text: import json
  import os
  
  test_db_vendor = os.environ.get("DJSTRIPE_TEST_DB_VENDOR", "postgres")
  test_db_name = os.environ.get("DJSTRIPE_TEST_DB_NAME", "djstripe")
  test_db_user = os.environ.get("DJSTRIPE_TEST_DB_USER", test_db_vendor)
  test_db_pass = os.environ.get("DJSTRIPE_TEST_DB_PASS", "djstripe")
  test_db_port = os.environ.get("DJSTRIPE_TEST_DB_PORT", "")
  
  DEBUG = True
  SECRET_KEY = os.environ.get("DJSTRIPE_TEST_DJANGO_SECRET_KEY", "djstripe")
  SITE_ID = 1
  TIME_ZONE = "UTC"
  USE_TZ = True
  PROJECT_DIR = os.path.dirname(os.path.abspath(__file__))
  BASE_DIR = os.path.dirname(PROJECT_DIR)
  
  ALLOWED_HOSTS = json.loads(os.environ.get("DJSTRIPE_TEST_ALLOWED_HOSTS_JSON", '["*"]'))
  
  if test_db_vendor == "postgres":
      DATABASES = {
          "default": {
              "ENGINE": "django.db.backends.postgresql_psycopg2",
              "NAME": test_db_name,
              "USER": test_db_user,
              "PASSWORD": test_db_pass,
              "HOST": os.environ.get("DJSTRIPE_TEST_DB_HOST", "localhost"),
              "PORT": test_db_port,
          }
      }
  elif test_db_vendor == "mysql":
      DATABASES = {
          "default": {
              "ENGINE": "django.db.backends.mysql",
              "NAME": test_db_name,
              "USER": os.environ.get("DJSTRIPE_TEST_DB_USER", "root"),
              "PASSWORD": test_db_pass,
              "HOST": os.environ.get("DJSTRIPE_TEST_DB_HOST", "127.0.0.1"),
              "PORT": test_db_port,
          }
      }
  elif test_db_vendor == "sqlite":
      # sqlite is not officially supported, but useful for quick testing.
      # may be dropped if we can't maintain compatibility.
      DATABASES = {
          "default": {
              "ENGINE": "django.db.backends.sqlite3",
              "NAME": os.path.join(BASE_DIR, "db.sqlite3"),
              # use a on-disk db for test so --reuse-db can be used
              "TEST": {"NAME": os.path.join(BASE_DIR, "test_db.sqlite3")},
          }
      }
  else:
      raise NotImplementedError("DJSTRIPE_TEST_DB_VENDOR = {}".format(test_db_vendor))
  
  
  TEMPLATES = [
      {
          "BACKEND": "django.template.backends.django.DjangoTemplates",
          "DIRS": [],
          "APP_DIRS": True,
          "OPTIONS": {
              "context_processors": [
                  "django.contrib.auth.context_processors.auth",
                  "django.contrib.messages.context_processors.messages",
                  "django.template.context_processors.request",
              ]
          },
      }
  ]
  
  ROOT_URLCONF = "tests.urls"
  INSTALLED_APPS = [
      "django.contrib.admin",
      "django.contrib.auth",
      "django.contrib.contenttypes",
      "django.contrib.sessions",
      "django.contrib.messages",
      "django.contrib.sites",
      "django.contrib.staticfiles",
      "jsonfield",
      "djstripe",
      "tests",
      # to load custom models defined to test fields.py
      "tests.fields",
      "tests.apps.testapp",
      "tests.apps.example",
  ]
  
  MIDDLEWARE = (
      "django.middleware.security.SecurityMiddleware",
      "django.contrib.sessions.middleware.SessionMiddleware",
      "django.middleware.common.CommonMiddleware",
      "django.middleware.csrf.CsrfViewMiddleware",
      "django.contrib.auth.middleware.AuthenticationMiddleware",
      "django.contrib.messages.middleware.MessageMiddleware",
      "django.middleware.clickjacking.XFrameOptionsMiddleware",
  )
  
  STRIPE_LIVE_PUBLIC_KEY = os.environ.get(
      "STRIPE_PUBLIC_KEY", "pk_live_XXXXXXXXXXXXXXXXXXXXXXXXX"
  )
  STRIPE_LIVE_SECRET_KEY = os.environ.get(
      "STRIPE_SECRET_KEY", "sk_live_XXXXXXXXXXXXXXXXXXXXXXXXX"
  )
  STRIPE_TEST_PUBLIC_KEY = os.environ.get(
      "STRIPE_PUBLIC_KEY",
      "pk_test_XXXXXXXXXXXXXXXXXXXXXXXXX",
  )
  STRIPE_TEST_SECRET_KEY = os.environ.get(
      "STRIPE_SECRET_KEY",
      "sk_test_XXXXXXXXXXXXXXXXXXXXXXXXX",
  )
  
  DJSTRIPE_SUBSCRIPTION_REQUIRED_EXCEPTION_URLS = (
      "(admin)",
      "test_url_name",
      "testapp_namespaced:test_url_namespaced",
      "fn:/test_fnmatch*",
  )
  
  DJSTRIPE_USE_NATIVE_JSONFIELD = os.environ.get("USE_NATIVE_JSONFIELD", "1") == "1"
  DJSTRIPE_FOREIGN_KEY_TO_FIELD = (
      "id" if os.environ.get("USE_NATIVE_STRIPE_ID", "") == "1" else "djstripe_id"
  )
  
  DJSTRIPE_SUBSCRIPTION_REDIRECT = "test_url_subscribe"
  DJSTRIPE_WEBHOOK_VALIDATION = "verify_signature"
  DJSTRIPE_WEBHOOK_SECRET = os.environ.get("DJSTRIPE_TEST_WEBHOOK_SECRET", "whsec_XXXXX")
  
  STATIC_URL = "/static/"
  
  DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
  