[WIP] Make django_settings_is_configured return the first value always

[blueyed]

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I have been seeing an issue, where it would return False initially, but later True; causing an AttributeError with the mailoutbox fixture, because mail.outbox was not set on the module.

This can happen with imported code that changes the environment, e.g. via "wsgi/asgi.py":

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "foo.settings")

TODO:

• [x] test

[codecov-io]

Codecov Report

Merging #708 into master will increase coverage by <.01%. The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #708      +/-   ##
==========================================
+ Coverage   98.03%   98.03%   +<.01%     
==========================================
  Files          32       32              
  Lines        1831     1836       +5     
  Branches      142      142              
==========================================
+ Hits         1795     1800       +5     
  Misses         23       23              
  Partials       13       13

Flag	Coverage Δ
#dj110	85.62% <100%> (+0.03%)	:arrow_up:
#dj111	87.9% <100%> (+0.03%)	:arrow_up:
#dj18	86.6% <100%> (+0.03%)	:arrow_up:
#dj19	85.67% <100%> (+0.03%)	:arrow_up:
#dj20	87.85% <100%> (+0.03%)	:arrow_up:
#dj21	85.34% <100%> (+0.04%)	:arrow_up:
#dj22	83.22% <100%> (+0.04%)	:arrow_up:
#djmaster	81.2% <100%> (+0.05%)	:arrow_up:
#mysql_innodb	86.11% <100%> (+0.03%)	:arrow_up:
#mysql_myisam	85.94% <100%> (+0.03%)	:arrow_up:
#postgres	91.12% <100%> (+0.02%)	:arrow_up:
#py27	90.95% <100%> (+0.02%)	:arrow_up:
#py34	85.67% <100%> (+0.03%)	:arrow_up:
#py35	85.62% <100%> (+0.03%)	:arrow_up:
#py36	88.77% <100%> (+0.03%)	:arrow_up:
#py37	85.72% <100%> (+0.03%)	:arrow_up:
#pytest41	85.07% <100%> (+0.04%)	:arrow_up:
#sqlite	90.35% <100%> (+0.02%)	:arrow_up:
#sqlite_file	85.67% <100%> (+0.03%)	:arrow_up:
#xdist	87.85% <100%> (+0.03%)	:arrow_up:

Impacted Files	Coverage Δ
pytest_django/lazy_django.py	100% <100%> (ø)	:arrow_up:

---

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[codecov-io]

Codecov Report

Merging #708 into master will decrease coverage by 0.09%. The diff coverage is 92.59%.

@@            Coverage Diff            @@
##           master     #708     +/-   ##
=========================================
- Coverage    98.1%   98.01%   -0.1%     
=========================================
  Files          32       32             
  Lines        1902     1861     -41     
  Branches      149      149             
=========================================
- Hits         1866     1824     -42     
  Misses         23       23             
- Partials       13       14      +1

Flag	Coverage Δ
#dj110	85.81% <92.59%> (?)
#dj111	88.07% <92.59%> (?)
#dj18	86.78% <92.59%> (?)
#dj19	85.81% <92.59%> (?)
#dj20	88.01% <92.59%> (?)
#dj21	85.54% <92.59%> (?)
#dj22	83.44% <92.59%> (?)
#djmaster	81.46% <92.59%> (?)
#mysql_innodb	86.29% <92.59%> (?)
#mysql_myisam	86.13% <92.59%> (?)
#postgres	91.24% <92.59%> (?)
#py27	91.08% <92.59%> (?)
#py34	85.81% <92.59%> (?)
#py35	85.81% <92.59%> (?)
#py36	88.93% <92.59%> (?)
#py37	85.92% <92.59%> (?)
#pytest41	85.27% <92.59%> (?)
#sqlite	90.43% <92.59%> (?)
#sqlite_file	85.81% <92.59%> (?)
#xdist	88.01% <92.59%> (?)

Impacted Files	Coverage Δ
tests/test_django_settings_module.py	100% <100%> (ø)	:arrow_up:
pytest_django/lazy_django.py	100% <100%> (ø)	:arrow_up:
pytest_django/plugin.py	94.05% <90%> (+0.01%)	:arrow_up:
pytest_django/live_server_helper.py	92.18% <0%> (-4.69%)	:arrow_down:
tests/test_db_setup.py	100% <0%> (ø)	:arrow_up:
tests/conftest.py	100% <0%> (ø)	:arrow_up:
pytest_django/fixtures.py	97.31% <0%> (+0.77%)	:arrow_up:

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update d2973e2...74e310a. Read the comment docs.