72 lines
1.6 KiB
Go
72 lines
1.6 KiB
Go
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// Copyright (C) 2021 Storj Labs, Inc.
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// See LICENSE for copying information.
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package metabase
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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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"storj.io/private/dbutil"
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)
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func TestLimitedAsOfSystemTime(t *testing.T) {
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const (
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unixNano = 1623324728961910000
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unixNanoStr = `1623324728961910000`
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)
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check := func(expect string, startNano, baselineNano int64, maxInterval time.Duration) {
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var start, baseline time.Time
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if startNano != 0 {
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start = time.Unix(0, startNano)
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}
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if baselineNano != 0 {
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baseline = time.Unix(0, baselineNano)
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}
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result := limitedAsOfSystemTime(dbutil.Cockroach, start, baseline, maxInterval)
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require.Equal(t, expect, result)
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}
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// baseline in the future
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check("",
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unixNano-time.Second.Nanoseconds(),
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unixNano,
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0,
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)
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// ignore interval when positive or zero
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check(" AS OF SYSTEM TIME '"+unixNanoStr+"' ",
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unixNano+time.Second.Nanoseconds(),
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unixNano,
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0,
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)
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check(" AS OF SYSTEM TIME '"+unixNanoStr+"' ",
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unixNano+time.Second.Nanoseconds(),
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unixNano,
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2*time.Second,
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)
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// ignore interval when it doesn't exceed the time difference
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check(" AS OF SYSTEM TIME '"+unixNanoStr+"' ",
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unixNano+time.Second.Nanoseconds(),
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unixNano,
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-time.Second,
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)
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// limit to interval when the time between now and baseline is large
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check(" AS OF SYSTEM TIME '-1s' ",
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unixNano+time.Minute.Nanoseconds(),
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unixNano,
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-time.Second,
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)
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// ignore now and baseline when either is zero
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check(" AS OF SYSTEM TIME '-1s' ", 0, unixNano, -time.Second)
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check(" AS OF SYSTEM TIME '-1s' ", unixNano, 0, -time.Second)
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check("", unixNano, 0, 0)
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check("", 0, unixNano, 0)
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}
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