def METHOD_NAME(self):
    plugin = "path.to.MyLibrary;foo;bar , path.to.OtherLibrary"
    plugins = self.sl._string_to_modules(plugin)
    self.assertEqual(len(plugins), 2)
    self.assertEqual(plugins[0].module, "path.to.MyLibrary")
    self.assertEqual(plugins[0].args, ["foo", "bar"])
    self.assertEqual(plugins[1].module, "path.to.OtherLibrary")
    self.assertEqual(plugins[1].args, [])