def test_no_missing_packages(self):
driver = nova_module.NovaPowerDriver()
mock = self.patch(driver, "try_novaapi_import")
mock.return_value = True
missing = driver.detect_missing_packages()
self.assertItemsEqual([], missing)
def test_missing_packages(self):
driver = nova_module.NovaPowerDriver()
mock = self.patch(driver, 'try_novaapi_import')
mock.return_value = False
missing = driver.detect_missing_packages()
self.assertItemsEqual(['python3-novaclient'], missing)