Improved test coverage of daemon options object

Author: Andrew Carter

test/DaemonOptionsTest.php

@@ -31,6 +31,17 @@ public function testDaemonOptions()
         $this->assertEquals($timeLimit,    $options->getOption(DaemonOptions::TIME_LIMIT));
     }
 
+    /**
+     * Test that an InvalidArgumentException is thrown when an invalid logger
+     * is provided.
+     * 
+     * @expectedException \InvalidArgumentException
+     */
+    public function testInvalidLogger()
+    {
+        new DaemonOptions([DaemonOptions::LOGGER => 'foo']);
+    }
+
     /**
      * Test that an InvalidArgumentException is thrown when the object is
      * constructed with an unknown option.