Merge remote-tracking branch 'origin' into queries-only-do-local
Philip O'Toole
8 months ago
commit
039e907e3f
@ -0,0 +1,165 @@
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package db
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import (
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"bytes"
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"os"
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"testing"
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"time"
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)
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// Test_WALDatabaseCheckpointOKNoWAL tests that a checkpoint succeeds
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// even when no WAL file exists.
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func Test_WALDatabaseCheckpointOKNoWAL(t *testing.T) {
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path := mustTempFile()
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defer os.Remove(path)
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db, err := Open(path, false, true)
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if err != nil {
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t.Fatalf("failed to open database in WAL mode: %s", err.Error())
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}
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if !db.WALEnabled() {
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t.Fatalf("WAL mode not enabled")
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}
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if fileExists(db.WALPath()) {
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t.Fatalf("WAL file exists when no writes have happened")
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}
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defer db.Close()
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if err := db.Checkpoint(CheckpointTruncate); err != nil {
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t.Fatalf("failed to checkpoint database in WAL mode with non-existent WAL: %s", err.Error())
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}
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}
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// Test_WALDatabaseCheckpointOKDelete tests that a checkpoint returns no error
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// even when the database is opened in DELETE mode.
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func Test_WALDatabaseCheckpointOKDelete(t *testing.T) {
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path := mustTempFile()
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defer os.Remove(path)
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db, err := Open(path, false, false)
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if err != nil {
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t.Fatalf("failed to open database in DELETE mode: %s", err.Error())
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}
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if db.WALEnabled() {
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t.Fatalf("WAL mode enabled")
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}
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defer db.Close()
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if err := db.Checkpoint(CheckpointTruncate); err != nil {
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t.Fatalf("failed to checkpoint database in DELETE mode: %s", err.Error())
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}
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}
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// Test_WALDatabaseCheckpoint_Restart tests that a checkpoint restart
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// returns no error and that the WAL file is not modified even though
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// all the WAL pages are copied to the database file. Then Truncate
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// is called and the WAL file is deleted.
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func Test_WALDatabaseCheckpoint_RestartTruncate(t *testing.T) {
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path := mustTempFile()
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defer os.Remove(path)
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db, err := Open(path, false, true)
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if err != nil {
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t.Fatalf("failed to open database in WAL mode: %s", err.Error())
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}
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defer db.Close()
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_, err = db.ExecuteStringStmt(`CREATE TABLE foo (id INTEGER NOT NULL PRIMARY KEY, name TEXT)`)
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if err != nil {
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t.Fatalf("failed to execute on single node: %s", err.Error())
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}
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for i := 0; i < 50; i++ {
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_, err := db.ExecuteStringStmt(`INSERT INTO foo(name) VALUES("fiona")`)
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if err != nil {
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t.Fatalf("failed to execute INSERT on single node: %s", err.Error())
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}
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}
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walPreBytes, err := os.ReadFile(db.WALPath())
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if err != nil {
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t.Fatalf("failed to read wal file: %s", err.Error())
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}
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if err := db.Checkpoint(CheckpointRestart); err != nil {
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t.Fatalf("failed to checkpoint database: %s", err.Error())
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}
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walPostBytes, err := os.ReadFile(db.WALPath())
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if err != nil {
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t.Fatalf("failed to read wal file: %s", err.Error())
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}
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if !bytes.Equal(walPreBytes, walPostBytes) {
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t.Fatalf("wal files should be identical after checkpoint restart")
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}
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// query the data to make sure all is well.
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rows, err := db.QueryStringStmt(`SELECT COUNT(*) FROM foo`)
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if err != nil {
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t.Fatalf("failed to execute query on single node: %s", err.Error())
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}
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if exp, got := `[{"columns":["COUNT(*)"],"types":["integer"],"values":[[50]]}]`, asJSON(rows); exp != got {
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t.Fatalf("expected %s, got %s", exp, got)
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}
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if err := db.Checkpoint(CheckpointTruncate); err != nil {
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t.Fatalf("failed to checkpoint database: %s", err.Error())
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}
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sz, err := fileSize(db.WALPath())
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if err != nil {
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t.Fatalf("wal file should be deleted after checkpoint truncate")
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}
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if sz != 0 {
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t.Fatalf("wal file should be zero length after checkpoint truncate")
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}
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// query the data to make sure all is still well.
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rows, err = db.QueryStringStmt(`SELECT COUNT(*) FROM foo`)
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if err != nil {
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t.Fatalf("failed to execute query on single node: %s", err.Error())
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}
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if exp, got := `[{"columns":["COUNT(*)"],"types":["integer"],"values":[[50]]}]`, asJSON(rows); exp != got {
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t.Fatalf("expected %s, got %s", exp, got)
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}
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}
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func Test_WALDatabaseCheckpoint_RestartTimeout(t *testing.T) {
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path := mustTempFile()
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defer os.Remove(path)
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db, err := Open(path, false, true)
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if err != nil {
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t.Fatalf("failed to open database in WAL mode: %s", err.Error())
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}
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defer db.Close()
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_, err = db.ExecuteStringStmt(`CREATE TABLE foo (id INTEGER NOT NULL PRIMARY KEY, name TEXT)`)
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if err != nil {
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t.Fatalf("failed to execute on single node: %s", err.Error())
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}
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for i := 0; i < 50; i++ {
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_, err := db.ExecuteStringStmt(`INSERT INTO foo(name) VALUES("fiona")`)
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if err != nil {
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t.Fatalf("failed to execute INSERT on single node: %s", err.Error())
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}
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}
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blockingDB, err := Open(path, false, true)
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if err != nil {
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t.Fatalf("failed to open blocking database in WAL mode: %s", err.Error())
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}
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defer blockingDB.Close()
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_, err = blockingDB.QueryStringStmt(`BEGIN TRANSACTION`)
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if err != nil {
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t.Fatalf("failed to execute query on single node: %s", err.Error())
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}
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rows, err := blockingDB.QueryStringStmt(`SELECT COUNT(*) FROM foo`)
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if err != nil {
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t.Fatalf("failed to execute query on single node: %s", err.Error())
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}
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if exp, got := `[{"columns":["COUNT(*)"],"types":["integer"],"values":[[50]]}]`, asJSON(rows); exp != got {
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t.Fatalf("expected %s, got %s", exp, got)
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}
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if err := db.CheckpointWithTimeout(CheckpointTruncate, 250*time.Millisecond); err == nil {
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t.Fatal("expected error due to failure to checkpoint")
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}
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blockingDB.Close()
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if err := db.CheckpointWithTimeout(CheckpointTruncate, 250*time.Millisecond); err != nil {
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t.Fatalf("failed to checkpoint database: %s", err.Error())
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}
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}
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