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sqlite_test.go
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// Copyright (c) 2018 David Crawshaw <david@zentus.com>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
package sqlite_test
import (
"bytes"
"context"
"io"
"io/ioutil"
"os"
"path/filepath"
"reflect"
"sort"
"strings"
"testing"
"time"
"crawshaw.io/sqlite"
"crawshaw.io/sqlite/sqlitex"
)
func TestConn(t *testing.T) {
c, err := sqlite.OpenConn(":memory:", 0)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := c.Close(); err != nil {
t.Error(err)
}
}()
stmt, _, err := c.PrepareTransient("CREATE TABLE bartable (foo1 string, foo2 integer);")
if err != nil {
t.Fatal(err)
}
hasRow, err := stmt.Step()
if err != nil {
t.Fatal(err)
}
if hasRow {
t.Errorf("CREATE TABLE reports having a row")
}
if err := stmt.Finalize(); err != nil {
t.Error(err)
}
fooVals := []string{
"bar",
"baz",
"bop",
}
for i, val := range fooVals {
stmt, err := c.Prepare("INSERT INTO bartable (foo1, foo2) VALUES ($f1, $f2);")
if err != nil {
t.Fatal(err)
}
stmt.SetText("$f1", val)
stmt.SetInt64("$f2", int64(i))
hasRow, err = stmt.Step()
if err != nil {
t.Errorf("INSERT %q: %v", val, err)
}
if hasRow {
t.Errorf("INSERT %q: has row", val)
}
}
stmt, err = c.Prepare("SELECT foo1, foo2 FROM bartable;")
if err != nil {
t.Fatal(err)
}
gotVals := []string{}
gotInts := []int64{}
for {
hasRow, err := stmt.Step()
if err != nil {
t.E
E7F5
rrorf("SELECT: %v", err)
}
if !hasRow {
break
}
val := stmt.ColumnText(0)
if getVal := stmt.GetText("foo1"); getVal != val {
t.Errorf(`GetText("foo1")=%q, want %q`, getVal, val)
}
intVal := stmt.ColumnInt64(1)
if getIntVal := stmt.GetInt64("foo2"); getIntVal != intVal {
t.Errorf(`GetText("foo2")=%q, want %q`, getIntVal, intVal)
}
typ := stmt.ColumnType(0)
if typ != sqlite.SQLITE_TEXT {
t.Errorf(`ColumnType(0)=%q, want %q`, typ, sqlite.SQLITE_TEXT)
}
if getType := stmt.GetType("foo1"); getType != typ {
t.Errorf(`GetType("foo1")=%q, want %q`, getType, typ)
}
intTyp := stmt.ColumnType(1)
if intTyp != sqlite.SQLITE_INTEGER {
t.Errorf(`ColumnType(1)=%q, want %q`, intTyp, sqlite.SQLITE_INTEGER)
}
if getIntType := stmt.GetType("foo2"); getIntType != intTyp {
t.Errorf(`GetType("foo2")=%q, want %q`, getIntType, intTyp)
}
gotVals = append(gotVals, val)
gotInts = append(gotInts, intVal)
}
if !reflect.DeepEqual(fooVals, gotVals) {
t.Errorf("SELECT foo1: got %v, want %v", gotVals, fooVals)
}
wantInts := []int64{0, 1, 2}
if !reflect.DeepEqual(wantInts, gotInts) {
t.Errorf("SELECT foo2: got %v, want %v", gotInts, wantInts)
}
}
func TestEarlyInterrupt(t *testing.T) {
c, err := sqlite.OpenConn(":memory:", 0)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := c.Close(); err != nil {
t.Error(err)
}
}()
ctx, cancel := context.WithCancel(context.Background())
c.SetInterrupt(ctx.Done())
stmt, _, err := c.PrepareTransient("CREATE TABLE bartable (foo1 string, foo2 integer);")
if err != nil {
t.Fatal(err)
}
if _, err := stmt.Step(); err != nil {
t.Fatal(err)
}
stmt.Finalize()
cancel()
stmt, err = c.Prepare("INSERT INTO bartable (foo1, foo2) VALUES ($f1, $f2);")
if err == nil {
t.Fatal("Prepare err=nil, want prepare to fail")
}
if code := sqlite.ErrCode(err); code != sqlite.SQLITE_INTERRUPT {
t.Fatalf("Prepare err=%s, want SQLITE_INTERRUPT", code)
}
}
func TestStmtInterrupt(t *testing.T) {
conn, err := sqlite.OpenConn(":memory:", 0)
if err != nil {
t.Fatal(err)
}
defer conn.Close()
stmt := sqlite.InterruptedStmt(conn, "CREATE TABLE intt (c);")
_, err = stmt.Step()
if err == nil {
t.Fatal("interrupted stmt Step succeeded")
}
if got := sqlite.ErrCode(err); got != sqlite.SQLITE_INTERRUPT {
t.Errorf("Step err=%v, want SQLITE_INTERRUPT", got)
}
}
func TestInterruptStepReset(t *testing.T) {
c, err := sqlite.OpenConn(":memory:", 0)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := c.Close(); err != nil {
t.Error(err)
}
}()
err = sqlitex.ExecScript(c, `CREATE TABLE resetint (c);
INSERT INTO resetint (c) VALUES (1);
INSERT INTO resetint (c) VALUES (2);
INSERT INTO resetint (c) VALUES (3);`)
if err != nil {
t.Fatal(err)
}
ctx, cancel := context.WithCancel(context.Background())
c.SetInterrupt(ctx.Done())
stmt := c.Prep("SELECT * FROM resetint;")
if _, err := stmt.Step(); err != nil {
t.Fatal(err)
}
cancel()
// next Step needs to reset stmt
if _, err := stmt.Step(); sqlite.ErrCode(err) != sqlite.SQLITE_INTERRUPT {
t.Fatalf("want SQLITE_INTERRUPT, got %v", err)
}
c.SetInterrupt(nil)
stmt = c.Prep("SELECT c FROM resetint ORDER BY c;")
if _, err := stmt.Step(); err != nil {
t.Fatalf("statement after interrupt reset failed: %v", err)
}
stmt.Reset()
}
func TestInterruptReset(t *testing.T) {
c, err := sqlite.OpenConn(":memory:", 0)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := c.Close(); err != nil {
t.Error(err)
}
}()
err = sqlitex.ExecScript(c, `CREATE TABLE resetint (c);
INSERT INTO resetint (c) VALUES (1);
INSERT INTO resetint (c) VALUES (2);
INSERT INTO resetint (c) VALUES (3);`)
if err != nil {
t.Fatal(err)
}
ctx, cancel := context.WithCancel(context.Background())
c.SetInterrupt(ctx.Done())
stmt := c.Prep("SELECT * FROM resetint;")
if _, err := stmt.Step(); err != nil {
t.Fatal(err)
}
cancel()
c.SetInterrupt(nil)
stmt = c.Prep("SELECT c FROM resetint ORDER BY c;")
if _, err := stmt.Step(); err != nil {
t.Fatalf("statement after interrupt reset failed: %v", err)
}
stmt.Reset()
}
func TestTrailingBytes(t *testing.T) {
conn, err := sqlite.OpenConn(":memory:", 0)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := conn.Close(); err != nil {
t.Error(err)
}
}()
stmt, trailingBytes, err := conn.PrepareTransient("BEGIN; -- 56")
if err != nil {
t.Error(err)
}
stmt.Finalize()
const want = 6
if trailingBytes != want {
t.Errorf("trailingBytes=%d, want %d", trailingBytes, want)
}
}
func TestTrailingBytesError(t *testing.T) {
conn, err := sqlite.OpenConn(":memory:", 0)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := conn.Close(); err != nil {
t.Error(err)
}
}()
if _, err := conn.Prepare("BEGIN; -- 56"); err == nil {
t.Error("expecting error on trailing bytes")
}
}
func TestBadParam(t *testing.T) {
c, err := sqlite.OpenConn(":memory:", 0)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := c.Close(); err != nil {
t.Error(err)
}
}()
stmt, err := c.Prepare("CREATE TABLE IF NOT EXISTS badparam (a, b, c);")
if err != nil {
t.Fatal(err)
}
if _, err := stmt.Step(); err != nil {
t.Fatal(err)
}
stmt, err = c.Prepare("INSERT INTO badparam (a, b, c) VALUES ($a, $b, $c);")
if err != nil {
t.Fatal(err)
}
stmt.SetText("$a", "col_a")
stmt.SetText("$b", "col_b")
stmt.SetText("$badparam", "notaval")
stmt.SetText("$c", "col_c")
_, err = stmt.Step()
if err == nil {
t.Fatal("expecting error from bad param name, got no error")
}
if got := err.Error(); !strings.Contains(got, "$badparam") {
t.Errorf(`error does not mention "$badparam": %v`, got)
}
stmt.Finalize()
}
func TestParallel(t *testing.T) {
c, err := sqlite.OpenConn(":memory:", 0)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := c.Close(); err != nil {
t.Error(err)
}
}()
stmt := c.Prep("CREATE TABLE testparallel (c);")
if _, err := stmt.Step(); err != nil {
t.Fatal(err)
}
stmt = c.Prep("INSERT INTO testparallel (c) VALUES ($c);")
stmt.SetText("$c", "text")
if _, err := stmt.Step(); err != nil {
t.Fatal(err)
}
stmt.Reset()
if _, err := stmt.Step(); err != nil {
t.Fatal(err)
}
stmt = c.Prep("SELECT * from testparallel;")
if _, err := stmt.Step(); err != nil {
t.Fatal(err)
}
stmt2 := c.Prep("SELECT count(*) from testparallel;")
if hasRow, err := stmt2.Step(); err != nil {
t.Fatal(err)
} else if !hasRow {
t.Error("expecting count row")
}
if hasRow, err := stmt.Step(); err != nil {
t.Fatal(err)
} else if !hasRow {
t.Error("expecting second row")
}
}
func TestBindBytes(t *testing.T) {
tests := []struct {
name string
val []byte
wantNull bool
}{
{
name: "Data with NUL bytes",
val: []byte("\x00\x00hello world\x00\x00\x00"),
},
{
name: "Empty non-nil slice",
val: []byte{},
},
{
name: "Nil slice stores NULL",
wantNull: true,
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
c, err := sqlite.OpenConn(":memory:", 0)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := c.Close(); err != nil {
t.Error(err)
}
}()
stmt := c.Prep("CREATE TABLE IF NOT EXISTS bindbytes (c);")
if _, err := stmt.Step(); err != nil {
t.Fatal(err)
}
stmt = c.Prep("INSERT INTO bindbytes (c) VALUES ($bytes);")
stmt.SetBytes("$bytes", test.val)
if _, err := stmt.Step(); err != nil {
t.Fatal(err)
}
if !test.wantNull {
stmt = c.Prep("SELECT count(*) FROM bindbytes WHERE c = $bytes;")
stmt.SetBytes("$bytes", test.val)
} else {
stmt = c.Prep("SELECT count(*) FROM bindbytes WHERE c IS NULL")
}
if hasRow, err := stmt.Step(); err != nil {
t.Fatal(err)
} else if !hasRow {
t.Error("SetBytes: result has no row")
}
if got := stmt.ColumnInt(0); got != 1 {
t.Errorf("SetBytes: count is %d, want 1", got)
}
stmt.Reset()
if test.wantNull {
// Skip blob test, won't work with a NULL value
return
}
blob, err := c.OpenBlob("", "bindbytes", "c", 1, false)
if err != nil {
t.Fatalf("SetBytes: OpenBlob: %v", err)
}
defer func() {
if err := blob.Close(); err != nil {
t.Error(err)
}
}()
wantEOF := (len(test.val) == 0)
storedVal := make([]byte, len(test.val)+8)
n, err := blob.Read(storedVal)
if err != nil && (!wantEOF || err != io.EOF) {
t.Fatalf("SetBytes: Read: %v", err)
}
if got := (err == io.EOF); got != wantEOF {
t.Fatalf("SetBytes: Read: got EOF? %t, want %t", got, wantEOF)
}
if !bytes.Equal(test.val, storedVal[:n]) {
t.Fatalf("SetBytes: want: %x, got: %x", test.val, storedVal)
}
})
}
}
func TestBindText(t *testing.T) {
c, err := sqlite.OpenConn(":memory:", 0)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := c.Close(); err != nil {
t.Error(err)
}
}()
const val = "column_value"
stmt := c.Prep("CREATE TABLE IF NOT EXISTS bindtext (c);")
if _, err := stmt.Step(); err != nil {
t.Fatal(err)
}
stmt = c.Prep("INSERT INTO bindtext (c) VALUES ($text);")
stmt.SetText("$text", val)
if _, err := stmt.Step(); err != nil {
t.Fatal(err)
}
stmt = c.Prep("SELECT count(*) FROM bindtext WHERE c = $text;")
stmt.SetText("$text", val)
if hasRow, err := stmt.Step(); err != nil {
t.Fatal(err)
} else if !hasRow {
t.Error("SetText: result has no row")
}
if got := stmt.ColumnInt(0); got != 1 {
t.Errorf("SetText: count is %d, want 1", got)
}
stmt.Reset()
stmt.SetText("$text", val)
if hasRow, err := stmt.Step(); err != nil {
t.Fatal(err)
} else if !hasRow {
t.Error("SetText: result has no row")
}
if got := stmt.ColumnInt(0); got != 1 {
t.Errorf("SetText: count is %d, want 1", got)
}
}
func TestExtendedCodes(t *testing.T) {
c, err := sqlite.OpenConn(":memory:", 0)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := c.Close(); err != nil {
t.Error(err)
}
}()
stmt := c.Prep("CREATE TABLE IF NOT EXISTS extcodes (c UNIQUE);")
if _, err := stmt.Step(); err != nil {
t.Fatal(err)
}
stmt = c.Prep("INSERT INTO extcodes (c) VALUES ($c);")
stmt.SetText("$c", "value1")
if _, err := stmt.Step(); err != nil {
t.Fatal(err)
}
stmt.Reset()
stmt.SetText("$c", "value1")
_, err = stmt.Step()
if err == nil {
t.Fatal("expected UNIQUE error, got nothing")
}
if got, want := sqlite.ErrCode(err), sqlite.SQLITE_CONSTRAINT_UNIQUE; got != want {
t.Errorf("got err=%s, want %s", got, want)
}
}
type errWithMessage struct {
err error
msg string
}
func (e errWithMessage) Cause() error {
return e.err
}
func (e errWithMessage) Error() string {
return e.msg + ": " + e.err.Error()
}
func TestWrappedErrors(t *testing.T) {
rawErr := sqlite.Error{
Code: sqlite.SQLITE_INTERRUPT,
Loc: "chao",
Query: "SELECT * FROM thieves",
}
if got, want := sqlite.ErrCode(rawErr), sqlite.SQLITE_INTERRUPT; got != want {
t.Errorf("got err=%s, want %s", got, want)
}
wrappedErr := errWithMessage{err: rawErr, msg: "Doing something"}
if got, want := sqlite.ErrCode(wrappedErr), sqlite.SQLITE_INTERRUPT; got != want {
t.Errorf("got err=%s, want %s", got, want)
}
}
func TestJournalMode(t *testing.T) {
dir, err := ioutil.TempDir("", "crawshaw.io")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dir)
tests := []struct {
db string
mode string
flags sqlite.OpenFlags
}{
{
"test-delete.db",
"delete",
sqlite.SQLITE_OPEN_READWRITE | sqlite.SQLITE_OPEN_CREATE,
},
{
"test-wal.db",
"wal",
sqlite.SQLITE_OPEN_READWRITE | sqlite.SQLITE_OPEN_CREATE | sqlite.SQLITE_OPEN_WAL,
},
{
"test-default-wal.db",
"wal",
0,
},
// memory databases can't have wal, only journal_mode=memory
{
":memory:",
"memory",
0,
},
// temp databases can't have wal, only journal_mode=delete
{
"",
"delete",
0,
},
}
for _, test := range tests {
if test.db != ":memory:" && test.db != "" {
test.db = filepath.Join(dir, test.db)
}
c, err := sqlite.OpenConn(test.db, test.flags)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := c.Close(); err != nil {
t.Error(err)
}
}()
stmt := c.Prep("PRAGMA journal_mode;")
if hasRow, err := stmt.Step(); err != nil {
t.Fatal(err)
} else if !hasRow {
t.Error("PRAGMA journal_mode: has no row")
}
if got := stmt.GetText("journal_mode"); got != test.mode {
t.Errorf("journal_mode not set properly, got: %s, want: %s", got, test.mode)
}
}
}
func TestBusyTimeout(t *testing.T) {
dir, err := ioutil.TempDir("", "crawshaw.io")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dir)
db := filepath.Join(dir, "busytest.db")
flags := sqlite.SQLITE_OPEN_READWRITE | sqlite.SQLITE_OPEN_CREATE | sqlite.SQLITE_OPEN_WAL
conn0, err := sqlite.OpenConn(db, flags)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := conn0.Close(); err != nil {
t.Error(err)
}
}()
conn1, err := sqlite.OpenConn(db, flags)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := conn1.Close(); err != nil {
t.Error(err)
}
}()
err = sqlitex.ExecScript(conn0, `
CREATE TABLE t (c);
INSERT INTO t (c) VALUES (1);
`)
if err != nil {
t.Fatal(err)
}
c0Lock := func() {
if _, err := conn0.Prep("BEGIN;").Step(); err != nil {
t.Fatal(err)
}
if _, err := conn0.Prep("INSERT INTO t (c) VALUES (2);").Step(); err != nil {
t.Fatal(err)
}
}
c0Unlock := func() {
if _, err := conn0.Prep("COMMIT;").Step(); err != nil {
t.Fatal(err)
}
}
c0Lock()
done := make(chan struct{})
go func() {
_, err = conn1.Prep("INSERT INTO t (c) VALUES (3);").Step()
if err != nil {
t.Errorf("insert failed: %v", err)
}
close(done)
}()
time.Sleep(10 * time.Millisecond)
select {
case <-done:
t.Errorf("done before unlock")
default:
}
c0Unlock()
<-done
c0Lock()
done = make(chan struct{})
go func() {
conn1.SetBusyTimeout(5 * time.Millisecond)
_, err = conn1.Prep("INSERT INTO t (c) VALUES (4);").Step()
if sqlite.ErrCode(err) != sqlite.SQLITE_BUSY {
t.Errorf("want SQLITE_BUSY got %v", err)
}
close(done)
}()
select {
case <-done:
case <-time.After(1 * time.Second):
t.Errorf("short busy timeout got stuck")
}
c0Unlock()
<-done
}
func TestColumnIndex(t *testing.T) {
c, err := sqlite.OpenConn(":memory:", 0)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := c.Close(); err != nil {
t.Error(err)
}
}()
stmt, err := c.Prepare("CREATE TABLE IF NOT EXISTS columnindex (a, b, c);")
if err != nil {
t.Fatal(err)
}
if _, err := stmt.Step(); err != nil {
t.Fatal(err)
}
stmt, err = c.Prepare("SELECT b, 1 AS d, a, c FROM columnindex")
if err != nil {
t.Fatal(err)
}
cols := []struct {
name string
idx int
}{
{"a", 2},
{"b", 0},
{"c", 3},
{"d", 1},
{"badcol", -1},
}
for _, col := range cols {
if got := stmt.ColumnIndex(col.name); got != col.idx {
t.Errorf("expected column %s to have index %d, got %d", col.name, col.idx, got)
}
}
stmt.Finalize()
}
func TestBindParamName(t *testing.T) {
c, err := sqlite.OpenConn(":memory:", 0)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := c.Close(); err != nil {
t.Error(err)
}
}()
stmt, err := c.Prepare("SELECT :foo, :bar;")
if err != nil {
t.Fatal(err)
}
defer stmt.Finalize()
var got []string
for i, n := 1, stmt.BindParamCount(); i <= n; i++ {
got = append(got, stmt.BindParamName(i))
}
// We don't care what indices SQLite picked, so sort returned names.
sort.Strings(got)
want := []string{":bar", ":foo"}
if len(got) != len(want) || got[0] != want[0] || got[1] != want[1] {
t.Errorf("names = %q; want %q", got, want)
}
}
func TestLimit(t *testing.T) {
c, err := sqlite.OpenConn(":memory:", 0)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := c.Close(); err != nil {
t.Error(err)
}
}()
c.Limit(sqlite.SQLITE_LIMIT_SQL_LENGTH, 1)
stmt, err := c.Prepare("SELECT 1;")
if err == nil {
stmt.Finalize()
t.Fatal("Prepare did not return an error")
}
if got, want := sqlite.ErrCode(err), sqlite.SQLITE_TOOBIG; got != want {
t.Errorf("sqlite.ErrCode(err) = %v; want %v", got, want)
}
}
func TestReturningClause(t *testing.T) {
// The RETURNING syntax has been supported by SQLite since version 3.35.0 (2021-03-12).
// https://www.sqlite.org/lang_returning.html
c, err := sqlite.OpenConn(":memory:", 0)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := c.Close(); err != nil {
t.Error(err)
}
}()
stmt := c.Prep(`
CREATE TABLE fruits (
id INTEGER PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL
)
`)
if _, err = stmt.Step(); err != nil {
t.Fatal(err)
}
_ = stmt.Finalize()
stmt = c.Prep(`
INSERT INTO fruits (name)
VALUES (:fruit)
RETURNING id
`)
stmt.SetText(":fruit", "bananananana")
if ok, err := stmt.Step(); err != nil {
t.Fatal(err)
} else if !ok {
t.Fatal("no fruit id returned")
}
if id := stmt.GetInt64("id"); id != 1 {
t.Fatalf("want returned fruit id to be 1, got %d", id)
}
}