Index: tests/phpunit/includes/install.php
===================================================================
--- tests/phpunit/includes/install.php	(revision 32701)
+++ tests/phpunit/includes/install.php	(working copy)
@@ -15,6 +15,7 @@
 
 $_SERVER['SERVER_PROTOCOL'] = 'HTTP/1.1';
 $_SERVER['HTTP_HOST'] = WP_TESTS_DOMAIN;
+$_SERVER['REQUEST_METHOD'] = 'GET';
 $PHP_SELF = $GLOBALS['PHP_SELF'] = $_SERVER['PHP_SELF'] = '/index.php';
 
 require_once ABSPATH . '/wp-settings.php';
Index: tests/phpunit/includes/bootstrap.php
===================================================================
--- tests/phpunit/includes/bootstrap.php	(revision 32701)
+++ tests/phpunit/includes/bootstrap.php	(working copy)
@@ -37,6 +37,7 @@
 
 $_SERVER['SERVER_PROTOCOL'] = 'HTTP/1.1';
 $_SERVER['HTTP_HOST'] = WP_TESTS_DOMAIN;
+$_SERVER['REQUEST_METHOD'] = 'GET';
 $PHP_SELF = $GLOBALS['PHP_SELF'] = $_SERVER['PHP_SELF'] = '/index.php';
 
 if ( "1" == getenv( 'WP_MULTISITE' ) ||