Updates phpunit to v8

Author: pdscopes

.gitignore

@@ -3,4 +3,5 @@
 
 /examples/.env
 composer.lock
-phpunit.xml
+phpunit.xml
+.phpunit.result.cache

composer.json

@@ -27,7 +27,7 @@
         "predis/predis": "Allow Redis Queue"
     },
     "require-dev": {
-        "phpunit/phpunit": "^6.5",
+        "phpunit/phpunit": "^8",
         "cache/cache": "~1.0",
         "monolog/monolog": "^1.23",
         "symfony/console": "~3.2",

tests/Unit/Queue/MysqlQueueTest.php

@@ -19,7 +19,7 @@ class MysqlQueueTest extends TestCase
      */
     protected $mockPdoStatement;
 
-    protected function setUp()
+    protected function setUp(): void
     {
         parent::setUp();
 

tests/Unit/Queue/RabbitmqQueueTest.php

@@ -22,7 +22,7 @@ class RabbitmqQueueTest extends TestCase
      */
     protected $mockChannel;
 
-    protected function setUp()
+    protected function setUp(): void
     {
         parent::setUp();
 

tests/Unit/Queue/RedisQueueTest.php

@@ -15,7 +15,7 @@ class RedisQueueTest extends TestCase
      */
     protected $mockClient;
 
-    protected function setUp()
+    protected function setUp(): void
     {
         parent::setUp();
 
@@ -54,7 +54,7 @@ public function testAddWithDelay()
         $this->mockClient
             ->expects($this->at(0))
             ->method('__call')
-            ->with('zadd', [$task->queue() . '-delayed', time() + $task->delay(), $task->serialize()])
+            ->with('zadd', [$task->queue() . '-delayed', [time() + $task->delay(), $task->serialize()]])
             ->willReturn(1);
 
 

tests/Unit/TaskTest.php

@@ -75,7 +75,7 @@ public function testSerialize()
         $task = new TestTask();
         $serialized = $task->serialize();
 
-        $this->assertInternalType('string', $serialized);
+        $this->assertIsString($serialized);
         $this->assertJson($serialized);
     }
 }

tests/Unit/WorkerTest.php

@@ -21,7 +21,7 @@ class WorkerTest extends TestCase
      */
     protected $mockLogger;
 
-    protected function setUp()
+    protected function setUp(): void
     {
         parent::setUp();