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// Copyright 2017 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package uid
import (
"fmt"
"testing"
"time"
)
func TestNew(t *testing.T) {
tm := time.Date(2017, 1, 6, 0, 0, 0, 21, time.UTC)
s := NewSpace("prefix", &Options{Time: tm})
got := s.New()
want := "prefix-20170106-21-0001"
if got != want {
t.Errorf("got %q, want %q", got, want)
}
s2 := NewSpace("prefix2", &Options{Sep: '_', Time: tm})
got = s2.New()
want = "prefix2_20170106_21_0001"
if got != want {
t.Errorf("got %q, want %q", got, want)
}
}
func TestTimestamp(t *testing.T) {
s := NewSpace("unique-ID", nil)
startTime := s.Time
uid := s.New()
got, ok := s.Timestamp(uid)
if !ok {
t.Fatal("got ok = false, want true")
}
if !startTime.Equal(got) {
t.Errorf("got %s, want %s", got, startTime)
}
got, ok = s.Timestamp("unique-ID-20160308-123-8")
if !ok {
t.Fatal("got false, want true")
}
if want := time.Date(2016, 3, 8, 0, 0, 0, 123, time.UTC); !want.Equal(got) {
t.Errorf("got %s, want %s", got, want)
}
if _, ok = s.Timestamp("invalid-time-1234"); ok {
t.Error("got true, want false")
}
}
func TestOlder(t *testing.T) {
s := NewSpace("uid", nil)
// A non-matching ID returns false.
id2 := NewSpace("different-prefix", nil).New()
if got, want := s.Older(id2, time.Second), false; got != want {
t.Errorf("got %t, want %t", got, want)
}
}
func TestShorter(t *testing.T) {
now := time.Now()
shortSpace := NewSpace("uid", &Options{Short: true, Time: now})
shortUID := shortSpace.New()
want := fmt.Sprintf("uid-%d-01", now.UnixNano())
if shortUID != want {
t.Fatalf("expected %s, got %s", want, shortUID)
}
if got, ok := shortSpace.Timestamp(shortUID); !ok {
t.Fatal("expected to be able to parse timestamp from short space, but was unable to")
} else if got.UnixNano() != now.UnixNano() {
t.Fatalf("expected to get %v, got %v", now, got)
}
}
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