minor #31553 [Ldap] add a test on parsing the rdn (Simperfit)

This PR was merged into the 4.3 branch.

Discussion
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[Ldap] add a test on parsing the rdn

| Q             | A
| ------------- | ---
| Branch?       | 4.3
| Bug fix?      | no
| New feature?  | no <!-- please update src/**/CHANGELOG.md files -->
| BC breaks?    | no     <!-- see https://symfony.com/bc -->
| Deprecations? | no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tests pass?   | yes    <!-- please add some, will be required by reviewers -->
| Fixed tickets | none   <!-- #-prefixed issue number(s), if any -->
| License       | MIT
| Doc PR        |  <!-- required for new features -->

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 - Bug fixes must be submitted against the lowest maintained branch where they apply
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One more test on the rdn directly.

- [x] When #31552 has been merged this one needs to be rebased.

Commits
-------

0abe32b085 [Ldap] add a test on parsing the rdn

src/Symfony/Component/Ldap/Tests/Adapter/ExtLdap/EntryManagerTest.php

@@ -17,6 +17,22 @@ use Symfony\Component\Ldap\Entry;
 
 class EntryManagerTest extends TestCase
 {
+    /**
+     * @expectedException \Symfony\Component\Ldap\Exception\LdapException
+     * @expectedExceptionMessage Entry "$$$$$$" malformed, could not parse RDN.
+     */
+    public function testMove()
+    {
+        $connection = $this->createMock(Connection::class);
+        $connection
+            ->expects($this->once())
+            ->method('isBound')->willReturn(true);
+
+        $entry = new Entry('$$$$$$');
+        $entryManager = new EntryManager($connection);
+        $entryManager->move($entry, 'a');
+    }
+
     /**
      * @expectedException \Symfony\Component\Ldap\Exception\NotBoundException
      * @expectedExceptionMessage Query execution is not possible without binding the connection first.