Add comprehensive test coverage for core functionalities

This commit introduces test cases for the API, archive, store, and filesystem functionalities, as well as a functional test for a full workflow. It ensures robust testing for snapshot operations, archiving, and blob management, significantly improving reliability.

Makefile

@@ -14,3 +14,38 @@ gen-proto:
 			--go-grpc_out=grpc --go-grpc_opt paths=source_relative \
 			--grpc-gateway_out=grpc --grpc-gateway_opt paths=source_relative \
 			./grpc/snapshot.proto
+
+# Запуск всех тестов
+test:
+	go test -v ./...
+
+# Запуск модульных тестов
+test-unit:
+	go test -v ./store/... ./hash/... ./archive/...
+
+# Запуск интеграционных тестов
+test-integration:
+	go test -v -tags=integration ./...
+
+# Запуск функциональных тестов
+test-functional:
+	go test -v -run TestFull ./...
+
+# Запуск тестов производительности
+test-performance:
+	go test -v -run TestPerformanceMetrics ./...
+	go test -v -bench=. ./...
+
+# Запуск тестов с покрытием кода
+test-coverage:
+	go test -v -coverprofile=coverage.out ./...
+	go tool cover -html=coverage.out -o coverage.html
+
+# Запуск линтера
+lint:
+	golangci-lint run
+
+# Запуск всех проверок (тесты + линтер)
+check: test lint
+
+.PHONY: download-third-party gen-proto test test-unit test-integration test-functional test-performance test-coverage lint check