diff --git a/README.md b/README.md
index ef8cd01..cd89009 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,8 @@ Add the following lines to your `composer.json` file and then run `php composer.
 }
 ```
 
+[Basic usage](docs/index.mkd)
+
 ## License
 
 Apache License 2.0. See [LICENSE](LICENSE) for details.
diff --git a/composer.json b/composer.json
index 3007985..d068f17 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
         "php": ">=5.3.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "~4.3.0"
+        "phpunit/phpunit": "~6"
     },
     "autoload": {
         "classmap" : ["src/Spamassassin/"]
diff --git a/docs/index.mkd b/docs/index.mkd
new file mode 100644
index 0000000..7e1bfb9
--- /dev/null
+++ b/docs/index.mkd
@@ -0,0 +1,29 @@
+# Using spamassasin PHP client
+
+PHP spamassasin client will connect to existing
+spam detection daemon and verify if message is a unwanted 
+spam or if it's a legit message the end user want to
+receive.
+
+To create instance of spamassasin PHP client, create
+new instance of `Client` class - this will use default 
+params which should connect to local spamassasin:
+
+```php
+use Spamassassin\Client;
+
+$client = new Client();
+``` 
+
+Then validate if message is market by spam by checking
+`$result` variable of type `Spamassassin\Result`:
+
+```php
+$result = $client->process($message);
+```
+
+The most important properties here are:
+
+* `isSpam` - whether spamassasin marked message as unwanted
+* `score` - received score
+* `threshold` - required score to be marked as spam
\ No newline at end of file
diff --git a/src/Spamassassin/Client.php b/src/Spamassassin/Client.php
index 57549e2..56259c8 100644
--- a/src/Spamassassin/Client.php
+++ b/src/Spamassassin/Client.php
@@ -24,6 +24,7 @@ class Client
 
     protected $hostname = 'localhost';
     protected $port     = '783';
+    protected $timeout  = null;
 
     protected $socketPath;
     protected $socket;
@@ -60,6 +61,11 @@ protected function getSocket()
             $socket = fsockopen($this->hostname, $this->port, $errno, $errstr);
         }
 
+        if(!empty($this->timeout))
+        {
+            stream_set_timeout($socket, $this->timeout);
+        }
+
         if (!$socket) {
             throw new Exception(
                 "Could not connect to SpamAssassin: {$errstr}", $errno
@@ -215,6 +221,7 @@ protected function parseOutput($header, $message)
 
             $result->score    = (float) $matches[2];
             $result->thresold = (float) $matches[3];
+            $result->threshold = (float) $matches[3];
         } else {
 
             /**
@@ -234,6 +241,7 @@ protected function parseOutput($header, $message)
 
                     $result->score    = (float) $matches[2];
                     $result->thresold = (float) $matches[3];
+                    $result->threshold = (float) $matches[3];
                 }
 
         }
diff --git a/src/Spamassassin/Client/Result.php b/src/Spamassassin/Client/Result.php
index 4780ce8..838f0bb 100644
--- a/src/Spamassassin/Client/Result.php
+++ b/src/Spamassassin/Client/Result.php
@@ -49,14 +49,20 @@ class Result
 
     /**
      * How many points the message must score to be considered spam
-     * 
+     *
      * @var float
      */
+    public $threshold;
+
+    /**
+     * Typo kept for backward compat.
+     * @see $threshold
+     */
     public $thresold;
 
     /**
      * Is it spam or not?
-     * 
+     *
      * @var boolean
      */
     public $isSpam;
diff --git a/tests/BaseTestCase.php b/tests/BaseTestCase.php
index c5b5407..c6b46e8 100644
--- a/tests/BaseTestCase.php
+++ b/tests/BaseTestCase.php
@@ -1,7 +1,9 @@
 <?php
+
+use PHPUnit\Framework\TestCase;
 use Spamassassin\Client;
 
-class BaseTestCase extends PHPUnit_Framework_TestCase
+class BaseTestCase extends TestCase
 {
     /** @var Client */
     protected $sa;
@@ -25,6 +27,8 @@ public function setUp()
             );
         }
 
+        $params['timeout'] = 3;
+
         $params["protocolVersion"] = $GLOBALS["PHPUNIT_SA_PROTOCOL_VERSION"];
         $this->params = $params;
         $this->sa     = new Client($params);
diff --git a/tests/CheckTest.php b/tests/CheckTest.php
index d63ff04..f3eb83f 100644
--- a/tests/CheckTest.php
+++ b/tests/CheckTest.php
@@ -8,7 +8,7 @@ public function testShouldBeAbleToCheckSpamMessage()
         $return  = $this->sa->check($message);
 
         $this->assertTrue($return->isSpam);
-        $this->assertEquals(5.0,    $return->thresold);
+        $this->assertEquals(5.0,    $return->threshold);
         $this->assertTrue($return->score >= 1000);
     }
 
diff --git a/tests/LearnDisabledTest.php b/tests/LearnDisabledTest.php
index 378fd09..dc08c5c 100644
--- a/tests/LearnDisabledTest.php
+++ b/tests/LearnDisabledTest.php
@@ -36,14 +36,14 @@ public function setUp()
     public function testShouldThrowExceptionIfLearningIsDisabled()
     {
         $message = $this->getMessage('Spam_GTUBE.txt');
-        $this->setExpectedException('Spamassassin\Client\Exception');
+        $this->expectException('Spamassassin\Client\Exception');
         $this->sa->learn($message, Client::LEARN_SPAM);
     }
 
     public function testShouldThrowExceptionWhenForgettingIfLearningIsDisabled()
     {
         $message = $this->getMessage('Spam_GTUBE.txt');
-        $this->setExpectedException('Spamassassin\Client\Exception');
+        $this->expectException('Spamassassin\Client\Exception');
         $this->sa->learn($message, Client::LEARN_FORGET);
     }
 
diff --git a/tests/MaxSizeTest.php b/tests/MaxSizeTest.php
index 8e49369..7865419 100644
--- a/tests/MaxSizeTest.php
+++ b/tests/MaxSizeTest.php
@@ -6,7 +6,7 @@ class MaxSizeTest extends BaseTestCase
 {
     public function testShouldThrowExceptionIfMessageExceedsMaxSize()
     {
-        $this->setExpectedException('Spamassassin\Client\Exception');
+        $this->expectException('Spamassassin\Client\Exception');
 
         $params = $this->params;
 
diff --git a/tests/SpamReportTest.php b/tests/SpamReportTest.php
index 60dc26c..9e0acf6 100644
--- a/tests/SpamReportTest.php
+++ b/tests/SpamReportTest.php
@@ -5,7 +5,7 @@ public function testShouldReturnReportIfMessageIsSpam()
     {
         $report = $this->sa->getSpamReport($this->gtube);
 
-        $this->assertContains("Content preview:",  $report->message);
+        $this->assertContains("1000.0",  $report->message);
         $this->assertContains("1000 GTUBE",        $report->message);
         $this->assertTrue($report->isSpam);
     }