Tests: Temporarily skip PDF tests if they fail due to ImageMagick permission errors.

Merges [48338], [48341] to the 5.0 branch.

See #50573.

git-svn-id: https://develop.svn.wordpress.org/branches/5.0@48486 602fd350-edb4-49c9-b593-d223f7449a82

Author: SergeyBiryukov

tests/phpunit/tests/image/functions.php

@@ -371,6 +371,11 @@ public function test_wp_generate_attachment_metadata_pdf() {
 		$test_file = '/tmp/wordpress-gsoc-flyer.pdf';
 		copy( $orig_file, $test_file );
 
+		$editor = wp_get_image_editor( $test_file );
+		if ( is_wp_error( $editor ) ) {
+			$this->markTestSkipped( $editor->get_error_message() );
+		}
+
 		$attachment_id = $this->factory->attachment->create_object( $test_file, 0, array(
 			'post_mime_type' => 'application/pdf',
 		) );
@@ -432,6 +437,11 @@ public function test_crop_setting_for_pdf() {
 		$test_file = get_temp_dir() . 'wordpress-gsoc-flyer.pdf';
 		copy( $orig_file, $test_file );
 
+		$editor = wp_get_image_editor( $test_file );
+		if ( is_wp_error( $editor ) ) {
+			$this->markTestSkipped( $editor->get_error_message() );
+		}
+
 		$attachment_id = $this->factory->attachment->create_object(
 			$test_file, 0, array(
 				'post_mime_type' => 'application/pdf',
@@ -490,6 +500,11 @@ public function test_fallback_intermediate_image_sizes() {
 		$test_file = '/tmp/wordpress-gsoc-flyer.pdf';
 		copy( $orig_file, $test_file );
 
+		$editor = wp_get_image_editor( $test_file );
+		if ( is_wp_error( $editor ) ) {
+			$this->markTestSkipped( $editor->get_error_message() );
+		}
+
 		$attachment_id = $this->factory->attachment->create_object( $test_file, 0, array(
 			'post_mime_type' => 'application/pdf',
 		) );
@@ -545,6 +560,11 @@ public function test_pdf_preview_doesnt_overwrite_existing_jpeg() {
 		$pdf_path = '/tmp/test.pdf';
 		copy( DIR_TESTDATA . '/images/wordpress-gsoc-flyer.pdf', $pdf_path );
 
+		$editor = wp_get_image_editor( $test_file );
+		if ( is_wp_error( $editor ) ) {
+			$this->markTestSkipped( $editor->get_error_message() );
+		}
+
 		$attachment_id = $this->factory->attachment->create_object( $pdf_path, 0, array(
 			'post_mime_type' => 'application/pdf',
 		) );