Follow the new convention for Django 11.0

a new option --debug-mode has been introduced, so let's name ours
--django-debug-mode

docs/changelog.rst

@@ -7,7 +7,7 @@ Unreleased
 Features
 ^^^^^^^^
 
-* Added a new option `--django-debug` to specify the default DEBUG setting (#228)
+* Added a new option `--django-debug-mode` to specify the default DEBUG setting (#228)
 
 3.1.2
 -----

docs/configuring_django.rst

@@ -92,7 +92,7 @@ But sometimes, especially for functional tests, you might want to avoid this, to
 
 Command Line Option::
 
-    $ py.test --django-debug True|False|None
+    $ py.test --django-debug-mode True|False|None
 
 ``None`` ensure there is no override of the test settings DEBUG value
 ``True`` override DEBUG to True

pytest_django/plugin.py

@@ -67,8 +67,8 @@ def pytest_addoption(parser):
     group._addoption('--migrations',
                      action='store_false', dest='nomigrations', default=False,
                      help='Enable Django migrations on test setup')
-    group._addoption('--django-debug',
-                     action='store', dest='djangodebug', default='False',
+    group._addoption('--django-debug-mode',
+                     action='store', dest='djangodebugmode', default='False',
                      help='Configure the DEBUG setting. Defaults to False')
     parser.addini(CONFIGURATION_ENV,
                   'django-configurations class to use by pytest-django.')
@@ -339,8 +339,8 @@ def django_test_environment(request):
         from django.conf import settings as dj_settings
         from django.test.utils import (setup_test_environment,
                                        teardown_test_environment)
-        if request.config.getvalue('djangodebug') != 'None':
-            dj_settings.DEBUG = bool(strtobool(request.config.getvalue('djangodebug')))
+        if request.config.getvalue('djangodebugmode') != 'None':
+            dj_settings.DEBUG = bool(strtobool(request.config.getvalue('djangodebugmode')))
         setup_test_environment()
         request.addfinalizer(teardown_test_environment)
 

tests/test_django_settings_module.py

@@ -296,7 +296,7 @@ def test_debug_is_unchanged():
             assert settings.DEBUG is True
     """)
 
-    r = testdir.runpytest_subprocess('--django-debug=None')
+    r = testdir.runpytest_subprocess('--django-debug-mode=None')
     assert r.ret == 0
 
 
@@ -321,7 +321,7 @@ def test_debug_is_false():
             assert settings.DEBUG is False
     """)
 
-    r = testdir.runpytest_subprocess('--django-debug=False')
+    r = testdir.runpytest_subprocess('--django-debug-mode=False')
     assert r.ret == 0
 
 
@@ -346,7 +346,7 @@ def test_debug_is_true():
             assert settings.DEBUG is True
     """)
 
-    r = testdir.runpytest_subprocess('--django-debug=True')
+    r = testdir.runpytest_subprocess('--django-debug-mode=True')
     assert r.ret == 0