Ticket #10377: 10377.6.diff

src/wp-includes/comment.php

@@ -966 +966 @@
         } elseif ( is_array( $col_length ) && isset( $col_length['length'] ) && intval( $col_length['length'] ) > 0 ) {
                 $max_length = (int) $col_length['length'];
         } else {
-                $max_length = 255;
+                // Assume a TEXT column, 65535 - 10.
+                $max_length = 65525;
         }
 
         if ( ! empty( $col_length['type'] ) && 'byte' === $col_length['type'] ) {

tests/phpunit/tests/comment.php

@@ -672 +672 @@
                 $this->assertSame( '111.111.1.1', $updated->comment_author_IP );
                 $this->assertSame( 'SHIELD_AGENT', $updated->comment_agent );
         }
+
+        public function test_wp_get_comment_column_max_length() {
+                $columns = array(
+                        'comment_author' => 245,
+                        'comment_author_email' => 100,
+                        'comment_author_url' => 200,
+                        'comment_author_IP' => 100,
+                        'comment_content' => 65525,
+                        'comment_approved' => 20,
+                        'comment_agent' => 255,
+                        'comment_type' => 20,
+                );
+
+                foreach ( $columns as $column => $expected ) {
+                        $max_length = wp_get_comment_column_max_length( $column );
+                        $this->assertSame( $expected, $max_length );
+                }
+        }
 }