Question

在我的代码release_bundler.py文件中

class MavenDependenciesPathsBuilderStrategy(PathsBuilderStrategy):

  def build_bundler_copy_paths(self, mapping_values):
    source = join(getcwd(),'target','dependency',mapping_values[0])
    destination = join(getcwd(),'target','generated-resources',mapping_values[1],mapping_values[0])
    return [source, destination]

class NestedModulePathsFilterStrategy(FilterStrategy):

  def filter_changeset_paths(self, changeset_paths, bundling_map, paths_builder_strategy):
    for mapping_key in bundling_map.keys():
      if(mapping_key in changeset_paths):
        mapping_values = bundling_map.get(mapping_key).values()
        copy_paths = paths_builder_strategy.build_bundler_copy_paths(mapping_values)
        return copy_paths

如果我想测试filter_changeset_paths方法，我是否必须在getcwd方法中模拟两个build_bundler_copy_paths方法，还是仅模拟后者呢？

我尝试在测试release_bundler_test.py中模拟该方法，并导入如下所示的类：

from release_bundler import NestedModulePathsFilterStrategy, MavenDependenciesPathsBuilderStrategy

然后修补MavenDependenciesPathsBuilderStrategy类

def mock_build_bundler_copy_paths(self, mapping_values):
  return ['/cwd/foo','/cwd/bar']

@mock.patch('release_bundler.MavenDependenciesPathsBuilderStrategy', 'build_bundler_copy_paths', mock_build_bundler_copy_paths)
  def test_nested_module_filter_changeset_paths(self):
    pc_maps = {'ProcessingComponents/ProcessContainer':['ProcessContainerInstaller-bin.zip','SERVICES/Installer'],'ProcessingComponents/DataGrid':['ProcessContainerInstaller-bin.zip','SERVICES/Installer']}
    changed_paths =  ['ProcessingComponents/ProcessContainer/ProcessContainerRuntime/main/java/com/suntecgroup/tbms/container/ContainerException.java']
    filter_test = NestedModulePathsFilterStrategy()
    result = filter_test.filter_changeset_paths(changed_paths,pc_maps, MavenDependenciesPathsBuilderStrategy())
    self.assertIsNotNone(result)
    self.assertEquals(result[0], '/cwd/foo')
    self.assertEquals(result[0], '/cwd/bar')

但我认为此模拟无效，因为self.assertIsNotNone(result)失败

所以问题是：

我在嘲笑正确的方法吗？无法忍受
在MavenDependenciesPathsBuilderStrategy方法上进行模拟还是会在方法内部进行os.getcwd的模拟？

Answer 1

糟糕的是，我的新手python大脑花了一些时间来掌握一些东西：

这是很好的方式

  @mock.patch('release_bundler.MavenDependenciesPathsBuilderStrategy.build_bundler_copy_paths')
  def test_filters_pc_from_changeset_paths(self, mock_build_bundler_copy_paths):
    pc_maps = {'ProcessingComponents/ProcessContainer':['ProcessContainerInstaller-bin.zip','SERVICES/Installer']}
    changed_paths =  ['ProcessingComponents/ProcessContainer/ProcessContainerRuntime/main/java/com/suntecgroup/tbms/container/ContainerException.java']
    with mock.patch('release_bundler.NestedModulePathsFilterStrategy.do_copy') as mock_do_copy: 
      mock_do_copy.return_value = ''
      filter_test = NestedModulePathsFilterStrategy()
      filter_test.filter_changeset_paths(changed_paths,pc_maps, MavenDependenciesPathsBuilderStrategy())
      mock_build_bundler_copy_paths.assert_called_with(['ProcessContainerInstaller-bin.zip','SERVICES/Installer'])
      mock_do_copy.assert_called()

我可能是错的，但是我认为我们不能将多个装饰器应用于一个方法？

模拟python库或包装器方法

1 个答案: