows path with slashes'        => array(
				'base'     => 'base',
				'path'     => '//path',
				'expected' => '//path',
			),
			'windows path with backslashes'    => array(
				'base'     => 'base',
				'path'     => '\\\\path',
				'expected' => '\\\\path',
			),
			// Non-absolute paths.
			'join base and path'               => array(
				'base'     => 'base',
				'path'     => 'path',
				'expected' => 'base/path',
			),
			'strip trailing slashes in base'   => array(
				'base'     => 'base///',
				'path'     => 'path',
				'expected' => 'base/path',
			),
			'empty path'                       => array(
				'base'     => 'base',
				'path'     => '',
				'expected' => 'base/',
			),
			'empty base'                       => array(
				'base'     => '',
				'path'     => 'path',
				'expected' => '/path',
			),
			'empty path and base'              => array(
				'base'     => '',
				'path'     => '',
				'expected' => '/',
			),
		);
	}

	/**
	 * @ticket 33265
	 * @ticket 35996
	 *
	 * @dataProvider data_wp_normalize_path
	 */
	public function test_wp_normalize_path( $path, $expected ) {
		$this->assertSame( $expected, wp_normalize_path( $path ) );
	}

	public function data_wp_normalize_path() {
		return array(
			// Windows paths.
			array( 'C:\\www\\path\\', 'C:/www/path/' ),
			array( 'C:\\www\\\\path\\', 'C:/www/path/' ),
			array( 'c:/www/path', 'C:/www/path' ),
			array( 'c:\\www\\path\\', 'C:/www/path/' ), // Uppercase drive letter.
			array( 'c:\\\\www\\path\\', 'C:/www/path/' ),
			array( '\\\\Domain\\DFSRoots\\share\\path\\', '//Domain/DFSRoots/share/path/' ),
			array( '\\\\Server\\share\\path', '//Server/share/path' ),
			array( '\\\\Server\\share', '//Server/share' ),

			// Linux paths.
			array( '/www/path/', '/www/path/' ),
			array( '/www/path/////', '/www/path/' ),
			array( '/www/path', '/www/path' ),

			// PHP stream wrappers.
			array( 'php://input', 'php://input' ),
			array( 'http://example.com//path.ext', 'http://example.com/path.ext' ),
			array( 'file://c:\\www\\path\\', 'file://C:/www/path/' ),
		);
	}

	public function test_wp_unique_filename() {

		$testdir = DIR_TESTDATA . '/images/';

		// Confidence check.
		$this->assertSame( 'abcdefg.png', wp_unique_filename( $testdir, 'abcdefg.png' ), 'Test non-existing file, file name should be unchanged.' );

		// Ensure correct images exist.
		$this->assertFileExists( $testdir . 'test-image.png', 'Test image does not exist' );
		$this->assertFileDoesNotExist( $testdir . 'test-image-1.png' );

		// Check number is appended if file already exists.
		$this->assertSame( 'test-image-1.png', wp_unique_filename( $testdir, 'test-image.png' ), 'File name not unique, number not appended.' );

		// Check file with uppercase extension.
		$this->assertSame( 'test-image-1.png', wp_unique_filename( $testdir, 'test-image.PNG' ), 'File name with uppercase extension not unique, number not appended.' );

		// Check file name with already added number.
		$this->assertSame( 'test-image-2-1.gif', wp_unique_filename( $testdir, 'test-image-2.gif' ), 'File name not unique, number not appended correctly.' );

		// Check special chars.
		$this->assertSame( 'testtest-image.png', wp_unique_filename( $testdir, 'testtést-imagé.png' ), 'Filename with special chars failed' );

		// Check special chars with potential conflicting name.
		$this->assertSame( 'test-image-1.png', wp_unique_filename( $testdir, 'tést-imagé.png' ), 'Filename with special chars failed' );

		// Check with single quotes in name (somehow).
		$this->assertSame( 'abcdefgh.png', wp_unique_filename( $testdir, "abcdefg'h.png" ), 'File with quote failed' );

		// Check with double quotes in name (somehow).
		$this->assertSame( 'abcdefgh.png', wp_unique_filename( $testdir, 'abcdefg"h.png' ), 'File with quote failed' );

		// Test crazy name (useful for regression tests).
		$this->assertSame( '12af34567890@.^_qwerty-fghjkl-zx.png', wp_unique_filename( $testdir, '12%af34567890#~!@#$..%^&*()|_+qwerty  fgh`jkl zx<>?:"{}[]="\'/?.png' ), 'Failed crazy file name' );

		// Test slashes in names.
		$this->assertSame( 'abcdefg.png', wp_unique_filename( $testdir, 'abcde\fg.png' ), 'Slash not removed' );
		$this->assertSame( 'abcdefg.png', wp_unique_filename( $testdir, 'abcde\\fg.png' ), 'Double slashed not removed' );
		$this->assertSame( 'abcdefg.png', wp_unique_filename( $testdir, 'abcde\\\fg.png' ), 'Triple slashed not removed' );
	}

	/**
	 * @ticket 42437
	 */
	public function test_unique_filename_with_dimension_like_filename() {
		$testdir = DIR_TESTDATA . '/images/';

		add_filter( 'upload_dir', array( $this, 'upload_dir_patch_basedir' ) );

		// Test collision with "dimension-like" original filename.
		$this->assertSame( 'one-blue-pixel-100x100-1.png', wp_unique_filename( $testdir, 'one-blue-pixel-100x100.png' ) );
		// Test collision with existing sub-size filename.
		// Existing files: one-blue-pixel-100x100.png, one-blue-pixel-1-100x100.png.
		$this->assertSame( 'one-blue-pixel-2.png', wp_unique_filename( $testdir, 'one-blue-pixel.png' ) );
		// Same as above with upper case extension.
		$this->assertSame( 'one-blue-pixel-2.png', wp_unique_filename( $testdir, 'one-blue-pixel.PNG' ) );

		remove_filter( 'upload_dir', array( $this, 'upload_dir_patch_basedir' ) );
	}

	// Callback to patch "basedir" when used in `wp_unique_filename()`.
	public function upload_dir_patch_basedir( $upload_dir ) {
		$upload_dir['basedir'] = DIR_TESTDATA . '/images/';
		return $upload_dir;
	}

	/**
	 * @ticket 53668
	 */
	public function test_wp_unique_filename_with_additional_image_extension() {
		$testdir = DIR_TESTDATA . '/images/';

		add_filter( 'upload_dir', array( $this, 'upload_dir_patch_basedir' ) );

		// Set conversions for uploaded images.
		add_filter( 'image_editor_output_format', array( $this, 'image_editor_output_format_handler' ) );

		// Ensure the test images exist.
		$this->assertFileExists( $testdir . 'test-image-1-100x100.jpg', 'test-image-1-100x100.jpg does not exist' );
		$this->assertFileExists( $testdir . 'test-image-2.gif', 'test-image-2.gif does not exist' );
		$this->assertFileExists( $testdir . 'test-image-3.jpg', 'test-image-3.jpg does not exist' );
		$this->assertFileExists( $testdir . 'test-image-4.png', 'test-image-4.png does not exist' );

		// Standard test: file does not exist and there are no possible intersections with other files.
		$this->assertSame(
			'abcdef.png',
			wp_unique_filename( $testdir, 'abcdef.png' ),
			'The abcdef.png, abcdef.gif, and abcdef.jpg images do not exist. The file name should not be changed.'
		);

		// Actual clash recognized.
		$this->assertSame(
			'canola-1.jpg',
			wp_unique_filename( $testdir, 'canola.jpg' ),
			'The canola.jpg image exists. The file name should be unique.'
		);

		// Same name with different extension and the image will be converted.
		$this->assertSame(
			'canola-1.png',
			wp_unique_filename( $testdir, 'canola.png' ),
			'The canola.jpg image exists. Uploading canola.png that will be converted to canola.jpg should produce unique file name.'
		);

		// Same name with different uppercase extension and the image will be converted.
		$this->assertSame(
			'canola-1.png',
			wp_unique_filename( $testdir, 'canola.PNG' ),
			'The canola.jpg image exists. Uploading canola.PNG that will be converted to canola.jpg should produce unique file name.'
		);

		// Actual clash with several images with different extensions.
		$this->assertSame(
			'test-image-5.png',
			wp_unique_filename( $testdir, 'test-image.png' ),
			'The test-image.png, test-image-1-100x100.jpg, test-image-2.gif, test-image-3.jpg, and test-image-4.png images exist.' .
			'All of them may clash when creating sub-sizes or regenerating thumbnails in the future. The filename should be unique.'
		);

		// Possible clash with regenerated thumbnails in the future.
		$this->assertSame(
			'codeispoetry-1.jpg',
			wp_unique_filename( $testdir, 'codeispoetry.jpg' ),
			'The codeispoetry.png image exists. When regenerating thumbnails for it they will be converted to JPG.' .
			'The name of the newly uploaded codeispoetry.jpg should be made unique.'
		);

		remove_filter( 'image_editor_output_format', array( $this, 'image_editor_output_format_handler' ) );
		remove_filter( 'upload_dir', array( $this, 'upload_dir_patch_basedir' ) );
	}

	/**
	 * Changes the output format when editing images. When uploading a PNG file
	 * it will be converted to JPEG, GIF to JPEG, and PICT to BMP
	 * (if the image editor in PHP supports it).
	 *
	 * @param array $formats
	 *
	 * @return array
	 */
	public function image_editor_output_format_handler( $formats ) {
		$formats['image/png'] = 'image/jpeg';
		$formats['image/gif'] = 'image/jpeg';
		$formats['image/pct'] = 'image/bmp';

		return $formats;
	}

	/**
	 * @group add_query_arg
	 */
	public function test_add_query_arg() {
		$old_req_uri = $_SERVER['REQUEST_URI'];

		$urls = array(
			'/',
			'/2012/07/30/',
			'edit.php',
			admin_url( 'edit.php' ),
			admin_url( 'edit.php', 'https' ),
		);

		$frag_urls = array(
			'/#frag',
			'/2012/07/30/#frag',
			'edit.php#frag',
			admin_url( 'edit.php#frag' ),
			admin_url( 'edit.php#frag', 'https' ),
		);

		foreach ( $urls as $url ) {
			$_SERVER['REQUEST_URI'] = 'nothing';

			$this->assertSame( "$url?foo=1", add_query_arg( 'foo', '1', $url ) );
			$this->assertSame( "$url?foo=1", add_query_arg( array( 'foo' => '1' ), $url ) );
			$this->assertSame(
				"$url?foo=2",
				add_query_arg(
					array(
						'foo' => '1',
						'foo' => '2',
					),
					$url
				)
			);
			$this->assertSame(
				"$url?foo=1&bar=2",
				add_query_arg(
					array(
						'foo' => '1',
						'bar' => '2',
					),
					$url
				)
			);

			$_SERVER['REQUEST_URI'] = $url;

			$this->assertSame( "$url?foo=1", add_query_arg( 'foo', '1' ) );
			$this->assertSame( "$url?foo=1", add_query_arg( array( 'foo' => '1' ) ) );
			$this->assertSame(
				"$url?foo=2",
				add_query_arg(
					array(
						'foo' => '1',
						'foo' => '2',
					)
				)
			);
			$this->assertSame(
				"$url?foo=1&bar=2",
				add_query_arg(
					array(
						'foo' => '1',
						'bar' => '2',
					)
				)
			);
		}

		foreach ( $frag_urls as $frag_url ) {
			$_SERVER['REQUEST_URI'] = 'nothing';
			$url                    = str_replace( '#frag', '', $frag_url );

			$this->assertSame( "$url?foo=1#frag", add_query_arg( 'foo', '1', $frag_url ) );
			$this->assertSame( "$url?foo=1#frag", add_query_arg( array( 'foo' => '1' ), $frag_url ) );
			$this->assertSame(
				"$url?foo=2#frag",
				add_query_arg(
					array(
						'foo' => '1',
						'foo' => '2',
					),
					$frag_url
				)
			);
			$this->assertSame(
				"$url?foo=1&bar=2#frag",
				add_query_arg(
					array(
						'foo' => '1',
						'bar' => '2',
					),
					$frag_url
				)
			);

			$_SERVER['REQUEST_URI'] = $frag_url;

			$this->assertSame( "$url?foo=1#frag", add_query_arg( 'foo', '1' ) );
			$this->assertSame( "$url?foo=1#frag", add_query_arg( array( 'foo' => '1' ) ) );
			$this->assertSame(
				"$url?foo=2#frag",
				add_query_arg(
					array(
						'foo' => '1',
						'foo' => '2',
					)
				)
			);
			$this->assertSame(
				"$url?foo=1&bar=2#frag",
				add_query_arg(
					array(
						'foo' => '1',
						'bar' => '2',
					)
				)
			);
		}

		$qs_urls = array(
			'baz=1', // #WP4903
			'/?baz',
			'/2012/07/30/?baz',
			'edit.php?baz',
			admin_url( 'edit.php?baz' ),
			admin_url( 'edit.php?baz', 'https' ),
			admin_url( 'edit.php?baz&za=1' ),
			admin_url( 'edit.php?baz=1&za=1' ),
			admin_url( 'edit.php?baz=0&za=0' ),
		);

		foreach ( $qs_urls as $url ) {
			$_SERVER['REQUEST_URI'] = 'nothing';

			$this->assertSame( "$url&foo=1", add_query_arg( 'foo', '1', $url ) );
			$this->assertSame( "$url&foo=1", add_query_arg( array( 'foo' => '1' ), $url ) );
			$this->assertSame(
				"$url&foo=2",
				add_query_arg(
					array(
						'foo' => '1',
						'foo' => '2',
					),
					$url
				)
			);
			$this->assertSame(
				"$url&foo=1&bar=2",
				add_query_arg(
					array(
						'foo' => '1',
						'bar' => '2',
					),
					$url
				)
			);

			$_SERVER['REQUEST_URI'] = $url;

			$this->assertSame( "$url&foo=1", add_query_arg( 'foo', '1' ) );
			$this->assertSame( "$url&foo=1", add_query_arg( array( 'foo' => '1' ) ) );
			$this->assertSame(
				"$url&foo=2",
				add_query_arg(
					array(
						'foo' => '1',
						'foo' => '2',
					)
				)
			);
			$this->assertSame(
				"$url&foo=1&bar=2",
				add_query_arg(
					array(
						'foo' => '1',
						'bar' => '2',
					)
				)
			);
		}

		$_SERVER['REQUEST_URI'] = $old_req_uri;
	}

	/**
	 * @ticket 31306
	 */
	public function test_add_query_arg_numeric_keys() {
		$url = add_query_arg( array( 'foo' => 'bar' ), '1=1' );
		$this->assertSame( '1=1&foo=bar', $url );

		$url = add_query_arg(
			array(
				'foo' => 'bar',
				'1'   => '2',
			),
			'1=1'
		);
		$this->assertSame( '1=2&foo=bar', $url );

		$url = add_query_arg( array( '1' => '2' ), 'foo=bar' );
		$this->assertSame( 'foo=bar&1=2', $url );
	}

	/**
	 * Tests that add_query_arg removes the question mark when
	 * a parameter is set to false.
	 *
	 * @dataProvider data_add_query_arg_removes_question_mark
	 *
	 * @ticket 44499
	 * @group  add_query_arg
	 *
	 * @covers ::add_query_arg
	 *
	 * @param string $url      Url to test.
	 * @param string $expected Expected URL.
	 */
	public function test_add_query_arg_removes_question_mark( $url, $expected, $key = 'param', $value = false ) {
		$this->assertSame( $expected, add_query_arg( $key, $value, $url ) );
	}

	/**
	 * Data provider.
	 *
	 * @return array
	 */
	public function data_add_query_arg_removes_question_mark() {
		return array(
			'anchor'                                     => array(
				'url'      => 'http://example.org?#anchor',
				'expected' => 'http://example.org#anchor',
			),
			'/ then anchor'                              => array(
				'url'      => 'http://example.org/?#anchor',
				'expected' => 'http://example.org/#anchor',
			),
			'invalid query param and anchor'             => array(
				'url'      => 'http://example.org?param=value#anchor',
				'expected' => 'http://example.org#anchor',
			),
			'/ then invalid query param and anchor'      => array(
				'url'      => 'http://example.org/?param=value#anchor',
				'expected' => 'http://example.org/#anchor',
			),
			'?#anchor when adding valid key/value args'  => array(
				'url'      => 'http://example.org?#anchor',
				'expected' => 'http://example.org?foo=bar#anchor',
				'key'      => 'foo',
				'value'    => 'bar',
			),
			'/?#anchor when adding valid key/value args' => array(
				'url'      => 'http://example.org/?#anchor',
				'expected' => 'http://example.org/?foo=bar#anchor',
				'key'      => 'foo',
				'value'    => 'bar',
			),
		);
	}

	/**
	 * @ticket 21594
	 */
	public function test_get_allowed_mime_types() {
		$mimes = get_allowed_mime_types();

		$this->assertIsArray( $mimes );
		$this->assertNotEmpty( $mimes );

		add_filter( 'upload_mimes', '__return_empty_array' );
		$mimes = get_allowed_mime_types();
		$this->assertIsArray( $mimes );
		$this->assertEmpty( $mimes );

		remove_filter( 'upload_mimes', '__return_empty_array' );
		$mimes = get_allowed_mime_types();
		$this->assertIsArray( $mimes );
		$this->assertNotEmpty( $mimes );
	}

	/**
	 * @ticket 21594
	 */
	public function test_wp_get_mime_types() {
		$mimes = wp_get_mime_types();

		$this->assertIsArray( $mimes );
		$this->assertNotEmpty( $mimes );

		add_filter( 'mime_types', '__return_empty_array' );
		$mimes = wp_get_mime_types();
		$this->assertIsArray( $mimes );
		$this->assertEmpty( $mimes );

		remove_filter( 'mime_types', '__return_empty_array' );
		$mimes = wp_get_mime_types();
		$this->assertIsArray( $mimes );
		$this->assertNotEmpty( $mimes );

		// 'upload_mimes' should not affect wp_get_mime_types().
		add_filter( 'upload_mimes', '__return_empty_array' );
		$mimes = wp_get_mime_types();
		$this->assertIsArray( $mimes );
		$this->assertNotEmpty( $mimes );

		remove_filter( 'upload_mimes', '__return_empty_array' );
		$mimes2 = wp_get_mime_types();
		$this->assertIsArray( $mimes2 );
		$this->assertNotEmpty( $mimes2 );
		$this->assertSame( $mimes2, $mimes );
	}

	/**
	 * @ticket 23688
	 */
	public function test_canonical_charset() {
		$orig_blog_charset = get_option( 'blog_charset' );

		update_option( 'blog_charset', 'utf8' );
		$this->assertSame( 'UTF-8', get_option( 'blog_charset' ) );

		update_option( 'blog_charset', 'utf-8' );
		$this->assertSame( 'UTF-8', get_option( 'blog_charset' ) );

		update_option( 'blog_charset', 'UTF8' );
		$this->assertSame( 'UTF-8', get_option( 'blog_charset' ) );

		update_option( 'blog_charset', 'UTF-8' );
		$this->assertSame( 'UTF-8', get_option( 'blog_charset' ) );

		update_option( 'blog_charset', 'ISO-8859-1' );
		$this->assertSame( 'ISO-8859-1', get_option( 'blog_charset' ) );

		update_option( 'blog_charset', 'ISO8859-1' );
		$this->assertSame( 'ISO-8859-1', get_option( 'blog_charset' ) );

		update_option( 'blog_charset', 'iso8859-1' );
		$this->assertSame( 'ISO-8859-1', get_option( 'blog_charset' ) );

		update_option( 'blog_charset', 'iso-8859-1' );
		$this->assertSame( 'ISO-8859-1', get_option( 'blog_charset' ) );

		// Arbitrary strings are passed through.
		update_option( 'blog_charset', 'foobarbaz' );
		$this->assertSame( 'foobarbaz', get_option( 'blog_charset' ) );

		update_option( 'blog_charset', $orig_blog_charset );
	}

	/**
	 * @dataProvider data_device_can_upload
	 */
	public function test_device_can_upload( $user_agent, $expected ) {
		$_SERVER['HTTP_USER_AGENT'] = $user_agent;
		$actual                     = _device_can_upload();
		unset( $_SERVER['HTTP_USER_AGENT'] );
		$this->assertSame( $expected, $actual );
	}

	public function data_device_can_upload() {
		return array(
			// iPhone iOS 5.0.1, Safari 5.1.
			array(
				'Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Mobile/9A406)',
				false,
			),
			// iPad iOS 3.2, Safari 4.0.4.
			array(
				'Mozilla/5.0 (iPad; U; CPU OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B334b Safari/531.21.10',
				false,
			),
			// iPod iOS 4.3.3, Safari 5.0.2.
			array(
				'Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3_3 like Mac OS X; ja-jp) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8J2 Safari/6533.18.5',
				false,
			),
			// iPhone iOS 6.0.0, Safari 6.0.
			array(
				'Mozilla/5.0 (iPhone; CPU iPhone OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25',
				true,
			),
			// iPad iOS 6.0.0, Safari 6.0.
			array(
				'Mozilla/5.0 (iPad; CPU OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25',
				true,
			),
			// Android 2.2, Android Webkit Browser.
			array(
				'Mozilla/5.0 (Android 2.2; Windows; U; Windows NT 6.1; en-US) AppleWebKit/533.19.4 (KHTML, like Gecko) Version/5.0.3 Safari/533.19.4',
				true,
			),
			// BlackBerry 9900, BlackBerry browser.
			array(
				'Mozilla/5.0 (BlackBerry; U; BlackBerry 9900; en) AppleWebKit/534.11+ (KHTML, like Gecko) Version/7.1.0.346 Mobile Safari/534.11+',
				true,
			),
			// Windows Phone 8.0, Internet Explorer 10.0.
			array(
				'Mozilla/5.0 (compatible; MSIE 10.0; Windows Phone 8.0; Trident/6.0; IEMobile/10.0; ARM; Touch; NOKIA; Lumia 920)',
				true,
			),
			// Ubuntu desktop, Firefox 41.0.
			array(
				'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:41.0) Gecko/20100101 Firefox/41.0',
				true,
			),
		);
	}

	/**
	 * @ticket 9064
	 */
	public function test_wp_extract_urls() {
		$original_urls = array(
			'http://woo.com/1,2,3,4,5,6/-1-2-3-4-/woo.html',
			'http://this.com',
			'http://127.0.0.1',
			'http://www111.urwyeoweytwutreyytqytwetowteuiiu.com/?346236346326&2134362574863.437',
			'http://wordpress-core/1,2,3,4,5,6/-1-2-3-4-/woo.html',
			'http://wordpress-core.com:8080/',
			'http://www.website.com:5000',
			'http://wordpress-core/?346236346326&2134362574863.437',
			'http://افغانستا.icom.museum',
			'http://الجزائر.icom.museum',
			'http://österreich.icom.museum',
			'http://বাংলাদেশ.icom.museum',
			'http://беларусь.icom.museum',
			'http://belgië.icom.museum',
			'http://българия.icom.museum',
			'http://تشادر.icom.museum',
			'http://中国.icom.museum',
			// 'http://القمر.icom.museum',         // Comoros http://القمر.icom.museum
			// 'http://κυπρος.icom.museum',        // Cyprus  http://κυπρος.icom.museum
			'http://českárepublika.icom.museum',
			// 'http://مصر.icom.museum',           // Egypt   http://مصر.icom.museum
			'http://ελλάδα.icom.museum',
			'http://magyarország.icom.museum',
			'http://ísland.icom.museum',
			'http://भारत.icom.museum',
			'http://ايران.icom.museum',
			'http://éire.icom.museum',
			'http://איקו״ם.ישראל.museum',
			'http://日本.icom.museum',
			'http://الأردن.icom.museum',
			'http://қазақстан.icom.museum',
			'http://한국.icom.museum',
			'http://кыргызстан.icom.museum',
			'http://ລາວ.icom.museum',
			'http://لبنان.icom.museum',
			'http://македонија.icom.museum',
			// 'http://موريتانيا.icom.museum',     // Mauritania http://موريتانيا.icom.museum
			'http://méxico.icom.museum',
			'http://монголулс.icom.museum',
			// 'http://المغرب.icom.museum',        // Morocco    http://المغرب.icom.museum
			'http://नेपाल.icom.museum',
			// 'http://عمان.icom.museum',          // Oman       http://عمان.icom.museum
			'http://قطر.icom.museum',
			'http://românia.icom.museum',
			'http://россия.иком.museum',
			'http://србијаицрнагора.иком.museum',
			'http://இலங்கை.icom.museum',
			'http://españa.icom.museum',
			'http://ไทย.icom.museum',
			'http://تونس.icom.museum',
			'http://türkiye.icom.museum',
			'http://украина.icom.museum',
			'http://việtnam.icom.museum',
			'ftp://127.0.0.1/',
			'http://www.woo.com/video?v=exvUH2qKLTU',
			'http://taco.com?burrito=enchilada#guac',
			'http://example.org/?post_type=post&p=4',
			'http://example.org/?post_type=post&p=5',
			'http://example.org/?post_type=post&p=6',
			'http://typo-in-query.org/?foo=bar&ampbaz=missing_semicolon',
		);

		$blob = '
			http://woo.com/1,2,3,4,5,6/-1-2-3-4-/woo.html

			http://this.com

			http://127.0.0.1

			http://www111.urwyeoweytwutreyytqytwetowteuiiu.com/?346236346326&amp;2134362574863.437

			http://wordpress-core/1,2,3,4,5,6/-1-2-3-4-/woo.html

			http://wordpress-core.com:8080/

			http://www.website.com:5000

			http://wordpress-core/?346236346326&amp;2134362574863.437

			http://افغانستا.icom.museum
			http://الجزائر.icom.museum
			http://österreich.icom.museum
			http://বাংলাদেশ.icom.museum
			http://беларусь.icom.museum
			http://belgië.icom.museum
			http://българия.icom.museum
			http://تشادر.icom.museum
			http://中国.icom.museum
			http://českárepublika.icom.museum
			http://ελλάδα.icom.museum
			http://magyarország.icom.museum
			http://ísland.icom.museum
			http://भारत.icom.museum
			http://ايران.icom.museum
			http://éire.icom.museum
			http://איקו״ם.ישראל.museum
			http://日本.icom.museum
			http://الأردن.icom.museum
			http://қазақстан.icom.museum
			http://한국.icom.museum
			http://кыргызстан.icom.museum
			http://ລາວ.icom.museum
			http://لبنان.icom.museum
			http://македонија.icom.museum
			http://méxico.icom.museum
			http://монголулс.icom.museum
			http://नेपाल.icom.museum
			http://قطر.icom.museum
			http://românia.icom.museum
			http://россия.иком.museum
			http://србијаицрнагора.иком.museum
			http://இலங்கை.icom.museum
			http://españa.icom.museum
			http://ไทย.icom.museum
			http://تونس.icom.museum
			http://türkiye.icom.museum
			http://украина.icom.museum
			http://việtnam.icom.museum
			ftp://127.0.0.1/
			http://www.woo.com/video?v=exvUH2qKLTU

			http://taco.com?burrito=enchilada#guac

			http://example.org/?post_type=post&amp;p=4
			http://example.org/?post_type=post&#038;p=5
			http://example.org/?post_type=post&p=6

			http://typo-in-query.org/?foo=bar&ampbaz=missing_semicolon
		';

		$urls = wp_extract_urls( $blob );
		$this->assertNotEmpty( $urls );
		$this->assertIsArray( $urls );
		$this->assertCount( count( $original_urls ), $urls );
		$this->assertSame( $original_urls, $urls );

		$exploded = array_values( array_filter( array_map( 'trim', explode( "\n", $blob ) ) ) );
		// wp_extract_urls() calls html_entity_decode().
		$decoded = array_map( 'html_entity_decode', $exploded );

		$this->assertSame( $decoded, $urls );
		$this->assertSame( $original_urls, $decoded );

		$blob = 'Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor
			incididunt ut labore http://woo.com/1,2,3,4,5,6/-1-2-3-4-/woo.html et dolore magna aliqua.
			Ut http://this.com enim ad minim veniam, quis nostrud exercitation 16.06. to 18.06.2014 ullamco http://127.0.0.1
			laboris nisi ut aliquip ex http://www111.urwyeoweytwutreyytqytwetowteuiiu.com/?346236346326&amp;2134362574863.437 ea
			commodo consequat. http://wordpress-core/1,2,3,4,5,6/-1-2-3-4-/woo.html Duis aute irure dolor in reprehenderit in voluptate
			velit esse http://wordpress-core.com:8080/ cillum dolore eu fugiat nulla <A href="http://www.website.com:5000">http://www.website.com:5000</B> pariatur. Excepteur sint occaecat cupidatat non proident,
			sunt in culpa qui officia deserunt mollit http://wordpress-core/?346236346326&amp;2134362574863.437 anim id est laborum.';

		$urls = wp_extract_urls( $blob );
		$this->assertNotEmpty( $urls );
		$this->assertIsArray( $urls );
		$this->assertCount( 8, $urls );
		$this->assertSame( array_slice( $original_urls, 0, 8 ), $urls );

		$blob = 'Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor
			incididunt ut labore <a href="http://woo.com/1,2,3,4,5,6/-1-2-3-4-/woo.html">343462^</a> et dolore magna aliqua.
			Ut <a href="http://this.com">&amp;3640i6p1yi499</a> enim ad minim veniam, quis nostrud exercitation 16.06. to 18.06.2014 ullamco <a href="http://127.0.0.1">localhost</a>
			laboris nisi ut aliquip ex <a href="http://www111.urwyeoweytwutreyytqytwetowteuiiu.com/?346236346326&amp;2134362574863.437">343462^</a> ea
			commodo consequat. <a href="http://wordpress-core/1,2,3,4,5,6/-1-2-3-4-/woo.html">343462^</a> Duis aute irure dolor in reprehenderit in voluptate
			velit esse <a href="http://wordpress-core.com:8080/">-3-4--321-64-4@#!$^$!@^@^</a> cillum dolore eu <A href="http://www.website.com:5000">http://www.website.com:5000</B> fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident,
			sunt in culpa qui officia deserunt mollit <a href="http://wordpress-core/?346236346326&amp;2134362574863.437">)(*&^%$</a> anim id est laborum.';

		$urls = wp_extract_urls( $blob );
		$this->assertNotEmpty( $urls );
		$this->assertIsArray( $urls );
		$this->assertCount( 8, $urls );
		$this->assertSame( array_slice( $original_urls, 0, 8 ), $urls );
	}

	/**
	 * Tests for backward compatibility of `wp_extract_urls` to remove unused semicolons.
	 *
	 * @ticket 30580
	 *
	 * @covers ::wp_extract_urls
	 */
	public function test_wp_extract_urls_remove_semicolon() {
		$expected = array(
			'http://typo.com',
			'http://example.org/?post_type=post&p=8',
		);
		$actual   = wp_extract_urls(
			'
				http://typo.com;
				http://example.org/?post_type=;p;o;s;t;&amp;p=8;
			'
		);

		$this->assertSame( $expected, $actual );
	}

	/**
	 * @ticket 28786
	 */
	public function test_wp_json_encode() {
		$this->assertSame( wp_json_encode( 'a' ), '"a"' );
	}

	/**
	 * @ticket 28786
	 */
	public function test_wp_json_encode_utf8() {
		$this->assertSame( wp_json_encode( '这' ), '"\u8fd9"' );
	}

	/**
	 * @ticket 28786
	 * @requires function mb_detect_order
	 */
	public function test_wp_json_encode_non_utf8() {
		$charsets     = mb_detect_order();
		$old_charsets = $charsets;
		if ( ! in_array( 'EUC-JP', $charsets, true ) ) {
			$charsets[] = 'EUC-JP';
			mb_detect_order( $charsets );
		}

		$eucjp = mb_convert_encoding( 'aあb', 'EUC-JP', 'UTF-8' );
		$utf8  = mb_convert_encoding( $eucjp, 'UTF-8', 'EUC-JP' );

		$this->assertSame( 'aあb', $utf8 );

		$this->assertSame( '"a\u3042b"', wp_json_encode( $eucjp ) );

		mb_detect_order( $old_charsets );
	}

	/**
	 * @ticket 28786
	 * @requires function mb_detect_order
	 */
	public function test_wp_json_encode_non_utf8_in_array() {
		$charsets     = mb_detect_order();
		$old_charsets = $charsets;
		if ( ! in_array( 'EUC-JP', $charsets, true ) ) {
			$charsets[] = 'EUC-JP';
			mb_detect_order( $charsets );
		}

		$eucjp = mb_convert_encoding( 'aあb', 'EUC-JP', 'UTF-8' );
		$utf8  = mb_convert_encoding( $eucjp, 'UTF-8', 'EUC-JP' );

		$this->assertSame( 'aあb', $utf8 );

		$this->assertSame( '["c","a\u3042b"]', wp_json_encode( array( 'c', $eucjp ) ) );

		mb_detect_order( $old_charsets );
	}

	/**
	 * @ticket 28786
	 */
	public function test_wp_json_encode_array() {
		$this->assertSame( wp_json_encode( array( 'a' ) ), '["a"]' );
	}

	/**
	 * @ticket 28786
	 */
	public function test_wp_json_encode_object() {
		$object    = new stdClass();
		$object->a = 'b';
		$this->assertSame( wp_json_encode( $object ), '{"a":"b"}' );
	}

	/**
	 * @ticket 28786
	 */
	public function test_wp_json_encode_depth() {
		$data = array( array( array( 1, 2, 3 ) ) );
		$json = wp_json_encode( $data, 0, 1 );
		$this->assertFalse( $json );

		$data = array( 'あ', array( array( 1, 2, 3 ) ) );
		$json = wp_json_encode( $data, 0, 1 );
		$this->assertFalse( $json );
	}

	/**
	 * @ticket 53238
	 */
	public function test_wp_json_file_decode() {
		$result = wp_json_file_decode(
			DIR_TESTDATA . '/blocks/notice/block.json'
		);

		$this->assertIsObject( $result );
		$this->assertSame( 'tests/notice', $result->name );
	}

	/**
	 * @ticket 53238
	 */
	public function test_wp_json_file_decode_associative_array() {
		$result = wp_json_file_decode(
			DIR_TESTDATA . '/blocks/notice/block.json',
			array( 'associative' => true )
		);

		$this->assertIsArray( $result );
		$this->assertSame( 'tests/notice', $result['name'] );
	}

	/**
	 * @ticket 36054
	 * @dataProvider data_mysql_to_rfc3339
	 */
	public function test_mysql_to_rfc3339( $expected, $actual ) {
		$date_return = mysql_to_rfc3339( $actual );

		$this->assertIsString( $date_return, 'The date return must be a string' );
		$this->assertNotEmpty( $date_return, 'The date return could not be an empty string' );
		$this->assertSame( $expected, $date_return, 'The date does not match' );
		$this->assertEquals( new DateTime( $expected ), new DateTime( $date_return ), 'The date is not the same after the call method' );
	}

	public function data_mysql_to_rfc3339() {
		return array(
			array( '2016-03-15T18:54:46', '15-03-2016 18:54:46' ),
			array( '2016-03-02T19:13:25', '2016-03-02 19:13:25' ),
			array( '2016-03-02T19:13:00', '2016-03-02 19:13' ),
			array( '2016-03-02T19:13:00', '16-03-02 19:13' ),
			array( '2016-03-02T19:13:00', '16-03-02 19:13' ),
		);
	}

	/**
	 * @ticket 35987
	 */
	public function test_wp_get_ext_types() {
		$extensions = wp_get_ext_types();

		$this->assertIsArray( $extensions );
		$this->assertNotEmpty( $extensions );

		add_filter( 'ext2type', '__return_empty_array' );
		$extensions = wp_get_ext_types();
		$this->assertSame( array(), $extensions );

		remove_filter( 'ext2type', '__return_empty_array' );
		$extensions = wp_get_ext_types();
		$this->assertIsArray( $extensions );
		$this->assertNotEmpty( $extensions );
	}

	/**
	 * @ticket 35987
	 */
	public function test_wp_ext2type() {
		$extensions = wp_get_ext_types();

		$this->assertNotEmpty( $extensions );

		foreach ( $extensions as $type => $extension_list ) {
			foreach ( $extension_list as $extension ) {
				$this->assertSame( $type, wp_ext2type( $extension ) );
				$this->assertSame( $type, wp_ext2type( strtoupper( $extension ) ) );
			}
		}

		$this->assertNull( wp_ext2type( 'unknown_format' ) );
	}

	/**
	 * Tests raising the memory limit.
	 *
	 * Unfortunately as the default for 'WP_MAX_MEMORY_LIMIT' in the
	 * test suite is -1, we can not test the memory limit negotiations.
	 *
	 * @ticket 32075
	 */
	public function test_wp_raise_memory_limit() {
		if ( -1 !== WP_MAX_MEMORY_LIMIT ) {
			$this->markTestSkipped( 'WP_MAX_MEMORY_LIMIT should be set to -1.' );
		}

		$ini_limit_before = ini_get( 'memory_limit' );
		$raised_limit     = wp_raise_memory_limit();
		$ini_limit_after  = ini_get( 'memory_limit' );

		$this->assertSame( $ini_limit_before, $ini_limit_after );
		$this->assertFalse( $raised_limit );
		$this->assertEquals( WP_MAX_MEMORY_LIMIT, $ini_limit_after );
	}

	/**
	 * Tests wp_generate_uuid4().
	 *
	 * @covers ::wp_generate_uuid4
	 * @ticket 38164
	 */
	public function test_wp_generate_uuid4() {
		$uuids = array();
		for ( $i = 0; $i < 20; $i += 1 ) {
			$uuid = wp_generate_uuid4();
			$this->assertTrue( wp_is_uuid( $uuid, 4 ) );
			$uuids[] = $uuid;
		}

		$unique_uuids = array_unique( $uuids );
		$this->assertSame( $uuids, $unique_uuids );
	}

	/**
	 * Tests wp_is_uuid().
	 *
	 * @covers ::wp_is_uuid
	 * @ticket 39778
	 */
	public function test_wp_is_valid_uuid() {
		$uuids_v4 = array(
			'27fe2421-780c-44c5-b39b-fff753092b55',
			'b7c7713a-4ee9-45a1-87ed-944a90390fc7',
			'fbedbe35-7bf5-49cc-a5ac-0343bd94360a',
			'4c58e67e-123b-4290-a41c-5eeb6970fa3e',
			'f54f5b78-e414-4637-84a9-a6cdc94a1beb',
			'd1c533ac-abcf-44b6-9b0e-6477d2c91b09',
			'7fcd683f-e5fd-454a-a8b9-ed15068830da',
			'7962c750-e58c-470a-af0d-ec1eae453ff2',
			'a59878ce-9a67-4493-8ca0-a756b52804b3',
			'6faa519d-1e13-4415-bd6f-905ae3689d1d',
		);

		foreach ( $uuids_v4 as $uuid ) {
			$this->assertTrue( wp_is_uuid( $uuid, 4 ) );
		}

		$uuids = array(
			'00000000-0000-0000-0000-000000000000', // Nil.
			'9e3a0460-d72d-11e4-a631-c8e0eb141dab', // Version 1.
			'2c1d43b8-e6d7-376e-af7f-d4bde997cc3f', // Version 3.
			'39888f87-fb62-5988-a425-b2ea63f5b81e', // Version 5.
		);

		foreach ( $uuids as $uuid ) {
			$this->assertTrue( wp_is_uuid( $uuid ) );
			$this->assertFalse( wp_is_uuid( $uuid, 4 ) );
		}

		$invalid_uuids = array(
			'a19d5192-ea41-41e6-b006',
			'this-is-not-valid',
			1234,
			true,
			array(),
		);

		foreach ( $invalid_uuids as $invalid_uuid ) {
			$this->assertFalse( wp_is_uuid( $invalid_uuid, 4 ) );
			$this->assertFalse( wp_is_uuid( $invalid_uuid ) );
		}
	}

	/**
	 * Tests wp_unique_id().
	 *
	 * @covers ::wp_unique_id
	 * @ticket 44883
	 */
	public function test_wp_unique_id() {

		// Test without prefix.
		$ids = array();
		for ( $i = 0; $i < 20; $i += 1 ) {
			$id = wp_unique_id();
			$this->assertIsString( $id );
			$this->assertIsNumeric( $id );
			$ids[] = $id;
		}
		$this->assertSame( $ids, array_unique( $ids ) );

		// Test with prefix.
		$ids = array();
		for ( $i = 0; $i < 20; $i += 1 ) {
			$id = wp_unique_id( 'foo-' );
			$this->assertMatchesRegularExpression( '/^foo-\d+$/', $id );
			$ids[] = $id;
		}
		$this->assertSame( $ids, array_unique( $ids ) );
	}

	/**
	 * @ticket 40017
	 * @dataProvider data_wp_get_image_mime
	 */
	public function test_wp_get_image_mime( $file, $expected ) {
		if ( ! is_callable( 'exif_imagetype' ) && ! function_exists( 'getimagesize' ) ) {
			$this->markTestSkipped( 'The exif PHP extension is not loaded.' );
		}

		if ( is_array( $expected ) ) {
			$this->assertContains( wp_get_image_mime( $file ), $expected );
		} else {
			$this->assertSame( $expected, wp_get_image_mime( $file ) );
		}
	}

	/**
	 * Data provider for test_wp_get_image_mime().
	 */
	public function data_wp_get_image_mime() {
		$data = array(
			// Standard JPEG.
			array(
				DIR_TESTDATA . '/images/test-image.jpg',
				'image/jpeg',
			),
			// Standard GIF.
			array(
				DIR_TESTDATA . '/images/test-image.gif',
				'image/gif',
			),
			// Standard PNG.
			array(
				DIR_TESTDATA . '/images/test-image.png',
				'image/png',
			),
			// Image with wrong extension.
			array(
				DIR_TESTDATA . '/images/test-image-mime-jpg.png',
				'image/jpeg',
			),
			// Animated WebP.
			array(
				DIR_TESTDATA . '/images/webp-animated.webp',
				'image/webp',
			),
			// Lossless WebP.
			array(
				DIR_TESTDATA . '/images/webp-lossless.webp',
				'image/webp',
			),
			// Lossy WebP.
			array(
				DIR_TESTDATA . '/images/webp-lossy.webp',
				'image/webp',
			),
			// Transparent WebP.
			array(
				DIR_TESTDATA . '/images/webp-transparent.webp',
				'image/webp',
			),
			// Not an image.
			array(
				DIR_TESTDATA . '/uploads/dashicons.woff',
				false,
			),
			// Animated AVIF.
			array(
				DIR_TESTDATA . '/images/avif-animated.avif',
				'image/avif',
			),
			// Lossless AVIF.
			array(
				DIR_TESTDATA . '/images/avif-lossless.avif',
				'image/avif',
			),
			// Lossy AVIF.
			array(
				DIR_TESTDATA . '/images/avif-lossy.avif',
				'image/avif',
			),
			// Transparent AVIF.
			array(
				DIR_TESTDATA . '/images/avif-transparent.avif',
				'image/avif',
			),
			// HEIC.
			array(
				DIR_TESTDATA . '/images/test-image.heic',
				// In PHP 8.5, it returns 'image/heif'. Before that, it returns 'image/heic'.
				array( 'image/heic', 'image/heif' ),
			),
		);

		return $data;
	}

	/**
	 * @ticket 35725
	 * @dataProvider data_wp_getimagesize
	 */
	public function test_wp_getimagesize( $file, $expected ) {
		if ( ! is_callable( 'exif_imagetype' ) && ! function_exists( 'getimagesize' ) ) {
			$this->markTestSkipped( 'The exif PHP extension is not loaded.' );
		}

		$result = wp_getimagesize( $file );

		// The getimagesize() function varies in its response, so
		// let's restrict comparison to expected keys only.
		if ( is_array( $expected ) ) {
			foreach ( $expected as $k => $v ) {
				$this->assertArrayHasKey( $k, $result );
				$this->assertSame( $expected[ $k ], $result[ $k ] );
			}
		} else {
			$this->assertSame( $expected, $result );
		}
	}

	/**
	 * Data provider for test_wp_getimagesize().
	 */
	public function data_wp_getimagesize() {
		$data = array(
			// Standard JPEG.
			array(
				DIR_TESTDATA . '/images/test-image.jpg',
				array(
					50,
					50,
					IMAGETYPE_JPEG,
					'width="50" height="50"',
					'mime' => 'image/jpeg',
				),
			),
			// Standard GIF.
			array(
				DIR_TESTDATA . '/images/test-image.gif',
				array(
					50,
					50,
					IMAGETYPE_GIF,
					'width="50" height="50"',
					'mime' => 'image/gif',
				),
			),
			// Standard PNG.
			array(
				DIR_TESTDATA . '/images/test-image.png',
				array(
					50,
					50,
					IMAGETYPE_PNG,
					'width="50" height="50"',
					'mime' => 'image/png',
				),
			),
			// Image with wrong extension.
			array(
				DIR_TESTDATA . '/images/test-image-mime-jpg.png',
				array(
					50,
					50,
					IMAGETYPE_JPEG,
					'width="50" height="50"',
					'mime' => 'image/jpeg',
				),
			),
			// Animated WebP.
			array(
				DIR_TESTDATA . '/images/webp-animated.webp',
				array(
					100,
					100,
					IMAGETYPE_WEBP,
					'width="100" height="100"',
					'mime' => 'image/webp',
				),
			),
			// Lossless WebP.
			array(
				DIR_TESTDATA . '/images/webp-lossless.webp',
				array(
					1200,
					675,
					IMAGETYPE_WEBP,
					'width="1200" height="675"',
					'mime' => 'image/webp',
				),
			),
			// Lossy WebP.
			array(
				DIR_TESTDATA . '/images/webp-lossy.webp',
				array(
					1200,
					675,
					IMAGETYPE_WEBP,
					'width="1200" height="675"',
					'mime' => 'image/webp',
				),
			),
			// Transparent WebP.
			array(
				DIR_TESTDATA . '/images/webp-transparent.webp',
				array(
					1200,
					675,
					IMAGETYPE_WEBP,
					'width="1200" height="675"',
					'mime' => 'image/webp',
				),
			),
			// Not an image.
			array(
				DIR_TESTDATA . '/uploads/dashicons.woff',
				false,
			),
			// Animated AVIF.
			array(
				DIR_TESTDATA . '/images/avif-animated.avif',
				array(
					150,
					150,
					IMAGETYPE_AVIF,
					'width="150" height="150"',
					'mime' => 'image/avif',
				),
			),
			// Lossless AVIF.
			array(
				DIR_TESTDATA . '/images/avif-lossless.avif',
				array(
					400,
					400,
					IMAGETYPE_AVIF,
					'width="400" height="400"',
					'mime' => 'image/avif',
				),
			),
			// Lossy AVIF.
			array(
				DIR_TESTDATA . '/images/avif-lossy.avif',
				array(
					400,
					400,
					IMAGETYPE_AVIF,
					'width="400" height="400"',
					'mime' => 'image/avif',
				),
			),
			// Transparent AVIF.
			array(
				DIR_TESTDATA . '/images/avif-transparent.avif',
				array(
					128,
					128,
					IMAGETYPE_AVIF,
					'width="128" height="128"',
					'mime' => 'image/avif',
				),
			),
			// Grid AVIF.
			array(
				DIR_TESTDATA . '/images/avif-alpha-grid2x1.avif',
				array(
					199,
					200,
					IMAGETYPE_AVIF,
					'width="199" height="200"',
					'mime' => 'image/avif',
				),
			),
		);

		return $data;
	}

	/**
	 * Tests that wp_getimagesize() correctly handles HEIC image files.
	 *
	 * @ticket 53645
	 */
	public function test_wp_getimagesize_heic() {
		if ( ! is_callable( 'exif_imagetype' ) && ! function_exists( 'getimagesize' ) ) {
			$this->markTestSkipped( 'The exif PHP extension is not loaded.' );
		}

		$file = DIR_TESTDATA . '/images/test-image.heic';

		$editor = wp_get_image_editor( $file );
		if ( is_wp_error( $editor ) || ! $editor->supports_mime_type( 'image/heic' ) ) {
			$this->markTestSkipped( 'No HEIC support in the editor engine on this system.' );
		}

		$expected = array(
			1180,
			1180,
			IMAGETYPE_HEIF,
			'width="1180" height="1180"',
		);

		// As of PHP 8.5.0, getimagesize() supports HEIF/HEIC files.
		if ( PHP_VERSION_ID >= 80500 ) {
			$expected = array_merge(
				$expected,
				array(
					'bits'        => 8,
					'channels'    => 3,
					'mime'        => 'image/heif',
					'width_unit'  => 'px',
					'height_unit' => 'px',
				)
			);
		} else {
			$expected['mime'] = 'image/heic';
		}

		$result = wp_getimagesize( $file );
		$this->assertSame( $expected, $result );
	}


	/**
	 * @ticket 39550
	 * @dataProvider data_wp_check_filetype_and_ext
	 * @requires extension fileinfo
	 */
	public function test_wp_check_filetype_and_ext( $file, $filename, $expected ) {
		$this->assertSame( $expected, wp_check_filetype_and_ext( $file, $filename ) );
	}

	public function data_wp_check_filetype_and_ext() {
		$data = array(
			// Standard image.
			array(
				DIR_TESTDATA . '/images/canola.jpg',
				'canola.jpg',
				array(
					'ext'             => 'jpg',
					'type'            => 'image/jpeg',
					'proper_filename' => false,
				),
			),
			// Image with wrong extension.
			array(
				DIR_TESTDATA . '/images/test-image-mime-jpg.png',
				'test-image-mime-jpg.png',
				array(
					'ext'             => 'jpg',
					'type'            => 'image/jpeg',
					'proper_filename' => 'test-image-mime-jpg.jpg',
				),
			),
			// Image without extension.
			array(
				DIR_TESTDATA . '/images/test-image-no-extension',
				'test-image-no-extension',
				array(
					'ext'             => false,
					'type'            => false,
					'proper_filename' => false,
				),
			),
			// Valid non-image file with an image extension.
			array(
				DIR_TESTDATA . '/formatting/big5.txt',
				'big5.jpg',
				array(
					'ext'             => false,
					'type'            => false,
					'proper_filename' => false,
				),
			),
			// Non-image file not allowed.
			array(
				DIR_TESTDATA . '/export/crazy-cdata.xml',
				'crazy-cdata.xml',
				array(
					'ext'             => false,
					'type'            => false,
					'proper_filename' => false,
				),
			),
			// Non-image file not allowed even if it's named like one.
			array(
				DIR_TESTDATA . '/export/crazy-cdata.xml',
				'crazy-cdata.jpg',
				array(
					'ext'             => false,
					'type'            => false,
					'proper_filename' => false,
				),
			),
			// Non-image file not allowed if it's named like something else.
			array(
				DIR_TESTDATA . '/export/crazy-cdata.xml',
				'crazy-cdata.doc',
				array(
					'ext'             => false,
					'type'            => false,
					'proper_filename' => false,
				),
			),
			// Non-image file not allowed even if it's named like one.
			array(
				DIR_TESTDATA . '/export/crazy-cdata.xml',
				'crazy-cdata.jpg',
				array(
					'ext'             => false,
					'type'            => false,
					'proper_filename' => false,
				),
			),
			// Non-image file not allowed if it's named like something else.
			array(
				DIR_TESTDATA . '/export/crazy-cdata.xml',
				'crazy-cdata.doc',
				array(
					'ext'             => false,
					'type'            => false,
					'proper_filename' => false,
				),
			),
		);

		// Test a few additional file types on single sites.
		if ( ! is_multisite() ) {
			$data = array_merge(
				$data,
				array(
					// Standard non-image file.
					array(
						DIR_TESTDATA . '/formatting/big5.txt',
						'big5.txt',
						array(
							'ext'             => 'txt',
							'type'            => 'text/plain',
							'proper_filename' => false,
						),
					),
					// Google Docs file for which finfo_file() returns a duplicate mime type.
					array(
						DIR_TESTDATA . '/uploads/double-mime-type.docx',
						'double-mime-type.docx',
						array(
							'ext'             => 'docx',
							'type'            => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
							'proper_filename' => false,
						),
					),
					// Non-image file with wrong sub-type.
					array(
						DIR_TESTDATA . '/uploads/pages-to-word.docx',
						'pages-to-word.docx',
						array(
							'ext'             => 'docx',
							'type'            => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
							'proper_filename' => false,
						),
					),
					// FLAC file.
					array(
						DIR_TESTDATA . '/uploads/small-audio.flac',
						'small-audio.flac',
						array(
							'ext'             => 'flac',
							'type'            => 'audio/flac',
							'proper_filename' => false,
						),
					),
					// Assorted text/* sample files
					array(
						DIR_TESTDATA . '/uploads/test.vtt',
						'test.vtt',
						array(
							'ext'             => 'vtt',
							'type'            => 'text/vtt',
							'proper_filename' => false,
						),
					),
					array(
						DIR_TESTDATA . '/uploads/test.csv',
						'test.csv',
						array(
							'ext'             => 'csv',
							'type'            => 'text/csv',
							'proper_filename' => false,
						),
					),
					// RTF files.
					array(
						DIR_TESTDATA . '/uploads/test.rtf',
						'test.rtf',
						array(
							'ext'             => 'rtf',
							'type'            => 'application/rtf',
							'proper_filename' => false,
						),
					),
				)
			);
		}

		return $data;
	}

	/**
	 * @ticket 39550
	 * @group ms-excluded
	 * @requires extension fileinfo
	 */
	public function test_wp_check_filetype_and_ext_with_filtered_svg() {
		$file     = DIR_TESTDATA . '/uploads/video-play.svg';
		$filename = 'video-play.svg';

		$expected = array(
			'ext'             => 'svg',
			'type'            => 'image/svg+xml',
			'proper_filename' => false,
		);

		add_filter(
			'upload_mimes',
			static function ( $mimes ) {
				$mimes['svg'] = 'image/svg+xml';
				return $mimes;
			}
		);

		$this->assertSame( $expected, wp_check_filetype_and_ext( $file, $filename ) );
	}

	/**
	 * @ticket 39550
	 * @group ms-excluded
	 * @requires extension fileinfo
	 */
	public function test_wp_check_filetype_and_ext_with_filtered_woff() {
		$file     = DIR_TESTDATA . '/uploads/dashicons.woff';
		$filename = 'dashicons.woff';

		$woff_mime_type = 'application/font-woff';

		/*
		 * As of PHP 8.1.12, which includes libmagic/file update to version 5.42,
		 * the expected mime type for WOFF files is 'font/woff'.
		 *
		 * See https://github.com/php/php-src/issues/8805.
		 */
		if ( PHP_VERSION_ID >= 80112 ) {
			$woff_mime_type = 'font/woff';
		}

		$expected = array(
			'ext'             => 'woff',
			'type'            => $woff_mime_type,
			'proper_filename' => false,
		);

		add_filter(
			'upload_mimes',
			static function ( $mimes ) use ( $woff_mime_type ) {
				$mimes['woff'] = $woff_mime_type;
				return $mimes;
			}
		);

		$this->assertSame( $expected, wp_check_filetype_and_ext( $file, $filename ) );
	}

	/**
	 * Test file path validation
	 *
	 * @ticket 42016
	 * @ticket 61488
	 * @dataProvider data_validate_file
	 *
	 * @param string $file          File path.
	 * @param array  $allowed_files List of allowed files.
	 * @param int    $expected      Expected result.
	 */
	public function test_validate_file( $file, $allowed_files, $expected ) {
		$this->assertSame( $expected, validate_file( $file, $allowed_files ) );
	}

	/**
	 * Data provider for file validation.
	 *
	 * @return array {
	 *     @type array ...$0 {
	 *         @type string $0 File path.
	 *         @type array  $1 List of allowed files.
	 *         @type int    $2 Expected result.
	 *     }
	 * }
	 */
	public function data_validate_file() {
		return array(

			// Allowed files:
			array(
				null,
				array(),
				0,
			),
			array(
				'',
				array(),
				0,
			),
			array(
				' ',
				array(),
				0,
			),
			array(
				'.',
				array(),
				0,
			),
			array(
				'..',
				array(),
				0,
			),
			array(
				'./',
				array(),
				0,
			),
			array(
				'foo.ext',
				array( 'foo.ext' ),
				0,
			),
			array(
				'dir/foo.ext',
				array(),
				0,
			),
			array(
				'foo..ext',
				array(),
				0,
			),
			array(
				'dir/dir/../',
				array(),
				0,
			),

			// Directory traversal:
			array(
				'../',
				array(),
				1,
			),
			array(
				'../../',
				array(),
				1,
			),
			array(
				'../file.ext',
				array(),
				1,
			),
			array(
				'../dir/../',
				array(),
				1,
			),
			array(
				'/dir/dir/../../',
				array(),
				1,
			),
			array(
				'/dir/dir/../../',
				array( '/dir/dir/../../' ),
				1,
			),

			// Windows drives:
			array(
				'c:',
				array(),
				2,
			),
			array(
				'C:/WINDOWS/system32',
				array( 'C:/WINDOWS/system32' ),
				2,
			),

			// Windows Path with allowed file
			array(
				'Apache24\htdocs\wordpress/wp-content/themes/twentyten/style.css',
				array( 'Apache24\htdocs\wordpress/wp-content/themes/twentyten/style.css' ),
				0,
			),

			// Disallowed files:
			array(
				'foo.ext',
				array( 'bar.ext' ),
				3,
			),
			array(
				'foo.ext',
				array( '.ext' ),
				3,
			),
			array(
				'path/foo.ext',
				array( 'foo.ext' ),
				3,
			),

		);
	}

	/**
	 * Test stream URL validation.
	 *
	 * @dataProvider data_wp_is_stream
	 *
	 * @param string $path     The resource path or URL.
	 * @param bool   $expected Expected result.
	 */
	public function test_wp_is_stream( $path, $expected ) {
		if ( ! extension_loaded( 'openssl' ) && false !== strpos( $path, 'https://' ) ) {
			$this->markTestSkipped( 'The openssl PHP extension is not loaded.' );
		}

		$this->assertSame( $expected, wp_is_stream( $path ) );
	}

	/**
	 * Data provider for stream URL validation.
	 *
	 * @return array {
	 *     @type array ...$0 {
	 *         @type string $0 The resource path or URL.
	 *         @type bool   $1 Expected result.
	 *     }
	 * }
	 */
	public function data_wp_is_stream() {
		return array(
			// Legitimate stream examples.
			array( 'http://example.com', true ),
			array( 'https://example.com', true ),
			array( 'ftp://example.com', true ),
			array( 'file:///path/to/some/file', true ),
			array( 'php://some/php/file.php', true ),

			// Non-stream examples.
			array( 'fakestream://foo/bar/baz', false ),
			array( '../../some/relative/path', false ),
			array( 'some/other/relative/path', false ),
			array( '/leading/relative/path', false ),
		);
	}

	/**
	 * Test human_readable_duration().
	 *
	 * @ticket 39667
	 * @dataProvider data_human_readable_duration
	 *
	 * @param string $input    Duration.
	 * @param string $expected Expected human readable duration.
	 */
	public function test_human_readable_duration( $input, $expected ) {
		$this->assertSame( $expected, human_readable_duration( $input ) );
	}

	/**
	 * Data provider for test_duration_format().
	 *
	 * @return array {
	 *     @type array {
	 *         @type string $input  Duration.
	 *         @type string $expect Expected human readable duration.
	 *     }
	 * }
	 */
	public function data_human_readable_duration() {
		return array(
			// Valid ii:ss cases.
			array( '0:0', '0 minutes, 0 seconds' ),
			array( '00:00', '0 minutes, 0 seconds' ),
			array( '0:5', '0 minutes, 5 seconds' ),
			array( '0:05', '0 minutes, 5 seconds' ),
			array( '01:01', '1 minute, 1 second' ),
			array( '30:00', '30 minutes, 0 seconds' ),
			array( ' 30:00 ', '30 minutes, 0 seconds' ),
			// Valid HH:ii:ss cases.
			array( '0:0:0', '0 hours, 0 minutes, 0 seconds' ),
			array( '00:00:00', '0 hours, 0 minutes, 0 seconds' ),
			array( '00:30:34', '0 hours, 30 minutes, 34 seconds' ),
			array( '01:01:01', '1 hour, 1 minute, 1 second' ),
			array( '1:02:00', '1 hour, 2 minutes, 0 seconds' ),
			array( '10:30:34', '10 hours, 30 minutes, 34 seconds' ),
			array( '1234567890:59:59', '1234567890 hours, 59 minutes, 59 seconds' ),
			// Valid ii:ss cases with negative sign.
			array( '-00:00', '0 minutes, 0 seconds' ),
			array( '-3:00', '3 minutes, 0 seconds' ),
			array( '-03:00', '3 minutes, 0 seconds' ),
			array( '-30:00', '30 minutes, 0 seconds' ),
			// Valid HH:ii:ss cases with negative sign.
			array( '-00:00:00', '0 hours, 0 minutes, 0 seconds' ),
			array( '-1:02:00', '1 hour, 2 minutes, 0 seconds' ),
			// Invalid cases.
			array( null, false ),
			array( '', false ),
			array( ':', false ),
			array( '::', false ),
			array( array(), false ),
			array( 'Batman Begins !', false ),
			array( '', false ),
			array( '-1', false ),
			array( -1, false ),
			array( 0, false ),
			array( 1, false ),
			array( '00', false ),
			array( '30:-10', false ),
			array( ':30:00', false ),   // Missing HH.
			array( 'MM:30:00', false ), // Invalid HH.
			array( '30:MM:00', false ), // Invalid ii.
			array( '30:30:MM', false ), // Invalid ss.
			array( '30:MM', false ),    // Invalid ss.
			array( 'MM:00', false ),    // Invalid ii.
			array( 'MM:MM', false ),    // Invalid ii and ss.
			array( '10 :30', false ),   // Containing a space.
			array( '59:61', false ),    // Out of bound.
			array( '61:59', false ),    // Out of bound.
			array( '3:59:61', false ),  // Out of bound.
			array( '03:61:59', false ), // Out of bound.
		);
	}

	/**
	 * @ticket 49404
	 * @dataProvider data_wp_is_json_media_type
	 */
	public function test_wp_is_json_media_type( $input, $expected ) {
		$this->assertSame( $expected, wp_is_json_media_type( $input ) );
	}


	public function data_wp_is_json_media_type() {
		return array(
			array( 'application/ld+json', true ),
			array( 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"', true ),
			array( 'application/activity+json', true ),
			array( 'application/json+oembed', true ),
			array( 'application/json', true ),
			array( 'application/nojson', false ),
			array( 'application/no.json', false ),
			array( 'text/html, application/xhtml+xml, application/xml;q=0.9, image/webp, */*;q=0.8', false ),
			array( 'application/activity+json, application/nojson', true ),
		);
	}

	/**
	 * @ticket 53668
	 */
	public function test_wp_get_default_extension_for_mime_type() {
		$this->assertSame( 'jpg', wp_get_default_extension_for_mime_type( 'image/jpeg' ), 'jpg not returned as default extension for "image/jpeg"' );
		$this->assertNotEquals( 'jpeg', wp_get_default_extension_for_mime_type( 'image/jpeg' ), 'jpeg should not be returned as default extension for "image/jpeg"' );
		$this->assertSame( 'png', wp_get_default_extension_for_mime_type( 'image/png' ), 'png not returned as default extension for "image/png"' );
		$this->assertFalse( wp_get_default_extension_for_mime_type( 'wibble/wobble' ), 'false not returned for unrecognized mime type' );
		$this->assertFalse( wp_get_default_extension_for_mime_type( '' ), 'false not returned when empty string as mime type supplied' );
		$this->assertFalse( wp_get_default_extension_for_mime_type( '   ' ), 'false not returned when empty string as mime type supplied' );
		$this->assertFalse( wp_get_default_extension_for_mime_type( 123 ), 'false not returned when int as mime type supplied' );
		$this->assertFalse( wp_get_default_extension_for_mime_type( null ), 'false not returned when null as mime type supplied' );
	}

	/**
	 * @ticket 55505
	 * @covers ::wp_recursive_ksort
	 */
	public function test_wp_recursive_ksort() {
		// Create an array to test.
		$theme_json = array(
			'version'  => 1,
			'settings' => array(
				'typography' => array(
					'fontFamilies' => array(
						'fontFamily' => 'DM Sans, sans-serif',
						'slug'       => 'dm-sans',
						'name'       => 'DM Sans',
					),
				),
				'color'      => array(
					'palette' => array(
						array(
							'slug'  => 'foreground',
							'color' => '#242321',
							'name'  => 'Foreground',
						),
						array(
							'slug'  => 'background',
							'color' => '#FCFBF8',
							'name'  => 'Background',
						),
						array(
							'slug'  => 'primary',
							'color' => '#71706E',
							'name'  => 'Primary',
						),
						array(
							'slug'  => 'tertiary',
							'color' => '#CFCFCF',
							'name'  => 'Tertiary',
						),
					),
				),
			),
		);

		// Sort the array.
		wp_recursive_ksort( $theme_json );

		// Expected result.
		$expected_theme_json = array(
			'settings' => array(
				'color'      => array(
					'palette' => array(
						array(
							'color' => '#242321',
							'name'  => 'Foreground',
							'slug'  => 'foreground',
						),
						array(
							'color' => '#FCFBF8',
							'name'  => 'Background',
							'slug'  => 'background',
						),
						array(
							'color' => '#71706E',
							'name'  => 'Primary',
							'slug'  => 'primary',
						),
						array(
							'color' => '#CFCFCF',
							'name'  => 'Tertiary',
							'slug'  => 'tertiary',
						),
					),
				),
				'typography' => array(
					'fontFamilies' => array(
						'fontFamily' => 'DM Sans, sans-serif',
						'name'       => 'DM Sans',
						'slug'       => 'dm-sans',
					),
				),
			),
			'version'  => 1,
		);
		$this->assertSameSetsWithIndex( $theme_json, $expected_theme_json );
	}
}