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https://github.com/dolthub/dolt.git
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03b7221c36
stretchr has fixed a bug with the -count flag. I could merge these changes into attic-labs, but it's easier to just use strechr. We forked stretchr a long time ago so that we didn't link in the HTTP testing libraries into the noms binaries (because we were using d.Chk in production code). The HTTP issue doesn't seem to happen anymore, even though we're still using d.Chk.
113 lines
2.8 KiB
Go
113 lines
2.8 KiB
Go
// Copyright 2017 Attic Labs, Inc. All rights reserved.
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// Licensed under the Apache License, version 2.0:
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// http://www.apache.org/licenses/LICENSE-2.0
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package nbs
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import (
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"bytes"
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"io"
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"io/ioutil"
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"os"
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"path/filepath"
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"sort"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestFSTableCache(t *testing.T) {
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datas := [][]byte{[]byte("hello"), []byte("world"), []byte("goodbye")}
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sort.SliceStable(datas, func(i, j int) bool { return len(datas[i]) < len(datas[j]) })
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t.Run("ExpireLRU", func(t *testing.T) {
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t.Parallel()
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dir := makeTempDir(t)
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defer os.RemoveAll(dir)
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sum := 0
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for _, s := range datas[1:] {
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sum += len(s)
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}
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tc := newFSTableCache(dir, uint64(sum), len(datas))
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for _, d := range datas {
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tc.store(computeAddr(d), bytes.NewReader(d), uint64(len(d)))
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}
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expiredName := computeAddr(datas[0])
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assert.Nil(t, tc.checkout(expiredName))
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_, fserr := os.Stat(filepath.Join(dir, expiredName.String()))
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assert.True(t, os.IsNotExist(fserr))
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for _, d := range datas[1:] {
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name := computeAddr(d)
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r := tc.checkout(name)
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assert.NotNil(t, r)
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assertDataInReaderAt(t, d, r)
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_, fserr := os.Stat(filepath.Join(dir, name.String()))
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assert.False(t, os.IsNotExist(fserr))
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}
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})
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t.Run("Init", func(t *testing.T) {
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t.Run("Success", func(t *testing.T) {
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t.Parallel()
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dir := makeTempDir(t)
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defer os.RemoveAll(dir)
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assert := assert.New(t)
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names := []addr{}
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for i := byte(0); i < 4; i++ {
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name := computeAddr([]byte{i})
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assert.NoError(ioutil.WriteFile(filepath.Join(dir, name.String()), nil, 0666))
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names = append(names, name)
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}
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var ftc *fsTableCache
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assert.NotPanics(func() { ftc = newFSTableCache(dir, 1024, 4) })
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assert.NotNil(ftc)
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for _, name := range names {
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assert.NotNil(ftc.checkout(name))
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}
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})
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t.Run("BadFile", func(t *testing.T) {
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t.Parallel()
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dir := makeTempDir(t)
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defer os.RemoveAll(dir)
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assert.NoError(t, ioutil.WriteFile(filepath.Join(dir, "boo"), nil, 0666))
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assert.Panics(t, func() { newFSTableCache(dir, 1024, 4) })
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})
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t.Run("ClearTempFile", func(t *testing.T) {
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t.Parallel()
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dir := makeTempDir(t)
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defer os.RemoveAll(dir)
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tempFile := filepath.Join(dir, tempTablePrefix+"boo")
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assert.NoError(t, ioutil.WriteFile(tempFile, nil, 0666))
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assert.NotPanics(t, func() { newFSTableCache(dir, 1024, 4) })
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_, fserr := os.Stat(tempFile)
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assert.True(t, os.IsNotExist(fserr))
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})
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t.Run("Dir", func(t *testing.T) {
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t.Parallel()
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dir := makeTempDir(t)
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defer os.RemoveAll(dir)
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assert.NoError(t, os.Mkdir(filepath.Join(dir, "sub"), 0777))
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assert.Panics(t, func() { newFSTableCache(dir, 1024, 4) })
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})
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})
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}
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func assertDataInReaderAt(t *testing.T, data []byte, r io.ReaderAt) {
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p := make([]byte, len(data))
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n, err := r.ReadAt(p, 0)
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assert.NoError(t, err)
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assert.Equal(t, len(data), n)
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assert.Equal(t, data, p)
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}
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