fuid_test.go

package fuid_test

import (
	"testing"

	"github.com/bsm/fuid"
)

var fixtures = []struct {
	F string
	U string
}{
	{F: "WCSV3oHUQbOlNGLc1qUZqA", U: "582495de-81d4-41b3-a534-62dcd6a519a8"},
	{F: "t-dJ9X1zQ4mmZ84hX-Hl3Q", U: "b7e749f5-7d73-4389-a667-ce215fe1e5dd"},
	{F: "HpegzQv3QRKqbDJkMn_TcA", U: "1e97a0cd-0bf7-4112-aa6c-3264327fd370"},
	{F: "qaysnQSLR4mXtRv__A0SdA", U: "a9acac9d-048b-4789-97b5-1bfffc0d1274"},
	{F: "_IlPjHRej2ZRtujH6zf--Q", U: "fc894f8c-745e-8f66-51b6-e8c7eb37fef9"},
}

func TestFUIDString(t *testing.T) {
	u := fuid.New()
	if s := u.String(); len(s) != 22 {
		t.Errorf("expected %q to be 22 chars long", s)
	}
}

func TestParse(t *testing.T) {
	t.Run("base64", func(t *testing.T) {
		for _, c := range fixtures {
			u, err := fuid.Parse(c.F)
			if err != nil {
				t.Errorf("unexpected error %v, for input %q", err, c.F)
			} else if got := u.UUID().String(); c.U != got {
				t.Errorf("expected %q for input %q but got: %q", c.U, c.F, got)
			}
		}
	})

	t.Run("bad base64", func(t *testing.T) {
		cases := []struct {
			I string
			C string
		}{
			{I: "WC3oHUQbOlNGLc1qUZqA", C: "too short"},
			{I: "qoVz0bXNjZ3492SbdNZ/p6", C: "not URL encoded"},
		}

		for _, c := range cases {
			_, err := fuid.Parse(c.I)
			if err == nil {
				t.Errorf("unexpected error %q, got not", c.C)
			}
		}
	})

	t.Run("quoted", func(t *testing.T) {
		u, err := fuid.Parse(`"WCSV3oHUQbOlNGLc1qUZqA"`)
		if err != nil {
			t.Error("unexpected error", err)
		} else if exp, got := fixtures[0].F, u.String(); exp != got {
			t.Errorf("expected %q but got: %q", exp, got)
		}
	})

	t.Run("from UUIDs", func(t *testing.T) {
		for _, c := range fixtures {
			u, err := fuid.Parse(c.U)
			if err != nil {
				t.Errorf("unexpected error %v, for input %q", err, c.U)
			} else if exp, got := c.F, u.String(); exp != got {
				t.Errorf("expected %q for input %q but got: %q", c.F, c.U, got)
			}
		}
	})
}