Django无法正确破坏和创建测试数据库 [英] Django can't destroy and create test databases properly

问题描述

当我尝试运行我的单元测试时，这就是我所得到的：

When I try to run my unittest, this is what I get:

python manage.py test dbank --settings=databank_web.settings.dqs.dev_hooman
Creating test database for alias 'default'...
Creating test database for alias 'global'...
Creating test database for alias 'optin_db'...
Creating test database for alias 'vpd3'...
Creating test database for alias 'user_db'...
Creating test database for alias 'vpd1'...
Creating test database for alias 'vpd2'...
.
----------------------------------------------------------------------
Ran 1 test in 0.327s

OK
Destroying test database for alias 'default'...
Warning: Table 'mysql.proc' doesn't exist

它不能破坏数据库。当我重新运行测试时，它变得更好：

It couldn't destroy the database. It gets better, when I rerun the test:

python manage.py test dbank --settings=databank_web.settings.dqs.dev_hooman
Creating test database for alias 'default'...
Creating test database for alias 'global'...
Got an error creating the test database: (1007, "Can't create database 'test_dqs12_full2'; database exists")
Type 'yes' if you would like to try deleting the test database 'test_dqs12_full2', or 'no' to cancel: yes
Destroying old test database 'global'...
Got an error recreating the test database: Table 'mysql.proc' doesn't exist

任何想法为什么会出错？

Any idea why this is going wrong?

运行最新的homebrew + mysql-5.6.21 + Django 1.5.5

Running latest homebrew + mysql-5.6.21 + Django 1.5.5

推荐答案

我终于找到了理由。

我们的应用程序有大约7个数据库。当我要手动删除它们以获得干净的状态时，我不小心也删除了 mysql 数据库。这个数据库不应该被删除，因为它包含有关root用户的重要信息。

Our application has around 7 databases. When I was about to drop them manually to get a clean state, I accidentally also dropped the mysql database. This database should not be ever deleted, as it contains vital information about the root user.

当我意识到这一点时，我尝试通过brew重新安装MySQL来缓解。 p>

When I realised this, I tried to mitigate by reinstalling MySQL via brew.

brew uninstall mysql
brew install mysql

当我运行显示数据库时，这个工作和 mysql 数据库再次出现; ，但问题仍然存在。这是当我来到这里寻求帮助。

This worked and mysql database showed up again when I ran show databases;, however the problem persisted. Thats when I came here for help.

因为它似乎比酿造有点复杂。
这是我如何让它再次工作：

As it seems things are a bit more complicated than that with brew. This is how I got it working again:

1) brew uninstall mysql
2) sudo rm -r /usr/local/var/mysql/
3) brew install mysql
4) unset TMPDIR
5) mysql_install_db --verbose --user='whoami' --basedir="$(brew --prefix mysql)" --datadir=/usr/local/var/mysql --tmpdir=/tmp
6) mysql.server restart
7) mysql_secure_installation

现在它可以工作。希望这有助于其他mac用户。谢谢。

Now it works. Hope this helps other fellow mac users. Thanks.

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