MAGETWO-66414: Remove usages of serialize/unserialize in framework

- Replace usage of serialize with mock strings

Author: tjwiebell

lib/internal/Magento/Framework/App/Test/Unit/Response/HttpTest.php

@@ -84,9 +84,8 @@ protected function tearDown()
 
     public function testSendVary()
     {
-        $data = ['some-vary-key' => 'some-vary-value'];
         $expectedCookieName = Http::COOKIE_VARY_STRING;
-        $expectedCookieValue = sha1(serialize($data));
+        $expectedCookieValue = 'SHA1 Serialized String';
         $sensitiveCookieMetadataMock = $this->getMockBuilder(
             \Magento\Framework\Stdlib\Cookie\SensitiveCookieMetadata::class)
             ->disableOriginalConstructor()

lib/internal/Magento/Framework/Filter/Test/Unit/TemplateTest.php

@@ -149,9 +149,7 @@ public function varDirectiveDataProvider()
 
         $stub->expects($this->once())
             ->method('bar')
-            ->will($this->returnCallback(function ($arg) {
-                return serialize($arg);
-            }));
+            ->willReturn('Mocked Method Return');
 
         return [
             'no variables' => [
@@ -177,14 +175,7 @@ public function varDirectiveDataProvider()
                     'b' => 'bee',
                     'd' => 'dee',
                 ],
-                serialize([
-                    'param_1' => 'value_1',
-                    'param_2' => 'lorem',
-                    'param_3' => [
-                        'a' => 'bee',
-                        'c' => 'dee',
-                    ],
-                ]),
+                'Mocked Method Return'
             ],
         ];
     }