tests: fix coverage reporting (#17)

Author: tseaver

pyproject.toml

@@ -71,6 +71,7 @@ include-package-data = true
 minversion = "6.0"
 python_files = "test_*.py"
 testpaths = [ "tests" ]
+addopts = "--cov=repoze.retry --cov=tests/unit --cov-branch"
 
 [tool.coverage.run]
 omit = []

tox.ini

@@ -7,13 +7,13 @@ envlist =
 isolated_build = true
 
 [testenv]
+use_develop = true
 deps =
     pytest
     pytest-cov
 commands = 
     python --version
-    python -mpytest --cov \
-        {posargs:}
+    python -mpytest {posargs:}
 setenv =
     COVERAGE_FILE=.coverage.{envname}