generic_go1.18_test.go

//go:build go1.18
// +build go1.18

package usecase_test

import (
	"context"
	"strconv"
	"testing"

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

func TestNewIOI_classic(t *testing.T) {
	u := usecase.NewIOI(0, new(string), func(ctx context.Context, input, output interface{}) error {
		in, ok := input.(int)
		assert.True(t, ok)

		out, ok := output.(*string)
		assert.True(t, ok)

		*out = strconv.Itoa(in)

		return nil
	})

	ctx := context.Background()

	var out string

	assert.NoError(t, u.Interact(ctx, 123, &out))
	assert.Equal(t, "123", out)
}

func TestNewInteractor(t *testing.T) {
	u := usecase.NewInteractor(func(ctx context.Context, input int, output *string) error {
		*output = strconv.Itoa(input)

		return nil
	}, func(i *usecase.IOInteractor) {
		i.SetTags("foo")
	})

	u.SetDescription("Foo.")

	ctx := context.Background()

	var out string

	assert.NoError(t, u.Interact(ctx, 123, &out))
	assert.Equal(t, "123", out)

	out = ""
	assert.NoError(t, u.Invoke(ctx, 123, &out))
	assert.Equal(t, "123", out)

	assert.Equal(t, "invalid type", usecase.ErrInvalidType.Error())

	assert.Equal(t, []string{"foo"}, u.Tags())
}