package errors

import (
	"os"
	"testing"

	"github.com/go-playground/validator/v10"
	"github.com/stretchr/testify/assert"
)

func TestMain(m *testing.M) {
	os.Exit(m.Run())
}

func TestNewFieldErrorDetail(t *testing.T) {
	testCases := map[string]struct {
		err      validator.FieldError
		expected string
	}{
		"Required": {
			err: &testFieldError{
				field: "example",
				tag:   "required",
			},
			expected: NewRequiredFieldMessage("example"),
		},
		"HostnameRFC1123": {
			err: &testFieldError{
				field: "example",
				tag:   "hostname_rfc1123",
			},
			expected: NewInvalidRFC1123HostnameMessage("example"),
		},
	}

	for name, tc := range testCases {
		t.Run(name, func(t *testing.T) {
			msg := NewFieldErrorDetail(tc.err)
			assert.Equal(t, tc.expected, msg)
		})
	}
}

type testFieldError struct {
	validator.FieldError

	tag   string
	field string
}

func (fe *testFieldError) Tag() string {
	return fe.tag
}

func (fe *testFieldError) Field() string {
	return fe.field
}