Ticket #36416: 36416.diff

src/wp-includes/functions.php

@@ -591 +591 @@
  */
 function maybe_unserialize( $original ) {
         if ( is_serialized( $original ) ) { // Don't attempt to unserialize data that wasn't serialized going in.
-                return @unserialize( $original );
+                return @unserialize( trim( $original ) );
         }
         return $original;
 }

new file tests/phpunit/tests/functions/maybe_unserialize.php

@@ +1 @@
+<?php
+/**
+ * Test functions against maybe_unserialize.
+ * Tested scenarios:
+ *     1)
+ * @group functions.php
+ */
+
+if ( ! defined( 'WPINC' ) ) {
+        die;
+}
+
+
+class Tests_Functions_maybe_unserialize extends WP_UnitTestCase {
+
+        //Passing an array should return the same array back
+        public function test_maybe_unserialize_array() {
+                $expected = array(
+                        'start' => 'here',
+                        'end'   => 'here',
+                );
+
+                $this->assertEquals( $expected, maybe_unserialize( $expected ) );
+        }
+
+        //Tests normal string unserialization
+        public function test_maybe_unserialize_string() {
+                $this->assertEquals( 'string', maybe_unserialize( 'string' ) );
+
+                $this->assertEquals( '[string]', maybe_unserialize( '[string]' ) );
+
+                $this->assertEquals( '{s:5:"start";s:4:"here";s:3:"end";s:4:"here";}', maybe_unserialize( '{s:5:"start";s:4:"here";s:3:"end";s:4:"here";}' ) );
+
+        }
+
+        //Passing an int should return the same int
+        public function test_maybe_unserialize_int() {
+
+                $this->assertEquals( 100, maybe_unserialize( 100 ) );
+        }
+
+        //Passing null should return null
+        public function test_maybe_unserialize_null() {
+
+                $this->assertEquals( null, maybe_unserialize( null ) );
+        }
+
+        //Passing null should return null
+        public function test_maybe_unserialize_object() {
+                $object = new stdClass();
+
+                $this->assertEquals( $object, maybe_unserialize( $object ) );
+        }
+
+        public function test_maybe_unserialize_to_array() {
+                $expected = array(
+                        'start' => 'here',
+                        'end'   => 'here',
+                );
+
+                $this->assertEquals( $expected, maybe_unserialize( 'a:2:{s:5:"start";s:4:"here";s:3:"end";s:4:"here";}' ) );
+        }
+
+        public function test_maybe_unserialize_bad_serialized_string() {
+
+                // a:3 not a:2 as it should be
+                $this->assertFalse( maybe_unserialize( 'a:3:{s:5:"start";s:4:"here";s:3:"end";s:4:"here";}' ) );
+        }
+
+        public function test_maybe_unserialize_to_array_un_trimed() {
+                $expected = array(
+                        'start' => 'here',
+                        'end'   => 'here',
+                );
+
+                $this->assertEquals( $expected, maybe_unserialize( '    a:2:{s:5:"start";s:4:"here";s:3:"end";s:4:"here";}     ' ) );
+        }
+}
+ No newline at end of file