Makefile: include examples in the coverage-report

Author: schuellerf

.gitignore

@@ -1,3 +1,5 @@
 /.vscode
 /coverage.html
 /coverage.txt
+/coverage_data_examples
+/coverage_data_unittests

Makefile

@@ -9,18 +9,33 @@ help:
 	@echo 'Internal Targets:'
 	@awk 'match($$0, /^([a-zA-Z_\/-]+):.*? ### (.*)$$/, m) {printf "  \033[36m%-30s\033[0m %s\n", m[1], m[2]}' $(MAKEFILE_LIST) | sort
 
+coverage_data_examples coverage_data_unittests:
+	mkdir $@
+
+.PHONY: clean
+clean: ## clean all build and test artifacts
+	rm -rf coverage_data_examples coverage_data_unittests
+	rm -rf coverage.{txt,html}
+
 .PHONY: unit-tests
-unit-tests:  ## Run all tests
-	go test -race -v -covermode=atomic -coverprofile=coverage.txt ./...
+unit-tests: coverage_data_unittests ## Run all tests
+	go test -race -v -covermode=atomic ./... -args -test.gocoverdir="$(shell pwd)/coverage_data_unittests"
 
 .PHONY: lint
 lint:  ## run linter / static checker
 	staticcheck ./...
 
 .PHONY: coverage-report
-coverage-report: unit-tests  ## Run unit tests and generate an HTML coverage report
+coverage-report: coverage_data_examples unit-tests run-examples-cov  ## Run unit tests and examples. Then generate an HTML coverage report
+	go tool covdata textfmt -i=./coverage_data_examples/,./coverage_data_unittests/ -o coverage.txt
 	go tool cover -o coverage.html -html coverage.txt
 
+.PHONY: run-examples-cov
+run-examples-cov: coverage_data_examples  ### Run examples tests with coverage
+	for d in internal/example_*; do \
+	  GOCOVERDIR=coverage_data_examples go run -coverpkg=github.com/osbuild/logging/... -covermode=atomic -cover github.com/osbuild/logging/$$d || exit 1; \
+	done
+
 .PHONY: run-examples
 run-examples:  ## Run examples tests
 	for d in internal/example_*; do go run github.com/osbuild/logging/$$d || exit 1; done