Zero blobs, tests, documentation

tests/bradfitz/sql_test.go

@@ -0,0 +1,180 @@
+package bradfitz
+
+// Adapted from: https://github.com/bradfitz/go-sql-test
+
+import (
+	"database/sql"
+	"fmt"
+	"math/rand"
+	"path/filepath"
+	"sync"
+	"testing"
+
+	_ "github.com/ncruces/go-sqlite3/driver"
+	_ "github.com/ncruces/go-sqlite3/embed"
+)
+
+type Tester interface {
+	RunTest(*testing.T, func(params))
+}
+
+var (
+	sqlite Tester = sqliteDB{}
+)
+
+const TablePrefix = "gosqltest_"
+
+type sqliteDB struct{}
+
+type params struct {
+	dbType Tester
+	*testing.T
+	*sql.DB
+}
+
+func (t params) mustExec(sql string, args ...interface{}) sql.Result {
+	res, err := t.DB.Exec(sql, args...)
+	if err != nil {
+		t.Fatalf("Error running %q: %v", sql, err)
+	}
+	return res
+}
+
+func (sqliteDB) RunTest(t *testing.T, fn func(params)) {
+	db, err := sql.Open("sqlite3", filepath.Join(t.TempDir(), "foo.db"))
+	if err != nil {
+		t.Fatalf("foo.db open fail: %v", err)
+	}
+	fn(params{sqlite, t, db})
+	if err := db.Close(); err != nil {
+		t.Fatalf("foo.db close fail: %v", err)
+	}
+}
+
+func TestBlobs_SQLite(t *testing.T) { sqlite.RunTest(t, testBlobs) }
+
+func testBlobs(t params) {
+	var blob = []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
+	t.mustExec("create table " + TablePrefix + "foo (id integer primary key, bar blob)")
+	t.mustExec("insert into "+TablePrefix+"foo (id, bar) values(?,?)", 0, blob)
+
+	want := fmt.Sprintf("%x", blob)
+
+	b := make([]byte, 16)
+	err := t.QueryRow("select bar from "+TablePrefix+"foo where id = ?", 0).Scan(&b)
+	got := fmt.Sprintf("%x", b)
+	if err != nil {
+		t.Errorf("[]byte scan: %v", err)
+	} else if got != want {
+		t.Errorf("for []byte, got %q; want %q", got, want)
+	}
+
+	err = t.QueryRow("select bar from "+TablePrefix+"foo where id = ?", 0).Scan(&got)
+	want = string(blob)
+	if err != nil {
+		t.Errorf("string scan: %v", err)
+	} else if got != want {
+		t.Errorf("for string, got %q; want %q", got, want)
+	}
+}
+
+func TestManyQueryRow_SQLite(t *testing.T) { sqlite.RunTest(t, testManyQueryRow) }
+
+func testManyQueryRow(t params) {
+	if testing.Short() {
+		t.Skip("skipping in short mode")
+	}
+	t.mustExec("create table " + TablePrefix + "foo (id integer primary key, name varchar(50))")
+	t.mustExec("insert into "+TablePrefix+"foo (id, name) values(?,?)", 1, "bob")
+	var name string
+	for i := 0; i < 10000; i++ {
+		err := t.QueryRow("select name from "+TablePrefix+"foo where id = ?", 1).Scan(&name)
+		if err != nil || name != "bob" {
+			t.Fatalf("on query %d: err=%v, name=%q", i, err, name)
+		}
+	}
+}
+
+func TestTxQuery_SQLite(t *testing.T) { sqlite.RunTest(t, testTxQuery) }
+
+func testTxQuery(t params) {
+	tx, err := t.Begin()
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer tx.Rollback()
+
+	_, err = t.DB.Exec("create table " + TablePrefix + "foo (id integer primary key, name varchar(50))")
+	if err != nil {
+		t.Logf("cannot drop table "+TablePrefix+"foo: %s", err)
+	}
+
+	_, err = tx.Exec("insert into "+TablePrefix+"foo (id, name) values(?,?)", 1, "bob")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	r, err := tx.Query("select name from "+TablePrefix+"foo where id = ?", 1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer r.Close()
+
+	if !r.Next() {
+		if r.Err() != nil {
+			t.Fatal(err)
+		}
+		t.Fatal("expected one rows")
+	}
+
+	var name string
+	err = r.Scan(&name)
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestPreparedStmt_SQLite(t *testing.T) { sqlite.RunTest(t, testPreparedStmt) }
+
+func testPreparedStmt(t params) {
+	if testing.Short() {
+		t.Skip("skipping in short mode")
+	}
+
+	t.mustExec("CREATE TABLE " + TablePrefix + "t (count INT)")
+	sel, err := t.Prepare("SELECT count FROM " + TablePrefix + "t ORDER BY count DESC")
+	if err != nil {
+		t.Fatalf("prepare 1: %v", err)
+	}
+	ins, err := t.Prepare("INSERT INTO " + TablePrefix + "t (count) VALUES (?)")
+	if err != nil {
+		t.Fatalf("prepare 2: %v", err)
+	}
+
+	for n := 1; n <= 3; n++ {
+		if _, err := ins.Exec(n); err != nil {
+			t.Fatalf("insert(%d) = %v", n, err)
+		}
+	}
+
+	const nRuns = 10
+	var wg sync.WaitGroup
+	for i := 0; i < nRuns; i++ {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			for j := 0; j < 10; j++ {
+				count := 0
+				if err := sel.QueryRow().Scan(&count); err != nil && err != sql.ErrNoRows {
+					t.Errorf("Query: %v", err)
+					return
+				}
+				if _, err := ins.Exec(rand.Intn(100)); err != nil {
+					t.Errorf("Insert: %v", err)
+					return
+				}
+			}
+		}()
+	}
+	wg.Wait()
+}

tests/compile/empty/compile_test.go

@@ -1,4 +1,4 @@
-package compile_empty
+package compile
 
 import (
 	"testing"

tests/compile/missing/compile_test.go

@@ -1,4 +1,4 @@
-package compile_empty
+package compile
 
 import (
 	"testing"
@@ -6,7 +6,7 @@ import (
 	"github.com/ncruces/go-sqlite3"
 )
 
-func TestCompile_empty(t *testing.T) {
+func TestCompile_missing(t *testing.T) {
 	sqlite3.Path = "sqlite3.wasm"
 	_, err := sqlite3.Open(":memory:")
 	if err == nil {

tests/compile/nil/compile_test.go

@@ -1,4 +1,4 @@
-package compile_empty
+package compile
 
 import (
 	"testing"
@@ -6,7 +6,7 @@ import (
 	"github.com/ncruces/go-sqlite3"
 )
 
-func TestCompile_empty(t *testing.T) {
+func TestCompile_nil(t *testing.T) {
 	_, err := sqlite3.Open(":memory:")
 	if err == nil {
 		t.Error("want error")

tests/conn_test.go

@@ -0,0 +1,229 @@
+package tests
+
+import (
+	"context"
+	"errors"
+	"strings"
+	"testing"
+
+	"github.com/ncruces/go-sqlite3"
+	_ "github.com/ncruces/go-sqlite3/embed"
+)
+
+func TestConn_Open_dir(t *testing.T) {
+	t.Parallel()
+
+	_, err := sqlite3.Open(".")
+	if err == nil {
+		t.Fatal("want error")
+	}
+	var serr *sqlite3.Error
+	if !errors.As(err, &serr) {
+		t.Fatalf("got %T, want sqlite3.Error", err)
+	}
+	if rc := serr.Code(); rc != sqlite3.CANTOPEN {
+		t.Errorf("got %d, want sqlite3.CANTOPEN", rc)
+	}
+	if got := err.Error(); got != `sqlite3: unable to open database file` {
+		t.Error("got message: ", got)
+	}
+}
+
+func TestConn_Close(t *testing.T) {
+	var conn *sqlite3.Conn
+	conn.Close()
+}
+
+func TestConn_Close_BUSY(t *testing.T) {
+	t.Parallel()
+
+	db, err := sqlite3.Open(":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	stmt, _, err := db.Prepare(`BEGIN`)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer stmt.Close()
+
+	err = db.Close()
+	if err == nil {
+		t.Fatal("want error")
+	}
+	var serr *sqlite3.Error
+	if !errors.As(err, &serr) {
+		t.Fatalf("got %T, want sqlite3.Error", err)
+	}
+	if rc := serr.Code(); rc != sqlite3.BUSY {
+		t.Errorf("got %d, want sqlite3.BUSY", rc)
+	}
+	var terr interface{ Temporary() bool }
+	if !errors.As(err, &terr) || !terr.Temporary() {
+		t.Error("not temporary", err)
+	}
+	if got := err.Error(); got != `sqlite3: database is locked: unable to close due to unfinalized statements or unfinished backups` {
+		t.Error("got message: ", got)
+	}
+}
+
+func TestConn_SetInterrupt(t *testing.T) {
+	db, err := sqlite3.Open(":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	ctx, cancel := context.WithCancel(context.Background())
+	db.SetInterrupt(ctx.Done())
+
+	// Interrupt doesn't interrupt this.
+	err = db.Exec(`SELECT 1`)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	db.SetInterrupt(nil)
+
+	stmt, _, err := db.Prepare(`
+		WITH RECURSIVE
+		  fibonacci (curr, next)
+		AS (
+		  SELECT 0, 1
+		  UNION ALL
+		  SELECT next, curr + next FROM fibonacci
+		  LIMIT 1e6
+		)
+		SELECT min(curr) FROM fibonacci
+	`)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer stmt.Close()
+
+	cancel()
+	db.SetInterrupt(ctx.Done())
+
+	var serr *sqlite3.Error
+
+	// Interrupting works.
+	err = stmt.Exec()
+	if err != nil {
+		if !errors.As(err, &serr) {
+			t.Fatalf("got %T, want sqlite3.Error", err)
+		}
+		if rc := serr.Code(); rc != sqlite3.INTERRUPT {
+			t.Errorf("got %d, want sqlite3.INTERRUPT", rc)
+		}
+		if got := err.Error(); got != `sqlite3: interrupted` {
+			t.Error("got message: ", got)
+		}
+	}
+
+	// Interrupting sticks.
+	err = db.Exec(`SELECT 1`)
+	if err != nil {
+		if !errors.As(err, &serr) {
+			t.Fatalf("got %T, want sqlite3.Error", err)
+		}
+		if rc := serr.Code(); rc != sqlite3.INTERRUPT {
+			t.Errorf("got %d, want sqlite3.INTERRUPT", rc)
+		}
+		if got := err.Error(); got != `sqlite3: interrupted` {
+			t.Error("got message: ", got)
+		}
+	}
+
+	db.SetInterrupt(nil)
+
+	// Interrupting can be cleared.
+	err = db.Exec(`SELECT 1`)
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestConn_Prepare_empty(t *testing.T) {
+	t.Parallel()
+
+	db, err := sqlite3.Open(":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	stmt, _, err := db.Prepare(``)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer stmt.Close()
+
+	if stmt != nil {
+		t.Error("want nil")
+	}
+}
+
+func TestConn_Prepare_tail(t *testing.T) {
+	t.Parallel()
+
+	db, err := sqlite3.Open(":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	stmt, tail, err := db.Prepare(`SELECT 1; -- HERE`)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer stmt.Close()
+
+	if !strings.Contains(tail, "-- HERE") {
+		t.Errorf("got %q", tail)
+	}
+}
+
+func TestConn_Prepare_invalid(t *testing.T) {
+	t.Parallel()
+
+	db, err := sqlite3.Open(":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	var serr *sqlite3.Error
+
+	_, _, err = db.Prepare(`SELECT`)
+	if err == nil {
+		t.Fatal("want error")
+	}
+	if !errors.As(err, &serr) {
+		t.Fatalf("got %T, want sqlite3.Error", err)
+	}
+	if rc := serr.Code(); rc != sqlite3.ERROR {
+		t.Errorf("got %d, want sqlite3.ERROR", rc)
+	}
+	if got := err.Error(); got != `sqlite3: SQL logic error: incomplete input` {
+		t.Error("got message: ", got)
+	}
+
+	_, _, err = db.Prepare(`SELECT * FRM sqlite_schema`)
+	if err == nil {
+		t.Fatal("want error")
+	}
+	if !errors.As(err, &serr) {
+		t.Fatalf("got %T, want sqlite3.ERROR", err)
+	}
+	if rc := serr.Code(); rc != sqlite3.ERROR {
+		t.Errorf("got %d, want sqlite3.ERROR", rc)
+	}
+	if got := serr.SQL(); got != `FRM sqlite_schema` {
+		t.Error("got SQL: ", got)
+	}
+	if got := serr.Error(); got != `sqlite3: SQL logic error: near "FRM": syntax error` {
+		t.Error("got message: ", got)
+	}
+}

tests/db_test.go

@@ -17,6 +17,8 @@ func TestDB_file(t *testing.T) {
 }
 
 func testDB(t *testing.T, name string) {
+	t.Parallel()
+
 	db, err := sqlite3.Open(name)
 	if err != nil {
 		t.Fatal(err)

tests/dir_test.go

@@ -1,26 +0,0 @@
-package tests
-
-import (
-	"errors"
-	"testing"
-
-	"github.com/ncruces/go-sqlite3"
-	_ "github.com/ncruces/go-sqlite3/embed"
-)
-
-func TestDir(t *testing.T) {
-	_, err := sqlite3.Open(".")
-	if err == nil {
-		t.Fatal("want error")
-	}
-	var serr *sqlite3.Error
-	if !errors.As(err, &serr) {
-		t.Fatalf("got %T, want sqlite3.Error", err)
-	}
-	if rc := serr.Code(); rc != sqlite3.CANTOPEN {
-		t.Errorf("got %d, want sqlite3.CANTOPEN", rc)
-	}
-	if got := err.Error(); got != `sqlite3: unable to open database file` {
-		t.Error("got message: ", got)
-	}
-}

tests/driver_test.go

@@ -10,6 +10,8 @@ import (
 )
 
 func TestDriver(t *testing.T) {
+	t.Parallel()
+
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 

tests/parallel/parallel_test.go

@@ -22,7 +22,7 @@ func TestParallel(t *testing.T) {
 
 func TestMultiProcess(t *testing.T) {
 	if testing.Short() {
-		return
+		t.Skip()
 	}
 
 	name := filepath.Join(t.TempDir(), "test.db")
@@ -57,7 +57,7 @@ func TestMultiProcess(t *testing.T) {
 func TestChildProcess(t *testing.T) {
 	name := os.Getenv("TestMultiProcess_dbname")
 	if name == "" || testing.Short() {
-		return
+		t.SkipNow()
 	}
 
 	testParallel(t, name, 1000)

tests/stmt_test.go

@@ -0,0 +1,463 @@
+package tests
+
+import (
+	"math"
+	"testing"
+	"time"
+
+	"github.com/ncruces/go-sqlite3"
+)
+
+func TestStmt(t *testing.T) {
+	t.Parallel()
+
+	db, err := sqlite3.Open(":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	err = db.Exec(`CREATE TABLE IF NOT EXISTS test (col)`)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	stmt, _, err := db.Prepare(`INSERT INTO test(col) VALUES(?)`)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer stmt.Close()
+
+	if got := stmt.BindCount(); got != 1 {
+		t.Errorf("got %d, want 1", got)
+	}
+
+	if err := stmt.BindBool(1, false); err != nil {
+		t.Fatal(err)
+	}
+	if err := stmt.Exec(); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := stmt.BindBool(1, true); err != nil {
+		t.Fatal(err)
+	}
+	if err := stmt.Exec(); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := stmt.BindInt(1, 2); err != nil {
+		t.Fatal(err)
+	}
+	if err = stmt.Exec(); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := stmt.BindFloat(1, math.Pi); err != nil {
+		t.Fatal(err)
+	}
+	if err := stmt.Exec(); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := stmt.BindNull(1); err != nil {
+		t.Fatal(err)
+	}
+	if err := stmt.Exec(); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := stmt.BindText(1, ""); err != nil {
+		t.Fatal(err)
+	}
+	if err := stmt.Exec(); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := stmt.BindText(1, "text"); err != nil {
+		t.Fatal(err)
+	}
+	if err := stmt.Exec(); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := stmt.BindBlob(1, []byte("blob")); err != nil {
+		t.Fatal(err)
+	}
+	if err := stmt.Exec(); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := stmt.BindBlob(1, nil); err != nil {
+		t.Fatal(err)
+	}
+	if err := stmt.Exec(); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := stmt.BindZeroBlob(1, 4); err != nil {
+		t.Fatal(err)
+	}
+	if err := stmt.Exec(); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := stmt.ClearBindings(); err != nil {
+		t.Fatal(err)
+	}
+	if err := stmt.Exec(); err != nil {
+		t.Fatal(err)
+	}
+
+	err = stmt.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// The table should have: 0, 1, 2, π, NULL, "", "text", "blob", NULL, "\0\0\0\0", NULL
+	stmt, _, err = db.Prepare(`SELECT col FROM test`)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer stmt.Close()
+
+	if stmt.Step() {
+		if got := stmt.ColumnType(0); got != sqlite3.INTEGER {
+			t.Errorf("got %v, want INTEGER", got)
+		}
+		if got := stmt.ColumnBool(0); got != false {
+			t.Errorf("got %v, want false", got)
+		}
+		if got := stmt.ColumnInt(0); got != 0 {
+			t.Errorf("got %v, want zero", got)
+		}
+		if got := stmt.ColumnFloat(0); got != 0 {
+			t.Errorf("got %v, want zero", got)
+		}
+		if got := stmt.ColumnText(0); got != "0" {
+			t.Errorf("got %q, want zero", got)
+		}
+		if got := stmt.ColumnBlob(0, nil); string(got) != "0" {
+			t.Errorf("got %q, want zero", got)
+		}
+	}
+
+	if stmt.Step() {
+		if got := stmt.ColumnType(0); got != sqlite3.INTEGER {
+			t.Errorf("got %v, want INTEGER", got)
+		}
+		if got := stmt.ColumnBool(0); got != true {
+			t.Errorf("got %v, want true", got)
+		}
+		if got := stmt.ColumnInt(0); got != 1 {
+			t.Errorf("got %v, want one", got)
+		}
+		if got := stmt.ColumnFloat(0); got != 1 {
+			t.Errorf("got %v, want one", got)
+		}
+		if got := stmt.ColumnText(0); got != "1" {
+			t.Errorf("got %q, want one", got)
+		}
+		if got := stmt.ColumnBlob(0, nil); string(got) != "1" {
+			t.Errorf("got %q, want one", got)
+		}
+	}
+
+	if stmt.Step() {
+		if got := stmt.ColumnType(0); got != sqlite3.INTEGER {
+			t.Errorf("got %v, want INTEGER", got)
+		}
+		if got := stmt.ColumnBool(0); got != true {
+			t.Errorf("got %v, want true", got)
+		}
+		if got := stmt.ColumnInt(0); got != 2 {
+			t.Errorf("got %v, want two", got)
+		}
+		if got := stmt.ColumnFloat(0); got != 2 {
+			t.Errorf("got %v, want two", got)
+		}
+		if got := stmt.ColumnText(0); got != "2" {
+			t.Errorf("got %q, want two", got)
+		}
+		if got := stmt.ColumnBlob(0, nil); string(got) != "2" {
+			t.Errorf("got %q, want two", got)
+		}
+	}
+
+	if stmt.Step() {
+		if got := stmt.ColumnType(0); got != sqlite3.FLOAT {
+			t.Errorf("got %v, want FLOAT", got)
+		}
+		if got := stmt.ColumnBool(0); got != true {
+			t.Errorf("got %v, want true", got)
+		}
+		if got := stmt.ColumnInt(0); got != 3 {
+			t.Errorf("got %v, want three", got)
+		}
+		if got := stmt.ColumnFloat(0); got != math.Pi {
+			t.Errorf("got %v, want π", got)
+		}
+		if got := stmt.ColumnText(0); got != "3.14159265358979" {
+			t.Errorf("got %q, want π", got)
+		}
+		if got := stmt.ColumnBlob(0, nil); string(got) != "3.14159265358979" {
+			t.Errorf("got %q, want π", got)
+		}
+	}
+
+	if stmt.Step() {
+		if got := stmt.ColumnType(0); got != sqlite3.NULL {
+			t.Errorf("got %v, want NULL", got)
+		}
+		if got := stmt.ColumnBool(0); got != false {
+			t.Errorf("got %v, want false", got)
+		}
+		if got := stmt.ColumnInt(0); got != 0 {
+			t.Errorf("got %v, want zero", got)
+		}
+		if got := stmt.ColumnFloat(0); got != 0 {
+			t.Errorf("got %v, want zero", got)
+		}
+		if got := stmt.ColumnText(0); got != "" {
+			t.Errorf("got %q, want empty", got)
+		}
+		if got := stmt.ColumnBlob(0, nil); got != nil {
+			t.Errorf("got %q, want nil", got)
+		}
+	}
+
+	if stmt.Step() {
+		if got := stmt.ColumnType(0); got != sqlite3.TEXT {
+			t.Errorf("got %v, want TEXT", got)
+		}
+		if got := stmt.ColumnBool(0); got != false {
+			t.Errorf("got %v, want false", got)
+		}
+		if got := stmt.ColumnInt(0); got != 0 {
+			t.Errorf("got %v, want zero", got)
+		}
+		if got := stmt.ColumnFloat(0); got != 0 {
+			t.Errorf("got %v, want zero", got)
+		}
+		if got := stmt.ColumnText(0); got != "" {
+			t.Errorf("got %q, want empty", got)
+		}
+		if got := stmt.ColumnBlob(0, nil); got != nil {
+			t.Errorf("got %q, want nil", got)
+		}
+	}
+
+	if stmt.Step() {
+		if got := stmt.ColumnType(0); got != sqlite3.TEXT {
+			t.Errorf("got %v, want TEXT", got)
+		}
+		if got := stmt.ColumnBool(0); got != false {
+			t.Errorf("got %v, want false", got)
+		}
+		if got := stmt.ColumnInt(0); got != 0 {
+			t.Errorf("got %v, want zero", got)
+		}
+		if got := stmt.ColumnFloat(0); got != 0 {
+			t.Errorf("got %v, want zero", got)
+		}
+		if got := stmt.ColumnText(0); got != "text" {
+			t.Errorf(`got %q, want "text"`, got)
+		}
+		if got := stmt.ColumnBlob(0, nil); string(got) != "text" {
+			t.Errorf(`got %q, want "text"`, got)
+		}
+	}
+
+	if stmt.Step() {
+		if got := stmt.ColumnType(0); got != sqlite3.BLOB {
+			t.Errorf("got %v, want BLOB", got)
+		}
+		if got := stmt.ColumnBool(0); got != false {
+			t.Errorf("got %v, want false", got)
+		}
+		if got := stmt.ColumnInt(0); got != 0 {
+			t.Errorf("got %v, want zero", got)
+		}
+		if got := stmt.ColumnFloat(0); got != 0 {
+			t.Errorf("got %v, want zero", got)
+		}
+		if got := stmt.ColumnText(0); got != "blob" {
+			t.Errorf(`got %q, want "blob"`, got)
+		}
+		if got := stmt.ColumnBlob(0, nil); string(got) != "blob" {
+			t.Errorf(`got %q, want "blob"`, got)
+		}
+	}
+
+	if stmt.Step() {
+		if got := stmt.ColumnType(0); got != sqlite3.NULL {
+			t.Errorf("got %v, want NULL", got)
+		}
+		if got := stmt.ColumnBool(0); got != false {
+			t.Errorf("got %v, want false", got)
+		}
+		if got := stmt.ColumnInt(0); got != 0 {
+			t.Errorf("got %v, want zero", got)
+		}
+		if got := stmt.ColumnFloat(0); got != 0 {
+			t.Errorf("got %v, want zero", got)
+		}
+		if got := stmt.ColumnText(0); got != "" {
+			t.Errorf("got %q, want empty", got)
+		}
+		if got := stmt.ColumnBlob(0, nil); got != nil {
+			t.Errorf("got %q, want nil", got)
+		}
+	}
+
+	if stmt.Step() {
+		if got := stmt.ColumnType(0); got != sqlite3.BLOB {
+			t.Errorf("got %v, want BLOB", got)
+		}
+		if got := stmt.ColumnBool(0); got != false {
+			t.Errorf("got %v, want false", got)
+		}
+		if got := stmt.ColumnInt(0); got != 0 {
+			t.Errorf("got %v, want zero", got)
+		}
+		if got := stmt.ColumnFloat(0); got != 0 {
+			t.Errorf("got %v, want zero", got)
+		}
+		if got := stmt.ColumnText(0); got != "\x00\x00\x00\x00" {
+			t.Errorf(`got %q, want "\x00\x00\x00\x00"`, got)
+		}
+		if got := stmt.ColumnBlob(0, nil); string(got) != "\x00\x00\x00\x00" {
+			t.Errorf(`got %q, want "\x00\x00\x00\x00"`, got)
+		}
+	}
+
+	if stmt.Step() {
+		if got := stmt.ColumnType(0); got != sqlite3.NULL {
+			t.Errorf("got %v, want NULL", got)
+		}
+		if got := stmt.ColumnBool(0); got != false {
+			t.Errorf("got %v, want false", got)
+		}
+		if got := stmt.ColumnInt(0); got != 0 {
+			t.Errorf("got %v, want zero", got)
+		}
+		if got := stmt.ColumnFloat(0); got != 0 {
+			t.Errorf("got %v, want zero", got)
+		}
+		if got := stmt.ColumnText(0); got != "" {
+			t.Errorf("got %q, want empty", got)
+		}
+		if got := stmt.ColumnBlob(0, nil); got != nil {
+			t.Errorf("got %q, want nil", got)
+		}
+	}
+
+	if err := stmt.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := db.Close(); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestStmt_Close(t *testing.T) {
+	var stmt *sqlite3.Stmt
+	stmt.Close()
+}
+
+func TestStmt_BindName(t *testing.T) {
+	t.Parallel()
+
+	db, err := sqlite3.Open(":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	want := []string{"", "", "", "", "?5", ":AAA", "@AAA", "$AAA"}
+	stmt, _, err := db.Prepare(`SELECT ?, ?5, :AAA, @AAA, $AAA`)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer stmt.Close()
+
+	if got := stmt.BindCount(); got != len(want) {
+		t.Errorf("got %d, want %d", got, len(want))
+	}
+
+	for i, name := range want {
+		id := i + 1
+		if got := stmt.BindName(id); got != name {
+			t.Errorf("got %q, want %q", got, name)
+		}
+		if name == "" {
+			id = 0
+		}
+		if got := stmt.BindIndex(name); got != id {
+			t.Errorf("got %d, want %d", got, id)
+		}
+	}
+}
+
+func TestStmt_Time(t *testing.T) {
+	t.Parallel()
+
+	db, err := sqlite3.Open(":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	stmt, _, err := db.Prepare(`SELECT ?, ?, ?, datetime(), unixepoch(), julianday(), NULL, 'abc'`)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer stmt.Close()
+
+	reference := time.Date(2013, 10, 7, 4, 23, 19, 120_000_000, time.FixedZone("", -4*3600))
+	err = stmt.BindTime(1, reference, sqlite3.TimeFormat4)
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = stmt.BindTime(2, reference, sqlite3.TimeFormatUnixMilli)
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = stmt.BindTime(3, reference, sqlite3.TimeFormatJulianDay)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if now := time.Now(); stmt.Step() {
+		if got := stmt.ColumnTime(0, sqlite3.TimeFormatAuto); !reference.Equal(got) {
+			t.Errorf("got %v, want %v", got, reference)
+		}
+		if got := stmt.ColumnTime(1, sqlite3.TimeFormatAuto); !reference.Equal(got) {
+			t.Errorf("got %v, want %v", got, reference)
+		}
+		if got := stmt.ColumnTime(2, sqlite3.TimeFormatAuto); reference.Sub(got) > time.Millisecond {
+			t.Errorf("got %v, want %v", got, reference)
+		}
+
+		if got := stmt.ColumnTime(3, sqlite3.TimeFormatAuto); now.Sub(got) > time.Second {
+			t.Errorf("got %v, want %v", got, now)
+		}
+		if got := stmt.ColumnTime(4, sqlite3.TimeFormatAuto); now.Sub(got) > time.Second {
+			t.Errorf("got %v, want %v", got, now)
+		}
+		if got := stmt.ColumnTime(5, sqlite3.TimeFormatAuto); now.Sub(got) > time.Millisecond {
+			t.Errorf("got %v, want %v", got, now)
+		}
+
+		if got := stmt.ColumnTime(6, sqlite3.TimeFormatAuto); got != (time.Time{}) {
+			t.Errorf("got %v, want zero", got)
+		}
+		if got := stmt.ColumnTime(7, sqlite3.TimeFormatAuto); got != (time.Time{}) {
+			t.Errorf("got %v, want zero", got)
+		}
+		if stmt.Err() == nil {
+			t.Errorf("want error")
+		}
+	}
+}