Enable branch coverage measurement in pytest

Author: glennmatthews

poetry.lock

@@ -35,6 +35,7 @@ ipython = "^7.18.1"
 mypy = "^0.782"
 pytest-cov = "^2.10.1"
 pytest-structlog = "^0.3"
+coverage = {extras = ["toml"], version = "^5.3"}
 
 [tool.black]
 line-length = 120
@@ -51,6 +52,9 @@ exclude = '''
         )/
     '''
 
+[tool.coverage.run]
+branch = true
+
 [tool.pylint.general]
 extension-pkg-whitelist = [
     "pydantic"

pyproject.toml

@@ -123,7 +123,8 @@ def pytest(context, name=NAME, python_ver=PYTHON_VER):
     # Install python module
     docker = f"docker run -it -v {PWD}:/local {name}-{python_ver}:latest"
     context.run(
-        f"{docker} /bin/bash -c 'poetry install && pytest --cov=diffsync --cov-report html --cov-report term -vv'",
+        f"{docker} /bin/bash -c 'poetry install && pytest "
+        "--cov=diffsync --cov-config pyproject.toml --cov-report html --cov-report term -vv'",
         pty=True,
     )