Makefileにカバレッジ関連コマンドを追加して効率化する方法。

通常環境用:

test-coverage:
	go test -v -coverprofile=coverage.out ./...
	go tool cover -func=coverage.out

test-coverage-html:
	go test -v -coverprofile=coverage.out ./...
	go tool cover -html=coverage.out -o coverage.html
	@echo "Coverage report generated: coverage.html"

Docker環境用:

test-coverage-local:
	docker exec -i paput-api ash -c "go test -v -coverprofile=coverage.out ./... && go tool cover -func=coverage.out"

test-coverage-html-local:
	docker exec -i paput-api ash -c "go test -v -coverprofile=coverage.out ./... && go tool cover -html=coverage.out -o coverage.html"

OS別に自動でブラウザを開く処理:

	@if [ "$$(uname)" = "Darwin" ]; then \
		open coverage.html; \
	elif [ "$$(uname)" = "Linux" ]; then \
		xdg-open coverage.html 2>/dev/null || echo "Please open coverage.html manually"; \
	elif [ "$$(expr substr $$(uname -s) 1 5)" = "MINGW" ]; then \
		start coverage.html; \
	else \
		echo "Please open coverage.html manually"; \
	fi

gitignoreに追加すべきファイル:

• coverage.out
• coverage.html