Fix codecov on Travis CI

The coverage report needs to be explicitly created with arguments passed in to pytest-cov

Author: nryoung

.travis.yml

@@ -31,4 +31,4 @@ script:
 
 after_success:
  - pip install codecov
- - codecov
+ - codecov -e TOX_ENV

runtests.py

@@ -93,7 +93,11 @@ def is_class(string):
  except ValueError:
  pass
  else:
- pytest_args = ['--cov', 'rest_framework'] + pytest_args
+ pytest_args = [
+ '--cov-report',
+ 'xml',
+ '--cov',
+ 'rest_framework'] + pytest_args
 
  if first_arg.startswith('-'):
  # `runtests.py [flags]`