Update test to display the memory usage

Author: stillzombie

tests/CommandTest.php

@@ -54,27 +54,30 @@ public function test_request()
             'method' => 'GET',
             'url' => 'http://127.0.0.1/welcome',
             'statusCode' => '200',
+            'memory' => 23.43,
             'duration' => 10,
         ]);
 
         $command->requestInfo([
             'method' => 'POST',
             'url' => 'http://127.0.0.1:8080',
             'statusCode' => '404',
+            'memory' => 26.43,
             'duration' => 1234,
         ]);
 
         $command->requestInfo([
             'method' => 'POST',
             'url' => 'http://127.0.0.1:8080/'.str_repeat('foo', 100),
             'statusCode' => 500,
+            'memory' => 28.43,
             'duration' => 4567854,
         ]);
 
         $this->assertEquals(<<<'EOF'
-  200    GET /welcome .................. 10.00 ms
-  404    POST / ...................... 1234.00 ms
-  500    POST /foofoofoofoofoofo... 4567854.00 ms
+  200    GET /welcome ..........23.43 mb 10.00 ms
+  404    POST / ..............26.43 mb 1234.00 ms
+  500    POST /foofoofoofoofoofo... 23.46 mb 4567854.00 ms
 
 EOF, $output->fetch());
     }