Added worker test

tests/worker.php

@@ -0,0 +1,44 @@
+<?php
+
+    require 'ncc';
+    require __DIR__ . DIRECTORY_SEPARATOR . 'ExampleClass.php';
+    import('net.nosial.tamerlib');
+
+    // Initialize as a worker, will fail if the process is executed directly
+    \TamerLib\tm::initalize(\TamerLib\Enums\TamerMode::WORKER);
+
+    // Callback Examples
+    \TamerLib\tm::addFunction('sleep', function($sleep_time){
+        sleep($sleep_time);
+        return $sleep_time;
+    });
+    \TamerLib\tm::addFunction('calculate_pi', function($iterations){
+        $pi = 0;
+        $sign = 1;
+        for($i = 0; $i < $iterations; $i++)
+        {
+            $pi += $sign * (1 / (2 * $i + 1));
+            $sign *= -1;
+        }
+        return $pi * 4;
+    });
+
+    // Function pointer examples
+    $example_class = new ExampleClass();
+    \TamerLib\tm::addFunction('getValue', [$example_class, 'get']);
+    \TamerLib\tm::addFunction('setValue', [$example_class, 'set']);
+    \TamerLib\tm::addFunction('valueExists', [$example_class, 'exists']);
+    \TamerLib\tm::addFunction('clearValues', [$example_class, 'clear']);
+
+    // Run forest, run!
+    while (true)
+    {
+        try
+        {
+            \TamerLib\tm::run();
+        }
+        catch(Exception $e)
+        {
+            print($e->getMessage() . PHP_EOL);
+        }
+    }