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// +build go1.8
// The following environment variables, if set, will be used:
//
// * SQLX_SQLITE_DSN
// * SQLX_POSTGRES_DSN
// * SQLX_MYSQL_DSN
//
// Set any of these variables to 'skip' to skip them. Note that for MySQL,
// the string '?parseTime=True' will be appended to the DSN if it's not there
// already.
//
package sqlx
import (
"context"
"database/sql"
"encoding/json"
"fmt"
"log"
"strings"
"testing"
"time"
_ "github.com/go-sql-driver/mysql"
"github.com/jmoiron/sqlx/reflectx"
_ "github.com/lib/pq"
_ "github.com/mattn/go-sqlite3"
)
func MultiExecContext(ctx context.Context, e ExecerContext, query string) {
stmts := strings.Split(query, ";\n")
if len(strings.Trim(stmts[len(stmts)-1], " \n\t\r")) == 0 {
stmts = stmts[:len(stmts)-1]
}
for _, s := range stmts {
_, err := e.ExecContext(ctx, s)
if err != nil {
fmt.Println(err, s)
}
}
}
func RunWithSchemaContext(ctx context.Context, schema Schema, t *testing.T, test func(ctx context.Context, db *DB, t *testing.T)) {
runner := func(ctx context.Context, db *DB, t *testing.T, create, drop, now string) {
defer func() {
MultiExecContext(ctx, db, drop)
}()
MultiExecContext(ctx, db, create)
test(ctx, db, t)
}
if TestPostgres {
create, drop, now := schema.Postgres()
runner(ctx, pgdb, t, create, drop, now)
}
if TestSqlite {
create, drop, now := schema.Sqlite3()
runner(ctx, sldb, t, create, drop, now)
}
if TestMysql {
create, drop, now := schema.MySQL()
runner(ctx, mysqldb, t, create, drop, now)
}
}
func loadDefaultFixtureContext(ctx context.Context, db *DB, t *testing.T) {
tx := db.MustBeginTx(ctx, nil)
tx.MustExecContext(ctx, tx.Rebind("INSERT INTO person (first_name, last_name, email) VALUES (?, ?, ?)"), "Jason", "Moiron", "[email protected]")
tx.MustExecContext(ctx, tx.Rebind("INSERT INTO person (first_name, last_name, email) VALUES (?, ?, ?)"), "John", "Doe", "[email protected]")
tx.MustExecContext(ctx, tx.Rebind("INSERT INTO place (country, city, telcode) VALUES (?, ?, ?)"), "United States", "New York", "1")
tx.MustExecContext(ctx, tx.Rebind("INSERT INTO place (country, telcode) VALUES (?, ?)"), "Hong Kong", "852")
tx.MustExecContext(ctx, tx.Rebind("INSERT INTO place (country, telcode) VALUES (?, ?)"), "Singapore", "65")
if db.DriverName() == "mysql" {
tx.MustExecContext(ctx, tx.Rebind("INSERT INTO capplace (`COUNTRY`, `TELCODE`) VALUES (?, ?)"), "Sarf Efrica", "27")
} else {
tx.MustExecContext(ctx, tx.Rebind("INSERT INTO capplace (\"COUNTRY\", \"TELCODE\") VALUES (?, ?)"), "Sarf Efrica", "27")
}
tx.MustExecContext(ctx, tx.Rebind("INSERT INTO employees (name, id) VALUES (?, ?)"), "Peter", "4444")
tx.MustExecContext(ctx, tx.Rebind("INSERT INTO employees (name, id, boss_id) VALUES (?, ?, ?)"), "Joe", "1", "4444")
tx.MustExecContext(ctx, tx.Rebind("INSERT INTO employees (name, id, boss_id) VALUES (?, ?, ?)"), "Martin", "2", "4444")
tx.Commit()
}
// Test a new backwards compatible feature, that missing scan destinations
// will silently scan into sql.RawText rather than failing/panicing
func TestMissingNamesContextContext(t *testing.T) {
RunWithSchemaContext(context.Background(), defaultSchema, t, func(ctx context.Context, db *DB, t *testing.T) {
loadDefaultFixtureContext(ctx, db, t)
type PersonPlus struct {
FirstName string `db:"first_name"`
LastName string `db:"last_name"`
Email string
//AddedAt time.Time `db:"added_at"`
}
// test Select first
pps := []PersonPlus{}
// pps lacks added_at destination
err := db.SelectContext(ctx, &pps, "SELECT * FROM person")
if err == nil {
t.Error("Expected missing name from Select to fail, but it did not.")
}
// test Get
pp := PersonPlus{}
err = db.GetContext(ctx, &pp, "SELECT * FROM person LIMIT 1")
if err == nil {
t.Error("Expected missing name Get to fail, but it did not.")
}
// test naked StructScan
pps = []PersonPlus{}
rows, err := db.QueryContext(ctx, "SELECT * FROM person LIMIT 1")
if err != nil {
t.Fatal(err)
}
rows.Next()
err = StructScan(rows, &pps)
if err == nil {
t.Error("Expected missing name in StructScan to fail, but it did not.")
}
rows.Close()
// now try various things with unsafe set.
db = db.Unsafe()
pps = []PersonPlus{}
err = db.SelectContext(ctx, &pps, "SELECT * FROM person")
if err != nil {
t.Error(err)
}
// test Get
pp = PersonPlus{}
err = db.GetContext(ctx, &pp, "SELECT * FROM person LIMIT 1")
if err != nil {
t.Error(err)
}
// test naked StructScan
pps = []PersonPlus{}
rowsx, err := db.QueryxContext(ctx, "SELECT * FROM person LIMIT 1")
if err != nil {
t.Fatal(err)
}
rowsx.Next()
err = StructScan(rowsx, &pps)
if err != nil {
t.Error(err)
}
rowsx.Close()
// test Named stmt
if !isUnsafe(db) {
t.Error("Expected db to be unsafe, but it isn't")
}
nstmt, err := db.PrepareNamedContext(ctx, `SELECT * FROM person WHERE first_name != :name`)
if err != nil {
t.Fatal(err)
}
// its internal stmt should be marked unsafe
if !nstmt.Stmt.unsafe {
t.Error("expected NamedStmt to be unsafe but its underlying stmt did not inherit safety")
}
pps = []PersonPlus{}
err = nstmt.SelectContext(ctx, &pps, map[string]interface{}{"name": "Jason"})
if err != nil {
t.Fatal(err)
}
if len(pps) != 1 {
t.Errorf("Expected 1 person back, got %d", len(pps))
}
// test it with a safe db
db.unsafe = false
if isUnsafe(db) {
t.Error("expected db to be safe but it isn't")
}
nstmt, err = db.PrepareNamedContext(ctx, `SELECT * FROM person WHERE first_name != :name`)
if err != nil {
t.Fatal(err)
}
// it should be safe
if isUnsafe(nstmt) {
t.Error("NamedStmt did not inherit safety")
}
nstmt.Unsafe()
if !isUnsafe(nstmt) {
t.Error("expected newly unsafed NamedStmt to be unsafe")
}
pps = []PersonPlus{}
err = nstmt.SelectContext(ctx, &pps, map[string]interface{}{"name": "Jason"})
if err != nil {
t.Fatal(err)
}
if len(pps) != 1 {
t.Errorf("Expected 1 person back, got %d", len(pps))
}
})
}
func TestEmbeddedStructsContextContext(t *testing.T) {
type Loop1 struct{ Person }
type Loop2 struct{ Loop1 }
type Loop3 struct{ Loop2 }
RunWithSchemaContext(context.Background(), defaultSchema, t, func(ctx context.Context, db *DB, t *testing.T) {
loadDefaultFixtureContext(ctx, db, t)
peopleAndPlaces := []PersonPlace{}
err := db.SelectContext(
ctx,
&peopleAndPlaces,
`SELECT person.*, place.* FROM
person natural join place`)
if err != nil {
t.Fatal(err)
}
for _, pp := range peopleAndPlaces {
if len(pp.Person.FirstName) == 0 {
t.Errorf("Expected non zero lengthed first name.")
}
if len(pp.Place.Country) == 0 {
t.Errorf("Expected non zero lengthed country.")
}
}
// test embedded structs with StructScan
rows, err := db.QueryxContext(
ctx,
`SELECT person.*, place.* FROM
person natural join place`)
if err != nil {
t.Error(err)
}
perp := PersonPlace{}
rows.Next()
err = rows.StructScan(&perp)
if err != nil {
t.Error(err)
}
if len(perp.Person.FirstName) == 0 {
t.Errorf("Expected non zero lengthed first name.")
}
if len(perp.Place.Country) == 0 {
t.Errorf("Expected non zero lengthed country.")
}
rows.Close()
// test the same for embedded pointer structs
peopleAndPlacesPtrs := []PersonPlacePtr{}
err = db.SelectContext(
ctx,
&peopleAndPlacesPtrs,
`SELECT person.*, place.* FROM
person natural join place`)
if err != nil {
t.Fatal(err)
}
for _, pp := range peopleAndPlacesPtrs {
if len(pp.Person.FirstName) == 0 {
t.Errorf("Expected non zero lengthed first name.")
}
if len(pp.Place.Country) == 0 {
t.Errorf("Expected non zero lengthed country.")
}
}
// test "deep nesting"
l3s := []Loop3{}
err = db.SelectContext(ctx, &l3s, `select * from person`)
if err != nil {
t.Fatal(err)
}
for _, l3 := range l3s {
if len(l3.Loop2.Loop1.Person.FirstName) == 0 {
t.Errorf("Expected non zero lengthed first name.")
}
}
// test "embed conflicts"
ec := []EmbedConflict{}
err = db.SelectContext(ctx, &ec, `select * from person`)
// I'm torn between erroring here or having some kind of working behavior
// in order to allow for more flexibility in destination structs
if err != nil {
t.Errorf("Was not expecting an error on embed conflicts.")
}
})
}
func TestJoinQueryContext(t *testing.T) {
type Employee struct {
Name string
ID int64
// BossID is an id into the employee table
BossID sql.NullInt64 `db:"boss_id"`
}
type Boss Employee
RunWithSchemaContext(context.Background(), defaultSchema, t, func(ctx context.Context, db *DB, t *testing.T) {
loadDefaultFixtureContext(ctx, db, t)
var employees []struct {
Employee
Boss `db:"boss"`
}
err := db.SelectContext(ctx,
&employees,
`SELECT employees.*, boss.id "boss.id", boss.name "boss.name" FROM employees
JOIN employees AS boss ON employees.boss_id = boss.id`)
if err != nil {
t.Fatal(err)
}
for _, em := range employees {
if len(em.Employee.Name) == 0 {
t.Errorf("Expected non zero lengthed name.")
}
if em.Employee.BossID.Int64 != em.Boss.ID {
t.Errorf("Expected boss ids to match")
}
}
})
}
func TestJoinQueryNamedPointerStructsContext(t *testing.T) {
type Employee struct {
Name string
ID int64
// BossID is an id into the employee table
BossID sql.NullInt64 `db:"boss_id"`
}
type Boss Employee
RunWithSchemaContext(context.Background(), defaultSchema, t, func(ctx context.Context, db *DB, t *testing.T) {
loadDefaultFixtureContext(ctx, db, t)
var employees []struct {
Emp1 *Employee `db:"emp1"`
Emp2 *Employee `db:"emp2"`
*Boss `db:"boss"`
}
err := db.SelectContext(ctx,
&employees,
`SELECT emp.name "emp1.name", emp.id "emp1.id", emp.boss_id "emp1.boss_id",
emp.name "emp2.name", emp.id "emp2.id", emp.boss_id "emp2.boss_id",
boss.id "boss.id", boss.name "boss.name" FROM employees AS emp
JOIN employees AS boss ON emp.boss_id = boss.id
`)
if err != nil {
t.Fatal(err)
}
for _, em := range employees {
if len(em.Emp1.Name) == 0 || len(em.Emp2.Name) == 0 {
t.Errorf("Expected non zero lengthed name.")
}
if em.Emp1.BossID.Int64 != em.Boss.ID || em.Emp2.BossID.Int64 != em.Boss.ID {
t.Errorf("Expected boss ids to match")
}
}
})
}
func TestSelectSliceMapTimeContext(t *testing.T) {
RunWithSchemaContext(context.Background(), defaultSchema, t, func(ctx context.Context, db *DB, t *testing.T) {
loadDefaultFixtureContext(ctx, db, t)
rows, err := db.QueryxContext(ctx, "SELECT * FROM person")
if err != nil {
t.Fatal(err)
}
for rows.Next() {
_, err := rows.SliceScan()
if err != nil {
t.Error(err)
}
}
rows, err = db.QueryxContext(ctx, "SELECT * FROM person")
if err != nil {
t.Fatal(err)
}
for rows.Next() {
m := map[string]interface{}{}
err := rows.MapScan(m)
if err != nil {
t.Error(err)
}
}
})
}
func TestNilReceiverContext(t *testing.T) {
RunWithSchemaContext(context.Background(), defaultSchema, t, func(ctx context.Context, db *DB, t *testing.T) {
loadDefaultFixtureContext(ctx, db, t)
var p *Person
err := db.GetContext(ctx, p, "SELECT * FROM person LIMIT 1")
if err == nil {
t.Error("Expected error when getting into nil struct ptr.")
}
var pp *[]Person
err = db.SelectContext(ctx, pp, "SELECT * FROM person")
if err == nil {
t.Error("Expected an error when selecting into nil slice ptr.")
}
})
}
func TestNamedQueryContext(t *testing.T) {
var schema = Schema{
create: `
CREATE TABLE place (
id integer PRIMARY KEY,
name text NULL
);
CREATE TABLE person (
first_name text NULL,
last_name text NULL,
email text NULL
);
CREATE TABLE placeperson (
first_name text NULL,
last_name text NULL,
email text NULL,
place_id integer NULL
);
CREATE TABLE jsperson (
"FIRST" text NULL,
last_name text NULL,
"EMAIL" text NULL
);`,
drop: `
drop table person;
drop table jsperson;
drop table place;
drop table placeperson;
`,
}
RunWithSchemaContext(context.Background(), schema, t, func(ctx context.Context, db *DB, t *testing.T) {
type Person struct {
FirstName sql.NullString `db:"first_name"`
LastName sql.NullString `db:"last_name"`
Email sql.NullString
}
p := Person{
FirstName: sql.NullString{String: "ben", Valid: true},
LastName: sql.NullString{String: "doe", Valid: true},
}
q1 := `INSERT INTO person (first_name, last_name, email) VALUES (:first_name, :last_name, :email)`
_, err := db.NamedExecContext(ctx, q1, p)
if err != nil {
log.Fatal(err)
}
p2 := &Person{}
rows, err := db.NamedQueryContext(ctx, "SELECT * FROM person WHERE first_name=:first_name", p)
if err != nil {
log.Fatal(err)
}
for rows.Next() {
err = rows.StructScan(p2)
if err != nil {
t.Error(err)
}
if p2.FirstName.String != "ben" {
t.Error("Expected first name of `ben`, got " + p2.FirstName.String)
}
if p2.LastName.String != "doe" {
t.Error("Expected first name of `doe`, got " + p2.LastName.String)
}
}
// these are tests for #73; they verify that named queries work if you've
// changed the db mapper. This code checks both NamedQuery "ad-hoc" style
// queries and NamedStmt queries, which use different code paths internally.
old := *db.Mapper
type JSONPerson struct {
FirstName sql.NullString `json:"FIRST"`
LastName sql.NullString `json:"last_name"`
Email sql.NullString
}
jp := JSONPerson{
FirstName: sql.NullString{String: "ben", Valid: true},
LastName: sql.NullString{String: "smith", Valid: true},
}
db.Mapper = reflectx.NewMapperFunc("json", strings.ToUpper)
// prepare queries for case sensitivity to test our ToUpper function.
// postgres and sqlite accept "", but mysql uses ``; since Go's multi-line
// strings are `` we use "" by default and swap out for MySQL
pdb := func(s string, db *DB) string {
if db.DriverName() == "mysql" {
return strings.Replace(s, `"`, "`", -1)
}
return s
}
q1 = `INSERT INTO jsperson ("FIRST", last_name, "EMAIL") VALUES (:FIRST, :last_name, :EMAIL)`
_, err = db.NamedExecContext(ctx, pdb(q1, db), jp)
if err != nil {
t.Fatal(err, db.DriverName())
}
// Checks that a person pulled out of the db matches the one we put in
check := func(t *testing.T, rows *Rows) {
jp = JSONPerson{}
for rows.Next() {
err = rows.StructScan(&jp)
if err != nil {
t.Error(err)
}
if jp.FirstName.String != "ben" {
t.Errorf("Expected first name of `ben`, got `%s` (%s) ", jp.FirstName.String, db.DriverName())
}
if jp.LastName.String != "smith" {
t.Errorf("Expected LastName of `smith`, got `%s` (%s)", jp.LastName.String, db.DriverName())
}
t.Errorf("Expected first name of `doe`, got `%s` (%s)", jp.Email.String, db.DriverName())
}
}
}
ns, err := db.PrepareNamed(pdb(`
SELECT * FROM jsperson
WHERE
"FIRST"=:FIRST AND
last_name=:last_name AND
"EMAIL"=:EMAIL
`, db))
if err != nil {
t.Fatal(err)
}
rows, err = ns.QueryxContext(ctx, jp)
if err != nil {
t.Fatal(err)
}
check(t, rows)
// Check exactly the same thing, but with db.NamedQuery, which does not go
// through the PrepareNamed/NamedStmt path.
rows, err = db.NamedQueryContext(ctx, pdb(`
SELECT * FROM jsperson
WHERE
"FIRST"=:FIRST AND
last_name=:last_name AND
"EMAIL"=:EMAIL
`, db), jp)
if err != nil {
t.Fatal(err)
}
check(t, rows)
db.Mapper = &old
// Test nested structs
type Place struct {
ID int `db:"id"`
Name sql.NullString `db:"name"`
}
type PlacePerson struct {
FirstName sql.NullString `db:"first_name"`
LastName sql.NullString `db:"last_name"`
Email sql.NullString
Place Place `db:"place"`
}
pl := Place{
Name: sql.NullString{String: "myplace", Valid: true},
}
pp := PlacePerson{
FirstName: sql.NullString{String: "ben", Valid: true},
LastName: sql.NullString{String: "doe", Valid: true},
}
q2 := `INSERT INTO place (id, name) VALUES (1, :name)`
_, err = db.NamedExecContext(ctx, q2, pl)
if err != nil {
log.Fatal(err)
}
id := 1
pp.Place.ID = id
q3 := `INSERT INTO placeperson (first_name, last_name, email, place_id) VALUES (:first_name, :last_name, :email, :place.id)`
_, err = db.NamedExecContext(ctx, q3, pp)
if err != nil {
log.Fatal(err)
}
pp2 := &PlacePerson{}
rows, err = db.NamedQueryContext(ctx, `
SELECT
first_name,
last_name,
email,
place.id AS "place.id",
place.name AS "place.name"
FROM placeperson
INNER JOIN place ON place.id = placeperson.place_id
WHERE
place.id=:place.id`, pp)
if err != nil {
log.Fatal(err)
}
for rows.Next() {
err = rows.StructScan(pp2)
if err != nil {
t.Error(err)
}
if pp2.FirstName.String != "ben" {
t.Error("Expected first name of `ben`, got " + pp2.FirstName.String)
}
if pp2.LastName.String != "doe" {
t.Error("Expected first name of `doe`, got " + pp2.LastName.String)
}
if pp2.Place.Name.String != "myplace" {
t.Error("Expected place name of `myplace`, got " + pp2.Place.Name.String)
}
if pp2.Place.ID != pp.Place.ID {
t.Errorf("Expected place name of %v, got %v", pp.Place.ID, pp2.Place.ID)
}
}
})
}
func TestNilInsertsContext(t *testing.T) {
var schema = Schema{
create: `
CREATE TABLE tt (
id integer,
value text NULL DEFAULT NULL
);`,
drop: "drop table tt;",
}
RunWithSchemaContext(context.Background(), schema, t, func(ctx context.Context, db *DB, t *testing.T) {
type TT struct {
ID int
Value *string
}
var v, v2 TT
r := db.Rebind
db.MustExecContext(ctx, r(`INSERT INTO tt (id) VALUES (1)`))
db.GetContext(ctx, &v, r(`SELECT * FROM tt`))
if v.ID != 1 {
t.Errorf("Expecting id of 1, got %v", v.ID)
}
if v.Value != nil {
t.Errorf("Expecting NULL to map to nil, got %s", *v.Value)
}
v.ID = 2
// NOTE: this incidentally uncovered a bug which was that named queries with
// pointer destinations would not work if the passed value here was not addressable,
// as reflectx.FieldByIndexes attempts to allocate nil pointer receivers for
// writing. This was fixed by creating & using the reflectx.FieldByIndexesReadOnly
// function. This next line is important as it provides the only coverage for this.
db.NamedExecContext(ctx, `INSERT INTO tt (id, value) VALUES (:id, :value)`, v)
db.GetContext(ctx, &v2, r(`SELECT * FROM tt WHERE id=2`))
if v.ID != v2.ID {
t.Errorf("%v != %v", v.ID, v2.ID)
}
if v2.Value != nil {
t.Errorf("Expecting NULL to map to nil, got %s", *v.Value)
}
})
}
func TestScanErrorContext(t *testing.T) {
var schema = Schema{
create: `
CREATE TABLE kv (
k text,
v integer
);`,
drop: `drop table kv;`,
}
RunWithSchemaContext(context.Background(), schema, t, func(ctx context.Context, db *DB, t *testing.T) {
type WrongTypes struct {
K int
V string
}
_, err := db.Exec(db.Rebind("INSERT INTO kv (k, v) VALUES (?, ?)"), "hi", 1)
if err != nil {
t.Error(err)
}
rows, err := db.QueryxContext(ctx, "SELECT * FROM kv")
if err != nil {
t.Error(err)
}
for rows.Next() {
var wt WrongTypes
err := rows.StructScan(&wt)
if err == nil {
t.Errorf("%s: Scanning wrong types into keys should have errored.", db.DriverName())
}
}
})
}
// FIXME: this function is kinda big but it slows things down to be constantly
// loading and reloading the schema..
func TestUsageContext(t *testing.T) {
RunWithSchemaContext(context.Background(), defaultSchema, t, func(ctx context.Context, db *DB, t *testing.T) {
loadDefaultFixtureContext(ctx, db, t)
slicemembers := []SliceMember{}
err := db.SelectContext(ctx, &slicemembers, "SELECT * FROM place ORDER BY telcode ASC")
if err != nil {
t.Fatal(err)
}
people := []Person{}
err = db.SelectContext(ctx, &people, "SELECT * FROM person ORDER BY first_name ASC")
if err != nil {
t.Fatal(err)
}
jason, john := people[0], people[1]
if jason.FirstName != "Jason" {
t.Errorf("Expecting FirstName of Jason, got %s", jason.FirstName)
}
if jason.LastName != "Moiron" {
t.Errorf("Expecting LastName of Moiron, got %s", jason.LastName)
}
}
t.Errorf("John Doe's person record not what expected: Got %v\n", john)
}
jason = Person{}
err = db.GetContext(ctx, &jason, db.Rebind("SELECT * FROM person WHERE first_name=?"), "Jason")
if err != nil {
t.Fatal(err)
}
if jason.FirstName != "Jason" {
t.Errorf("Expecting to get back Jason, but got %v\n", jason.FirstName)
}
err = db.GetContext(ctx, &jason, db.Rebind("SELECT * FROM person WHERE first_name=?"), "Foobar")
if err == nil {
t.Errorf("Expecting an error, got nil\n")
}
if err != sql.ErrNoRows {
t.Errorf("Expected sql.ErrNoRows, got %v\n", err)
}
// The following tests check statement reuse, which was actually a problem
// due to copying being done when creating Stmt's which was eventually removed
stmt1, err := db.PreparexContext(ctx, db.Rebind("SELECT * FROM person WHERE first_name=?"))
if err != nil {
t.Fatal(err)
}
jason = Person{}
row := stmt1.QueryRowx("DoesNotExist")
row.Scan(&jason)
row = stmt1.QueryRowx("DoesNotExist")
row.Scan(&jason)
err = stmt1.GetContext(ctx, &jason, "DoesNotExist User")
if err == nil {
t.Error("Expected an error")
}
err = stmt1.GetContext(ctx, &jason, "DoesNotExist User 2")
if err == nil {
t.Fatal(err)
}
stmt2, err := db.PreparexContext(ctx, db.Rebind("SELECT * FROM person WHERE first_name=?"))
if err != nil {
t.Fatal(err)
}
jason = Person{}
tx, err := db.Beginx()
if err != nil {
t.Fatal(err)
}
tstmt2 := tx.Stmtx(stmt2)
row2 := tstmt2.QueryRowx("Jason")
err = row2.StructScan(&jason)
if err != nil {
t.Error(err)
}
tx.Commit()
places := []*Place{}
err = db.SelectContext(ctx, &places, "SELECT telcode FROM place ORDER BY telcode ASC")
if err != nil {
t.Fatal(err)
}
usa, singsing, honkers := places[0], places[1], places[2]
if usa.TelCode != 1 || honkers.TelCode != 852 || singsing.TelCode != 65 {
t.Errorf("Expected integer telcodes to work, got %#v", places)
}
placesptr := []PlacePtr{}
err = db.SelectContext(ctx, &placesptr, "SELECT * FROM place ORDER BY telcode ASC")
if err != nil {
t.Error(err)
}
//fmt.Printf("%#v\n%#v\n%#v\n", placesptr[0], placesptr[1], placesptr[2])
// if you have null fields and use SELECT *, you must use sql.Null* in your struct
// this test also verifies that you can use either a []Struct{} or a []*Struct{}
places2 := []Place{}
err = db.SelectContext(ctx, &places2, "SELECT * FROM place ORDER BY telcode ASC")
if err != nil {
t.Fatal(err)
}
usa, singsing, honkers = &places2[0], &places2[1], &places2[2]
// this should return a type error that &p is not a pointer to a struct slice
p := Place{}
err = db.SelectContext(ctx, &p, "SELECT * FROM place ORDER BY telcode ASC")
if err == nil {
t.Errorf("Expected an error, argument to select should be a pointer to a struct slice")
}
// this should be an error
pl := []Place{}
err = db.SelectContext(ctx, pl, "SELECT * FROM place ORDER BY telcode ASC")
if err == nil {
t.Errorf("Expected an error, argument to select should be a pointer to a struct slice, not a slice.")
}
if usa.TelCode != 1 || honkers.TelCode != 852 || singsing.TelCode != 65 {
t.Errorf("Expected integer telcodes to work, got %#v", places)
}
stmt, err := db.PreparexContext(ctx, db.Rebind("SELECT country, telcode FROM place WHERE telcode > ? ORDER BY telcode ASC"))
if err != nil {
t.Error(err)
}
places = []*Place{}
err = stmt.SelectContext(ctx, &places, 10)
if len(places) != 2 {
t.Error("Expected 2 places, got 0.")
}
if err != nil {
t.Fatal(err)
}
singsing, honkers = places[0], places[1]
if singsing.TelCode != 65 || honkers.TelCode != 852 {
t.Errorf("Expected the right telcodes, got %#v", places)
}
rows, err := db.QueryxContext(ctx, "SELECT * FROM place")
if err != nil {
t.Fatal(err)
}
place := Place{}
for rows.Next() {
err = rows.StructScan(&place)
if err != nil {
t.Fatal(err)
}
}
rows, err = db.QueryxContext(ctx, "SELECT * FROM place")
if err != nil {
t.Fatal(err)
}
m := map[string]interface{}{}
for rows.Next() {
err = rows.MapScan(m)
if err != nil {
t.Fatal(err)
}
_, ok := m["country"]
if !ok {
t.Errorf("Expected key `country` in map but could not find it (%#v)\n", m)
}
}
rows, err = db.QueryxContext(ctx, "SELECT * FROM place")
if err != nil {
t.Fatal(err)
}
for rows.Next() {
s, err := rows.SliceScan()
if err != nil {
t.Error(err)
}
if len(s) != 3 {
t.Errorf("Expected 3 columns in result, got %d\n", len(s))
}
}
// test advanced querying
// test that NamedExec works with a map as well as a struct
_, err = db.NamedExecContext(ctx, "INSERT INTO person (first_name, last_name, email) VALUES (:first, :last, :email)", map[string]interface{}{
"first": "Bin",
"last": "Smuth",
"email": "[email protected]",
})
if err != nil {
t.Fatal(err)
}
// ensure that if the named param happens right at the end it still works
// ensure that NamedQuery works with a map[string]interface{}
rows, err = db.NamedQueryContext(ctx, "SELECT * FROM person WHERE first_name=:first", map[string]interface{}{"first": "Bin"})
if err != nil {
t.Fatal(err)
}
ben := &Person{}
for rows.Next() {
err = rows.StructScan(ben)
if err != nil {
t.Fatal(err)
}
if ben.FirstName != "Bin" {
t.Fatal("Expected first name of `Bin`, got " + ben.FirstName)
}
if ben.LastName != "Smuth" {
t.Fatal("Expected first name of `Smuth`, got " + ben.LastName)
}
}
ben.FirstName = "Ben"
ben.LastName = "Smith"
// Insert via a named query using the struct
_, err = db.NamedExecContext(ctx, "INSERT INTO person (first_name, last_name, email) VALUES (:first_name, :last_name, :email)", ben)
if err != nil {
t.Fatal(err)
}
rows, err = db.NamedQueryContext(ctx, "SELECT * FROM person WHERE first_name=:first_name", ben)
if err != nil {
t.Fatal(err)
}
for rows.Next() {
err = rows.StructScan(ben)
if err != nil {
t.Fatal(err)
}
if ben.FirstName != "Ben" {
t.Fatal("Expected first name of `Ben`, got " + ben.FirstName)
}
if ben.LastName != "Smith" {
t.Fatal("Expected first name of `Smith`, got " + ben.LastName)
}
}
// ensure that Get does not panic on emppty result set
person := &Person{}
err = db.GetContext(ctx, person, "SELECT * FROM person WHERE first_name=$1", "does-not-exist")
if err == nil {
t.Fatal("Should have got an error for Get on non-existent row.")
}
// lets test prepared statements some more
stmt, err = db.PreparexContext(ctx, db.Rebind("SELECT * FROM person WHERE first_name=?"))
if err != nil {
t.Fatal(err)
}
rows, err = stmt.QueryxContext(ctx, "Ben")
if err != nil {
t.Fatal(err)
}
for rows.Next() {