package decoder_test

import (
	"io"
	"strings"
	"testing"

	"dnsupdater/ip/resolver/decoder"

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

func TestService_Name(t *testing.T) {
	tests := []struct {
		name        string
		input       string
		expected    string
		expectError error
	}{
		{
			name:        "simple",
			input:       "192.168.0.1",
			expected:    "192.168.0.1",
			expectError: io.EOF,
		},
		{
			name:        "whitespace",
			input:       "  192.168.0.1  ",
			expected:    "192.168.0.1",
			expectError: io.EOF,
		},
		{
			name:     "newline",
			input:    "192.168.0.1\r\nmore stuff",
			expected: "192.168.0.1",
		},
	}

	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			ip, err := decoder.Text(strings.NewReader(test.input))
			assert.ErrorIs(t, err, test.expectError)
			assert.Equal(t, test.expected, ip)
		})
	}
}