diff --git a/tests/phpunit/tests/image/functions.php b/tests/phpunit/tests/image/functions.php
index cbacec809e..4a7713d52b 100644
--- a/tests/phpunit/tests/image/functions.php
+++ b/tests/phpunit/tests/image/functions.php
@@ -423,7 +423,10 @@ class Tests_Image_Functions extends WP_UnitTestCase {
 		$test_file = '/tmp/wordpress-gsoc-flyer.pdf';
 		copy( $orig_file, $test_file );
 
-		$this->assertNotWPError( wp_get_image_editor( $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,
@@ -490,7 +493,10 @@ class Tests_Image_Functions extends WP_UnitTestCase {
 		$test_file = get_temp_dir() . 'wordpress-gsoc-flyer.pdf';
 		copy( $orig_file, $test_file );
 
-		$this->assertNotWPError( wp_get_image_editor( $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,
@@ -552,7 +558,10 @@ class Tests_Image_Functions extends WP_UnitTestCase {
 		$test_file = '/tmp/wordpress-gsoc-flyer.pdf';
 		copy( $orig_file, $test_file );
 
-		$this->assertNotWPError( wp_get_image_editor( $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,
@@ -614,7 +623,10 @@ class Tests_Image_Functions extends WP_UnitTestCase {
 		$pdf_path = '/tmp/test.pdf';
 		copy( DIR_TESTDATA . '/images/wordpress-gsoc-flyer.pdf', $pdf_path );
 
-		$this->assertNotWPError( wp_get_image_editor( $pdf_path ) );
+		$editor = wp_get_image_editor( $pdf_path );
+		if ( is_wp_error( $editor ) ) {
+			$this->markTestSkipped( $editor->get_error_message() );
+		}
 
 		$attachment_id = $this->factory->attachment->create_object(
 			$pdf_path,