<?php

/**

* @group image

* @group media

* @group upload

* @requires extension gd

* @requires extension exif

*

* @covers ::wp_read_image_metadata

*/

class Tests_Image_Meta extends WP_UnitTestCase {

public static function wpSetUpBeforeClass( WP_UnitTest_Factory $factory ) {

require_once DIR_TESTROOT . '/includes/class-wp-test-stream.php';

stream_wrapper_register( 'testimagemeta', 'WP_Test_Stream' );

WP_Test_Stream::$data = array(

'wp_read_image_metadata' => array(

'/image1.jpg' => file_get_contents( DIR_TESTDATA . '/images/test-image-upside-down.jpg' ),

'/image2.jpg' => file_get_contents( DIR_TESTDATA . '/images/2004-07-22-DSC_0007.jpg' ),

'/image3.jpg' => file_get_contents( DIR_TESTDATA . '/images/33772.jpg' ),

),

);

}

public static function wpTearDownAfterClass() {

stream_wrapper_unregister( 'testimagemeta' );

}

public function test_exif_d70() {

// Exif from a Nikon D70.

$out = wp_read_image_metadata( DIR_TESTDATA . '/images/2004-07-22-DSC_0008.jpg' );

$this->assertSame( '6.3', $out['aperture'], 'Aperture value not equivalent' );

$this->assertSame( '', $out['credit'], 'Credit value not the same' );

$this->assertSame( 'NIKON D70', $out['camera'], 'Camera value not the same' );

$this->assertSame( '', $out['caption'], 'Caption value not the same' );

$this->assertSame( (string) strtotime( '2004-07-22 17:14:59' ), $out['created_timestamp'], 'Timestamp value not equivalent' );

$this->assertSame( '', $out['copyright'], 'Copyright value not the same' );

$this->assertSame( '27', $out['focal_length'], 'Focal length value not equivalent' );

$this->assertSame( '400', $out['iso'], 'Iso value not equivalent' );

$this->assertSame( (string) ( 1 / 40 ), $out['shutter_speed'], 'Shutter speed value not equivalent' );

$this->assertSame( '', $out['title'], 'Title value not the same' );

}

public function test_exif_d70_mf() {

// Exif from a Nikon D70 - manual focus lens, so some data is unavailable.

$out = wp_read_image_metadata( DIR_TESTDATA . '/images/2007-06-17DSC_4173.JPG' );

$this->assertSame( '0', $out['aperture'], 'Aperture value not the same' );

$this->assertSame( '', $out['credit'], 'Credit value not the same' );

$this->assertSame( 'NIKON D70', $out['camera'], 'Camera value not the same' );

$this->assertSame( 'Copyright Alex Shiels', $out['caption'], 'Caption value not the same' );

$this->assertSame( (string) strtotime( '2007-06-17 21:18:00' ), $out['created_timestamp'], 'Timestamp value not equivalent' );

$this->assertSame( '', $out['copyright'], 'Copyright value not the same' );

$this->assertSame( '0', $out['focal_length'], 'Focal length value not equivalent' );

$this->assertSame( '0', $out['iso'], 'Iso value not equivalent' ); // Interesting - a Nikon bug?

$this->assertSame( (string) ( 1 / 500 ), $out['shutter_speed'], 'Shutter speed value not equivalent' );

$this->assertSame( 'Copyright Alex Shiels', $out['title'], 'Title value not the same' );

// $this->assertSame( array( 'Flowers' ), $out['keywords'] );

}

public function test_exif_d70_iptc() {

// Exif from a Nikon D70 with IPTC data added later.

$out = wp_read_image_metadata( DIR_TESTDATA . '/images/2004-07-22-DSC_0007.jpg' );

$this->assertSame( '6.3', $out['aperture'], 'Aperture value not equivalent' );

$this->assertSame( 'IPTC Creator', $out['credit'], 'Credit value not the same' );

$this->assertSame( 'NIKON D70', $out['camera'], 'Camera value not the same' );

$this->assertSame( 'IPTC Caption', $out['caption'], 'Caption value not the same' );

$this->assertSame( (string) strtotime( '2004-07-22 17:14:35' ), $out['created_timestamp'], 'Timestamp value not equivalent' );

$this->assertSame( 'IPTC Copyright', $out['copyright'], 'Copyright value not the same' );

$this->assertSame( '18', $out['focal_length'], 'Focal length value not equivalent' );

$this->assertSame( '200', $out['iso'], 'Iso value not equivalent' );

$this->assertSame( (string) ( 1 / 25 ), $out['shutter_speed'], 'Shutter speed value not equivalent' );

$this->assertSame( 'IPTC Headline', $out['title'], 'Title value not the same' );

}

public function test_exif_fuji() {

// Exif from a Fuji FinePix S5600 (thanks Mark).

$out = wp_read_image_metadata( DIR_TESTDATA . '/images/a2-small.jpg' );

$this->assertSame( '4.5', $out['aperture'], 'Aperture value not equivalent' );

$this->assertSame( '', $out['credit'], 'Credit value not the same' );

$this->assertSame( 'FinePix S5600', $out['camera'], 'Camera value not the same' );

$this->assertSame( '', $out['caption'], 'Caption value not the same' );

$this->assertSame( (string) strtotime( '2007-09-03 10:17:03' ), $out['created_timestamp'], 'Timestamp value not equivalent' );

$this->assertSame( '', $out['copyright'], 'Copyright value not the same' );

$this->assertSame( '6.3', $out['focal_length'], 'Focal length value not equivalent' );

$this->assertSame( '64', $out['iso'], 'Iso value not equivalent' );

$this->assertSame( (string) ( 1 / 320 ), $out['shutter_speed'], 'Shutter speed value not equivalent' );

$this->assertSame( '', $out['title'], 'Title value not the same' );

}

/**

* @ticket 6571

*/

public function test_exif_error() {

// https://core.trac.wordpress.org/ticket/6571

// This triggers a warning message when reading the Exif block.

$out = wp_read_image_metadata( DIR_TESTDATA . '/images/waffles.jpg' );

$this->assertSame( '0', $out['aperture'], 'Aperture value not equivalent' );

$this->assertSame( '', $out['credit'], 'Credit value not the same' );

$this->assertSame( '', $out['camera'], 'Camera value not the same' );

$this->assertSame( '', $out['caption'], 'Caption value not the same' );

$this->assertSame( '0', $out['created_timestamp'], 'Timestamp value not equivalent' );

$this->assertSame( '', $out['copyright'], 'Copyright value not the same' );

$this->assertSame( '0', $out['focal_length'], 'Focal length value not equivalent' );

$this->assertSame( '0', $out['iso'], 'Iso value not equivalent' );

$this->assertSame( '0', $out['shutter_speed'], 'Shutter speed value not equivalent' );

$this->assertSame( '', $out['title'], 'Title value not the same' );

}

public function test_exif_no_data() {

// No Exif data in this image (from burningwell.org).

$out = wp_read_image_metadata( DIR_TESTDATA . '/images/canola.jpg' );

$this->assertSame( '0', $out['aperture'], 'Aperture value not equivalent' );

$this->assertSame( '', $out['credit'], 'Credit value not the same' );

$this->assertSame( '', $out['camera'], 'Camera value not the same' );

$this->assertSame( '', $out['caption'], 'Caption value not the same' );

$this->assertSame( '0', $out['created_timestamp'], 'Timestamp value not equivalent' );

$this->assertSame( '', $out['copyright'], 'Copyright value not the same' );

$this->assertSame( '0', $out['focal_length'], 'Focal length value not equivalent' );

$this->assertSame( '0', $out['iso'], 'Iso value not equivalent' );

$this->assertSame( '0', $out['shutter_speed'], 'Shutter speed value not equivalent' );

$this->assertSame( '', $out['title'], 'Title value not the same' );

}

/**

* @ticket 9417

*/

public function test_utf8_iptc_tags() {

// Trilingual UTF-8 text in the ITPC caption-abstract field.

$out = wp_read_image_metadata( DIR_TESTDATA . '/images/test-image-iptc.jpg' );

$this->assertSame( 'This is a comment. / Это комментарий. / Βλέπετε ένα σχόλιο.', $out['caption'] );

}

/**

* wp_read_image_metadata() should return false if the image file doesn't exist.

*/

public function test_missing_image_file() {

$out = wp_read_image_metadata( DIR_TESTDATA . '/images/404_image.png' );

$this->assertFalse( $out );

}

/**

* @ticket 33772

*/

public function test_exif_keywords() {

$out = wp_read_image_metadata( DIR_TESTDATA . '/images/33772.jpg' );

$this->assertSame( '8', $out['aperture'], 'Aperture value not the same' );

$this->assertSame( 'Photoshop Author', $out['credit'], 'Credit value not the same' );

$this->assertSame( 'DMC-LX2', $out['camera'], 'Camera value not the same' );

$this->assertSame( 'Photoshop Description', $out['caption'], 'Caption value not the same' );

$this->assertSame( '1306315327', $out['created_timestamp'], 'Timestamp value not equivalent' );

$this->assertSame( 'Photoshop Copyrright Notice', $out['copyright'], 'Copyright value not the same' );

$this->assertSame( '6.3', $out['focal_length'], 'Focal length value not the same' );

$this->assertSame( '100', $out['iso'], 'Iso value not the same' );

$this->assertSame( '0.0025', $out['shutter_speed'], 'Shutter speed value not the same' );

$this->assertSame( 'Photoshop Document Ttitle', $out['title'], 'Title value not the same' );

$this->assertSame( '1', $out['orientation'], 'Orientation value not equivalent' );

$this->assertSame( array( 'beach', 'baywatch', 'LA', 'sunset' ), $out['keywords'], 'Keywords not the same' );

}

/**

* @dataProvider data_stream

*

* @ticket 52826

* @ticket 52922

*

* @param string Stream's URI.

* @param array Expected metadata.

*/

public function test_stream( $file, $expected ) {

$actual = wp_read_image_metadata( $file );

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

}

public function data_stream() {

return array(

'Orientation only metadata' => array(

'file' => 'testimagemeta://wp_read_image_metadata/image1.jpg',

'metadata' => array(

'aperture' => '0',

'credit' => '',

'camera' => '',

'caption' => '',

'created_timestamp' => '0',

'copyright' => '',

'focal_length' => '0',

'iso' => '0',

'shutter_speed' => '0',

'title' => '',

'orientation' => '3',

'keywords' => array(),

),

),

'Exif from a Nikon D70 with IPTC data added later' => array(

'file' => 'testimagemeta://wp_read_image_metadata/image2.jpg',

'metadata' => array(

'aperture' => '6.3',

'credit' => 'IPTC Creator',

'camera' => 'NIKON D70',

'caption' => 'IPTC Caption',

'created_timestamp' => '1090516475',

'copyright' => 'IPTC Copyright',

'focal_length' => '18',

'iso' => '200',

'shutter_speed' => '0.04',

'title' => 'IPTC Headline',

'orientation' => '0',

'keywords' => array(),

),

),

'Exif from a DMC-LX2 camera with keywords' => array(

'file' => 'testimagemeta://wp_read_image_metadata/image3.jpg',

'metadata' => array(

'aperture' => '8',

'credit' => 'Photoshop Author',

'camera' => 'DMC-LX2',

'caption' => 'Photoshop Description',

'created_timestamp' => '1306315327',

'copyright' => 'Photoshop Copyrright Notice',

'focal_length' => '6.3',

'iso' => '100',

'shutter_speed' => '0.0025',

'title' => 'Photoshop Document Ttitle',

'orientation' => '1',

'keywords' => array( 'beach', 'baywatch', 'LA', 'sunset' ),

),

),

);

}

/**

* @ticket 54385

*/

public function test_exif_unexpected_data() {

// Unexpected Exif data: FNumber is "0/0", aperture should be 0.

$out = wp_read_image_metadata( DIR_TESTDATA . '/images/sugarloaf-mountain.jpg' );

$this->assertSame( '0', $out['aperture'], 'Aperture value not equivalent' );

$this->assertSame( '', $out['credit'], 'Credit value not the same' );

$this->assertSame( 'X-T1', $out['camera'], 'Camera value not the same' );

$this->assertSame( '', $out['caption'], 'Caption value not the same' );

$this->assertSame( '0', $out['created_timestamp'], 'Timestamp value not equivalent' );

$this->assertSame( '', $out['copyright'], 'Copyright value not the same' );

$this->assertSame( '50', $out['focal_length'], 'Focal length value not equivalent' );

$this->assertSame( '200', $out['iso'], 'Iso value not equivalent' );

$this->assertSame( '2', $out['shutter_speed'], 'Shutter speed value not equivalent' );

$this->assertSame( 'Sugarloaf Panorama', $out['title'], 'Title value not the same' );

}

}