From c3b35bb187d99d77d9363ce9d0ccde1e1e063ffa Mon Sep 17 00:00:00 2001
From: Reedy <reedy@wikimedia.org>
Date: Mon, 16 Nov 2015 20:47:15 +0000
Subject: [PATCH] Improve error message if check not defined for a password
 policy.

Bug: T118776
Change-Id: Ic1826f15424197545f4d6c2b1af49adbc4289e15
---
 includes/password/UserPasswordPolicy.php | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/includes/password/UserPasswordPolicy.php b/includes/password/UserPasswordPolicy.php
index 80dc66920d..d57adb8e15 100644
--- a/includes/password/UserPasswordPolicy.php
+++ b/includes/password/UserPasswordPolicy.php
@@ -56,7 +56,7 @@ class UserPasswordPolicy {
 		foreach ( $checks as $statement => $check ) {
 			if ( !is_callable( $check ) ) {
 				throw new InvalidArgumentException(
-					'Policy check functions must be callable'
+					"Policy check functions must be callable. '$statement' isn't callable."
 				);
 			}
 			$this->policyCheckFunctions[$statement] = $check;
@@ -105,11 +105,18 @@ class UserPasswordPolicy {
 		);
 	}
 
+	/**
+	 * @param User $user
+	 * @param string $password
+	 * @param array $policies
+	 * @param array $policyCheckFunctions
+	 * @return Status
+	 */
 	private function checkPolicies( User $user, $password, $policies, $policyCheckFunctions ) {
 		$status = Status::newGood();
 		foreach ( $policies as $policy => $value ) {
 			if ( !isset( $policyCheckFunctions[$policy] ) ) {
-				throw new DomainException( 'Invalid password policy config' );
+				throw new DomainException( "Invalid password policy config. No check defined for '$policy'." );
 			}
 			$status->merge(
 				call_user_func(
-- 
2.20.1