Constructive description here

vendor/symfony/http-kernel/Tests/Exception/UnauthorizedHttpExceptionTest.php

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+<?php
+
+namespace Symfony\Component\HttpKernel\Tests\Exception;
+
+use Symfony\Component\HttpKernel\Exception\UnauthorizedHttpException;
+
+class UnauthorizedHttpExceptionTest extends HttpExceptionTest
+{
+    public function testHeadersDefault()
+    {
+        $exception = new UnauthorizedHttpException('Challenge');
+        $this->assertSame(array('WWW-Authenticate' => 'Challenge'), $exception->getHeaders());
+    }
+
+    /**
+     * @dataProvider headerDataProvider
+     */
+    public function testHeadersSetter($headers)
+    {
+        $exception = new UnauthorizedHttpException('Challenge');
+        $exception->setHeaders($headers);
+        $this->assertSame($headers, $exception->getHeaders());
+    }
+}