mirror of
https://source.quilibrium.com/quilibrium/ceremonyclient.git
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95 lines
2.3 KiB
Go
95 lines
2.3 KiB
Go
// Copyright 2019 The LevelDB-Go and Pebble Authors. All rights reserved. Use
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// of this source code is governed by a BSD-style license that can be found in
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// the LICENSE file.
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package keyspan
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import (
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"bytes"
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"fmt"
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"strings"
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"testing"
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"github.com/cockroachdb/datadriven"
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"github.com/cockroachdb/pebble/internal/base"
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)
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func TestTruncate(t *testing.T) {
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cmp := base.DefaultComparer.Compare
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fmtKey := base.DefaultComparer.FormatKey
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var iter FragmentIterator
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var savedIter FragmentIterator
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defer func() {
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if savedIter != nil {
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savedIter.Close()
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savedIter = nil
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}
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}()
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datadriven.RunTest(t, "testdata/truncate", func(t *testing.T, d *datadriven.TestData) string {
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doTruncate := func() FragmentIterator {
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if len(d.Input) > 0 {
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t.Fatalf("unexpected input: %s", d.Input)
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}
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if len(d.CmdArgs) < 1 || len(d.CmdArgs) > 3 {
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t.Fatalf("expected 1-3 arguments: %s", d.CmdArgs)
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}
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parts := strings.Split(d.CmdArgs[0].String(), "-")
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var startKey, endKey *base.InternalKey
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if len(d.CmdArgs) > 1 {
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for _, arg := range d.CmdArgs[1:] {
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switch arg.Key {
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case "startKey":
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startKey = &base.InternalKey{}
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*startKey = base.ParseInternalKey(arg.Vals[0])
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case "endKey":
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endKey = &base.InternalKey{}
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*endKey = base.ParseInternalKey(arg.Vals[0])
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}
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}
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}
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if len(parts) != 2 {
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t.Fatalf("malformed arg: %s", d.CmdArgs[0])
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}
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lower := []byte(parts[0])
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upper := []byte(parts[1])
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tIter := Truncate(
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cmp, iter, lower, upper, startKey, endKey, false,
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)
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return tIter
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}
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switch d.Cmd {
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case "build":
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tombstones := buildSpans(t, cmp, fmtKey, d.Input, base.InternalKeyKindRangeDelete)
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iter = NewIter(cmp, tombstones)
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return formatAlphabeticSpans(tombstones)
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case "truncate":
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tIter := doTruncate()
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defer tIter.Close()
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var truncated []Span
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for s := tIter.First(); s != nil; s = tIter.Next() {
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truncated = append(truncated, s.ShallowClone())
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}
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return formatAlphabeticSpans(truncated)
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case "truncate-and-save-iter":
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if savedIter != nil {
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savedIter.Close()
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}
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savedIter = doTruncate()
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return "ok"
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case "saved-iter":
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var buf bytes.Buffer
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runIterCmd(t, d, savedIter, &buf)
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return buf.String()
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default:
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return fmt.Sprintf("unknown command: %s", d.Cmd)
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}
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})
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}
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