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Python BaseSettings.get方法代码示例

本文整理汇总了Python中scrapy.settings.BaseSettings.get方法的典型用法代码示例。如果您正苦于以下问题:Python BaseSettings.get方法的具体用法?Python BaseSettings.get怎么用?Python BaseSettings.get使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在scrapy.settings.BaseSettings的用法示例。


在下文中一共展示了BaseSettings.get方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: BaseSettingsTest

# 需要导入模块: from scrapy.settings import BaseSettings [as 别名]
# 或者: from scrapy.settings.BaseSettings import get [as 别名]
class BaseSettingsTest(unittest.TestCase):

    if six.PY3:
        assertItemsEqual = unittest.TestCase.assertCountEqual

    def setUp(self):
        self.settings = BaseSettings()

    def test_set_new_attribute(self):
        self.settings.set('TEST_OPTION', 'value', 0)
        self.assertIn('TEST_OPTION', self.settings.attributes)

        attr = self.settings.attributes['TEST_OPTION']
        self.assertIsInstance(attr, SettingsAttribute)
        self.assertEqual(attr.value, 'value')
        self.assertEqual(attr.priority, 0)

    def test_set_settingsattribute(self):
        myattr = SettingsAttribute(0, 30) # Note priority 30
        self.settings.set('TEST_ATTR', myattr, 10)
        self.assertEqual(self.settings.get('TEST_ATTR'), 0)
        self.assertEqual(self.settings.getpriority('TEST_ATTR'), 30)

    def test_set_instance_identity_on_update(self):
        attr = SettingsAttribute('value', 0)
        self.settings.attributes = {'TEST_OPTION': attr}
        self.settings.set('TEST_OPTION', 'othervalue', 10)

        self.assertIn('TEST_OPTION', self.settings.attributes)
        self.assertIs(attr, self.settings.attributes['TEST_OPTION'])

    def test_set_calls_settings_attributes_methods_on_update(self):
        attr = SettingsAttribute('value', 10)
        with mock.patch.object(attr, '__setattr__') as mock_setattr, \
                mock.patch.object(attr, 'set') as mock_set:

            self.settings.attributes = {'TEST_OPTION': attr}

            for priority in (0, 10, 20):
                self.settings.set('TEST_OPTION', 'othervalue', priority)
                mock_set.assert_called_once_with('othervalue', priority)
                self.assertFalse(mock_setattr.called)
                mock_set.reset_mock()
                mock_setattr.reset_mock()

    def test_setitem(self):
        settings = BaseSettings()
        settings.set('key', 'a', 'default')
        settings['key'] = 'b'
        self.assertEqual(settings['key'], 'b')
        self.assertEqual(settings.getpriority('key'), 20)
        settings['key'] = 'c'
        self.assertEqual(settings['key'], 'c')
        settings['key2'] = 'x'
        self.assertIn('key2', settings)
        self.assertEqual(settings['key2'], 'x')
        self.assertEqual(settings.getpriority('key2'), 20)

    def test_setdict_alias(self):
        with mock.patch.object(self.settings, 'set') as mock_set:
            self.settings.setdict({'TEST_1': 'value1', 'TEST_2': 'value2'}, 10)
            self.assertEqual(mock_set.call_count, 2)
            calls = [mock.call('TEST_1', 'value1', 10),
                     mock.call('TEST_2', 'value2', 10)]
            mock_set.assert_has_calls(calls, any_order=True)

    def test_setmodule_only_load_uppercase_vars(self):
        class ModuleMock():
            UPPERCASE_VAR = 'value'
            MIXEDcase_VAR = 'othervalue'
            lowercase_var = 'anothervalue'

        self.settings.attributes = {}
        self.settings.setmodule(ModuleMock(), 10)
        self.assertIn('UPPERCASE_VAR', self.settings.attributes)
        self.assertNotIn('MIXEDcase_VAR', self.settings.attributes)
        self.assertNotIn('lowercase_var', self.settings.attributes)
        self.assertEqual(len(self.settings.attributes), 1)

    def test_setmodule_alias(self):
        with mock.patch.object(self.settings, 'set') as mock_set:
            self.settings.setmodule(default_settings, 10)
            mock_set.assert_any_call('TEST_DEFAULT', 'defvalue', 10)
            mock_set.assert_any_call('TEST_DICT', {'key': 'val'}, 10)

    def test_setmodule_by_path(self):
        self.settings.attributes = {}
        self.settings.setmodule(default_settings, 10)
        ctrl_attributes = self.settings.attributes.copy()

        self.settings.attributes = {}
        self.settings.setmodule(
            'tests.test_settings.default_settings', 10)

        self.assertItemsEqual(six.iterkeys(self.settings.attributes),
                              six.iterkeys(ctrl_attributes))

        for key in six.iterkeys(ctrl_attributes):
            attr = self.settings.attributes[key]
            ctrl_attr = ctrl_attributes[key]
#.........这里部分代码省略.........
开发者ID:q1ang,项目名称:scrapy,代码行数:103,代码来源:__init__.py


注:本文中的scrapy.settings.BaseSettings.get方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。