Simplified coverage step

Author: Joachim Jablon

Makefile

@@ -27,8 +27,6 @@ test-all: ## run tests on every Python version with tox
 
 coverage: ## check code coverage quickly with the default Python
 	coverage run --source django_readonly_field runtests.py
-	coverage report -m
-	coverage html
 
 docs: ## generate Sphinx HTML documentation, including API docs
 	rm -f docs/django-readonly-field.rst

runtests.py

@@ -17,9 +17,21 @@
 
 
 def run_tests(*test_args):
+    do_coverage = "COVERAGE" in os.environ
+
+    if do_coverage:
+        import coverage
+        cov = coverage.Coverage(source=["django_readonly_field"])
+        cov.start()
+        print("Coverage will be generated")
+
     from django.core.management import execute_from_command_line
     execute_from_command_line(["", "test", ] + sys.argv[1:])
 
+    if do_coverage:
+        cov.stop()
+        cov.save()
+
 
 if __name__ == '__main__':
     run_tests(*sys.argv[1:])

tox.ini

@@ -3,7 +3,7 @@ envlist =
     {py27,py35}-django{18,19,110},linters
 
 [testenv]
-passenv = DATABASE_URL
+passenv = DATABASE_URL COVERAGE
 setenv =
     PYTHONPATH = {toxinidir}:{toxinidir}/django_readonly_field
 commands =