Django 1.6.5 测试在执行测试之前失败
Django 1.6.5 test failing before executing tests
我遇到 Django 1.6.5 测试在开始执行之前就失败的问题。
如果我 运行 python manage.py test 它失败并显示以下消息：
Creating test database for alias 'default'...
Got an error creating the test database: (1007, "Can't create database 'test_marks_project'; database exists")
Type 'yes' if you would like to try deleting the test database 'test_marks_project', or 'no' to cancel: yes
Destroying old test database 'default'...
Traceback (most recent call last):
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 399, in execute_from_command_line
utility.execute()
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 392, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/commands/test.py", line 50, in run_from_argv
super(Command, self).run_from_argv(argv)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/base.py", line 242, in run_from_argv
self.execute(*args, **options.__dict__)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/commands/test.py", line 71, in execute
super(Command, self).execute(*args, **options)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/base.py", line 285, in execute
output = self.handle(*args, **options)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/south/management/commands/test.py", line 8, in handle
super(Command, self).handle(*args, **kwargs)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/commands/test.py", line 88, in handle
failures = test_runner.run_tests(test_labels)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/test/runner.py", line 145, in run_tests
old_config = self.setup_databases()
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/test/runner.py", line 107, in setup_databases
return setup_databases(self.verbosity, self.interactive, **kwargs)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/test/runner.py", line 279, in setup_databases
verbosity, autoclobber=not interactive)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/db/backends/creation.py", line 339, in create_test_db
load_initial_data=False)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 159, in call_command
return klass.execute(*args, **defaults)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/base.py", line 285, in execute
output = self.handle(*args, **options)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/base.py", line 415, in handle
return self.handle_noargs(**options)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/commands/syncdb.py", line 112, in handle_noargs
emit_post_sync_signal(created_models, verbosity, interactive, db)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/sql.py", line 216, in emit_post_sync_signal
interactive=interactive, db=db)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/dispatch/dispatcher.py", line 185, in send
response = receiver(signal=self, sender=sender, **named)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/contrib/auth/management/__init__.py", line 101, in create_permissions
auth_app.Permission.objects.using(db).bulk_create(perms)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/db/models/query.py", line 359, in bulk_create
self._batched_insert(objs_without_pk, fields, batch_size)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/db/models/query.py", line 838, in _batched_insert
using=self.db)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/db/models/manager.py", line 232, in _insert
return insert_query(self.model, objs, fields, **kwargs)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/db/models/query.py", line 1514, in insert_query
return query.get_compiler(using=using).execute_sql(return_id)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 903, in execute_sql
cursor.execute(sql, params)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/db/backends/util.py", line 53, in execute
return self.cursor.execute(sql, params)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/db/backends/mysql/base.py", line 124, in execute
return self.cursor.execute(query, args)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/MySQLdb/cursors.py", line 207, in execute
if not self._defer_warnings: self._warning_check()
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/MySQLdb/cursors.py", line 117, in _warning_check
warn(w[-1], self.Warning, 3)
_mysql_exceptions.Warning: Data truncated for column 'name' at row 356
Warning: local() encountered an error (return code 1) while executing 'python manage.py test'
到目前为止，我一直无法弄清楚是什么原因造成的以及如何解决它。我知道我们的数据库只能支持 191 个字符或更少的索引，不确定是否与它有关。
编辑
我在数据库上使用 UTF8MB4 编码（以支持表情符号等...）。这意味着我的唯一字段限制为 191 而不是 255。不确定这是否相关。
max_length 的 django Permission.name 是 50:
https://github.com/django/django/blob/1.6c1/django/contrib/auth/models.py#L71
并且您拥有名称 'Can delete event participant check in location stats user' 的权限，长度为 57。这就是 django 崩溃的原因。
我想你可以更改权限的名称。
我遇到 Django 1.6.5 测试在开始执行之前就失败的问题。
如果我 运行 python manage.py test 它失败并显示以下消息：
Creating test database for alias 'default'...
Got an error creating the test database: (1007, "Can't create database 'test_marks_project'; database exists")
Type 'yes' if you would like to try deleting the test database 'test_marks_project', or 'no' to cancel: yes
Destroying old test database 'default'...
Traceback (most recent call last):
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 399, in execute_from_command_line
utility.execute()
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 392, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/commands/test.py", line 50, in run_from_argv
super(Command, self).run_from_argv(argv)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/base.py", line 242, in run_from_argv
self.execute(*args, **options.__dict__)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/commands/test.py", line 71, in execute
super(Command, self).execute(*args, **options)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/base.py", line 285, in execute
output = self.handle(*args, **options)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/south/management/commands/test.py", line 8, in handle
super(Command, self).handle(*args, **kwargs)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/commands/test.py", line 88, in handle
failures = test_runner.run_tests(test_labels)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/test/runner.py", line 145, in run_tests
old_config = self.setup_databases()
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/test/runner.py", line 107, in setup_databases
return setup_databases(self.verbosity, self.interactive, **kwargs)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/test/runner.py", line 279, in setup_databases
verbosity, autoclobber=not interactive)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/db/backends/creation.py", line 339, in create_test_db
load_initial_data=False)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 159, in call_command
return klass.execute(*args, **defaults)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/base.py", line 285, in execute
output = self.handle(*args, **options)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/base.py", line 415, in handle
return self.handle_noargs(**options)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/commands/syncdb.py", line 112, in handle_noargs
emit_post_sync_signal(created_models, verbosity, interactive, db)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/core/management/sql.py", line 216, in emit_post_sync_signal
interactive=interactive, db=db)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/dispatch/dispatcher.py", line 185, in send
response = receiver(signal=self, sender=sender, **named)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/contrib/auth/management/__init__.py", line 101, in create_permissions
auth_app.Permission.objects.using(db).bulk_create(perms)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/db/models/query.py", line 359, in bulk_create
self._batched_insert(objs_without_pk, fields, batch_size)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/db/models/query.py", line 838, in _batched_insert
using=self.db)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/db/models/manager.py", line 232, in _insert
return insert_query(self.model, objs, fields, **kwargs)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/db/models/query.py", line 1514, in insert_query
return query.get_compiler(using=using).execute_sql(return_id)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 903, in execute_sql
cursor.execute(sql, params)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/db/backends/util.py", line 53, in execute
return self.cursor.execute(sql, params)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/django/db/backends/mysql/base.py", line 124, in execute
return self.cursor.execute(query, args)
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/MySQLdb/cursors.py", line 207, in execute
if not self._defer_warnings: self._warning_check()
File "/home/mark/.virtualenvs/marks_project/local/lib/python2.7/site-packages/MySQLdb/cursors.py", line 117, in _warning_check
warn(w[-1], self.Warning, 3)
_mysql_exceptions.Warning: Data truncated for column 'name' at row 356
Warning: local() encountered an error (return code 1) while executing 'python manage.py test'
到目前为止，我一直无法弄清楚是什么原因造成的以及如何解决它。我知道我们的数据库只能支持 191 个字符或更少的索引，不确定是否与它有关。
编辑
我在数据库上使用 UTF8MB4 编码（以支持表情符号等...）。这意味着我的唯一字段限制为 191 而不是 255。不确定这是否相关。
max_length 的 django Permission.name 是 50:
https://github.com/django/django/blob/1.6c1/django/contrib/auth/models.py#L71
并且您拥有名称 'Can delete event participant check in location stats user' 的权限，长度为 57。这就是 django 崩溃的原因。
我想你可以更改权限的名称。