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values_test.go
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values_test.go
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package pgx_test
import (
"bytes"
"context"
"net"
"os"
"reflect"
"strings"
"testing"
"time"
"github.com/jackc/pgx/v4"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestDateTranscode(t *testing.T) {
t.Parallel()
testWithAndWithoutPreferSimpleProtocol(t, func(t *testing.T, conn *pgx.Conn) {
dates := []time.Time{
time.Date(1, 1, 1, 0, 0, 0, 0, time.UTC),
time.Date(1000, 1, 1, 0, 0, 0, 0, time.UTC),
time.Date(1600, 1, 1, 0, 0, 0, 0, time.UTC),
time.Date(1700, 1, 1, 0, 0, 0, 0, time.UTC),
time.Date(1800, 1, 1, 0, 0, 0, 0, time.UTC),
time.Date(1900, 1, 1, 0, 0, 0, 0, time.UTC),
time.Date(1990, 1, 1, 0, 0, 0, 0, time.UTC),
time.Date(1999, 12, 31, 0, 0, 0, 0, time.UTC),
time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC),
time.Date(2001, 1, 2, 0, 0, 0, 0, time.UTC),
time.Date(2004, 2, 29, 0, 0, 0, 0, time.UTC),
time.Date(2013, 7, 4, 0, 0, 0, 0, time.UTC),
time.Date(2013, 12, 25, 0, 0, 0, 0, time.UTC),
time.Date(2029, 1, 1, 0, 0, 0, 0, time.UTC),
time.Date(2081, 1, 1, 0, 0, 0, 0, time.UTC),
time.Date(2096, 2, 29, 0, 0, 0, 0, time.UTC),
time.Date(2550, 1, 1, 0, 0, 0, 0, time.UTC),
time.Date(9999, 12, 31, 0, 0, 0, 0, time.UTC),
}
for _, actualDate := range dates {
var d time.Time
err := conn.QueryRow(context.Background(), "select $1::date", actualDate).Scan(&d)
if err != nil {
t.Fatalf("Unexpected failure on QueryRow Scan: %v", err)
}
if !actualDate.Equal(d) {
t.Errorf("Did not transcode date successfully: %v is not %v", d, actualDate)
}
}
})
}
func TestTimestampTzTranscode(t *testing.T) {
t.Parallel()
testWithAndWithoutPreferSimpleProtocol(t, func(t *testing.T, conn *pgx.Conn) {
inputTime := time.Date(2013, 1, 2, 3, 4, 5, 6000, time.Local)
var outputTime time.Time
err := conn.QueryRow(context.Background(), "select $1::timestamptz", inputTime).Scan(&outputTime)
if err != nil {
t.Fatalf("QueryRow Scan failed: %v", err)
}
if !inputTime.Equal(outputTime) {
t.Errorf("Did not transcode time successfully: %v is not %v", outputTime, inputTime)
}
})
}
// TODO - move these tests to pgtype
func TestJSONAndJSONBTranscode(t *testing.T) {
t.Parallel()
testWithAndWithoutPreferSimpleProtocol(t, func(t *testing.T, conn *pgx.Conn) {
for _, typename := range []string{"json", "jsonb"} {
if _, ok := conn.ConnInfo().DataTypeForName(typename); !ok {
continue // No JSON/JSONB type -- must be running against old PostgreSQL
}
testJSONString(t, conn, typename)
testJSONStringPointer(t, conn, typename)
}
})
}
func TestJSONAndJSONBTranscodeExtendedOnly(t *testing.T) {
t.Parallel()
conn := mustConnectString(t, os.Getenv("PGX_TEST_DATABASE"))
defer closeConn(t, conn)
for _, typename := range []string{"json", "jsonb"} {
if _, ok := conn.ConnInfo().DataTypeForName(typename); !ok {
continue // No JSON/JSONB type -- must be running against old PostgreSQL
}
testJSONSingleLevelStringMap(t, conn, typename)
testJSONNestedMap(t, conn, typename)
testJSONStringArray(t, conn, typename)
testJSONInt64Array(t, conn, typename)
testJSONInt16ArrayFailureDueToOverflow(t, conn, typename)
testJSONStruct(t, conn, typename)
}
}
func testJSONString(t *testing.T, conn *pgx.Conn, typename string) {
input := `{"key": "value"}`
expectedOutput := map[string]string{"key": "value"}
var output map[string]string
err := conn.QueryRow(context.Background(), "select $1::"+typename, input).Scan(&output)
if err != nil {
t.Errorf("%s: QueryRow Scan failed: %v", typename, err)
return
}
if !reflect.DeepEqual(expectedOutput, output) {
t.Errorf("%s: Did not transcode map[string]string successfully: %v is not %v", typename, expectedOutput, output)
return
}
}
func testJSONStringPointer(t *testing.T, conn *pgx.Conn, typename string) {
input := `{"key": "value"}`
expectedOutput := map[string]string{"key": "value"}
var output map[string]string
err := conn.QueryRow(context.Background(), "select $1::"+typename, &input).Scan(&output)
if err != nil {
t.Errorf("%s: QueryRow Scan failed: %v", typename, err)
return
}
if !reflect.DeepEqual(expectedOutput, output) {
t.Errorf("%s: Did not transcode map[string]string successfully: %v is not %v", typename, expectedOutput, output)
return
}
}
func testJSONSingleLevelStringMap(t *testing.T, conn *pgx.Conn, typename string) {
input := map[string]string{"key": "value"}
var output map[string]string
err := conn.QueryRow(context.Background(), "select $1::"+typename, input).Scan(&output)
if err != nil {
t.Errorf("%s: QueryRow Scan failed: %v", typename, err)
return
}
if !reflect.DeepEqual(input, output) {
t.Errorf("%s: Did not transcode map[string]string successfully: %v is not %v", typename, input, output)
return
}
}
func testJSONNestedMap(t *testing.T, conn *pgx.Conn, typename string) {
input := map[string]interface{}{
"name": "Uncanny",
"stats": map[string]interface{}{"hp": float64(107), "maxhp": float64(150)},
"inventory": []interface{}{"phone", "key"},
}
var output map[string]interface{}
err := conn.QueryRow(context.Background(), "select $1::"+typename, input).Scan(&output)
if err != nil {
t.Errorf("%s: QueryRow Scan failed: %v", typename, err)
return
}
if !reflect.DeepEqual(input, output) {
t.Errorf("%s: Did not transcode map[string]interface{} successfully: %v is not %v", typename, input, output)
return
}
}
func testJSONStringArray(t *testing.T, conn *pgx.Conn, typename string) {
input := []string{"foo", "bar", "baz"}
var output []string
err := conn.QueryRow(context.Background(), "select $1::"+typename, input).Scan(&output)
if err != nil {
t.Errorf("%s: QueryRow Scan failed: %v", typename, err)
}
if !reflect.DeepEqual(input, output) {
t.Errorf("%s: Did not transcode []string successfully: %v is not %v", typename, input, output)
}
}
func testJSONInt64Array(t *testing.T, conn *pgx.Conn, typename string) {
input := []int64{1, 2, 234432}
var output []int64
err := conn.QueryRow(context.Background(), "select $1::"+typename, input).Scan(&output)
if err != nil {
t.Errorf("%s: QueryRow Scan failed: %v", typename, err)
}
if !reflect.DeepEqual(input, output) {
t.Errorf("%s: Did not transcode []int64 successfully: %v is not %v", typename, input, output)
}
}
func testJSONInt16ArrayFailureDueToOverflow(t *testing.T, conn *pgx.Conn, typename string) {
input := []int{1, 2, 234432}
var output []int16
err := conn.QueryRow(context.Background(), "select $1::"+typename, input).Scan(&output)
if err == nil || err.Error() != "can't scan into dest[0]: json: cannot unmarshal number 234432 into Go value of type int16" {
t.Errorf("%s: Expected *json.UnmarkalTypeError, but got %v", typename, err)
}
}
func testJSONStruct(t *testing.T, conn *pgx.Conn, typename string) {
type person struct {
Name string `json:"name"`
Age int `json:"age"`
}
input := person{
Name: "John",
Age: 42,
}
var output person
err := conn.QueryRow(context.Background(), "select $1::"+typename, input).Scan(&output)
if err != nil {
t.Errorf("%s: QueryRow Scan failed: %v", typename, err)
}
if !reflect.DeepEqual(input, output) {
t.Errorf("%s: Did not transcode struct successfully: %v is not %v", typename, input, output)
}
}
func mustParseCIDR(t *testing.T, s string) *net.IPNet {
_, ipnet, err := net.ParseCIDR(s)
if err != nil {
t.Fatal(err)
}
return ipnet
}
func TestStringToNotTextTypeTranscode(t *testing.T) {
t.Parallel()
testWithAndWithoutPreferSimpleProtocol(t, func(t *testing.T, conn *pgx.Conn) {
input := "01086ee0-4963-4e35-9116-30c173a8d0bd"
var output string
err := conn.QueryRow(context.Background(), "select $1::uuid", input).Scan(&output)
if err != nil {
t.Fatal(err)
}
if input != output {
t.Errorf("uuid: Did not transcode string successfully: %s is not %s", input, output)
}
err = conn.QueryRow(context.Background(), "select $1::uuid", &input).Scan(&output)
if err != nil {
t.Fatal(err)
}
if input != output {
t.Errorf("uuid: Did not transcode pointer to string successfully: %s is not %s", input, output)
}
})
}
func TestInetCIDRTranscodeIPNet(t *testing.T) {
t.Parallel()
testWithAndWithoutPreferSimpleProtocol(t, func(t *testing.T, conn *pgx.Conn) {
tests := []struct {
sql string
value *net.IPNet
}{
{"select $1::inet", mustParseCIDR(t, "0.0.0.0/32")},
{"select $1::inet", mustParseCIDR(t, "127.0.0.1/32")},
{"select $1::inet", mustParseCIDR(t, "12.34.56.0/32")},
{"select $1::inet", mustParseCIDR(t, "192.168.1.0/24")},
{"select $1::inet", mustParseCIDR(t, "255.0.0.0/8")},
{"select $1::inet", mustParseCIDR(t, "255.255.255.255/32")},
{"select $1::inet", mustParseCIDR(t, "::/128")},
{"select $1::inet", mustParseCIDR(t, "::/0")},
{"select $1::inet", mustParseCIDR(t, "::1/128")},
{"select $1::inet", mustParseCIDR(t, "2607:f8b0:4009:80b::200e/128")},
{"select $1::cidr", mustParseCIDR(t, "0.0.0.0/32")},
{"select $1::cidr", mustParseCIDR(t, "127.0.0.1/32")},
{"select $1::cidr", mustParseCIDR(t, "12.34.56.0/32")},
{"select $1::cidr", mustParseCIDR(t, "192.168.1.0/24")},
{"select $1::cidr", mustParseCIDR(t, "255.0.0.0/8")},
{"select $1::cidr", mustParseCIDR(t, "255.255.255.255/32")},
{"select $1::cidr", mustParseCIDR(t, "::/128")},
{"select $1::cidr", mustParseCIDR(t, "::/0")},
{"select $1::cidr", mustParseCIDR(t, "::1/128")},
{"select $1::cidr", mustParseCIDR(t, "2607:f8b0:4009:80b::200e/128")},
}
for i, tt := range tests {
if conn.PgConn().ParameterStatus("crdb_version") != "" && strings.Contains(tt.sql, "cidr") {
t.Log("Server does not support cidr type (https://github.com/cockroachdb/cockroach/issues/18846)")
continue
}
var actual net.IPNet
err := conn.QueryRow(context.Background(), tt.sql, tt.value).Scan(&actual)
if err != nil {
t.Errorf("%d. Unexpected failure: %v (sql -> %v, value -> %v)", i, err, tt.sql, tt.value)
continue
}
if actual.String() != tt.value.String() {
t.Errorf("%d. Expected %v, got %v (sql -> %v)", i, tt.value, actual, tt.sql)
}
}
})
}
func TestInetCIDRTranscodeIP(t *testing.T) {
t.Parallel()
testWithAndWithoutPreferSimpleProtocol(t, func(t *testing.T, conn *pgx.Conn) {
tests := []struct {
sql string
value net.IP
}{
{"select $1::inet", net.ParseIP("0.0.0.0")},
{"select $1::inet", net.ParseIP("127.0.0.1")},
{"select $1::inet", net.ParseIP("12.34.56.0")},
{"select $1::inet", net.ParseIP("255.255.255.255")},
{"select $1::inet", net.ParseIP("::1")},
{"select $1::inet", net.ParseIP("2607:f8b0:4009:80b::200e")},
{"select $1::cidr", net.ParseIP("0.0.0.0")},
{"select $1::cidr", net.ParseIP("127.0.0.1")},
{"select $1::cidr", net.ParseIP("12.34.56.0")},
{"select $1::cidr", net.ParseIP("255.255.255.255")},
{"select $1::cidr", net.ParseIP("::1")},
{"select $1::cidr", net.ParseIP("2607:f8b0:4009:80b::200e")},
}
for i, tt := range tests {
if conn.PgConn().ParameterStatus("crdb_version") != "" && strings.Contains(tt.sql, "cidr") {
t.Log("Server does not support cidr type (https://github.com/cockroachdb/cockroach/issues/18846)")
continue
}
var actual net.IP
err := conn.QueryRow(context.Background(), tt.sql, tt.value).Scan(&actual)
if err != nil {
t.Errorf("%d. Unexpected failure: %v (sql -> %v, value -> %v)", i, err, tt.sql, tt.value)
continue
}
if !actual.Equal(tt.value) {
t.Errorf("%d. Expected %v, got %v (sql -> %v)", i, tt.value, actual, tt.sql)
}
ensureConnValid(t, conn)
}
failTests := []struct {
sql string
value *net.IPNet
}{
{"select $1::inet", mustParseCIDR(t, "192.168.1.0/24")},
{"select $1::cidr", mustParseCIDR(t, "192.168.1.0/24")},
}
for i, tt := range failTests {
var actual net.IP
err := conn.QueryRow(context.Background(), tt.sql, tt.value).Scan(&actual)
if err == nil {
t.Errorf("%d. Expected failure but got none", i)
continue
}
ensureConnValid(t, conn)
}
})
}
func TestInetCIDRArrayTranscodeIPNet(t *testing.T) {
t.Parallel()
testWithAndWithoutPreferSimpleProtocol(t, func(t *testing.T, conn *pgx.Conn) {
tests := []struct {
sql string
value []*net.IPNet
}{
{
"select $1::inet[]",
[]*net.IPNet{
mustParseCIDR(t, "0.0.0.0/32"),
mustParseCIDR(t, "127.0.0.1/32"),
mustParseCIDR(t, "12.34.56.0/32"),
mustParseCIDR(t, "192.168.1.0/24"),
mustParseCIDR(t, "255.0.0.0/8"),
mustParseCIDR(t, "255.255.255.255/32"),
mustParseCIDR(t, "::/128"),
mustParseCIDR(t, "::/0"),
mustParseCIDR(t, "::1/128"),
mustParseCIDR(t, "2607:f8b0:4009:80b::200e/128"),
},
},
{
"select $1::cidr[]",
[]*net.IPNet{
mustParseCIDR(t, "0.0.0.0/32"),
mustParseCIDR(t, "127.0.0.1/32"),
mustParseCIDR(t, "12.34.56.0/32"),
mustParseCIDR(t, "192.168.1.0/24"),
mustParseCIDR(t, "255.0.0.0/8"),
mustParseCIDR(t, "255.255.255.255/32"),
mustParseCIDR(t, "::/128"),
mustParseCIDR(t, "::/0"),
mustParseCIDR(t, "::1/128"),
mustParseCIDR(t, "2607:f8b0:4009:80b::200e/128"),
},
},
}
for i, tt := range tests {
if conn.PgConn().ParameterStatus("crdb_version") != "" && strings.Contains(tt.sql, "cidr") {
t.Log("Server does not support cidr type (https://github.com/cockroachdb/cockroach/issues/18846)")
continue
}
var actual []*net.IPNet
err := conn.QueryRow(context.Background(), tt.sql, tt.value).Scan(&actual)
if err != nil {
t.Errorf("%d. Unexpected failure: %v (sql -> %v, value -> %v)", i, err, tt.sql, tt.value)
continue
}
if !reflect.DeepEqual(actual, tt.value) {
t.Errorf("%d. Expected %v, got %v (sql -> %v)", i, tt.value, actual, tt.sql)
}
ensureConnValid(t, conn)
}
})
}
func TestInetCIDRArrayTranscodeIP(t *testing.T) {
t.Parallel()
testWithAndWithoutPreferSimpleProtocol(t, func(t *testing.T, conn *pgx.Conn) {
tests := []struct {
sql string
value []net.IP
}{
{
"select $1::inet[]",
[]net.IP{
net.ParseIP("0.0.0.0"),
net.ParseIP("127.0.0.1"),
net.ParseIP("12.34.56.0"),
net.ParseIP("255.255.255.255"),
net.ParseIP("2607:f8b0:4009:80b::200e"),
},
},
{
"select $1::cidr[]",
[]net.IP{
net.ParseIP("0.0.0.0"),
net.ParseIP("127.0.0.1"),
net.ParseIP("12.34.56.0"),
net.ParseIP("255.255.255.255"),
net.ParseIP("2607:f8b0:4009:80b::200e"),
},
},
}
for i, tt := range tests {
if conn.PgConn().ParameterStatus("crdb_version") != "" && strings.Contains(tt.sql, "cidr") {
t.Log("Server does not support cidr type (https://github.com/cockroachdb/cockroach/issues/18846)")
continue
}
var actual []net.IP
err := conn.QueryRow(context.Background(), tt.sql, tt.value).Scan(&actual)
if err != nil {
t.Errorf("%d. Unexpected failure: %v (sql -> %v, value -> %v)", i, err, tt.sql, tt.value)
continue
}
assert.Equal(t, len(tt.value), len(actual), "%d", i)
for j := range actual {
assert.True(t, actual[j].Equal(tt.value[j]), "%d", i)
}
ensureConnValid(t, conn)
}
failTests := []struct {
sql string
value []*net.IPNet
}{
{
"select $1::inet[]",
[]*net.IPNet{
mustParseCIDR(t, "12.34.56.0/32"),
mustParseCIDR(t, "192.168.1.0/24"),
},
},
{
"select $1::cidr[]",
[]*net.IPNet{
mustParseCIDR(t, "12.34.56.0/32"),
mustParseCIDR(t, "192.168.1.0/24"),
},
},
}
for i, tt := range failTests {
var actual []net.IP
err := conn.QueryRow(context.Background(), tt.sql, tt.value).Scan(&actual)
if err == nil {
t.Errorf("%d. Expected failure but got none", i)
continue
}
ensureConnValid(t, conn)
}
})
}
func TestInetCIDRTranscodeWithJustIP(t *testing.T) {
t.Parallel()
testWithAndWithoutPreferSimpleProtocol(t, func(t *testing.T, conn *pgx.Conn) {
tests := []struct {
sql string
value string
}{
{"select $1::inet", "0.0.0.0/32"},
{"select $1::inet", "127.0.0.1/32"},
{"select $1::inet", "12.34.56.0/32"},
{"select $1::inet", "255.255.255.255/32"},
{"select $1::inet", "::/128"},
{"select $1::inet", "2607:f8b0:4009:80b::200e/128"},
{"select $1::cidr", "0.0.0.0/32"},
{"select $1::cidr", "127.0.0.1/32"},
{"select $1::cidr", "12.34.56.0/32"},
{"select $1::cidr", "255.255.255.255/32"},
{"select $1::cidr", "::/128"},
{"select $1::cidr", "2607:f8b0:4009:80b::200e/128"},
}
for i, tt := range tests {
if conn.PgConn().ParameterStatus("crdb_version") != "" && strings.Contains(tt.sql, "cidr") {
t.Log("Server does not support cidr type (https://github.com/cockroachdb/cockroach/issues/18846)")
continue
}
expected := mustParseCIDR(t, tt.value)
var actual net.IPNet
err := conn.QueryRow(context.Background(), tt.sql, expected.IP).Scan(&actual)
if err != nil {
t.Errorf("%d. Unexpected failure: %v (sql -> %v, value -> %v)", i, err, tt.sql, tt.value)
continue
}
if actual.String() != expected.String() {
t.Errorf("%d. Expected %v, got %v (sql -> %v)", i, tt.value, actual, tt.sql)
}
ensureConnValid(t, conn)
}
})
}
func TestArrayDecoding(t *testing.T) {
t.Parallel()
testWithAndWithoutPreferSimpleProtocol(t, func(t *testing.T, conn *pgx.Conn) {
tests := []struct {
sql string
query interface{}
scan interface{}
assert func(*testing.T, interface{}, interface{})
}{
{
"select $1::bool[]", []bool{true, false, true}, &[]bool{},
func(t *testing.T, query, scan interface{}) {
if !reflect.DeepEqual(query, *(scan.(*[]bool))) {
t.Errorf("failed to encode bool[]")
}
},
},
{
"select $1::smallint[]", []int16{2, 4, 484, 32767}, &[]int16{},
func(t *testing.T, query, scan interface{}) {
if !reflect.DeepEqual(query, *(scan.(*[]int16))) {
t.Errorf("failed to encode smallint[]")
}
},
},
{
"select $1::smallint[]", []uint16{2, 4, 484, 32767}, &[]uint16{},
func(t *testing.T, query, scan interface{}) {
if !reflect.DeepEqual(query, *(scan.(*[]uint16))) {
t.Errorf("failed to encode smallint[]")
}
},
},
{
"select $1::int[]", []int32{2, 4, 484}, &[]int32{},
func(t *testing.T, query, scan interface{}) {
if !reflect.DeepEqual(query, *(scan.(*[]int32))) {
t.Errorf("failed to encode int[]")
}
},
},
{
"select $1::int[]", []uint32{2, 4, 484, 2147483647}, &[]uint32{},
func(t *testing.T, query, scan interface{}) {
if !reflect.DeepEqual(query, *(scan.(*[]uint32))) {
t.Errorf("failed to encode int[]")
}
},
},
{
"select $1::bigint[]", []int64{2, 4, 484, 9223372036854775807}, &[]int64{},
func(t *testing.T, query, scan interface{}) {
if !reflect.DeepEqual(query, *(scan.(*[]int64))) {
t.Errorf("failed to encode bigint[]")
}
},
},
{
"select $1::bigint[]", []uint64{2, 4, 484, 9223372036854775807}, &[]uint64{},
func(t *testing.T, query, scan interface{}) {
if !reflect.DeepEqual(query, *(scan.(*[]uint64))) {
t.Errorf("failed to encode bigint[]")
}
},
},
{
"select $1::text[]", []string{"it's", "over", "9000!"}, &[]string{},
func(t *testing.T, query, scan interface{}) {
if !reflect.DeepEqual(query, *(scan.(*[]string))) {
t.Errorf("failed to encode text[]")
}
},
},
{
"select $1::timestamptz[]", []time.Time{time.Unix(323232, 0), time.Unix(3239949334, 00)}, &[]time.Time{},
func(t *testing.T, query, scan interface{}) {
queryTimeSlice := query.([]time.Time)
scanTimeSlice := *(scan.(*[]time.Time))
require.Equal(t, len(queryTimeSlice), len(scanTimeSlice))
for i := range queryTimeSlice {
assert.Truef(t, queryTimeSlice[i].Equal(scanTimeSlice[i]), "%d", i)
}
},
},
{
"select $1::bytea[]", [][]byte{{0, 1, 2, 3}, {4, 5, 6, 7}}, &[][]byte{},
func(t *testing.T, query, scan interface{}) {
queryBytesSliceSlice := query.([][]byte)
scanBytesSliceSlice := *(scan.(*[][]byte))
if len(queryBytesSliceSlice) != len(scanBytesSliceSlice) {
t.Errorf("failed to encode byte[][] to bytea[]: expected %d to equal %d", len(queryBytesSliceSlice), len(scanBytesSliceSlice))
}
for i := range queryBytesSliceSlice {
qb := queryBytesSliceSlice[i]
sb := scanBytesSliceSlice[i]
if !bytes.Equal(qb, sb) {
t.Errorf("failed to encode byte[][] to bytea[]: expected %v to equal %v", qb, sb)
}
}
},
},
}
for i, tt := range tests {
err := conn.QueryRow(context.Background(), tt.sql, tt.query).Scan(tt.scan)
if err != nil {
t.Errorf(`%d. error reading array: %v`, i, err)
continue
}
tt.assert(t, tt.query, tt.scan)
ensureConnValid(t, conn)
}
})
}
func TestEmptyArrayDecoding(t *testing.T) {
t.Parallel()
testWithAndWithoutPreferSimpleProtocol(t, func(t *testing.T, conn *pgx.Conn) {
var val []string
err := conn.QueryRow(context.Background(), "select array[]::text[]").Scan(&val)
if err != nil {
t.Errorf(`error reading array: %v`, err)
}
if len(val) != 0 {
t.Errorf("Expected 0 values, got %d", len(val))
}
var n, m int32
err = conn.QueryRow(context.Background(), "select 1::integer, array[]::text[], 42::integer").Scan(&n, &val, &m)
if err != nil {
t.Errorf(`error reading array: %v`, err)
}
if len(val) != 0 {
t.Errorf("Expected 0 values, got %d", len(val))
}
if n != 1 {
t.Errorf("Expected n to be 1, but it was %d", n)
}
if m != 42 {
t.Errorf("Expected n to be 42, but it was %d", n)
}
rows, err := conn.Query(context.Background(), "select 1::integer, array['test']::text[] union select 2::integer, array[]::text[] union select 3::integer, array['test']::text[]")
if err != nil {
t.Errorf(`error retrieving rows with array: %v`, err)
}
defer rows.Close()
for rows.Next() {
err = rows.Scan(&n, &val)
if err != nil {
t.Errorf(`error reading array: %v`, err)
}
}
})
}
func TestPointerPointer(t *testing.T) {
t.Parallel()
testWithAndWithoutPreferSimpleProtocol(t, func(t *testing.T, conn *pgx.Conn) {
skipCockroachDB(t, conn, "Server auto converts ints to bigint and test relies on exact types")
type allTypes struct {
s *string
i16 *int16
i32 *int32
i64 *int64
f32 *float32
f64 *float64
b *bool
t *time.Time
}
var actual, zero, expected allTypes
{
s := "foo"
expected.s = &s
i16 := int16(1)
expected.i16 = &i16
i32 := int32(1)
expected.i32 = &i32
i64 := int64(1)
expected.i64 = &i64
f32 := float32(1.23)
expected.f32 = &f32
f64 := float64(1.23)
expected.f64 = &f64
b := true
expected.b = &b
t := time.Unix(123, 5000)
expected.t = &t
}
tests := []struct {
sql string
queryArgs []interface{}
scanArgs []interface{}
expected allTypes
}{
{"select $1::text", []interface{}{expected.s}, []interface{}{&actual.s}, allTypes{s: expected.s}},
{"select $1::text", []interface{}{zero.s}, []interface{}{&actual.s}, allTypes{}},
{"select $1::int2", []interface{}{expected.i16}, []interface{}{&actual.i16}, allTypes{i16: expected.i16}},
{"select $1::int2", []interface{}{zero.i16}, []interface{}{&actual.i16}, allTypes{}},
{"select $1::int4", []interface{}{expected.i32}, []interface{}{&actual.i32}, allTypes{i32: expected.i32}},
{"select $1::int4", []interface{}{zero.i32}, []interface{}{&actual.i32}, allTypes{}},
{"select $1::int8", []interface{}{expected.i64}, []interface{}{&actual.i64}, allTypes{i64: expected.i64}},
{"select $1::int8", []interface{}{zero.i64}, []interface{}{&actual.i64}, allTypes{}},
{"select $1::float4", []interface{}{expected.f32}, []interface{}{&actual.f32}, allTypes{f32: expected.f32}},
{"select $1::float4", []interface{}{zero.f32}, []interface{}{&actual.f32}, allTypes{}},
{"select $1::float8", []interface{}{expected.f64}, []interface{}{&actual.f64}, allTypes{f64: expected.f64}},
{"select $1::float8", []interface{}{zero.f64}, []interface{}{&actual.f64}, allTypes{}},
{"select $1::bool", []interface{}{expected.b}, []interface{}{&actual.b}, allTypes{b: expected.b}},
{"select $1::bool", []interface{}{zero.b}, []interface{}{&actual.b}, allTypes{}},
{"select $1::timestamptz", []interface{}{expected.t}, []interface{}{&actual.t}, allTypes{t: expected.t}},
{"select $1::timestamptz", []interface{}{zero.t}, []interface{}{&actual.t}, allTypes{}},
}
for i, tt := range tests {
actual = zero
err := conn.QueryRow(context.Background(), tt.sql, tt.queryArgs...).Scan(tt.scanArgs...)
if err != nil {
t.Errorf("%d. Unexpected failure: %v (sql -> %v, queryArgs -> %v)", i, err, tt.sql, tt.queryArgs)
}
assert.Equal(t, tt.expected.s, actual.s)
assert.Equal(t, tt.expected.i16, actual.i16)
assert.Equal(t, tt.expected.i32, actual.i32)
assert.Equal(t, tt.expected.i64, actual.i64)
assert.Equal(t, tt.expected.f32, actual.f32)
assert.Equal(t, tt.expected.f64, actual.f64)
assert.Equal(t, tt.expected.b, actual.b)
if tt.expected.t != nil || actual.t != nil {
assert.True(t, tt.expected.t.Equal(*actual.t))
}
ensureConnValid(t, conn)
}
})
}
func TestPointerPointerNonZero(t *testing.T) {
t.Parallel()
testWithAndWithoutPreferSimpleProtocol(t, func(t *testing.T, conn *pgx.Conn) {
f := "foo"
dest := &f
err := conn.QueryRow(context.Background(), "select $1::text", nil).Scan(&dest)
if err != nil {
t.Errorf("Unexpected failure scanning: %v", err)
}
if dest != nil {
t.Errorf("Expected dest to be nil, got %#v", dest)
}
})
}
func TestEncodeTypeRename(t *testing.T) {
t.Parallel()
testWithAndWithoutPreferSimpleProtocol(t, func(t *testing.T, conn *pgx.Conn) {
type _int int
inInt := _int(1)
var outInt _int
type _int8 int8
inInt8 := _int8(2)
var outInt8 _int8
type _int16 int16
inInt16 := _int16(3)
var outInt16 _int16
type _int32 int32
inInt32 := _int32(4)
var outInt32 _int32
type _int64 int64
inInt64 := _int64(5)
var outInt64 _int64
type _uint uint
inUint := _uint(6)
var outUint _uint
type _uint8 uint8
inUint8 := _uint8(7)
var outUint8 _uint8
type _uint16 uint16
inUint16 := _uint16(8)
var outUint16 _uint16
type _uint32 uint32
inUint32 := _uint32(9)
var outUint32 _uint32
type _uint64 uint64
inUint64 := _uint64(10)
var outUint64 _uint64
type _string string
inString := _string("foo")
var outString _string
err := conn.QueryRow(context.Background(), "select $1::int, $2::int, $3::int2, $4::int4, $5::int8, $6::int, $7::int, $8::int, $9::int, $10::int, $11::text",
inInt, inInt8, inInt16, inInt32, inInt64, inUint, inUint8, inUint16, inUint32, inUint64, inString,
).Scan(&outInt, &outInt8, &outInt16, &outInt32, &outInt64, &outUint, &outUint8, &outUint16, &outUint32, &outUint64, &outString)
if err != nil {
t.Fatalf("Failed with type rename: %v", err)
}
if inInt != outInt {
t.Errorf("int rename: expected %v, got %v", inInt, outInt)
}
if inInt8 != outInt8 {
t.Errorf("int8 rename: expected %v, got %v", inInt8, outInt8)
}
if inInt16 != outInt16 {
t.Errorf("int16 rename: expected %v, got %v", inInt16, outInt16)
}
if inInt32 != outInt32 {
t.Errorf("int32 rename: expected %v, got %v", inInt32, outInt32)
}
if inInt64 != outInt64 {
t.Errorf("int64 rename: expected %v, got %v", inInt64, outInt64)
}
if inUint != outUint {
t.Errorf("uint rename: expected %v, got %v", inUint, outUint)
}
if inUint8 != outUint8 {
t.Errorf("uint8 rename: expected %v, got %v", inUint8, outUint8)
}
if inUint16 != outUint16 {
t.Errorf("uint16 rename: expected %v, got %v", inUint16, outUint16)
}
if inUint32 != outUint32 {
t.Errorf("uint32 rename: expected %v, got %v", inUint32, outUint32)
}
if inUint64 != outUint64 {
t.Errorf("uint64 rename: expected %v, got %v", inUint64, outUint64)
}
if inString != outString {
t.Errorf("string rename: expected %v, got %v", inString, outString)
}
})
}
func TestRowDecodeBinary(t *testing.T) {
t.Parallel()
conn := mustConnectString(t, os.Getenv("PGX_TEST_DATABASE"))
defer closeConn(t, conn)
tests := []struct {
sql string
expected []interface{}
}{
{
"select row(1, 'cat', '2015-01-01 08:12:42-00'::timestamptz)",
[]interface{}{
int32(1),
"cat",
time.Date(2015, 1, 1, 8, 12, 42, 0, time.UTC).Local(),
},
},
{
"select row(100.0::float, 1.09::float)",
[]interface{}{
float64(100),
float64(1.09),
},
},
}
for i, tt := range tests {
var actual []interface{}
err := conn.QueryRow(context.Background(), tt.sql).Scan(&actual)
if err != nil {
t.Errorf("%d. Unexpected failure: %v (sql -> %v)", i, err, tt.sql)
continue
}
for j := range tt.expected {
assert.EqualValuesf(t, tt.expected[j], actual[j], "%d. [%d]", i, j)
}
ensureConnValid(t, conn)
}
}
// https://github.com/jackc/pgx/issues/810
func TestRowsScanNilThenScanValue(t *testing.T) {
t.Parallel()
testWithAndWithoutPreferSimpleProtocol(t, func(t *testing.T, conn *pgx.Conn) {
sql := `select null as a, null as b
union
select 1, 2
order by a nulls first
`
rows, err := conn.Query(context.Background(), sql)