72 lines
2.0 KiB
Go
72 lines
2.0 KiB
Go
// Copyright 2023 LiveKit, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package utils
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import (
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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)
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func TestTimedVersion(t *testing.T) {
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t.Run("timed versions are monotonic and comparable", func(t *testing.T) {
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gen := NewDefaultTimedVersionGenerator()
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tv1 := gen.Next()
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tv2 := gen.Next()
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tv3 := gen.Next()
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require.True(t, tv3.After(tv1))
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require.True(t, tv3.After(tv2))
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require.True(t, tv2.After(tv1))
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tv2.Update(tv3)
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require.True(t, tv2.After(tv1))
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// tv3 and tv2 are equivalent after update
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require.False(t, tv3.After(tv2))
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require.Equal(t, 0, tv1.Compare(tv1))
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require.Equal(t, -1, tv1.Compare(tv2))
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require.Equal(t, 1, tv2.Compare(tv1))
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})
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t.Run("protobuf roundtrip", func(t *testing.T) {
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gen := NewDefaultTimedVersionGenerator()
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tv1 := gen.Next()
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tv2 := TimedVersionFromProto(tv1.ToProto())
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require.Equal(t, tv1, tv2)
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})
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t.Run("from zero time yields epoch version", func(t *testing.T) {
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gen := NewDefaultTimedVersionGenerator()
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tv1 := TimedVersionFromTime(time.Date(0, 0, 0, 0, 0, 0, 0, time.UTC))
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tv2 := gen.Next()
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require.True(t, tv2.After(tv1))
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})
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t.Run("time.Time roundtrip", func(t *testing.T) {
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ts1 := time.Now().Round(time.Microsecond)
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tv1 := TimedVersionFromTime(ts1)
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ts2 := tv1.Time()
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tv2 := TimedVersionFromTime(ts2)
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require.Equal(t, ts1, ts2)
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require.Equal(t, tv1, tv2)
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})
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t.Run("timed version from nil is zero", func(t *testing.T) {
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require.True(t, TimedVersionFromProto(nil).IsZero())
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})
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}
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