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integration_test.go
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// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package spannerdriver
import (
"context"
cryptorand "crypto/rand"
"database/sql"
"flag"
"fmt"
"log"
"math"
"math/big"
"math/rand"
"net"
"os"
"reflect"
"strconv"
"sync"
"testing"
"time"
"cloud.google.com/go/civil"
"cloud.google.com/go/spanner"
database "cloud.google.com/go/spanner/admin/database/apiv1"
"cloud.google.com/go/spanner/admin/database/apiv1/databasepb"
instance "cloud.google.com/go/spanner/admin/instance/apiv1"
"cloud.google.com/go/spanner/admin/instance/apiv1/instancepb"
"github.com/google/go-cmp/cmp"
"google.golang.org/api/iterator"
"google.golang.org/grpc/codes"
)
var projectId, instanceId string
var skipped bool
func init() {
var ok bool
// Get environment variables or set to default.
if instanceId, ok = os.LookupEnv("SPANNER_TEST_INSTANCE"); !ok {
instanceId = "test-instance"
}
if projectId, ok = os.LookupEnv("SPANNER_TEST_PROJECT"); !ok {
projectId = "test-project"
}
}
func runsOnEmulator() bool {
if _, ok := os.LookupEnv("SPANNER_EMULATOR_HOST"); ok {
return true
}
return false
}
func initTestInstance(config string) (cleanup func(), err error) {
ctx := context.Background()
instanceAdmin, err := instance.NewInstanceAdminClient(ctx)
if err != nil {
return nil, err
}
defer instanceAdmin.Close()
// Check if the instance exists or not.
_, err = instanceAdmin.GetInstance(ctx, &instancepb.GetInstanceRequest{
Name: fmt.Sprintf("projects/%s/instances/%s", projectId, instanceId),
})
if err == nil {
return func() {}, nil
}
if spanner.ErrCode(err) != codes.NotFound {
return nil, err
}
// Instance does not exist. Create a temporary instance for this test run.
// The instance will be deleted after the test run.
op, err := instanceAdmin.CreateInstance(ctx, &instancepb.CreateInstanceRequest{
Parent: fmt.Sprintf("projects/%s", projectId),
InstanceId: instanceId,
Instance: &instancepb.Instance{
Config: fmt.Sprintf("projects/%s/instanceConfigs/%s", projectId, config),
DisplayName: instanceId,
NodeCount: 1,
Labels: map[string]string{
"gosqltestinstance": "true",
"createdat": fmt.Sprintf("t%d", time.Now().Unix()),
},
},
})
if err != nil {
return nil, fmt.Errorf("could not create instance %s: %v", fmt.Sprintf("projects/%s/instances/%s", projectId, instanceId), err)
} else {
// Wait for the instance creation to finish.
_, err := op.Wait(ctx)
if err != nil {
return nil, fmt.Errorf("waiting for instance creation to finish failed: %v", err)
}
}
// Delete the instance after all tests have finished.
// Also delete any stale test instances that might still be around on the project.
return func() {
instanceAdmin, err := instance.NewInstanceAdminClient(ctx)
if err != nil {
return
}
// Delete this test instance.
instanceAdmin.DeleteInstance(ctx, &instancepb.DeleteInstanceRequest{
Name: fmt.Sprintf("projects/%s/instances/%s", projectId, instanceId),
})
// Also delete any other stale test instance.
instances := instanceAdmin.ListInstances(ctx, &instancepb.ListInstancesRequest{
Parent: fmt.Sprintf("projects/%s", projectId),
Filter: "label.gosqltestinstance:*",
})
for {
instance, err := instances.Next()
if err == iterator.Done {
break
}
if err != nil {
log.Printf("failed to fetch instances during cleanup: %v", err)
break
}
if createdAtString, ok := instance.Labels["createdat"]; ok {
// Strip the leading 't' from the value.
seconds, err := strconv.ParseInt(createdAtString[1:], 10, 64)
if err != nil {
log.Printf("failed to parse created time from string %q of instance %s: %v", createdAtString, instance.Name, err)
} else {
diff := time.Duration(time.Now().Unix()-seconds) * time.Second
if diff > time.Hour*2 {
log.Printf("deleting stale test instance %s", instance.Name)
instanceAdmin.DeleteInstance(ctx, &instancepb.DeleteInstanceRequest{
Name: instance.Name,
})
}
}
}
}
}, nil
}
func createTestDB(ctx context.Context, statements ...string) (dsn string, cleanup func(), err error) {
databaseAdminClient, err := database.NewDatabaseAdminClient(ctx)
if err != nil {
return "", nil, err
}
defer databaseAdminClient.Close()
prefix, ok := os.LookupEnv("SPANNER_TEST_DBID")
if !ok {
prefix = "gotest"
}
var uniqueid [4]byte
if _, err = cryptorand.Read(uniqueid[:]); err != nil {
return "", nil, err
}
databaseId := fmt.Sprintf("%s-%x", prefix, uniqueid)
opDB, err := databaseAdminClient.CreateDatabase(ctx, &databasepb.CreateDatabaseRequest{
Parent: fmt.Sprintf("projects/%s/instances/%s", projectId, instanceId),
CreateStatement: fmt.Sprintf("CREATE DATABASE `%s`", databaseId),
ExtraStatements: statements,
})
if err != nil {
return "", nil, err
} else {
// Wait for the database creation to finish.
_, err := opDB.Wait(ctx)
if err != nil {
return "", nil, fmt.Errorf("waiting for database creation to finish failed: %v", err)
}
}
dsn = "projects/" + projectId + "/instances/" + instanceId + "/databases/" + databaseId
cleanup = func() {
databaseAdminClient, err := database.NewDatabaseAdminClient(ctx)
if err != nil {
return
}
defer databaseAdminClient.Close()
databaseAdminClient.DropDatabase(ctx, &databasepb.DropDatabaseRequest{
Database: fmt.Sprintf("projects/%s/instances/%s/databases/%s", projectId, instanceId, databaseId),
})
}
return
}
func initIntegrationTests() (cleanup func(), err error) {
flag.Parse() // Needed for testing.Short().
noop := func() {}
if testing.Short() {
log.Println("Integration tests skipped in -short mode.")
return noop, nil
}
_, hasCredentials := os.LookupEnv("GOOGLE_APPLICATION_CREDENTIALS")
_, hasEmulator := os.LookupEnv("SPANNER_EMULATOR_HOST")
if !(hasCredentials || hasEmulator) {
log.Println("Skipping integration tests as no credentials and no emulator host has been set")
skipped = true
return noop, nil
}
// Automatically create test instance if necessary.
config := "regional-us-east1"
if _, ok := os.LookupEnv("SPANNER_EMULATOR_HOST"); ok {
config = "emulator-config"
}
cleanup, err = initTestInstance(config)
if err != nil {
return nil, err
}
return cleanup, nil
}
func TestMain(m *testing.M) {
cleanup, err := initIntegrationTests()
if err != nil {
log.Fatalf("could not init integration tests: %v", err)
os.Exit(1)
}
res := m.Run()
cleanup()
os.Exit(res)
}
func skipIfShort(t *testing.T) {
if testing.Short() {
t.Skip("Integration tests skipped in -short mode.")
}
if skipped {
t.Skip("Integration tests skipped")
}
}
func skipIfEmulator(t *testing.T, msg string) {
if runsOnEmulator() {
t.Skip(msg)
}
}
func TestQueryContext(t *testing.T) {
skipIfShort(t)
t.Parallel()
// Create test database.
ctx := context.Background()
dsn, cleanup, err := createTestDB(ctx,
`CREATE TABLE TestQueryContext (
A STRING(1024),
B STRING(1024),
C STRING(1024)
) PRIMARY KEY (A)`)
if err != nil {
t.Fatalf("failed to create test db: %v", err)
}
defer cleanup()
// Open db.
db, err := sql.Open("spanner", dsn)
if err != nil {
t.Fatal(err)
}
defer db.Close()
_, err = db.ExecContext(ctx, `INSERT INTO TestQueryContext (A, B, C)
VALUES ("a1", "b1", "c1"), ("a2", "b2", "c2") , ("a3", "b3", "c3") `)
if err != nil {
t.Fatal(err)
}
type testQueryContextRow struct {
A, B, C string
}
tests := []struct {
name string
input string
want []testQueryContextRow
wantErrorQuery bool
wantErrorScan bool
wantErrorClose bool
}{
{
name: "empty query",
wantErrorClose: true,
input: "",
want: []testQueryContextRow{},
},
{
name: "syntax error",
wantErrorClose: true,
input: "SELECT SELECT * FROM TestQueryContext",
want: []testQueryContextRow{},
},
{
name: "return nothing",
input: "SELECT * FROM TestQueryContext WHERE A = \"hihihi\"",
want: []testQueryContextRow{},
},
{
name: "select one tuple",
input: "SELECT * FROM TestQueryContext WHERE A = \"a1\"",
want: []testQueryContextRow{
{A: "a1", B: "b1", C: "c1"},
},
},
{
name: "select subset of tuples",
input: "SELECT * FROM TestQueryContext WHERE A = \"a1\" OR A = \"a2\"",
want: []testQueryContextRow{
{A: "a1", B: "b1", C: "c1"},
{A: "a2", B: "b2", C: "c2"},
},
},
{
name: "select subset of tuples with !=",
input: "SELECT * FROM TestQueryContext WHERE A != \"a3\"",
want: []testQueryContextRow{
{A: "a1", B: "b1", C: "c1"},
{A: "a2", B: "b2", C: "c2"},
},
},
{
name: "select entire table",
input: "SELECT * FROM TestQueryContext ORDER BY A",
want: []testQueryContextRow{
{A: "a1", B: "b1", C: "c1"},
{A: "a2", B: "b2", C: "c2"},
{A: "a3", B: "b3", C: "c3"},
},
},
{
name: "query non existent table",
wantErrorClose: true,
input: "SELECT * FROM NonExistent",
want: []testQueryContextRow{},
},
}
// Run tests
for _, tc := range tests {
rows, err := db.QueryContext(ctx, tc.input)
if (err != nil) && (!tc.wantErrorQuery) {
t.Errorf("%s: unexpected query error: %v", tc.name, err)
}
if (err == nil) && (tc.wantErrorQuery) {
t.Errorf("%s: expected query error but error was %v", tc.name, err)
}
got := []testQueryContextRow{}
for rows.Next() {
var curr testQueryContextRow
err := rows.Scan(&curr.A, &curr.B, &curr.C)
if (err != nil) && (!tc.wantErrorScan) {
t.Errorf("%s: unexpected query error: %v", tc.name, err)
}
if (err == nil) && (tc.wantErrorScan) {
t.Errorf("%s: expected query error but error was %v", tc.name, err)
}
got = append(got, curr)
}
rows.Close()
err = rows.Err()
if (err != nil) && (!tc.wantErrorClose) {
t.Errorf("%s: unexpected query error: %v", tc.name, err)
}
if (err == nil) && (tc.wantErrorClose) {
t.Errorf("%s: expected query error but error was %v", tc.name, err)
}
if !reflect.DeepEqual(tc.want, got) {
t.Errorf("Test failed: %s. want: %v, got: %v", tc.name, tc.want, got)
}
}
}
func TestTypeRoundtrip(t *testing.T) {
skipIfShort(t)
t.Parallel()
// This test checks that all types in checkIsValidType can be used as a query argument and scanned as a result.
//
// The commented out types are currently not working correctly.
//
// The tests that use "scan" could be improved to allow scanning into the same type,
// that it was converted to.
ctx := context.Background()
dsn, cleanup, err := createTestDB(ctx)
if err != nil {
t.Fatalf("failed to create test db: %v", err)
}
defer cleanup()
// Open db.
db, err := sql.Open("spanner", dsn)
if err != nil {
t.Fatal(err)
}
defer db.Close()
now := time.Now().UTC() // spanner doesn't preserve timezone
tests := []struct {
in any
scan any // can be nil, if `in` matches output type.
skipeq bool
}{
{in: sql.NullInt64{Valid: true, Int64: 197}},
{in: sql.NullTime{Valid: true, Time: now}},
{in: sql.NullString{Valid: true, String: "hello"}},
{in: sql.NullFloat64{Valid: true, Float64: 3.14}},
{in: sql.NullBool{Valid: true, Bool: true}},
// {in: sql.NullInt32{Valid: true, Int32: 197}},
// string variants
{in: "hello"},
{in: spanner.NullString{Valid: true, StringVal: "hello"}},
{in: []string{"hello"}, scan: pointerTo([]spanner.NullString{})},
{in: []spanner.NullString{{Valid: true, StringVal: "hello"}}},
// *string variants
{in: pointerTo("hello")},
{in: []*string{pointerTo("hello")}, scan: pointerTo([]spanner.NullString{})},
// []byte variants
{in: []byte{1, 2, 3}},
{in: [][]byte{{1, 2, 3}}},
// uint, *uint variants
{in: uint(197)},
{in: []uint{197}, scan: pointerTo([]spanner.NullInt64{})},
{in: pointerTo(uint(197))},
{in: []*uint{pointerTo(uint(197))}, scan: pointerTo([]spanner.NullInt64{})},
{in: pointerTo([]uint{197}), scan: pointerTo([]spanner.NullInt64{})},
// int, *int variants
{in: int(197)},
{in: []int{197}, scan: pointerTo([]spanner.NullInt64{})},
{in: pointerTo(int(197))},
{in: []*int{pointerTo(197)}, scan: pointerTo([]spanner.NullInt64{})},
{in: pointerTo([]int{197}), scan: pointerTo([]spanner.NullInt64{})},
// int64, *int64 variants
{in: int64(197)},
{in: []int64{}, scan: pointerTo([]spanner.NullInt64{})},
{in: spanner.NullInt64{Valid: true, Int64: 197}},
{in: []spanner.NullInt64{{Valid: true, Int64: 197}}},
{in: pointerTo(int64(197))},
{in: []*int64{pointerTo(int64(197))}, scan: pointerTo([]spanner.NullInt64{})},
// uint64, *uint64 variants
{in: uint64(197)},
{in: []uint64{}, scan: pointerTo([]spanner.NullInt64{})},
{in: pointerTo(uint64(197))},
{in: []*uint64{pointerTo(uint64(197))}, scan: pointerTo([]spanner.NullInt64{})},
// bool variants
{in: true},
{in: []bool{true}, scan: pointerTo([]spanner.NullBool{})},
{in: spanner.NullBool{Valid: true, Bool: true}},
{in: []spanner.NullBool{{Valid: true, Bool: true}}, scan: pointerTo([]spanner.NullBool{})},
{in: pointerTo(true)},
{in: []*bool{pointerTo(true)}, scan: pointerTo([]spanner.NullBool{})},
// float32 variants
{in: float32(3.14)},
{in: []float32{3.14}, scan: pointerTo([]spanner.NullFloat32{})},
{in: spanner.NullFloat32{Valid: true, Float32: 3.14}},
{in: []spanner.NullFloat32{{Valid: true, Float32: 3.14}}},
{in: pointerTo(float32(3.14))},
{in: []*float32{pointerTo(float32(3.14))}, scan: pointerTo([]spanner.NullFloat32{})},
// float64 variants
{in: float64(3.14)},
{in: []float64{3.14}, scan: pointerTo([]spanner.NullFloat64{})},
{in: spanner.NullFloat64{Valid: true, Float64: 3.14}},
{in: []spanner.NullFloat64{{Valid: true, Float64: 3.14}}},
{in: pointerTo(float64(3.14))},
{in: []*float64{pointerTo(float64(3.14))}, scan: pointerTo([]spanner.NullFloat64{})},
// Numeric, big.Rat variants
{in: *big.NewRat(19, 17), skipeq: true},
{in: []big.Rat{*big.NewRat(19, 17)}, scan: pointerTo([]spanner.NullNumeric{})},
{in: big.NewRat(19, 17), skipeq: true},
{in: []*big.Rat{big.NewRat(19, 17)}, scan: pointerTo([]spanner.NullNumeric{})},
{in: spanner.NullNumeric{Valid: true, Numeric: *big.NewRat(19, 100)}},
{in: []spanner.NullNumeric{{Valid: true, Numeric: *big.NewRat(19, 100)}}},
// time.Time variants
{in: now},
{in: []time.Time{now}, scan: pointerTo([]spanner.NullTime{})},
{in: spanner.NullTime{Valid: true, Time: now}},
{in: []spanner.NullTime{{Valid: true, Time: now}}},
{in: pointerTo(now)},
{in: []*time.Time{pointerTo(now)}, scan: pointerTo([]spanner.NullTime{})},
// civil.Date variants
{in: civil.DateOf(now)},
{in: []civil.Date{civil.DateOf(now)}, scan: pointerTo([]spanner.NullDate{})},
{in: spanner.NullDate{Valid: true, Date: civil.DateOf(now)}},
{in: []spanner.NullDate{{Valid: true, Date: civil.DateOf(now)}}},
{in: pointerTo(civil.DateOf(now))},
{in: []*civil.Date{pointerTo(civil.DateOf(now))}, scan: pointerTo([]spanner.NullDate{})},
// JSON variants
{in: spanner.NullJSON{Valid: true, Value: map[string]any{"a": 13}}, skipeq: true},
{in: []spanner.NullJSON{{Valid: true, Value: map[string]any{"a": 13}}}, skipeq: true},
// Standard library type alias examples
{in: net.IPv6loopback},
{in: time.Duration(1)},
}
for _, test := range tests {
t.Run(fmt.Sprintf("%T", test.in), func(t *testing.T) {
out := test.scan
if out == nil {
inType := reflect.TypeOf(test.in)
out = reflect.New(inType).Interface()
}
err := db.QueryRow("SELECT @in", test.in).Scan(out)
if err != nil {
t.Fatalf("failed to query and scan: %v", err)
}
if test.scan == nil && !test.skipeq {
// if the scanned type and input type are the same
// then we can easily check the result.
outelem := reflect.ValueOf(out).Elem().Interface()
if !reflect.DeepEqual(test.in, outelem) {
t.Fatalf("wrong result:\ngot %#v\nwant %#v", outelem, test.in)
}
}
})
}
}
func TestExecContextDml(t *testing.T) {
skipIfShort(t)
t.Parallel()
ctx := context.Background()
dsn, cleanup, err := createTestDB(ctx,
`CREATE TABLE TestExecContextDml (
key INT64,
testString STRING(1024),
testBytes BYTES(1024),
testInt INT64,
testFloat FLOAT64,
testBool BOOL
) PRIMARY KEY (key)`)
if err != nil {
t.Fatalf("failed to create test db: %v", err)
}
defer cleanup()
// Open db.
db, err := sql.Open("spanner", dsn)
if err != nil {
t.Fatal(err)
}
defer db.Close()
type testExecContextDmlRow struct {
key int
testString string
testBytes []byte
testInt int
testFloat float64
testBool bool
}
type then struct {
query string
wantRows []testExecContextDmlRow
wantError bool
}
tests := []struct {
name string
given string
when string
then then
}{
{
name: "insert single tuple",
when: `
INSERT INTO TestExecContextDml
(key, testString, testBytes, testInt, testFloat, testBool)
VALUES (1, "one", CAST("one" as bytes), 42, 42, true ) `,
then: then{
query: `SELECT * FROM TestExecContextDml WHERE key = 1`,
wantRows: []testExecContextDmlRow{
{key: 1, testString: "one", testBytes: []byte("one"), testInt: 42, testFloat: 42, testBool: true},
},
},
},
{
name: "insert multiple tuples",
when: `
INSERT INTO TestExecContextDml
(key, testString, testBytes, testInt, testFloat, testBool)
VALUES (2, "two", CAST("two" as bytes), 42, 42, true ), (3, "three", CAST("three" as bytes), 42, 42, true )`,
then: then{
query: `SELECT * FROM TestExecContextDml ORDER BY key`,
wantRows: []testExecContextDmlRow{
{key: 2, testString: "two", testBytes: []byte("two"), testInt: 42, testFloat: 42, testBool: true},
{key: 3, testString: "three", testBytes: []byte("three"), testInt: 42, testFloat: 42, testBool: true},
},
},
},
{
name: "insert syntax error",
when: `
INSERT INSERT INTO TestExecContextDml
(key, testString, testBytes, testInt, testFloat, testBool)
VALUES (101, "one", CAST("one" as bytes), 42, 42, true ) `,
then: then{
wantError: true,
},
},
{
name: "insert lower case dml",
when: `
insert into TestExecContextDml
(key, testString, testBytes, testInt, testFloat, testBool)
VALUES (4, "four", CAST("four" as bytes), 42, 42, true ) `,
then: then{
query: `SELECT * FROM TestExecContextDml ORDER BY key`,
wantRows: []testExecContextDmlRow{
{key: 4, testString: "four", testBytes: []byte("four"), testInt: 42, testFloat: 42, testBool: true},
},
},
},
{
name: "insert lower case table name",
when: `
INSERT INTO testexeccontextdml (key, testString, testBytes, testInt, testFloat, testBool)
VALUES (5, "five", CAST("five" as bytes), 42, 42, true ) `,
then: then{
query: `SELECT * FROM TestExecContextDml ORDER BY key`,
wantRows: []testExecContextDmlRow{
{key: 5, testString: "five", testBytes: []byte("five"), testInt: 42, testFloat: 42, testBool: true},
},
},
},
{
name: "wrong types",
when: `
INSERT INSERT INTO TestExecContextDml (key, testString, testBytes, testInt, testFloat, testBool)
VALUES (102, 56, 56, 42, hello, "i should be a bool" ) `,
then: then{
wantError: true,
},
},
{
name: "insert primary key duplicate",
when: `
INSERT INSERT INTO TestExecContextDml (key, testString, testBytes, testInt, testFloat, testBool)
VALUES (1, "one", CAST("one" as bytes), 42, 42, true ), (1, "one", CAST("one" as bytes), 42, 42, true ) `,
then: then{
wantError: true,
},
},
{
name: "insert null into primary key",
when: `
INSERT INSERT INTO TestExecContextDml
(key, testString, testBytes, testInt, testFloat, testBool)
VALUES (null, "one", CAST("one" as bytes), 42, 42, true ) `,
then: then{
wantError: true,
},
},
{
name: "insert too many values",
when: `
INSERT INSERT INTO TestExecContextDml
(key, testString, testBytes, testInt, testFloat, testBool)
VALUES (null, "one", CAST("one" as bytes), 42, 42, true, 42 ) `,
then: then{
wantError: true,
},
},
{
name: "insert too few values",
when: `
INSERT INSERT INTO TestExecContextDml
(key, testString, testBytes, testInt, testFloat, testBool)
VALUES (null, "one", CAST("one" as bytes), 42 ) `,
then: then{
wantError: true,
},
},
{
name: "delete single tuple",
given: `
INSERT INTO TestExecContextDml (key, testString, testBytes, testInt, testFloat, testBool)
VALUES (1, "one", CAST("one" as bytes), 42, 42, true ), (2, "two", CAST("two" as bytes), 42, 42, true )`,
when: `DELETE FROM TestExecContextDml WHERE key = 1`,
then: then{
query: `SELECT * FROM TestExecContextDml`,
wantRows: []testExecContextDmlRow{
{key: 2, testString: "two", testBytes: []byte("two"), testInt: 42, testFloat: 42, testBool: true},
},
},
},
{
name: "delete multiple tuples with subthen",
given: `
INSERT INTO TestExecContextDml (key, testString, testBytes, testInt, testFloat, testBool)
VALUES (1, "one", CAST("one" as bytes), 42, 42, true ), (2, "two", CAST("two" as bytes), 42, 42, true ),
(3, "three", CAST("three" as bytes), 42, 42, true ), (4, "four", CAST("four" as bytes), 42, 42, true )`,
when: `
DELETE FROM TestExecContextDml WHERE key
IN (SELECT key FROM TestExecContextDml WHERE key != 4)`,
then: then{
query: `SELECT * FROM TestExecContextDml ORDER BY key`,
wantRows: []testExecContextDmlRow{
{key: 4, testString: "four", testBytes: []byte("four"), testInt: 42, testFloat: 42, testBool: true},
},
},
},
{
name: "delete all tuples",
given: `
INSERT INTO TestExecContextDml (key, testString, testBytes, testInt, testFloat, testBool)
VALUES (1, "one", CAST("one" as bytes), 42, 42, true ), (2, "two", CAST("two" as bytes), 42, 42, true ),
(3, "three", CAST("three" as bytes), 42, 42, true ), (4, "four", CAST("four" as bytes), 42, 42, true )`,
when: `DELETE FROM TestExecContextDml WHERE true`,
then: then{
query: `SELECT * FROM TestExecContextDml`,
wantRows: []testExecContextDmlRow{},
},
},
{
name: "update one tuple",
given: `
INSERT INTO TestExecContextDml (key, testString, testBytes, testInt, testFloat, testBool)
VALUES (1, "one", CAST("one" as bytes), 42, 42, true ), (2, "two", CAST("two" as bytes), 42, 42, true ),
(3, "three", CAST("three" as bytes), 42, 42, true )`,
when: `UPDATE TestExecContextDml SET testSTring = "updated" WHERE key = 1`,
then: then{
query: `SELECT * FROM TestExecContextDml ORDER BY key`,
wantRows: []testExecContextDmlRow{
{key: 1, testString: "updated", testBytes: []byte("one"), testInt: 42, testFloat: 42, testBool: true},
{key: 2, testString: "two", testBytes: []byte("two"), testInt: 42, testFloat: 42, testBool: true},
{key: 3, testString: "three", testBytes: []byte("three"), testInt: 42, testFloat: 42, testBool: true},
},
},
},
{
name: "update multiple tuples",
given: `
INSERT INTO TestExecContextDml (key, testString, testBytes, testInt, testFloat, testBool)
VALUES (1, "one", CAST("one" as bytes), 42, 42, true ), (2, "two", CAST("two" as bytes), 42, 42, true ),
(3, "three", CAST("three" as bytes), 42, 42, true )`,
when: `UPDATE TestExecContextDml SET testSTring = "updated" WHERE key = 2 OR key = 3`,
then: then{
query: `SELECT * FROM TestExecContextDml ORDER BY key`,
wantRows: []testExecContextDmlRow{
{key: 1, testString: "one", testBytes: []byte("one"), testInt: 42, testFloat: 42, testBool: true},
{key: 2, testString: "updated", testBytes: []byte("two"), testInt: 42, testFloat: 42, testBool: true},
{key: 3, testString: "updated", testBytes: []byte("three"), testInt: 42, testFloat: 42, testBool: true},
},
},
},
{
name: "update primary key",
given: `
INSERT INTO TestExecContextDml (key, testString, testBytes, testInt, testFloat, testBool)
VALUES (1, "one", CAST("one" as bytes), 42, 42, true )`,
when: `UPDATE TestExecContextDml SET key = 100 WHERE key = 1`,
then: then{
wantError: true,
},
},
{
name: "update nothing",
given: `
INSERT INTO TestExecContextDml (key, testString, testBytes, testInt, testFloat, testBool)
VALUES (1, "one", CAST("one" as bytes), 42, 42, true ), (2, "two", CAST("two" as bytes), 42, 42, true ),
(3, "three", CAST("three" as bytes), 42, 42, true )`,
when: `UPDATE TestExecContextDml SET testSTring = "nothing" WHERE false`,
then: then{
query: `SELECT * FROM TestExecContextDml ORDER BY key`,
wantRows: []testExecContextDmlRow{
{key: 1, testString: "one", testBytes: []byte("one"), testInt: 42, testFloat: 42, testBool: true},
{key: 2, testString: "two", testBytes: []byte("two"), testInt: 42, testFloat: 42, testBool: true},
{key: 3, testString: "three", testBytes: []byte("three"), testInt: 42, testFloat: 42, testBool: true},
},
},
},
{
name: "update everything",
given: `
INSERT INTO TestExecContextDml (key, testString, testBytes, testInt, testFloat, testBool)
VALUES (1, "one", CAST("one" as bytes), 42, 42, true ), (2, "two", CAST("two" as bytes), 42, 42, true ),
(3, "three", CAST("three" as bytes), 42, 42, true )`,
when: `UPDATE TestExecContextDml SET testSTring = "everything" WHERE true `,
then: then{
query: `SELECT * FROM TestExecContextDml WHERE testString = "everything"`,
wantRows: []testExecContextDmlRow{
{key: 1, testString: "everything", testBytes: []byte("one"), testInt: 42, testFloat: 42, testBool: true},
{key: 2, testString: "everything", testBytes: []byte("two"), testInt: 42, testFloat: 42, testBool: true},
{key: 3, testString: "everything", testBytes: []byte("three"), testInt: 42, testFloat: 42, testBool: true},
},
},
},
{
name: "update to wrong type",
when: `UPDATE TestExecContextDml SET testBool = 100 WHERE key = 1`,
then: then{
wantError: true,
},
},
}
// Run tests.
for _, tc := range tests {
// Set up test table.
if tc.given != "" {
if _, err = db.ExecContext(ctx, tc.given); err != nil {
t.Errorf("%s: error setting up table: %v", tc.name, err)
}
}
// Run DML.
_, err = db.ExecContext(ctx, tc.when)
if (err != nil) && (!tc.then.wantError) {
t.Errorf("%s: unexpected query error: %v", tc.name, err)
}
if (err == nil) && (tc.then.wantError) {
t.Errorf("%s: expected query error but error was %v", tc.name, err)
}
// Check rows returned.
if tc.then.query != "" {
rows, err := db.QueryContext(ctx, tc.then.query)
if err != nil {
t.Errorf("%s: error from QueryContext : %v", tc.name, err)
}
got := []testExecContextDmlRow{}
for rows.Next() {
var curr testExecContextDmlRow
err := rows.Scan(
&curr.key, &curr.testString, &curr.testBytes, &curr.testInt, &curr.testFloat, &curr.testBool)
if err != nil {
t.Errorf("%s: error while scanning rows: %v", tc.name, err)
}
got = append(got, curr)
}
rows.Close()
if err = rows.Err(); err != nil {
t.Errorf("%s: error on rows.close: %v", tc.name, err)
}
if !reflect.DeepEqual(tc.then.wantRows, got) {
t.Errorf("Unexpecred rows: %s. want: %v, got: %v", tc.name, tc.then.wantRows, got)
}
}
// Clear table for next test.
_, err = db.ExecContext(ctx, `DELETE FROM TestExecContextDml WHERE true`)
if (err != nil) && (!tc.then.wantError) {
t.Errorf("%s: unexpected query error: %v", tc.name, err)
}
}
}
func TestRowsAtomicTypes(t *testing.T) {
skipIfShort(t)
t.Parallel()
ctx := context.Background()
dsn, cleanup, err := createTestDB(ctx,
`CREATE TABLE TestAtomicTypes (
key STRING(1024),
testString STRING(1024),
testBytes BYTES(1024),
testInt INT64,
testFloat FLOAT64,
testBool BOOL
) PRIMARY KEY (key)`)
if err != nil {
t.Fatalf("failed to create test db: %v", err)
}
defer cleanup()
// Open db.
db, err := sql.Open("spanner", dsn)
if err != nil {
t.Fatal(err)
}
defer db.Close()
_, err = db.ExecContext(ctx,
`INSERT INTO TestAtomicTypes (key, testString, testBytes, testInt, testFloat, testBool) VALUES
("general", "hello", CAST ("hello" as bytes), 42, 42, TRUE),
("negative", "hello", CAST ("hello" as bytes), -42, -42, TRUE),
("maxint", "hello", CAST ("hello" as bytes), 9223372036854775807 , 42, TRUE),
("minint", "hello", CAST ("hello" as bytes), -9223372036854775808 , 42, TRUE),
("nan", "hello" ,CAST("hello" as bytes), 42, CAST("nan" AS FLOAT64), TRUE),
("pinf", "hello" ,CAST("hello" as bytes), 42, CAST("inf" AS FLOAT64), TRUE),
("ninf", "hello" ,CAST("hello" as bytes), 42, CAST("-inf" AS FLOAT64), TRUE),
("nullstring", null, CAST ("hello" as bytes), 42, 42, TRUE),
("nullbytes", "hello", null, 42, 42, TRUE),
("nullint", "hello", CAST ("hello" as bytes), null, 42, TRUE),
("nullfloat", "hello", CAST ("hello" as bytes), 42, null, TRUE),
("nullbool", "hello", CAST ("hello" as bytes), 42, 42, null)
`)
if err != nil {
t.Fatal(err)
}
type testAtomicTypesRow struct {
key string
testString string
testBytes []byte
testInt int
testFloat float64
testBool bool
}
type wantError struct {
scan bool
close bool
query bool
}
tests := []struct {
name string
input string
want []testAtomicTypesRow
wantError wantError
}{
{
name: "general read",
input: `SELECT * FROM TestAtomicTypes WHERE key = "general"`,
want: []testAtomicTypesRow{
{key: "general", testString: "hello", testBytes: []byte("hello"), testInt: 42, testFloat: 42, testBool: true},
},
},
{
name: "negative int and float",
input: `SELECT * FROM TestAtomicTypes WHERE key = "negative"`,
want: []testAtomicTypesRow{
{key: "negative", testString: "hello", testBytes: []byte("hello"), testInt: -42, testFloat: -42, testBool: true},
},
},
{
name: "max int",
input: `SELECT * FROM TestAtomicTypes WHERE key = "maxint"`,
want: []testAtomicTypesRow{
{key: "maxint", testString: "hello", testBytes: []byte("hello"), testInt: 9223372036854775807, testFloat: 42, testBool: true},
},
},
{
name: "min int",
input: `SELECT * FROM TestAtomicTypes WHERE key = "minint"`,
want: []testAtomicTypesRow{
{key: "minint", testString: "hello", testBytes: []byte("hello"), testInt: -9223372036854775808, testFloat: 42, testBool: true},
},
},
{
name: "special float positive infinity",
input: `SELECT * FROM TestAtomicTypes WHERE key = "pinf"`,
want: []testAtomicTypesRow{
{key: "pinf", testString: "hello", testBytes: []byte("hello"), testInt: 42, testFloat: math.Inf(1), testBool: true},
},
},
{
name: "special float negative infinity",
input: `SELECT * FROM TestAtomicTypes WHERE key = "ninf"`,
want: []testAtomicTypesRow{
{key: "ninf", testString: "hello", testBytes: []byte("hello"), testInt: 42, testFloat: math.Inf(-1), testBool: true},
},
},
}
// Run tests.
for _, tc := range tests {
rows, err := db.QueryContext(ctx, tc.input)