Make tests work with 4.8 at least

autotest-external.sh

 }
 
 if ! [ -x "$PHPUNIT" ]; then
-	echo "phpunit executable not found, please install phpunit version >= 3.7" >&2
+	echo "phpunit executable not found, please install phpunit version >= 4.8" >&2
 	exit 3
 fi
 
 PHPUNIT_MAJOR_VERSION=$(echo $PHPUNIT_VERSION | cut -d"." -f1)
 PHPUNIT_MINOR_VERSION=$(echo $PHPUNIT_VERSION | cut -d"." -f2)
 
-if ! [ $PHPUNIT_MAJOR_VERSION -gt 4 -o \( $PHPUNIT_MAJOR_VERSION -eq 4 -a $PHPUNIT_MINOR_VERSION -ge 4 \) ]; then
-	echo "phpunit version >= 4.4 required. Version found: $PHPUNIT_VERSION" >&2
+if ! [ $PHPUNIT_MAJOR_VERSION -gt 4 -o \( $PHPUNIT_MAJOR_VERSION -eq 4 -a $PHPUNIT_MINOR_VERSION -ge 8 \) ]; then
+	echo "phpunit version >= 4.8 required. Version found: $PHPUNIT_VERSION" >&2
 	exit 4
 fi
 

autotest.sh

 fi
 
 if ! [ -x "$PHPUNIT" ]; then
-	echo "phpunit executable not found, please install phpunit version >= 4.4" >&2
+	echo "phpunit executable not found, please install phpunit version >= 4.8" >&2
 	exit 3
 fi
 
 PHPUNIT_MAJOR_VERSION=$(echo "$PHPUNIT_VERSION" | cut -d"." -f1)
 PHPUNIT_MINOR_VERSION=$(echo "$PHPUNIT_VERSION" | cut -d"." -f2)
 
-if ! [ "$PHPUNIT_MAJOR_VERSION" -gt 4 -o \( "$PHPUNIT_MAJOR_VERSION" -eq 4 -a "$PHPUNIT_MINOR_VERSION" -ge 4 \) ]; then
-	echo "phpunit version >= 4.4 required. Version found: $PHPUNIT_VERSION" >&2
+if ! [ "$PHPUNIT_MAJOR_VERSION" -gt 4 -o \( "$PHPUNIT_MAJOR_VERSION" -eq 4 -a "$PHPUNIT_MINOR_VERSION" -ge 8 \) ]; then
+	echo "phpunit version >= 4.8 required. Version found: $PHPUNIT_VERSION" >&2
 	exit 4
 fi
 

tests/lib/TestCase.php

 	/** @var array */
 	protected $services = [];
 
+	/**
+	 * Wrapper to be forward compatible to phpunit 5.4+
+	 *
+	 * @param string $originalClassName
+	 * @return \PHPUnit_Framework_MockObject_MockObject
+	 */
+	protected function createMock($originalClassName) {
+		if (is_callable('parent::createMock')) {
+			return parent::createMock($originalClassName);
+		}
+
+		return $this->getMockBuilder($originalClassName)
+			->disableOriginalConstructor()
+			->disableOriginalClone()
+			->disableArgumentCloning()
+			->getMock();
+	}
+
 	/**
 	 * @param string $name
 	 * @param mixed $newService