refactor:Added Integration test and tiny refactoring (#23)

* Refactoring name convention

* Added integration test

* Added Makefile

* Bump golang.org/x/crypto from 0.0.0-20220826181053-bd7e27e6170d to 0.6.0

Bumps [golang.org/x/crypto](https://github.com/golang/crypto) from 0.0.0-20220826181053-bd7e27e6170d to 0.6.0.
- [Release notes](https://github.com/golang/crypto/releases)
- [Commits](https://github.com/golang/crypto/commits/v0.6.0)

---
updated-dependencies:
- dependency-name: golang.org/x/crypto
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

* Upgrade go from 1.16 to 1.20

* Added integration test: HTTP, TCP, SSH

* Added Makefile Improve README.md

* Fixed unit test CI

* Fixed go-version

* Added integration test into C.I. actions

---------

Signed-off-by: Mario Candela <m4r10.php@gmail.com>
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

protocols/protocol_manager_test.go

@@ -0,0 +1,50 @@
+package protocols
+
+import (
+	"beelzebub/parser"
+	"beelzebub/tracer"
+	"errors"
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+type mockServiceStrategyValid struct {
+}
+
+func (mockServiceStrategy mockServiceStrategyValid) Init(beelzebubServiceConfiguration parser.BeelzebubServiceConfiguration, tr tracer.Tracer) error {
+	return nil
+}
+
+type mockServiceStrategyError struct {
+}
+
+func (mockServiceStrategy mockServiceStrategyError) Init(beelzebubServiceConfiguration parser.BeelzebubServiceConfiguration, tr tracer.Tracer) error {
+	return errors.New("mockError")
+}
+
+func TestInitServiceManager(t *testing.T) {
+	mockTraceStrategy := func(event tracer.Event) {}
+
+	protocolManager := InitProtocolManager(mockTraceStrategy, mockServiceStrategyValid{})
+
+	assert.NotNil(t, protocolManager.strategy)
+	assert.NotNil(t, protocolManager.tracer)
+}
+
+func TestInitServiceSuccess(t *testing.T) {
+	mockTraceStrategy := func(event tracer.Event) {}
+
+	protocolManager := InitProtocolManager(mockTraceStrategy, mockServiceStrategyValid{})
+
+	protocolManager.SetProtocolStrategy(mockServiceStrategyValid{})
+
+	assert.Nil(t, protocolManager.InitService(parser.BeelzebubServiceConfiguration{}))
+}
+
+func TestInitServiceError(t *testing.T) {
+	mockTraceStrategy := func(event tracer.Event) {}
+
+	protocolManager := InitProtocolManager(mockTraceStrategy, mockServiceStrategyError{})
+
+	assert.NotNil(t, protocolManager.InitService(parser.BeelzebubServiceConfiguration{}))
+}