git.giacomolli.uk - onehouse/blob - protocol/identifier_test.go

   1 package protocol
   2
   3 import (
   4         "testing"
   5         "time"
   6
   7         "github.com/stretchr/testify/require"
   8 )
   9
  10 func TestNewIDPreservesTimestampAndAddsRandomness(t *testing.T) {
  11         now := time.UnixMilli(1234567890123)
  12         first, err := NewID(now)
  13         require.NoError(t, err)
  14
  15         second, err := NewID(now)
  16         require.NoError(t, err)
  17         require.True(t, ValidID(first))
  18         require.NotEqual(t, first, second)
  19         require.Equal(t, first[:10], second[:10])
  20
  21         var milliseconds int64
  22
  23         for _, character := range first[:10] {
  24                 for index, candidate := range idAlphabet {
  25                         if candidate == character {
  26                                 milliseconds = milliseconds*32 + int64(index)
  27                         }
  28                 }
  29         }
  30
  31         require.Equal(t, now.UnixMilli(), milliseconds)
  32
  33         _, err = NewID(time.UnixMilli(-1))
  34         require.Error(t, err)
  35
  36         _, err = NewID(time.UnixMilli(1 << 48))
  37         require.Error(t, err)
  38 }
  39
  40 func TestIdentifiersRejectNoncanonicalText(t *testing.T) {
  41         require.True(t, ValidID(deviceID))
  42
  43         for _, value := range []string{"", "8123456789ABCDEFGHJKMNPQRST", "0123456789abcdefghjkmnpqrst", "0123456789ABCDEFGHIKMNPQRST"} {
  44                 require.False(t, ValidID(value), value)
  45         }
  46
  47         for _, value := range []string{"relay", "a0.b1-c2"} {
  48                 require.True(t, ValidIdentifier(value), value)
  49         }
  50
  51         for _, value := range []string{"", "-relay", "relay.", "a..b", "a.-b", "a_b", "A", "+", "#"} {
  52                 require.False(t, ValidIdentifier(value), value)
  53         }
  54 }