minor #15893 Merged LegacySecurityContext tests (WouterJ)

This PR was merged into the 2.8 branch.

Discussion
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Merged LegacySecurityContext tests

I've no idea why this test was introduced in the wrong namespace in 2.8, but I merged it in the correct test case now.

Commits
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2c4da3c Merged LegacySecurityContext tests

Author: fabpot

src/Symfony/Component/Security/Core/Tests/LegacySecurityContextInterfaceTest.php

@@ -119,4 +119,14 @@ public function oldConstructorSignatureFailuresProvider()
             array(true, null),
         );
     }
+
+    /**
+     * Test if the BC Layer is working as intended.
+     */
+    public function testConstantSync()
+    {
+        $this->assertSame(Security::ACCESS_DENIED_ERROR, SecurityContextInterface::ACCESS_DENIED_ERROR);
+        $this->assertSame(Security::AUTHENTICATION_ERROR, SecurityContextInterface::AUTHENTICATION_ERROR);
+        $this->assertSame(Security::LAST_USERNAME, SecurityContextInterface::LAST_USERNAME);
+    }
 }