@@ -1,7 +1,7 @@
 import logging
-import unittest
-
 import os
+import unittest
+from typing import List
 
 from doxygen import ConfigParser
 
@@ -13,6 +13,7 @@ def __init__(self, *args, **kwargs):
 logging.disable(logging.CRITICAL)
 self.doxyfile_original = os.path.join(os.path.dirname(__file__), "assets/Doxyfile")
 self.doxyfile_working = "./Doxyfile.tmp"
+self.doxyfile_clone = "./Cloned_Doxyfile.tmp"
 
 def test_try_use_not_existing_doxyfile(self):
 config_parser = ConfigParser()
@@ -22,6 +23,9 @@ def tearDown(self):
 if os.path.exists(self.doxyfile_working):
 os.remove(self.doxyfile_working)
 
+if os.path.exists(self.doxyfile_clone):
+os.remove(self.doxyfile_clone)
+
 def test_load_configuration(self):
 config_parser = ConfigParser()
 configuration = config_parser.load_configuration(self.doxyfile_original)
@@ -51,6 +55,47 @@ def test_update_configuration(self):
 self.assertEqual(configuration_updated['PROJECT_NUMBER'], '1.2.3.4')
 self.assertTrue("*.dtc" in configuration_updated['FILE_PATTERNS'])
 
+def test_multiline_option_with_empty_lines(self):
+configuration = self.get_configuration_from_lines([
+'MULTILINE_OPTION = \\',
+' \\',
+' line3',
+])
+
+self.assertEqual(['', '', 'line3'], configuration['MULTILINE_OPTION'])
+
+def test_multiline_option(self):
+configuration = self.get_configuration_from_lines([
+'MULTILINE_OPTION = line1 \\',
+' line2 \\',
+' line3',
+])
+
+self.assertEqual(['line1', 'line2', 'line3'], configuration['MULTILINE_OPTION'])
+
+def test_quoted_multiline_option(self):
+configuration = self.get_configuration_from_lines([
+'MULTILINE_OPTION = "line 1" \\',
+' "line 2" \\',
+' "line 3"',
+])
+
+self.assertEqual(['line 1', 'line 2', 'line 3'], configuration['MULTILINE_OPTION'])
+
+def get_configuration_from_lines(self, lines: List[str]) -> dict:
+"""Writes lines into a Doxyfile and reads it. This will also write and load the configuration again to check if
+the config_parser changes it
+"""
+with open(self.doxyfile_working, 'w') as io:
+io.write('\n'.join(lines))
+
+parser = ConfigParser()
+configuration = parser.load_configuration(self.doxyfile_working)
+parser.store_configuration(configuration, self.doxyfile_clone)
+other_configuration = parser.load_configuration(self.doxyfile_clone)
+self.assertEqual(configuration, other_configuration)
+return configuration
+
 
 if __name__ == '__main__':
 unittest.main()