Python 应用程序引擎单元测试:导入错误:启动目录不可导入
我正试图通过使用Google App Engine在本地Python单元测试页面()上的确切代码来学习单元测试。但是,我无法找出这个错误:Python 应用程序引擎单元测试:导入错误:启动目录不可导入,python,unit-testing,google-app-engine,Python,Unit Testing,Google App Engine,我正试图通过使用Google App Engine在本地Python单元测试页面()上的确切代码来学习单元测试。但是,我无法找出这个错误: ImportError: Start directory is not importable: 'testmem.py' 我只是在一个名为testmem.py的文件中使用他们的简单测试框架testrunner.py和他们的数据存储和Memcache测试。我从项目根目录调用测试,如下所示: <me>$ python testrunner.py
ImportError: Start directory is not importable: 'testmem.py'
我只是在一个名为testmem.py的文件中使用他们的简单测试框架testrunner.py和他们的数据存储和Memcache测试。我从项目根目录调用测试,如下所示:
<me>$ python testrunner.py ~/google_appengine testmem.py
有人能告诉我我做错了什么吗?提前谢谢
完整错误消息:
Traceback (most recent call last):
File "testrunner.py", line 30, in <module>
main(SDK_PATH, TEST_PATH)
File "testrunner.py", line 17, in main
suite = unittest.loader.TestLoader().discover(test_path)
File "/usr/lib/python2.7/unittest/loader.py", line 204, in discover
raise ImportError('Start directory is not importable: %r' % start_dir)
ImportError: Start directory is not importable: 'testmem.py'
testmem.py:
import unittest
from google.appengine.api import memcache
from google.appengine.ext import db
from google.appengine.ext import testbed
class TestModel(db.Model):
"""A model class used for testing."""
number = db.IntegerProperty(default=42)
text = db.StringProperty()
class TestEntityGroupRoot(db.Model):
"""Entity group root"""
pass
def GetEntityViaMemcache(entity_key):
"""Get entity from memcache if available, from datastore if not."""
entity = memcache.get(entity_key) # @UndefinedVariable
if entity is not None:
return entity
entity = TestModel.get(entity_key)
if entity is not None:
memcache.set(entity_key, entity) # @UndefinedVariable
return entity
class DemoTestCase(unittest.TestCase):
def setUp(self):
# First, create an instance of the Testbed class.
self.testbed = testbed.Testbed()
# Then activate the testbed, which prepares the service stubs for use.
self.testbed.activate()
# Next, declare which service stubs you want to use.
self.testbed.init_datastore_v3_stub()
self.testbed.init_memcache_stub()
def tearDown(self):
self.testbed.deactivate()
def testInsertEntity(self):
TestModel().put()
self.assertEqual(1, len(TestModel.all().fetch(2)))
def testFilterByNumber(self):
root = TestEntityGroupRoot(key_name="root")
TestModel(parent=root.key()).put()
TestModel(number=17, parent=root.key()).put()
query = TestModel.all().ancestor(root.key()).filter('number =', 42)
results = query.fetch(2)
self.assertEqual(1, len(results))
self.assertEqual(42, results[0].number)
def testGetEntityViaMemcache(self):
entity_key = str(TestModel(number=18).put())
retrieved_entity = GetEntityViaMemcache(entity_key)
self.assertNotEqual(None, retrieved_entity)
self.assertEqual(18, retrieved_entity.number)
if __name__ == '__main__':
unittest.main()
这里,“测试路径”应该是一个包含要运行的测试的目录,而不是单个模块的路径。尝试使用
作为目录(假设您是从顶级项目/应用程序目录运行它),看看这是否有帮助
我的团队将测试与源代码放在一个单独的目录中,因此我们将使用测试目录的路径作为第二个参数。确保测试目录拼写为“tests”,而不是“test”。这就是我遇到的问题。非常感谢:就是这样。testrunner会在整个目录中查找包含测试的所有模块,这对我来说并不直观;我想我必须说得具体一点。那么为什么所有的测试都应该在它们自己的目录中呢。
#!/usr/bin/python
import optparse
import sys
import unittest
USAGE = """%prog SDK_PATH TEST_PATH
Run unit tests for App Engine apps.
SDK_PATH Path to the SDK installation
TEST_PATH Path to package containing test modules"""
def main(sdk_path, test_path):
sys.path.insert(0, sdk_path)
import dev_appserver
dev_appserver.fix_sys_path()
suite = unittest.loader.TestLoader().discover(test_path)
unittest.TextTestRunner(verbosity=2).run(suite)
if __name__ == '__main__':
parser = optparse.OptionParser(USAGE)
options, args = parser.parse_args()
if len(args) != 2:
print 'Error: Exactly 2 arguments required.'
parser.print_help()
sys.exit(1)
SDK_PATH = args[0]
TEST_PATH = args[1]
main(SDK_PATH, TEST_PATH)
import unittest
from google.appengine.api import memcache
from google.appengine.ext import db
from google.appengine.ext import testbed
class TestModel(db.Model):
"""A model class used for testing."""
number = db.IntegerProperty(default=42)
text = db.StringProperty()
class TestEntityGroupRoot(db.Model):
"""Entity group root"""
pass
def GetEntityViaMemcache(entity_key):
"""Get entity from memcache if available, from datastore if not."""
entity = memcache.get(entity_key) # @UndefinedVariable
if entity is not None:
return entity
entity = TestModel.get(entity_key)
if entity is not None:
memcache.set(entity_key, entity) # @UndefinedVariable
return entity
class DemoTestCase(unittest.TestCase):
def setUp(self):
# First, create an instance of the Testbed class.
self.testbed = testbed.Testbed()
# Then activate the testbed, which prepares the service stubs for use.
self.testbed.activate()
# Next, declare which service stubs you want to use.
self.testbed.init_datastore_v3_stub()
self.testbed.init_memcache_stub()
def tearDown(self):
self.testbed.deactivate()
def testInsertEntity(self):
TestModel().put()
self.assertEqual(1, len(TestModel.all().fetch(2)))
def testFilterByNumber(self):
root = TestEntityGroupRoot(key_name="root")
TestModel(parent=root.key()).put()
TestModel(number=17, parent=root.key()).put()
query = TestModel.all().ancestor(root.key()).filter('number =', 42)
results = query.fetch(2)
self.assertEqual(1, len(results))
self.assertEqual(42, results[0].number)
def testGetEntityViaMemcache(self):
entity_key = str(TestModel(number=18).put())
retrieved_entity = GetEntityViaMemcache(entity_key)
self.assertNotEqual(None, retrieved_entity)
self.assertEqual(18, retrieved_entity.number)
if __name__ == '__main__':
unittest.main()