Test for #13

Upgraded the minimun php-http/message version to allow
dependencies installation.

Author: ajgarlag

tests/StreamTest.php

@@ -144,4 +144,14 @@ public function testClose()
 
         $this->assertFalse(is_resource($socket));
     }
+
+    public function testRead()
+    {
+        $stream = $this->createSocket("Body");
+
+        $this->assertEquals("Bod", $stream->read(3));
+        $this->assertEquals("y", $stream->read(3));
+
+        $stream->close();
+    }
 }