migrate/database/redshift/redshift_test.go

401 lines
8.6 KiB
Go

package redshift
// error codes https://github.com/lib/pq/blob/master/error.go
import (
"bytes"
"context"
"database/sql"
sqldriver "database/sql/driver"
"fmt"
"log"
"github.com/golang-migrate/migrate/v4"
"io"
"strconv"
"strings"
"testing"
)
import (
"github.com/dhui/dktest"
)
import (
dt "github.com/golang-migrate/migrate/v4/database/testing"
"github.com/golang-migrate/migrate/v4/dktesting"
_ "github.com/golang-migrate/migrate/v4/source/file"
)
var (
opts = dktest.Options{PortRequired: true, ReadyFunc: isReady}
specs = []dktesting.ContainerSpec{
{ImageName: "postgres:8", Options: opts},
}
)
func redshiftConnectionString(host, port string) string {
return connectionString("redshift", host, port)
}
func pgConnectionString(host, port string) string {
return connectionString("postgres", host, port)
}
func connectionString(schema, host, port string) string {
return fmt.Sprintf("%s://postgres@%s:%s/postgres?sslmode=disable", schema, host, port)
}
func isReady(ctx context.Context, c dktest.ContainerInfo) bool {
ip, port, err := c.FirstPort()
if err != nil {
return false
}
db, err := sql.Open("postgres", pgConnectionString(ip, port))
if err != nil {
return false
}
defer func() {
if err := db.Close(); err != nil {
log.Println("close error:", err)
}
}()
if err = db.PingContext(ctx); err != nil {
switch err {
case sqldriver.ErrBadConn, io.EOF:
return false
default:
log.Println(err)
}
return false
}
return true
}
func Test(t *testing.T) {
dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
ip, port, err := c.FirstPort()
if err != nil {
t.Fatal(err)
}
addr := redshiftConnectionString(ip, port)
p := &Redshift{}
d, err := p.Open(addr)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := d.Close(); err != nil {
t.Error(err)
}
}()
dt.Test(t, d, []byte("SELECT 1"))
})
}
func TestMigrate(t *testing.T) {
dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
ip, port, err := c.FirstPort()
if err != nil {
t.Fatal(err)
}
addr := redshiftConnectionString(ip, port)
p := &Redshift{}
d, err := p.Open(addr)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := d.Close(); err != nil {
t.Error(err)
}
}()
m, err := migrate.NewWithDatabaseInstance("file://./examples/migrations", "postgres", d)
if err != nil {
t.Fatal(err)
}
dt.TestMigrate(t, m, []byte("SELECT 1"))
})
}
func TestMultiStatement(t *testing.T) {
dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
ip, port, err := c.FirstPort()
if err != nil {
t.Fatal(err)
}
addr := redshiftConnectionString(ip, port)
p := &Redshift{}
d, err := p.Open(addr)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := d.Close(); err != nil {
t.Error(err)
}
}()
if err := d.Run(bytes.NewReader([]byte("CREATE TABLE foo (foo text); CREATE TABLE bar (bar text);"))); err != nil {
t.Fatalf("expected err to be nil, got %v", err)
}
// make sure second table exists
var exists bool
if err := d.(*Redshift).conn.QueryRowContext(context.Background(), "SELECT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'bar' AND table_schema = (SELECT current_schema()))").Scan(&exists); err != nil {
t.Fatal(err)
}
if !exists {
t.Fatalf("expected table bar to exist")
}
})
}
func TestErrorParsing(t *testing.T) {
dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
ip, port, err := c.FirstPort()
if err != nil {
t.Fatal(err)
}
addr := redshiftConnectionString(ip, port)
p := &Redshift{}
d, err := p.Open(addr)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := d.Close(); err != nil {
t.Error(err)
}
}()
wantErr := `migration failed: syntax error at or near "TABLEE" (column 37) in line 1: CREATE TABLE foo ` +
`(foo text); CREATE TABLEE bar (bar text); (details: pq: syntax error at or near "TABLEE")`
if err := d.Run(bytes.NewReader([]byte("CREATE TABLE foo (foo text); CREATE TABLEE bar (bar text);"))); err == nil {
t.Fatal("expected err but got nil")
} else if err.Error() != wantErr {
t.Fatalf("expected '%s' but got '%s'", wantErr, err.Error())
}
})
}
func TestFilterCustomQuery(t *testing.T) {
dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
ip, port, err := c.FirstPort()
if err != nil {
t.Fatal(err)
}
addr := fmt.Sprintf("postgres://postgres@%v:%v/postgres?sslmode=disable&x-custom=foobar", ip, port)
p := &Redshift{}
d, err := p.Open(addr)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := d.Close(); err != nil {
t.Error(err)
}
}()
})
}
func TestWithSchema(t *testing.T) {
dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
ip, port, err := c.FirstPort()
if err != nil {
t.Fatal(err)
}
addr := redshiftConnectionString(ip, port)
p := &Redshift{}
d, err := p.Open(addr)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := d.Close(); err != nil {
t.Error(err)
}
}()
// create foobar schema
if err := d.Run(bytes.NewReader([]byte("CREATE SCHEMA foobar AUTHORIZATION postgres"))); err != nil {
t.Fatal(err)
}
if err := d.SetVersion(1, false); err != nil {
t.Fatal(err)
}
// re-connect using that schema
d2, err := p.Open(fmt.Sprintf("postgres://postgres@%v:%v/postgres?sslmode=disable&search_path=foobar", ip, port))
if err != nil {
t.Fatal(err)
}
defer func() {
if err := d2.Close(); err != nil {
t.Error(err)
}
}()
version, _, err := d2.Version()
if err != nil {
t.Fatal(err)
}
if version != -1 {
t.Fatal("expected NilVersion")
}
// now update version and compare
if err := d2.SetVersion(2, false); err != nil {
t.Fatal(err)
}
version, _, err = d2.Version()
if err != nil {
t.Fatal(err)
}
if version != 2 {
t.Fatal("expected version 2")
}
// meanwhile, the public schema still has the other version
version, _, err = d.Version()
if err != nil {
t.Fatal(err)
}
if version != 1 {
t.Fatal("expected version 2")
}
})
}
func TestWithInstance(t *testing.T) {
}
func TestRedshift_Lock(t *testing.T) {
dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
ip, port, err := c.FirstPort()
if err != nil {
t.Fatal(err)
}
addr := pgConnectionString(ip, port)
p := &Redshift{}
d, err := p.Open(addr)
if err != nil {
t.Fatal(err)
}
dt.Test(t, d, []byte("SELECT 1"))
ps := d.(*Redshift)
err = ps.Lock()
if err != nil {
t.Fatal(err)
}
err = ps.Unlock()
if err != nil {
t.Fatal(err)
}
err = ps.Lock()
if err != nil {
t.Fatal(err)
}
err = ps.Unlock()
if err != nil {
t.Fatal(err)
}
})
}
func Test_computeLineFromPos(t *testing.T) {
testcases := []struct {
pos int
wantLine uint
wantCol uint
input string
wantOk bool
}{
{
15, 2, 6, "SELECT *\nFROM foo", true, // foo table does not exists
},
{
16, 3, 6, "SELECT *\n\nFROM foo", true, // foo table does not exists, empty line
},
{
25, 3, 7, "SELECT *\nFROM foo\nWHERE x", true, // x column error
},
{
27, 5, 7, "SELECT *\n\nFROM foo\n\nWHERE x", true, // x column error, empty lines
},
{
10, 2, 1, "SELECT *\nFROMM foo", true, // FROMM typo
},
{
11, 3, 1, "SELECT *\n\nFROMM foo", true, // FROMM typo, empty line
},
{
17, 2, 8, "SELECT *\nFROM foo", true, // last character
},
{
18, 0, 0, "SELECT *\nFROM foo", false, // invalid position
},
}
for i, tc := range testcases {
t.Run("tc"+strconv.Itoa(i), func(t *testing.T) {
run := func(crlf bool, nonASCII bool) {
var name string
if crlf {
name = "crlf"
} else {
name = "lf"
}
if nonASCII {
name += "-nonascii"
} else {
name += "-ascii"
}
t.Run(name, func(t *testing.T) {
input := tc.input
if crlf {
input = strings.Replace(input, "\n", "\r\n", -1)
}
if nonASCII {
input = strings.Replace(input, "FROM", "FRÖM", -1)
}
gotLine, gotCol, gotOK := computeLineFromPos(input, tc.pos)
if tc.wantOk {
t.Logf("pos %d, want %d:%d, %#v", tc.pos, tc.wantLine, tc.wantCol, input)
}
if gotOK != tc.wantOk {
t.Fatalf("expected ok %v but got %v", tc.wantOk, gotOK)
}
if gotLine != tc.wantLine {
t.Fatalf("expected line %d but got %d", tc.wantLine, gotLine)
}
if gotCol != tc.wantCol {
t.Fatalf("expected col %d but got %d", tc.wantCol, gotCol)
}
})
}
run(false, false)
run(true, false)
run(false, true)
run(true, true)
})
}
}