Replace calls to setExpectedException by Pollyfill

Author: jderusse

Tests/CookieTest.php

@@ -12,10 +12,13 @@
 namespace Symfony\Component\BrowserKit\Tests;
 
 use PHPUnit\Framework\TestCase;
+use Symfony\Bridge\PhpUnit\ForwardCompatTestTrait;
 use Symfony\Component\BrowserKit\Cookie;
 
 class CookieTest extends TestCase
 {
+    use ForwardCompatTestTrait;
+
     public function testToString()
     {
         $cookie = new Cookie('foo', 'bar', strtotime('Fri, 20-May-2011 15:25:52 GMT'), '/', '.myfoodomain.com', true);
@@ -100,7 +103,7 @@ public function testFromStringWithUrl()
 
     public function testFromStringThrowsAnExceptionIfCookieIsNotValid()
     {
-        $this->{method_exists($this, $_ = 'expectException') ? $_ : 'setExpectedException'}('InvalidArgumentException');
+        $this->expectException('InvalidArgumentException');
         Cookie::fromString('foo');
     }
 
@@ -113,7 +116,7 @@ public function testFromStringIgnoresInvalidExpiresDate()
 
     public function testFromStringThrowsAnExceptionIfUrlIsNotValid()
     {
-        $this->{method_exists($this, $_ = 'expectException') ? $_ : 'setExpectedException'}('InvalidArgumentException');
+        $this->expectException('InvalidArgumentException');
         Cookie::fromString('foo=bar', 'foobar');
     }