You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
166 lines
5.2 KiB
Go
166 lines
5.2 KiB
Go
package db
|
|
|
|
import (
|
|
"bytes"
|
|
"os"
|
|
"testing"
|
|
"time"
|
|
)
|
|
|
|
// Test_WALDatabaseCheckpointOKNoWAL tests that a checkpoint succeeds
|
|
// even when no WAL file exists.
|
|
func Test_WALDatabaseCheckpointOKNoWAL(t *testing.T) {
|
|
path := mustTempFile()
|
|
defer os.Remove(path)
|
|
|
|
db, err := Open(path, false, true)
|
|
if err != nil {
|
|
t.Fatalf("failed to open database in WAL mode: %s", err.Error())
|
|
}
|
|
if !db.WALEnabled() {
|
|
t.Fatalf("WAL mode not enabled")
|
|
}
|
|
if fileExists(db.WALPath()) {
|
|
t.Fatalf("WAL file exists when no writes have happened")
|
|
}
|
|
defer db.Close()
|
|
if err := db.Checkpoint(CheckpointTruncate); err != nil {
|
|
t.Fatalf("failed to checkpoint database in WAL mode with non-existent WAL: %s", err.Error())
|
|
}
|
|
}
|
|
|
|
// Test_WALDatabaseCheckpointOKDelete tests that a checkpoint returns no error
|
|
// even when the database is opened in DELETE mode.
|
|
func Test_WALDatabaseCheckpointOKDelete(t *testing.T) {
|
|
path := mustTempFile()
|
|
defer os.Remove(path)
|
|
|
|
db, err := Open(path, false, false)
|
|
if err != nil {
|
|
t.Fatalf("failed to open database in DELETE mode: %s", err.Error())
|
|
}
|
|
if db.WALEnabled() {
|
|
t.Fatalf("WAL mode enabled")
|
|
}
|
|
defer db.Close()
|
|
if err := db.Checkpoint(CheckpointTruncate); err != nil {
|
|
t.Fatalf("failed to checkpoint database in DELETE mode: %s", err.Error())
|
|
}
|
|
}
|
|
|
|
// Test_WALDatabaseCheckpoint_Restart tests that a checkpoint restart
|
|
// returns no error and that the WAL file is not modified even though
|
|
// all the WAL pages are copied to the database file. Then Truncate
|
|
// is called and the WAL file is deleted.
|
|
func Test_WALDatabaseCheckpoint_RestartTruncate(t *testing.T) {
|
|
path := mustTempFile()
|
|
defer os.Remove(path)
|
|
db, err := Open(path, false, true)
|
|
if err != nil {
|
|
t.Fatalf("failed to open database in WAL mode: %s", err.Error())
|
|
}
|
|
defer db.Close()
|
|
|
|
_, err = db.ExecuteStringStmt(`CREATE TABLE foo (id INTEGER NOT NULL PRIMARY KEY, name TEXT)`)
|
|
if err != nil {
|
|
t.Fatalf("failed to execute on single node: %s", err.Error())
|
|
}
|
|
for i := 0; i < 50; i++ {
|
|
_, err := db.ExecuteStringStmt(`INSERT INTO foo(name) VALUES("fiona")`)
|
|
if err != nil {
|
|
t.Fatalf("failed to execute INSERT on single node: %s", err.Error())
|
|
}
|
|
}
|
|
|
|
walPreBytes, err := os.ReadFile(db.WALPath())
|
|
if err != nil {
|
|
t.Fatalf("failed to read wal file: %s", err.Error())
|
|
}
|
|
if err := db.Checkpoint(CheckpointRestart); err != nil {
|
|
t.Fatalf("failed to checkpoint database: %s", err.Error())
|
|
}
|
|
walPostBytes, err := os.ReadFile(db.WALPath())
|
|
if err != nil {
|
|
t.Fatalf("failed to read wal file: %s", err.Error())
|
|
}
|
|
if !bytes.Equal(walPreBytes, walPostBytes) {
|
|
t.Fatalf("wal files should be identical after checkpoint restart")
|
|
}
|
|
|
|
// query the data to make sure all is well.
|
|
rows, err := db.QueryStringStmt(`SELECT COUNT(*) FROM foo`)
|
|
if err != nil {
|
|
t.Fatalf("failed to execute query on single node: %s", err.Error())
|
|
}
|
|
if exp, got := `[{"columns":["COUNT(*)"],"types":["integer"],"values":[[50]]}]`, asJSON(rows); exp != got {
|
|
t.Fatalf("expected %s, got %s", exp, got)
|
|
}
|
|
|
|
if err := db.Checkpoint(CheckpointTruncate); err != nil {
|
|
t.Fatalf("failed to checkpoint database: %s", err.Error())
|
|
}
|
|
sz, err := fileSize(db.WALPath())
|
|
if err != nil {
|
|
t.Fatalf("wal file should be deleted after checkpoint truncate")
|
|
}
|
|
if sz != 0 {
|
|
t.Fatalf("wal file should be zero length after checkpoint truncate")
|
|
}
|
|
|
|
// query the data to make sure all is still well.
|
|
rows, err = db.QueryStringStmt(`SELECT COUNT(*) FROM foo`)
|
|
if err != nil {
|
|
t.Fatalf("failed to execute query on single node: %s", err.Error())
|
|
}
|
|
if exp, got := `[{"columns":["COUNT(*)"],"types":["integer"],"values":[[50]]}]`, asJSON(rows); exp != got {
|
|
t.Fatalf("expected %s, got %s", exp, got)
|
|
}
|
|
}
|
|
|
|
func Test_WALDatabaseCheckpoint_RestartTimeout(t *testing.T) {
|
|
path := mustTempFile()
|
|
defer os.Remove(path)
|
|
db, err := Open(path, false, true)
|
|
if err != nil {
|
|
t.Fatalf("failed to open database in WAL mode: %s", err.Error())
|
|
}
|
|
defer db.Close()
|
|
|
|
_, err = db.ExecuteStringStmt(`CREATE TABLE foo (id INTEGER NOT NULL PRIMARY KEY, name TEXT)`)
|
|
if err != nil {
|
|
t.Fatalf("failed to execute on single node: %s", err.Error())
|
|
}
|
|
for i := 0; i < 50; i++ {
|
|
_, err := db.ExecuteStringStmt(`INSERT INTO foo(name) VALUES("fiona")`)
|
|
if err != nil {
|
|
t.Fatalf("failed to execute INSERT on single node: %s", err.Error())
|
|
}
|
|
}
|
|
|
|
blockingDB, err := Open(path, false, true)
|
|
if err != nil {
|
|
t.Fatalf("failed to open blocking database in WAL mode: %s", err.Error())
|
|
}
|
|
defer blockingDB.Close()
|
|
_, err = blockingDB.QueryStringStmt(`BEGIN TRANSACTION`)
|
|
if err != nil {
|
|
t.Fatalf("failed to execute query on single node: %s", err.Error())
|
|
}
|
|
rows, err := blockingDB.QueryStringStmt(`SELECT COUNT(*) FROM foo`)
|
|
if err != nil {
|
|
t.Fatalf("failed to execute query on single node: %s", err.Error())
|
|
}
|
|
if exp, got := `[{"columns":["COUNT(*)"],"types":["integer"],"values":[[50]]}]`, asJSON(rows); exp != got {
|
|
t.Fatalf("expected %s, got %s", exp, got)
|
|
}
|
|
|
|
if err := db.CheckpointWithTimeout(CheckpointTruncate, 250*time.Millisecond); err != ErrCheckpointTimeout {
|
|
t.Fatal("expected timeout error")
|
|
}
|
|
|
|
blockingDB.Close()
|
|
if err := db.CheckpointWithTimeout(CheckpointTruncate, 250*time.Millisecond); err != nil {
|
|
t.Fatalf("failed to checkpoint database: %s", err.Error())
|
|
}
|
|
}
|