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db_test.go
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db_test.go
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package pg_test
import (
"bytes"
"context"
"crypto/tls"
"database/sql"
"fmt"
"io/ioutil"
"math"
"net"
"os"
"strings"
"testing"
"time"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/stretchr/testify/require"
"github.com/go-pg/pg/v10"
"github.com/go-pg/pg/v10/orm"
)
func init() {
orm.RegisterTable((*BookGenre)(nil))
orm.RegisterTable((*IngredientRecipe)(nil))
}
func TestGinkgo(t *testing.T) {
RegisterFailHandler(Fail)
RunSpecs(t, "pg")
}
func pgOptions() *pg.Options {
return &pg.Options{
User: "postgres",
Password: "postgres",
TLSConfig: getTLSConfig(),
MaxRetries: 1,
MinRetryBackoff: -1,
DialTimeout: 30 * time.Second,
ReadTimeout: 10 * time.Second,
WriteTimeout: 10 * time.Second,
PoolSize: 10,
MaxConnAge: 10 * time.Second,
PoolTimeout: 30 * time.Second,
IdleTimeout: 10 * time.Second,
IdleCheckFrequency: 100 * time.Millisecond,
}
}
func getTLSConfig() *tls.Config {
pgSSLMode := os.Getenv("PGSSLMODE")
if pgSSLMode == "disable" {
return nil
}
return &tls.Config{
InsecureSkipVerify: true,
}
}
var _testDB *pg.DB
func testDB() *pg.DB {
if _testDB == nil {
_testDB = pg.Connect(pgOptions())
}
return _testDB
}
func TestDBString(t *testing.T) {
db := pg.Connect(pgOptions())
defer db.Close()
env := func(key, defValue string) string {
envValue := os.Getenv(key)
if envValue != "" {
return envValue
}
return defValue
}
host := env("PGHOST", "localhost")
port := env("PGPORT", "5432")
wanted := fmt.Sprintf(`DB<Addr="%s:%s">`, host, port)
if db.String() != wanted {
t.Fatalf("got %q, wanted %q", db.String(), wanted)
}
db = db.WithParam("param1", "value1").WithParam("param2", 2)
wanted = fmt.Sprintf(`DB<Addr="%s:%s" param1=value1 param2=2>`, host, port)
if db.String() != wanted {
t.Fatalf("got %q, wanted %q", db.String(), wanted)
}
}
func TestDBConnectWithStartupNotice(t *testing.T) {
options := pgOptions()
// Set our application name to be too long.
options.ApplicationName = "i am just a really really super long application name so that i make a notice during startup"
db := pg.Connect(options)
defer db.Close()
// Upon hitting PostgreSQL we would normally receive an error if we don't handle the notice response, this will
// now succeed.
require.NoError(t, db.Ping(context.Background()), "must successfully ping database with long application name")
}
func TestOnConnect(t *testing.T) {
opt := pgOptions()
opt.OnConnect = func(ctx context.Context, db *pg.Conn) error {
_, err := db.Exec("SET application_name = 'myapp'")
return err
}
db := pg.Connect(opt)
defer db.Close()
var name string
_, err := db.QueryOne(pg.Scan(&name), "SHOW application_name")
if err != nil {
t.Fatal(err)
}
if name != "myapp" {
t.Fatalf(`got %q, wanted "myapp"`, name)
}
}
func TestEmptyQuery(t *testing.T) {
db := pg.Connect(pgOptions())
defer db.Close()
assert := func(err error) {
if err == nil {
t.Fatal("error expected")
}
if err.Error() != "pg: query is empty" {
t.Fatal(err)
}
}
_, err := db.Exec("")
assert(err)
_, err = db.Query(pg.Discard, "")
assert(err)
stmt, err := db.Prepare("")
if err != nil {
t.Fatal(err)
}
_, err = stmt.Exec()
assert(err)
}
func TestAnonymousStructField(t *testing.T) {
type MyInt struct{ int }
type MyStruct struct {
Ints []MyInt `pg:",array"`
}
db := testDB()
var st MyStruct
_, err := db.Query(&st, "SELECT ARRAY[1,2,3,4] AS ints")
Expect(err).ToNot(BeNil())
if !strings.Contains(err.Error(), "json: cannot unmarshal") {
t.Fatal(err)
}
}
func TestContextCanceled(t *testing.T) {
db := testDB()
c := context.Background()
c, cancel := context.WithCancel(c)
cancel()
_, err := db.ExecContext(c, "SELECT 1")
if err == nil {
t.Fatalf("got nil, expected an error")
}
wanted := "context canceled"
if err.Error() != wanted {
t.Fatalf("got %q, wanted %q", err, wanted)
}
}
func TestBigColumn(t *testing.T) {
const colLen = 100000
type Test struct {
ID int
Text string
}
db := pg.Connect(pgOptions())
defer db.Close()
err := db.Model((*Test)(nil)).CreateTable(&orm.CreateTableOptions{
Temp: true,
})
if err != nil {
t.Fatal(err)
}
_, err = db.Model(&Test{
Text: strings.Repeat("*", colLen),
}).Insert()
if err != nil {
t.Fatal(err)
}
test := new(Test)
err = db.Model(test).Select()
if err != nil {
t.Fatal(err)
}
if len(test.Text) != colLen {
t.Fatalf("got %d, wanted %d", len(test.Text), colLen)
}
if _, err := db.Exec("SELECT * FROM tests"); err != nil {
t.Fatal(err)
}
_, err = db.CopyTo(ioutil.Discard, "COPY (SELECT * FROM tests) TO STDOUT WITH CSV")
if err != nil {
t.Fatal(err)
}
}
var _ = Describe("OnConnect", func() {
It("does not panic on timeout", func() {
opt := pgOptions()
opt.OnConnect = func(ctx context.Context, conn *pg.Conn) error {
_, err := conn.Exec("SELECT pg_sleep(10)")
return err
}
db := pg.Connect(opt)
defer db.Close()
ctx, cancel := context.WithCancel(context.Background())
go func() {
time.Sleep(500 * time.Millisecond)
cancel()
}()
_, err := db.ExecContext(ctx, "SELECT 1")
Expect(err).To(MatchError("ERROR #57014 canceling statement due to user request"))
})
It("does not panic with RunInTransaction", func() {
opt := pgOptions()
opt.OnConnect = func(ctx context.Context, conn *pg.Conn) error {
_, err := conn.Exec("SELECT 1")
return err
}
db := pg.Connect(opt)
defer db.Close()
err := db.RunInTransaction(ctx, func(tx *pg.Tx) error {
_, err := tx.Exec(`SELECT 1`)
return err
})
Expect(err).NotTo(HaveOccurred())
})
})
var _ = Describe("DB", func() {
var db *pg.DB
var tx *pg.Tx
BeforeEach(func() {
db = pg.Connect(pgOptions())
var err error
tx, err = db.Begin()
Expect(err).NotTo(HaveOccurred())
})
AfterEach(func() {
Expect(db.Close()).NotTo(HaveOccurred())
})
Describe("uint64 in struct field", func() {
It("is appended and scanned as int64", func() {
type My struct {
ID uint64 `pg:"type:bigint"`
}
err := db.Model((*My)(nil)).CreateTable(&orm.CreateTableOptions{
Temp: true,
})
Expect(err).NotTo(HaveOccurred())
my := &My{
ID: math.MaxUint64,
}
_, err = db.Model(my).Insert()
Expect(err).NotTo(HaveOccurred())
my = &My{}
err = db.Model(my).First()
Expect(err).NotTo(HaveOccurred())
Expect(my.ID).To(Equal(uint64(math.MaxUint64)))
})
})
Describe("Query", func() {
It("does not return an error when there are no results", func() {
res, err := db.Query(pg.Discard, "SELECT 1 WHERE 1 = 2")
Expect(err).NotTo(HaveOccurred())
Expect(res.RowsAffected()).To(Equal(0))
res, err = tx.Query(pg.Discard, "SELECT 1 WHERE 1 = 2")
Expect(err).NotTo(HaveOccurred())
Expect(res.RowsAffected()).To(Equal(0))
})
It("selects into embedded struct pointer", func() {
type One struct {
ID int
}
type Two struct {
*One
}
two := new(Two)
_, err := db.QueryOne(two, "SELECT 1 AS id")
Expect(err).NotTo(HaveOccurred())
Expect(two.One.ID).To(Equal(1))
})
})
Describe("QueryOne", func() {
It("returns pg.ErrNoRows when there are no results", func() {
_, err := db.QueryOne(pg.Discard, "SELECT 1 WHERE 1 = 2")
Expect(err).To(Equal(pg.ErrNoRows))
_, err = tx.QueryOne(pg.Discard, "SELECT 1 WHERE 1 = 2")
Expect(err).To(Equal(pg.ErrNoRows))
})
})
Describe("Exec", func() {
It("does not return an error when there are no results", func() {
res, err := db.Exec("SELECT 1 WHERE 1 = 2")
Expect(err).NotTo(HaveOccurred())
Expect(res.RowsAffected()).To(Equal(0))
res, err = tx.Exec("SELECT 1 WHERE 1 = 2")
Expect(err).NotTo(HaveOccurred())
Expect(res.RowsAffected()).To(Equal(0))
})
})
Describe("ExecOne", func() {
It("returns pg.ErrNoRows when there are no results", func() {
_, err := db.ExecOne("SELECT 1 WHERE 1 = 2")
Expect(err).To(Equal(pg.ErrNoRows))
_, err = tx.ExecOne("SELECT 1 WHERE 1 = 2")
Expect(err).To(Equal(pg.ErrNoRows))
})
})
Describe("Prepare", func() {
It("returns an error when query can't be prepared", func() {
for i := 0; i < 3; i++ {
_, err := db.Prepare("totally invalid sql")
Expect(err).NotTo(BeNil())
Expect(strings.Contains(err.Error(), "#42601")).To(BeTrue())
Expect(strings.Contains(err.Error(), "syntax error")).To(BeTrue())
_, err = db.Exec("SELECT 1")
Expect(err).NotTo(HaveOccurred())
}
})
})
Describe("Context", func() {
It("cancels query when context is cancelled", func() {
start := time.Now()
c, cancel := context.WithTimeout(context.Background(), time.Second)
defer cancel()
_, err := db.ExecContext(c, "SELECT pg_sleep(5)")
Expect(err).To(HaveOccurred())
Expect(time.Since(start)).To(BeNumerically("~", time.Second, 100*time.Millisecond))
})
})
})
var _ = Describe("DB.Conn", func() {
var db *pg.DB
BeforeEach(func() {
db = pg.Connect(pgOptions())
})
AfterEach(func() {
Expect(db.Close()).NotTo(HaveOccurred())
})
It("does not acquire connection immediately", func() {
conn := db.Conn()
stats := db.PoolStats()
Expect(stats.TotalConns).To(Equal(uint32(0)))
err := conn.Close()
Expect(err).NotTo(HaveOccurred())
})
It("acquires connection when used and frees when closed", func() {
conn := db.Conn()
_, err := conn.Exec("SELECT 1")
Expect(err).NotTo(HaveOccurred())
stats := db.PoolStats()
Expect(stats.TotalConns).To(Equal(uint32(1)))
Expect(stats.IdleConns).To(Equal(uint32(0)))
err = conn.Close()
Expect(err).NotTo(HaveOccurred())
stats = db.PoolStats()
Expect(stats.TotalConns).To(Equal(uint32(1)))
Expect(stats.IdleConns).To(Equal(uint32(1)))
})
It("supports Tx", func() {
conn := db.Conn()
tx, err := conn.Begin()
Expect(err).NotTo(HaveOccurred())
_, err = tx.Exec("SELECT 1")
Expect(err).NotTo(HaveOccurred())
_, err = conn.Exec("SELECT 1")
Expect(err).NotTo(HaveOccurred())
err = tx.Commit()
Expect(err).NotTo(HaveOccurred())
_, err = conn.Exec("SELECT 1")
Expect(err).NotTo(HaveOccurred())
err = conn.Close()
Expect(err).NotTo(HaveOccurred())
stats := db.PoolStats()
Expect(stats.TotalConns).To(Equal(uint32(1)))
Expect(stats.IdleConns).To(Equal(uint32(1)))
})
})
var _ = Describe("Time", func() {
tests := []struct {
str string
wanted time.Time
}{
{"0001-01-01 00:00:00+00", time.Time{}},
{"0000-01-01 00:00:00+00", time.Date(0, time.January, 1, 0, 0, 0, 0, time.UTC)},
{"2001-02-03", time.Date(2001, time.February, 3, 0, 0, 0, 0, time.UTC)},
{"2001-02-03 04:05:06", time.Date(2001, time.February, 3, 4, 5, 6, 0, time.UTC)},
{"2001-02-03 04:05:06.000001", time.Date(2001, time.February, 3, 4, 5, 6, 1000, time.UTC)},
{"2001-02-03 04:05:06.00001", time.Date(2001, time.February, 3, 4, 5, 6, 10000, time.UTC)},
{"2001-02-03 04:05:06.0001", time.Date(2001, time.February, 3, 4, 5, 6, 100000, time.UTC)},
{"2001-02-03 04:05:06.001", time.Date(2001, time.February, 3, 4, 5, 6, 1000000, time.UTC)},
{"2001-02-03 04:05:06.01", time.Date(2001, time.February, 3, 4, 5, 6, 10000000, time.UTC)},
{"2001-02-03 04:05:06.1", time.Date(2001, time.February, 3, 4, 5, 6, 100000000, time.UTC)},
{"2001-02-03 04:05:06.12", time.Date(2001, time.February, 3, 4, 5, 6, 120000000, time.UTC)},
{"2001-02-03 04:05:06.123", time.Date(2001, time.February, 3, 4, 5, 6, 123000000, time.UTC)},
{"2001-02-03 04:05:06.1234", time.Date(2001, time.February, 3, 4, 5, 6, 123400000, time.UTC)},
{"2001-02-03 04:05:06.12345", time.Date(2001, time.February, 3, 4, 5, 6, 123450000, time.UTC)},
{"2001-02-03 04:05:06.123456", time.Date(2001, time.February, 3, 4, 5, 6, 123456000, time.UTC)},
{"2001-02-03 04:05:06.123-07", time.Date(2001, time.February, 3, 4, 5, 6, 123000000, time.FixedZone("", -7*60*60))},
{"2001-02-03 04:05:06-07", time.Date(2001, time.February, 3, 4, 5, 6, 0, time.FixedZone("", -7*60*60))},
{"2001-02-03 04:05:06-07:42", time.Date(2001, time.February, 3, 4, 5, 6, 0, time.FixedZone("", -(7*60*60+42*60)))},
{"2001-02-03 04:05:06-07:30:09", time.Date(2001, time.February, 3, 4, 5, 6, 0, time.FixedZone("", -(7*60*60+30*60+9)))},
{"2001-02-03 04:05:06+07", time.Date(2001, time.February, 3, 4, 5, 6, 0, time.FixedZone("", 7*60*60))},
}
var db *pg.DB
BeforeEach(func() {
db = pg.Connect(pgOptions())
})
AfterEach(func() {
Expect(db.Close()).NotTo(HaveOccurred())
})
It("is formatted correctly", func() {
for i, test := range tests {
var tm time.Time
_, err := db.QueryOne(pg.Scan(&tm), "SELECT ?", test.wanted)
Expect(err).NotTo(HaveOccurred())
Expect(tm.Unix()).To(
Equal(test.wanted.Unix()),
"#%d str=%q wanted=%q", i, test.str, test.wanted,
)
}
})
It("is parsed correctly", func() {
for i, test := range tests {
var tm time.Time
_, err := db.QueryOne(pg.Scan(&tm), "SELECT ?", test.str)
Expect(err).NotTo(HaveOccurred())
Expect(tm.Unix()).To(
Equal(test.wanted.Unix()),
"#%d str=%q wanted=%q", i, test.str, test.wanted,
)
}
})
})
var _ = Describe("array model", func() {
type value struct {
Values []int16 `pg:",array"`
}
var db *pg.DB
BeforeEach(func() {
db = pg.Connect(pgOptions())
})
AfterEach(func() {
Expect(db.Close()).NotTo(HaveOccurred())
})
It("selects values", func() {
model := new(value)
_, err := db.QueryOne(model, "SELECT ? AS values", pg.Array([]int16{1, 2}))
Expect(err).NotTo(HaveOccurred())
Expect(model.Values).To(Equal([]int16{1, 2}))
})
It("selects empty values", func() {
model := &value{
Values: []int16{1, 2},
}
_, err := db.QueryOne(model, "SELECT ? AS values", pg.Array([]int16{}))
Expect(err).NotTo(HaveOccurred())
Expect(model.Values).To(BeEmpty())
})
It("selects null values", func() {
model := &value{
Values: []int16{1, 2},
}
_, err := db.QueryOne(model, "SELECT NULL AS values", pg.Array([]int16{}))
Expect(err).NotTo(HaveOccurred())
Expect(model.Values).To(BeEmpty())
})
})
var _ = Describe("slice model", func() {
type value struct {
Id int
}
var db *pg.DB
BeforeEach(func() {
db = pg.Connect(pgOptions())
})
AfterEach(func() {
Expect(db.Close()).NotTo(HaveOccurred())
})
It("does not error when there are no rows", func() {
ints := make([]int, 1)
_, err := db.Query(&ints, "SELECT generate_series(1, 0)")
Expect(err).NotTo(HaveOccurred())
Expect(ints).To(BeEmpty())
})
It("does not error when there are no rows", func() {
slice := make([]value, 1)
_, err := db.Query(&slice, "SELECT generate_series(1, 0)")
Expect(err).NotTo(HaveOccurred())
Expect(slice).To(BeEmpty())
})
It("does not error when there are no rows", func() {
slice := make([]*value, 1)
_, err := db.Query(&slice, "SELECT generate_series(1, 0)")
Expect(err).NotTo(HaveOccurred())
Expect(slice).To(BeEmpty())
})
It("supports slice of structs", func() {
var slice []value
_, err := db.Query(&slice, `SELECT generate_series(1, 3) AS id`)
Expect(err).NotTo(HaveOccurred())
Expect(slice).To(Equal([]value{{1}, {2}, {3}}))
})
It("supports slice of pointers", func() {
var slice []*value
_, err := db.Query(&slice, `SELECT generate_series(1, 3) AS id`)
Expect(err).NotTo(HaveOccurred())
Expect(slice).To(Equal([]*value{{1}, {2}, {3}}))
})
It("supports Ints", func() {
var ints pg.Ints
_, err := db.Query(&ints, `SELECT generate_series(1, 3)`)
Expect(err).NotTo(HaveOccurred())
Expect(ints).To(Equal(pg.Ints{1, 2, 3}))
})
It("supports slice of ints", func() {
var ints []int
_, err := db.Query(&ints, `SELECT generate_series(1, 3)`)
Expect(err).NotTo(HaveOccurred())
Expect(ints).To(Equal([]int{1, 2, 3}))
})
It("supports slice of time.Time", func() {
var times []time.Time
_, err := db.Query(×, `
WITH data (time) AS (VALUES (clock_timestamp()), (clock_timestamp()))
SELECT time FROM data
`)
Expect(err).NotTo(HaveOccurred())
Expect(times).To(HaveLen(2))
})
It("resets slice", func() {
ints := []int{1, 2, 3}
_, err := db.Query(&ints, `SELECT 1`)
Expect(err).NotTo(HaveOccurred())
Expect(ints).To(Equal([]int{1}))
})
It("resets slice when there are no results", func() {
ints := []int{1, 2, 3}
_, err := db.Query(&ints, `SELECT 1 WHERE FALSE`)
Expect(err).NotTo(HaveOccurred())
Expect(ints).To(BeEmpty())
})
})
var _ = Describe("read/write timeout", func() {
var db *pg.DB
BeforeEach(func() {
opt := pgOptions()
opt.ReadTimeout = time.Millisecond
db = pg.Connect(opt)
})
AfterEach(func() {
Expect(db.Close()).NotTo(HaveOccurred())
})
It("slow query timeouts", func() {
_, err := db.Exec(`SELECT pg_sleep(1)`)
Expect(err.(net.Error).Timeout()).To(BeTrue())
})
Context("WithTimeout", func() {
It("slow query passes", func() {
_, err := db.WithTimeout(time.Minute).Exec(`SELECT pg_sleep(1)`)
Expect(err).NotTo(HaveOccurred())
})
})
})
var _ = Describe("CopyFrom/CopyTo", func() {
const n = 1000000
var db *pg.DB
BeforeEach(func() {
db = pg.Connect(pgOptions())
qs := []string{
"CREATE TEMP TABLE copy_src(n int)",
"CREATE TEMP TABLE copy_dst(n int)",
fmt.Sprintf("INSERT INTO copy_src SELECT generate_series(1, %d)", n),
}
for _, q := range qs {
_, err := db.Exec(q)
Expect(err).NotTo(HaveOccurred())
}
})
AfterEach(func() {
err := db.Close()
Expect(err).NotTo(HaveOccurred())
})
It("copies data from a table and to a table", func() {
var buf bytes.Buffer
res, err := db.CopyTo(&buf, "COPY copy_src TO STDOUT")
Expect(err).NotTo(HaveOccurred())
Expect(res.RowsAffected()).To(Equal(n))
res, err = db.CopyFrom(&buf, "COPY copy_dst FROM STDIN")
Expect(err).NotTo(HaveOccurred())
Expect(res.RowsAffected()).To(Equal(n))
st := db.PoolStats()
Expect(st.Hits).To(Equal(uint32(4)))
Expect(st.Misses).To(Equal(uint32(1)))
Expect(st.Timeouts).To(Equal(uint32(0)))
Expect(st.TotalConns).To(Equal(uint32(1)))
Expect(st.IdleConns).To(Equal(uint32(1)))
var count int
_, err = db.QueryOne(pg.Scan(&count), "SELECT count(*) FROM copy_dst")
Expect(err).NotTo(HaveOccurred())
Expect(count).To(Equal(n))
})
It("copies corrupted data to a table", func() {
buf := bytes.NewBufferString("corrupted,data\nrow,two\r\nrow three")
res, err := db.CopyFrom(buf, "COPY copy_dst FROM STDIN WITH FORMAT csv")
Expect(err).To(MatchError(`ERROR #42601 syntax error at or near "FORMAT"`))
Expect(res).To(BeNil())
st := db.Pool().Stats()
Expect(st.Hits).To(Equal(uint32(3)))
Expect(st.Misses).To(Equal(uint32(1)))
Expect(st.Timeouts).To(Equal(uint32(0)))
Expect(st.TotalConns).To(Equal(uint32(1)))
Expect(st.IdleConns).To(Equal(uint32(1)))
var count int
_, err = db.QueryOne(pg.Scan(&count), "SELECT count(*) FROM copy_dst")
Expect(err).NotTo(HaveOccurred())
Expect(count).To(Equal(0))
})
})
var _ = Describe("CountEstimate", func() {
var db *pg.DB
BeforeEach(func() {
db = pg.Connect(pgOptions())
})
AfterEach(func() {
Expect(db.Close()).NotTo(HaveOccurred())
})
It("works", func() {
count, err := db.Model().
TableExpr("generate_series(1, 10)").
CountEstimate(1000)
Expect(err).NotTo(HaveOccurred())
Expect(count).To(Equal(10))
})
It("works when there are no results", func() {
count, err := db.Model().
TableExpr("generate_series(1, 0)").
CountEstimate(1000)
Expect(err).NotTo(HaveOccurred())
Expect(count).To(Equal(0))
})
It("works with GROUP", func() {
count, err := db.Model().
TableExpr("generate_series(1, 10)").
Group("generate_series").
CountEstimate(1000)
Expect(err).NotTo(HaveOccurred())
Expect(count).To(Equal(10))
})
It("works with GROUP when there are no results", func() {
count, err := db.Model().
TableExpr("generate_series(1, 0)").
Group("generate_series").
CountEstimate(1000)
Expect(err).NotTo(HaveOccurred())
Expect(count).To(Equal(0))
})
})
var _ = Describe("DB nulls", func() {
var db *pg.DB
BeforeEach(func() {
db = pg.Connect(pgOptions())
_, err := db.Exec("CREATE TEMP TABLE tests (id int, value int)")
Expect(err).To(BeNil())
})
AfterEach(func() {
Expect(db.Close()).NotTo(HaveOccurred())
})
Describe("sql.NullInt64", func() {
type Test struct {
ID int
Value sql.NullInt64
}
It("inserts null value", func() {
ins := &Test{
ID: 1,
}
_, err := db.Model(ins).Insert(ins)
Expect(err).NotTo(HaveOccurred())
sel := &Test{
ID: 1,
}
err = db.Model(sel).WherePK().Select()
Expect(err).NotTo(HaveOccurred())
Expect(sel.Value.Valid).To(BeFalse())
})
It("inserts non-null value", func() {
ins := &Test{
ID: 1,
Value: sql.NullInt64{
Int64: 2,
Valid: true,
},
}
_, err := db.Model(ins).Insert()
Expect(err).NotTo(HaveOccurred())
sel := &Test{
ID: 1,
}
err = db.Model(sel).WherePK().Select()
Expect(err).NotTo(HaveOccurred())
Expect(sel.Value.Valid).To(BeTrue())
Expect(sel.Value.Int64).To(Equal(int64(2)))
})
})
Context("nil ptr", func() {
type Test struct {
ID int
Value *int
}
It("inserts null value", func() {
ins := &Test{
ID: 1,
}
_, err := db.Model(ins).Insert()
Expect(err).NotTo(HaveOccurred())
sel := &Test{
ID: 1,
}
err = db.Model(sel).WherePK().Select()
Expect(err).NotTo(HaveOccurred())
Expect(sel.Value).To(BeNil())
})
It("inserts non-null value", func() {
value := 2
ins := &Test{
ID: 1,
Value: &value,
}
_, err := db.Model(ins).Insert()
Expect(err).NotTo(HaveOccurred())
sel := &Test{
ID: 1,
}
err = db.Model(sel).WherePK().Select()
Expect(err).NotTo(HaveOccurred())
Expect(sel.Value).NotTo(BeNil())
Expect(*sel.Value).To(Equal(2))
})
})
})
var _ = Describe("DB.Select", func() {
var db *pg.DB
BeforeEach(func() {
db = pg.Connect(pgOptions())
})
AfterEach(func() {
Expect(db.Close()).NotTo(HaveOccurred())
})
It("selects bytea", func() {
qs := []string{
`CREATE TEMP TABLE tests (col bytea)`,
fmt.Sprintf(`INSERT INTO tests VALUES ('\x%x')`, []byte("bytes")),
}
for _, q := range qs {
_, err := db.Exec(q)
Expect(err).NotTo(HaveOccurred())
}
var col []byte
err := db.Model().Table("tests").Column("col").Select(pg.Scan(&col))
Expect(err).NotTo(HaveOccurred())
})
It("selects into embedded struct pointer", func() {
type One struct {
ID int
}
type Two struct {
*One
}
err := db.Model((*Two)(nil)).CreateTable(&orm.CreateTableOptions{
Temp: true,
})
Expect(err).NotTo(HaveOccurred())
_, err = db.Model(&Two{
One: &One{
ID: 1,
},
}).Insert()
Expect(err).NotTo(HaveOccurred())
two := new(Two)
err = db.Model(two).Where("id = 1").Select()
Expect(err).NotTo(HaveOccurred())
Expect(two.One.ID).To(Equal(1))
})
})
var _ = Describe("DB.Insert", func() {
var db *pg.DB
BeforeEach(func() {
db = pg.Connect(pgOptions())
})
AfterEach(func() {
Expect(db.Close()).NotTo(HaveOccurred())
})
It("returns an error on nil", func() {
_, err := db.Model(nil).Insert()
Expect(err).To(MatchError("pg: Model(nil)"))
})
It("returns an error if value is not settable", func() {
_, err := db.Model(1).Insert()
Expect(err).To(MatchError("pg: Model(non-pointer int)"))
})
It("returns an error if value is not supported", func() {
var v int
_, err := db.Model(&v).Insert()
Expect(err).To(MatchError("pg: Model(unsupported *int)"))
})
})
var _ = Describe("DB.Update", func() {
var db *pg.DB
BeforeEach(func() {
db = pg.Connect(pgOptions())
})
AfterEach(func() {
Expect(db.Close()).NotTo(HaveOccurred())
})
It("returns an error on nil", func() {
_, err := db.Model(nil).Update()
Expect(err).To(MatchError("pg: Model(nil)"))
})
It("returns an error if there are no pks", func() {
type Test struct{}
var test Test
_, err := db.Model(&test).WherePK().Update()
Expect(err).To(MatchError(`pg: model=Test does not have primary keys`))