dissertation-2-code/proxy/packet_test.go

package proxy

import (
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
	"mpbl3p/mocks"
	"testing"
)

func TestPacket_Marshal(t *testing.T) {
	testContent := []byte("A test string is the content of this packet.")
	testPacket := NewPacket(testContent)
	testMac := mocks.AlmostUselessMac{}

	t.Run("Length", func(t *testing.T) {
		marshalled := testPacket.Marshal(testMac)

		assert.Len(t, marshalled, len(testContent)+8+4)
	})
}

func TestUnmarshalPacket(t *testing.T) {
	testContent := []byte("A test string is the content of this packet.")
	testPacket := NewPacket(testContent)
	testMac := mocks.AlmostUselessMac{}
	testMarshalled := testPacket.Marshal(testMac)

	t.Run("Length", func(t *testing.T) {
		p, err := UnmarshalSimplePacket(testMarshalled, testMac)

		require.Nil(t, err)
		assert.Len(t, p.Marshal(), len(testContent))
	})
}