Merge branch '3.4' into 4.3

* 3.4:
  Use supportsClass where possible

Author: nicolas-grekas

Tests/User/ChainUserProviderTest.php

@@ -68,31 +68,62 @@ public function testRefreshUser()
         $provider1 = $this->getProvider();
         $provider1
             ->expects($this->once())
-            ->method('refreshUser')
-            ->willThrowException(new UnsupportedUserException('unsupported'))
+            ->method('supportsClass')
+            ->willReturn(false)
         ;
 
         $provider2 = $this->getProvider();
+        $provider2
+            ->expects($this->once())
+            ->method('supportsClass')
+            ->willReturn(true)
+        ;
+
         $provider2
+            ->expects($this->once())
+            ->method('refreshUser')
+            ->willThrowException(new UnsupportedUserException('unsupported'))
+        ;
+
+        $provider3 = $this->getProvider();
+        $provider3
+            ->expects($this->once())
+            ->method('supportsClass')
+            ->willReturn(true)
+        ;
+
+        $provider3
             ->expects($this->once())
             ->method('refreshUser')
             ->willReturn($account = $this->getAccount())
         ;
 
-        $provider = new ChainUserProvider([$provider1, $provider2]);
+        $provider = new ChainUserProvider([$provider1, $provider2, $provider3]);
         $this->assertSame($account, $provider->refreshUser($this->getAccount()));
     }
 
     public function testRefreshUserAgain()
     {
         $provider1 = $this->getProvider();
+        $provider1
+            ->expects($this->once())
+            ->method('supportsClass')
+            ->willReturn(true)
+        ;
+
         $provider1
             ->expects($this->once())
             ->method('refreshUser')
             ->willThrowException(new UsernameNotFoundException('not found'))
         ;
 
         $provider2 = $this->getProvider();
+        $provider2
+            ->expects($this->once())
+            ->method('supportsClass')
+            ->willReturn(true)
+        ;
+
         $provider2
             ->expects($this->once())
             ->method('refreshUser')
@@ -107,13 +138,25 @@ public function testRefreshUserThrowsUnsupportedUserException()
     {
         $this->expectException('Symfony\Component\Security\Core\Exception\UnsupportedUserException');
         $provider1 = $this->getProvider();
+        $provider1
+            ->expects($this->once())
+            ->method('supportsClass')
+            ->willReturn(true)
+        ;
+
         $provider1
             ->expects($this->once())
             ->method('refreshUser')
             ->willThrowException(new UnsupportedUserException('unsupported'))
         ;
 
         $provider2 = $this->getProvider();
+        $provider2
+            ->expects($this->once())
+            ->method('supportsClass')
+            ->willReturn(true)
+        ;
+
         $provider2
             ->expects($this->once())
             ->method('refreshUser')
@@ -171,13 +214,25 @@ public function testSupportsClassWhenNotSupported()
     public function testAcceptsTraversable()
     {
         $provider1 = $this->getProvider();
+        $provider1
+            ->expects($this->once())
+            ->method('supportsClass')
+            ->willReturn(true)
+        ;
+
         $provider1
             ->expects($this->once())
             ->method('refreshUser')
             ->willThrowException(new UnsupportedUserException('unsupported'))
         ;
 
         $provider2 = $this->getProvider();
+        $provider2
+            ->expects($this->once())
+            ->method('supportsClass')
+            ->willReturn(true)
+        ;
+
         $provider2
             ->expects($this->once())
             ->method('refreshUser')

User/ChainUserProvider.php

@@ -73,6 +73,10 @@ public function refreshUser(UserInterface $user)
 
         foreach ($this->providers as $provider) {
             try {
+                if (!$provider->supportsClass(\get_class($user))) {
+                    continue;
+                }
+
                 return $provider->refreshUser($user);
             } catch (UnsupportedUserException $e) {
                 // try next one