diff --git a/code/tests/CMSWorkflowSiteConfigDecoratorTest.php b/code/tests/CMSWorkflowSiteConfigDecoratorTest.php
new file mode 100644
index 0000000..df47984
--- /dev/null
+++ b/code/tests/CMSWorkflowSiteConfigDecoratorTest.php
@@ -0,0 +1,124 @@
+<?php
+class CMSWorkflowSiteConfigDecoratorTest extends SapphireTest {
+	
+	protected $workflowConfigPath = "";
+	
+	function setUp() {
+		// Change CMSWorkflow config file path to test directory so it doesn't mess up with the real config file
+		$this->workflowConfigPath = dirname(__FILE__) . "/CMSWorkflow_Config.cfg";
+		CMSWorkflowSiteConfigDecorator::$config_file_path = $this->workflowConfigPath;
+	}
+	
+	function testGetConfigFile() {
+		$file = CMSWorkflowSiteConfigDecorator::get_config_file();
+		$content = $this->readFile($this->workflowConfigPath);
+
+		// the size and the content of the initial config file are the same CMSWorkflowSiteConfigDecorator::$default_config's 
+		$workflowDefaultConfig = CMSWorkflowSiteConfigDecorator::$default_config;
+		$this->assertEquals($workflowDefaultConfig, $content);
+		
+		fclose($file);
+	}
+	
+	function testGetConfigContent() {
+		$content = CMSWorkflowSiteConfigDecorator::get_config_content();
+		$content2 = $this->readFile($this->workflowConfigPath);
+		
+		$this->assertEquals($content, $content2);
+	}
+	
+	function testWriteConfigFile() {
+		CMSWorkflowSiteConfigDecorator::write_config_file("New workflow config");
+		$content = $this->readFile($this->workflowConfigPath);
+		$this->assertEquals("New workflow config", $content);
+		
+		CMSWorkflowSiteConfigDecorator::write_config_file("New workflow config two");
+		$content = $this->readFile($this->workflowConfigPath);
+		$this->assertEquals("New workflow config two", $content);
+		
+		CMSWorkflowSiteConfigDecorator::write_config_file("Config three");
+		$content = $this->readFile($this->workflowConfigPath);
+		$this->assertEquals("Config three", $content);
+	}
+	
+	function testGetConfig() {
+		$content = "STEP = twostep\nTESTCONFIG = test";
+		
+		$value = CMSWorkflowSiteConfigDecorator::get_config($content, "STEP");
+		$this->assertEquals("twostep", $value);
+		
+		$value = CMSWorkflowSiteConfigDecorator::get_config($content, "TESTCONFIG");
+		$this->assertEquals("test", $value);
+		
+		$value = CMSWorkflowSiteConfigDecorator::get_config($content, "NOTEXISTING");
+		$this->assertEquals("", $value);
+	}
+	
+	function testWriteConfig() {
+		$content = "STEP = twostep\nTESTCONFIG = test";
+		
+		$newContent = CMSWorkflowSiteConfigDecorator::set_config($content, "STEP", 'threestep');
+		$this->assertEquals("STEP = threestep\nTESTCONFIG = test", $newContent);
+		
+		$newContent = CMSWorkflowSiteConfigDecorator::set_config($content, "TESTCONFIG", '');
+		$this->assertEquals("STEP = twostep\nTESTCONFIG = ", $newContent);
+		
+		$newContent = CMSWorkflowSiteConfigDecorator::set_config($content, "NEWCONFIG", 'newstuff');
+		$this->assertEquals("STEP = twostep\nTESTCONFIG = test\nNEWCONFIG = newstuff", $newContent);
+	}
+	
+	function testGetStepConfig() {
+		$value = CMSWorkflowSiteConfigDecorator::get_step_config();
+		$this->assertEquals("twostep", $value);
+	}
+	
+	function testSetStepConfig() {
+		CMSWorkflowSiteConfigDecorator::set_step_config("threestep");
+		$content = $this->readFile($this->workflowConfigPath);
+		$this->assertEquals("STEP = threestep", $content);
+		
+		CMSWorkflowSiteConfigDecorator::set_step_config("");
+		$content = $this->readFile($this->workflowConfigPath);
+		$this->assertEquals("STEP = ", $content);
+		
+		CMSWorkflowSiteConfigDecorator::set_step_config("twostep");
+		$content = $this->readFile($this->workflowConfigPath);
+		$this->assertEquals("STEP = twostep", $content);
+	}
+		
+	function tearDown() {
+		// delete the config file before begin the test 
+		$path = CMSWorkflowSiteConfigDecorator::get_config_file_path();
+		if(file_exists($path)) {
+			unlink(CMSWorkflowSiteConfigDecorator::get_config_file_path());
+		}
+		
+		// Remove custom CMSWorkflow config file path
+		CMSWorkflowSiteConfigDecorator::$config_file_path = '';
+	}
+	
+	/**
+	 * Read the whole content of a (text) file. 
+	 * Having this method so that we can avoid relying on CMSWorkflowSiteConfigDecorator::get_config_content()
+	 * @return string - content of the file
+	 */
+	private function readFile($path) {
+		// create if not existing
+		if(!file_exists($path)) {
+			return array(null, null);
+		}
+		
+		$file = fopen($path, 'r');
+		
+		$content = null;
+		while(!feof($file)) {
+			$content .= fread($file, 10);
+		}
+		
+		fclose($file);
+		
+		return $content;
+	}
+
+	
+}
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