def METHOD_NAME(self):
    """Assert the ecosystem is not changed when the backend is set to same value."""
    project = models.Project(
        name="requests", homepage="https://pypi.org/requests", backend="PyPI"
    )
    Session.add(project)
    Session.commit()
    project = models.Project.query.all()[0]
    self.assertEqual("pypi", project.ecosystem_name)
    project.backend = "PyPI"
    Session.add(project)
    Session.commit()
    self.assertEqual("pypi", project.ecosystem_name)