//go:build linux

package sockets

import (
	"testing"

	"github.com/stretchr/testify/require"
)

type ipParseTest = struct {
	description  string
	input        string
	expectedPort int
	expectedIP   [4]byte
	expectedErr  error
}

var ipParsingTests = []ipParseTest{
	{
		description:  "valid ip and port bind to all ipv4 addresses",
		input:        "0.0.0.0:9997",
		expectedPort: 9997,
		expectedIP:   [4]byte{0, 0, 0, 0},
		expectedErr:  nil,
	},
	{
		description:  "valid ip and port to defined address",
		input:        "192.168.1.1:9997",
		expectedPort: 9997,
		expectedIP:   [4]byte{0xc0, 0xa8, 0x1, 0x1},
		expectedErr:  nil,
	},
	{
		description: "invalid ip",
		input:       "192.1.1:9997",
		expectedErr: ErrInvalidIP,
	},
	{
		description: "invalid port",
		input:       "192.1.1.1:three-thousand",
		expectedErr: ErrInvalidPort,
	},
	{
		description: "invalid socket address format",
		input:       "192.1.1.1.9997",
		expectedErr: ErrInvalidSocketAddress,
	},
}

func TestIPParsing(t *testing.T) {
	for _, test := range ipParsingTests {
		t.Log("TEST:", test.description)
		port, ip, err := parseAddress(test.input)
		if test.expectedErr != nil {
			require.ErrorIs(t, test.expectedErr, err)
			continue
		}
		require.NoError(t, err)
		require.Equal(t, test.expectedPort, port)
		require.Equal(t, test.expectedIP, ip)
	}
}