add test code coverage

Author: milkmeowo

.gitignore

@@ -2,3 +2,4 @@
 .DS_Store
 vendor
 composer.lock
+reports

composer.json

@@ -29,7 +29,7 @@
         }
     },
     "scripts": {
-        "test": "phpunit"
+        "test": "phpunit --coverage-text --coverage-html reports/"
     },
     "extra": {
         "laravel": {

tests/MnsQueueTest.php

@@ -194,4 +194,18 @@ public function testGetQueueCanResolveWantedQueueNameOrReturnDefault()
         $this->assertEquals($this->queueName, $queue->getQueue(null));
         $this->assertEquals('somequeue', $queue->getQueue('somequeue'));
     }
+
+    public function testGetMnsCanReturnMnsAdapter()
+    {
+        $queue = new MnsQueue($this->mnsAdapter, $this->waitSeconds);
+        $this->assertInstanceOf(MnsAdapter::class, $queue->getMns());
+    }
+
+    public function testSizeShouldThrowException()
+    {
+        $queue = new MnsQueue($this->mnsAdapter, $this->waitSeconds);
+        $this->expectException(\Exception::class);
+        $this->expectExceptionMessage('The size method is not support for aliyun-mns');
+        $queue->size();
+    }
 }