OpenMined · chinmayshah99 · Aug 22, 2020 · Aug 21, 2020 · Aug 21, 2020 · Aug 21, 2020
diff --git a/.coveragerc b/.coveragerc
@@ -0,0 +1,9 @@
+# .coveragerc to control coverage.py
+[run]
+branch = True
+data_file = .coveragepy.dat
+source = pydp
+
+[html]
+directory = coverage_report/python
+title = Python code coverage report
diff --git a/.env b/.env
@@ -1,2 +1,4 @@
 LC_ALL=C.UTF-8
 LANG=C.UTF-8
+
+MIN_COVERAGE=80
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
@@ -36,3 +36,9 @@ jobs:
     - name: Run tests
       run: |
         make run-tests-only
+    - name: Check Python code coverage
+      run: |
+        make check-coverage-python
+    - name: Check C++ code coverage
+      run: |
+        make check-coverage-cpp
diff --git a/.gitignore b/.gitignore
@@ -40,6 +40,8 @@ wheels/
 htmlcov/
 .coverage
 .coverage.*
+.coveragepy
+.coveragepy.*
 .cache
 nosetests.xml
 coverage.xml
@@ -49,3 +51,6 @@ coverage.xml
 .mypy_cache/
 docs/_build/*
 docs/_generate/*
+*.gcov
+coverage_report/*
+!coverage_report/index.html
diff --git a/Makefile b/Makefile
@@ -1,3 +1,5 @@
+include .env # Read .env file
+
 .PHONY: clean clean-test clean-pyc clean-build docs help
 .DEFAULT_GOAL := help
 
@@ -51,6 +53,7 @@ clean-test: ## remove test and coverage artifacts
 	rm -f .coverage
 	rm -fr htmlcov/
 	rm -fr .pytest_cache
+	find . -name '*.gcov' -exec rm -fr {} +
 
 format-style-python: ## format Python files code style in-place
 	@ pipenv run black ./
@@ -71,10 +74,29 @@ check-style-cpp: ## check for C++ code style in-place
 	( echo "\e[33mRun \e[34mmake format-style-cpp\e[33m to fix style errors.\e[0m"; \
 	  exit 1 )
 
-run-tests-only: install ## run tests without style tests
-	pipenv run pytest tests
-
-test: check-style-python check-style-cpp run-tests-only ## check style and run tests
+check-coverage-python: ## check for Python code coverage
+	@ echo "\e[36mChecking Python code coverage with MIN_COVERAGE=${MIN_COVERAGE}.\e[0m" && \
+	pipenv run coverage report --fail-under ${MIN_COVERAGE} || \
+	( echo "\e[33mRun \e[34mmake show-coverage\e[33m to see a detailed HTML coverage report.\e[0m"; \
+		exit 1 )
+
+check-coverage-cpp: ## check for C++ code coverage
+	@ echo "\e[36mChecking C++ code style with MIN_COVERAGE=${MIN_COVERAGE}.\e[0m" && \
+	mkdir -p coverage_report/cpp && \
+	pipenv run gcovr --print-summary --fail-under-line ${MIN_COVERAGE} || \
+	( echo "\e[33mRun \e[34mmake show-coverage\e[33m to see a detailed HTML coverage report.\e[0m"; \
+		exit 1 )
+
+run-tests-only: install ## run tests with coverage generation and without style tests
+	pipenv run coverage run -m pytest tests
+
+test: check-style-python check-style-cpp run-tests-only check-coverage-python check-coverage-cpp ## check style and run tests
+
+show-coverage: ## report code coverage
+	echo "\e[36mGenerating code coverage HTML report.\e[0m"
+	pipenv run coverage html -d coverage_report/python
+	pipenv run gcovr --html-details coverage_report/cpp/index.html
+	$(BROWSER) coverage_report/index.html
 
 release: dist ## package and upload a release
 	twine upload dist/*

diff --git a/Pipfile b/Pipfile
@@ -11,5 +11,7 @@ black = "*"
 twine = "*"
 sphinx = "*"
 sphinx-rtd-theme = "*"
+gcovr = "*"
+coverage = "*"
 
 [packages]
diff --git a/build_PyDP.sh b/build_PyDP.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
 pipenv install --dev --skip-lock
-bazel build src/python:bindings_test  --verbose_failures
+bazel coverage src/python:bindings_test --verbose_failures
 find ./ -name _pydp.so -print0 | xargs -0 -I {} rm {}
 cp -f ./bazel-bin/src/bindings/_pydp.so ./pydp
diff --git a/coverage_report/index.html b/coverage_report/index.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>PyDP code coverage report</title>
+</head>
+<body>
+  <iframe src="./python/index.html" onload="this.width=screen.width-50;this.height=(screen.height/2)-100;" style="float:left;"></iframe>
+  <div style="clear:both; height:20px;"></div>
+  <iframe src="./cpp/index.html" onload="this.width=screen.width-50;this.height=(screen.height/2)-100;"style="float:left;"></iframe>
+</div>
+
+</body>
+</html>
diff --git a/gcovr.cfg b/gcovr.cfg
@@ -0,0 +1,6 @@
+# .gcovr.cfg to control gcovr
+root = bazel-bin/src
+filter = src
+
+html-details = yes
+output = coverage_report/cpp/index.html