Official Go implementation of the Ethereum protocol
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go-ethereum/swarm/storage/localstore/mode_get_test.go

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// Copyright 2018 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package localstore
import (
"bytes"
"testing"
"time"
)
// TestModeGetRequest validates ModeGetRequest index values on the provided DB.
func TestModeGetRequest(t *testing.T) {
db, cleanupFunc := newTestDB(t, nil)
defer cleanupFunc()
uploadTimestamp := time.Now().UTC().UnixNano()
defer setNow(func() (t int64) {
return uploadTimestamp
})()
chunk := generateRandomChunk()
err := db.NewPutter(ModePutUpload).Put(chunk)
if err != nil {
t.Fatal(err)
}
requester := db.NewGetter(ModeGetRequest)
// set update gc test hook to signal when
// update gc goroutine is done by sending to
// testHookUpdateGCChan channel, which is
// used to wait for garbage colletion index
// changes
testHookUpdateGCChan := make(chan struct{})
defer setTestHookUpdateGC(func() {
testHookUpdateGCChan <- struct{}{}
})()
t.Run("get unsynced", func(t *testing.T) {
got, err := requester.Get(chunk.Address())
if err != nil {
t.Fatal(err)
}
// wait for update gc goroutine to be done
<-testHookUpdateGCChan
if !bytes.Equal(got.Address(), chunk.Address()) {
t.Errorf("got chunk address %x, want %x", got.Address(), chunk.Address())
}
if !bytes.Equal(got.Data(), chunk.Data()) {
t.Errorf("got chunk data %x, want %x", got.Data(), chunk.Data())
}
t.Run("retrieve indexes", newRetrieveIndexesTestWithAccess(db, chunk, uploadTimestamp, 0))
t.Run("gc index count", newItemsCountTest(db.gcIndex, 0))
t.Run("gc size", newIndexGCSizeTest(db))
})
// set chunk to synced state
err = db.NewSetter(ModeSetSync).Set(chunk.Address())
if err != nil {
t.Fatal(err)
}
t.Run("first get", func(t *testing.T) {
got, err := requester.Get(chunk.Address())
if err != nil {
t.Fatal(err)
}
// wait for update gc goroutine to be done
<-testHookUpdateGCChan
if !bytes.Equal(got.Address(), chunk.Address()) {
t.Errorf("got chunk address %x, want %x", got.Address(), chunk.Address())
}
if !bytes.Equal(got.Data(), chunk.Data()) {
t.Errorf("got chunk data %x, want %x", got.Data(), chunk.Data())
}
t.Run("retrieve indexes", newRetrieveIndexesTestWithAccess(db, chunk, uploadTimestamp, uploadTimestamp))
t.Run("gc index", newGCIndexTest(db, chunk, uploadTimestamp, uploadTimestamp))
t.Run("gc index count", newItemsCountTest(db.gcIndex, 1))
t.Run("gc size", newIndexGCSizeTest(db))
})
t.Run("second get", func(t *testing.T) {
accessTimestamp := time.Now().UTC().UnixNano()
defer setNow(func() (t int64) {
return accessTimestamp
})()
got, err := requester.Get(chunk.Address())
if err != nil {
t.Fatal(err)
}
// wait for update gc goroutine to be done
<-testHookUpdateGCChan
if !bytes.Equal(got.Address(), chunk.Address()) {
t.Errorf("got chunk address %x, want %x", got.Address(), chunk.Address())
}
if !bytes.Equal(got.Data(), chunk.Data()) {
t.Errorf("got chunk data %x, want %x", got.Data(), chunk.Data())
}
t.Run("retrieve indexes", newRetrieveIndexesTestWithAccess(db, chunk, uploadTimestamp, accessTimestamp))
t.Run("gc index", newGCIndexTest(db, chunk, uploadTimestamp, accessTimestamp))
t.Run("gc index count", newItemsCountTest(db.gcIndex, 1))
t.Run("gc size", newIndexGCSizeTest(db))
})
}
// TestModeGetSync validates ModeGetSync index values on the provided DB.
func TestModeGetSync(t *testing.T) {
db, cleanupFunc := newTestDB(t, nil)
defer cleanupFunc()
uploadTimestamp := time.Now().UTC().UnixNano()
defer setNow(func() (t int64) {
return uploadTimestamp
})()
chunk := generateRandomChunk()
err := db.NewPutter(ModePutUpload).Put(chunk)
if err != nil {
t.Fatal(err)
}
got, err := db.NewGetter(ModeGetSync).Get(chunk.Address())
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(got.Address(), chunk.Address()) {
t.Errorf("got chunk address %x, want %x", got.Address(), chunk.Address())
}
if !bytes.Equal(got.Data(), chunk.Data()) {
t.Errorf("got chunk data %x, want %x", got.Data(), chunk.Data())
}
t.Run("retrieve indexes", newRetrieveIndexesTestWithAccess(db, chunk, uploadTimestamp, 0))
t.Run("gc index count", newItemsCountTest(db.gcIndex, 0))
t.Run("gc size", newIndexGCSizeTest(db))
}
// setTestHookUpdateGC sets testHookUpdateGC and
// returns a function that will reset it to the
// value before the change.
func setTestHookUpdateGC(h func()) (reset func()) {
current := testHookUpdateGC
reset = func() { testHookUpdateGC = current }
testHookUpdateGC = h
return reset
}
// TestSetTestHookUpdateGC tests if setTestHookUpdateGC changes
// testHookUpdateGC function correctly and if its reset function
// resets the original function.
func TestSetTestHookUpdateGC(t *testing.T) {
// Set the current function after the test finishes.
defer func(h func()) { testHookUpdateGC = h }(testHookUpdateGC)
// expected value for the unchanged function
original := 1
// expected value for the changed function
changed := 2
// this variable will be set with two different functions
var got int
// define the original (unchanged) functions
testHookUpdateGC = func() {
got = original
}
// set got variable
testHookUpdateGC()
// test if got variable is set correctly
if got != original {
t.Errorf("got hook value %v, want %v", got, original)
}
// set the new function
reset := setTestHookUpdateGC(func() {
got = changed
})
// set got variable
testHookUpdateGC()
// test if got variable is set correctly to changed value
if got != changed {
t.Errorf("got hook value %v, want %v", got, changed)
}
// set the function to the original one
reset()
// set got variable
testHookUpdateGC()
// test if got variable is set correctly to original value
if got != original {
t.Errorf("got hook value %v, want %v", got, original)
}
}