diff --git a/core/log.class.inc.php b/core/log.class.inc.php
index cf7da8cdf..9fc2040ee 100644
--- a/core/log.class.inc.php
+++ b/core/log.class.inc.php
@@ -271,6 +271,8 @@ abstract class LogAPI
 //	const LEVEL_ALERT       = 'Alert';
 //	const LEVEL_EMERGENCY   = 'Emergency';
 
+	protected static $m_oMockMetaModelConfig = null;
+
 	protected static $aLevelsPriority = array(
 		self::LEVEL_DEBUG   => 100,
 		self::LEVEL_OK      => 150,
@@ -285,6 +287,12 @@ abstract class LogAPI
 		static::$m_oFileLog = new FileLog($sTargetFile);
 	}
 
+	public static function MockStaticObjects($oFileLog, $oMetaModelConfig=null)
+	{
+		static::$m_oFileLog = $oFileLog;
+		static::$m_oMockMetaModelConfig = $oMetaModelConfig;
+	}
+
 	public static function Error($sMessage, $sChannel = null, $aContext = array())
 	{
 		static::Log(self::LEVEL_ERROR, $sMessage, $sChannel, $aContext);
@@ -357,7 +365,7 @@ abstract class LogAPI
 	 */
 	private static function GetMinLogLevel($sChannel)
 	{
-		$oConfig = \MetaModel::GetConfig();
+		$oConfig = (static::$m_oMockMetaModelConfig === null) ? static::$m_oMockMetaModelConfig :  \MetaModel::GetConfig();
 		if (!$oConfig instanceof Config)
 		{
 			return self::LEVEL_OK;
diff --git a/test/core/LogAPITest.php b/test/core/LogAPITest.php
new file mode 100644
index 000000000..8e477c7b0
--- /dev/null
+++ b/test/core/LogAPITest.php
@@ -0,0 +1,120 @@
+<?php
+
+/**
+ * Created by PhpStorm.
+ * User: Eric
+ * Date: 31/08/2018
+ * Time: 17:03
+ */
+
+namespace Combodo\iTop\Test\UnitTest\Core;
+
+
+use Combodo\iTop\Test\UnitTest\ItopTestCase;
+
+/**
+ * @runTestsInSeparateProcesses
+ * @preserveGlobalState disabled
+ * @backupGlobals disabled
+ */
+class LogAPITest extends ItopTestCase
+{
+	private $mockFileLog;
+	private $oMetaModelConfig;
+
+	protected function setUp()
+	{
+		parent::setUp();
+		$this->mockFileLog = $this->createMock('FileLog');
+		$this->oMetaModelConfig = $this->createMock('Config');
+	}
+
+
+	/**
+	/**
+	 * @dataProvider LogApiProvider
+	 * @test
+	 * @backupGlobals disabled
+	 */
+	public function TestLogApi($oConfigObject, $sMessage, $Channel, $sExpectedLevel, $sExpectedMessage, $sExpectedChannel = '')
+	{
+		\IssueLog::MockStaticObjects($this->mockFileLog, $oConfigObject);
+
+		$this->mockFileLog->expects($this->exactly(1))
+			->method($sExpectedLevel)
+			->with($sExpectedMessage, $sExpectedChannel);
+
+		\IssueLog::Error($sMessage, $Channel);
+	}
+
+	public function LogApiProvider()
+	{
+		return [
+			[ $this->oMetaModelConfig, "log msg", '' , "Error", "log msg"],
+			[ $this->oMetaModelConfig, "log msg", 'PoudlardChannel' , "Error", "log msg", 'PoudlardChannel'],
+			[  array(), "log msg", '' , "Error", "log msg"], // Bruno?
+		];
+	}
+
+	/**
+	/** TODISCUSS
+	 * @test
+	 * @backupGlobals disabled
+	 */
+	public function TestUnknownLevel()
+	{
+		$this->mockFileLog->expects($this->exactly(1))
+			->method("Error")
+			->with("invalid log level 'TotoLevel'");
+
+		\IssueLog::Log('TotoLevel', "log msg");
+	}
+
+	/**
+	/**
+	 * @dataProvider LogWithChannelLogLevelApiProvider
+	 * @test
+	 * @backupGlobals disabled
+	 */
+	public function TestLogWithChannelLogLevelApi($expectedCallNb, $sExpectedLevel, $ConfigReturnedObject, $bExceptionRaised=false)
+	{
+		$this->oMetaModelConfig
+			->method("Get")
+			->with('log_level_min')
+			->willReturn($ConfigReturnedObject);
+
+		\IssueLog::MockStaticObjects($this->mockFileLog, $this->oMetaModelConfig);
+
+		$this->mockFileLog->expects($this->exactly($expectedCallNb))
+			->method($sExpectedLevel)
+			->with("log msg", "GaBuZoMeuChannel");
+
+		try{
+			\IssueLog::Warning("log msg", "GaBuZoMeuChannel");
+			if ($bExceptionRaised)
+			{
+				$this->fail("raised should have been raised");
+			}
+		}
+		catch(Exception $e)
+		{
+			if (!$bExceptionRaised)
+			{
+				$this->fail("raised should NOT have been raised");
+			}
+		}
+	}
+
+	public function LogWithChannelLogLevelApiProvider()
+	{
+		return [
+			[ 0, "Ok", ''],
+			[ 0, "Ok", 'TotoLevel'],
+			[ 0, "Ok", array()],
+			[ 0, "Ok", ["GaBuZoMeuChannel" => "TotoLevel"], true],
+			[ 1, "Error", ["GaBuZoMeuChannel" => "Error"]],
+			[ 0, "Info", ["GaBuZoMeuChannel" => "Info"]],
+		];
+	}
+
+}