diff --git a/tests/phpunit/tests/xmlrpc/wp/uploadFile.php b/tests/phpunit/tests/xmlrpc/wp/uploadFile.php
index e9e76322ec..409bbce0db 100644
--- a/tests/phpunit/tests/xmlrpc/wp/uploadFile.php
+++ b/tests/phpunit/tests/xmlrpc/wp/uploadFile.php
@@ -28,4 +28,31 @@ class Tests_XMLRPC_wp_uploadFile extends WP_XMLRPC_UnitTestCase {
 		$this->assertInternalType( 'string', $result['url'] );
 		$this->assertInternalType( 'string', $result['type'] );
 	}
+
+ 	/**
+	 * @ticket 21292
+	 */
+	function test_network_limit() {
+		$this->make_user_by_role( 'editor' );
+
+		update_option( 'blog_upload_space', 0.1 );
+
+		// create attachment
+		$filename = ( DIR_TESTDATA . '/images/canola.jpg' );
+		$contents = file_get_contents( $filename );
+		$data = array(
+			'name' => 'canola.jpg',
+			'type' => 'image/jpeg',
+			'bits' => $contents
+		);
+
+		$result = $this->myxmlrpcserver->mw_newMediaObject( array( 0, 'editor', 'editor', $data ) );
+
+		// Only multisite should have a limit
+		if ( is_multisite() ) {
+			$this->assertInstanceOf( 'IXR_Error', $result );
+		} else {
+			$this->assertNotInstanceOf( 'IXR_Error', $result );
+		}
+	}
 }