django test app error - Got an error creating the test database: permission denied to create database

Question

When I try to test any app with command (I noticed it when I tried to deploy myproject using fabric, which uses this command):

python manage.py test appname
         


        

Answer 1

If database is mysql then these two changes will get the things done.

1.Open mysite/mysite/settings.py

Your database settings should have an additional TEST block as shown with projectname_test.

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'myproject',
        'USER': 'chandan',
        'PASSWORD': 'root',
        'HOST': 'localhost',
        'PORT': '3306',
        'TEST': {
            'NAME': 'myproject_test',
        },
    }
}

2.Type the below command using mysql command prompt or mysql workbench to give all privilages to the user specified in settings.py

GRANT ALL PRIVILEGES ON myproject_test.* TO 'chandan'@'localhost';

Now you can run python manage.py test polls.

Answer 2

If you are using docker-compose what worked for me was the following:

ALTER ROLE username CREATEDB;
GRANT ALL PRIVILEGES ON test_database_name.* TO 'username';

or

ALTER ROLE username CREATEDB;
GRANT ALL PRIVILEGES ON *.* TO 'username'@'%';

My settings looks like this:

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'database_name',
        'USER': 'username',
        'PASSWORD': 'password',
        'HOST': 'db',
        'PORT': '3306',
    }
}

and my docker-compose.yml looks as follows:

version: '3'
services:
  web:
      build: .
      command: './wait_for_db_and_start_server.sh'
      env_file: env_web
      working_dir: /project_name
      links:
        - db
      volumes:
        - .:/volume_name
      ports:
        - "8000:8000"
      depends_on:
        - db
  db:
    image: mysql:5.7
    restart: always
    env_file: env_db
    working_dir: /db
    volumes:
      - ./Dump.sql:/db/Dump.sql
    ports:
      - "3306:3306"

Answer 3

In my case, GRANT PRIVILEGES solutions didn't work with Python 3.7.2, Django 2.1.7 and MySQL 5.6.23... I don't know why.

So I decided to use SQLite as a TEST database...

DATABASES = {
    'default': {
        'NAME': 'productiondb',
        'ENGINE': 'mysql.connector.django',   # 'django.db.backends.mysql'
        'USER': '<user>',
        'PASSWORD': '<pass>',
        'HOST': 'localhost',
        'PORT': 3306,
        'OPTIONS': {
            'autocommit': True,
        },
        'TEST': {
            'ENGINE': 'django.db.backends.sqlite3',
            'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
        },
    }
}

After that, TESTS car run without troubles:

$ python manage.py test
Creating test database for alias 'default'...
System check identified no issues (0 silenced).

Destroying test database for alias 'default'...
----------------------------------------------------------------------
Ran 0 tests in 0.000s

OK

Process finished with exit code 0