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request_float_test.go
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request_float_test.go
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package go_ora_test
import (
"database/sql"
"fmt"
"log"
"math"
"os"
"testing"
_ "github.com/sijms/go-ora"
"github.com/sijms/go-ora/converters"
)
var conn *sql.DB
func TestMain(m *testing.M) {
var err error
connStr := os.Getenv("GOORA_TESTDB")
if connStr == "" {
log.Fatal(fmt.Errorf("Provide oracle server url in environment variable GOORA_TESTDB"))
}
conn, err = sql.Open("oracle", connStr)
if err != nil {
log.Fatal("cannot connect to db:", err)
}
rc := m.Run()
conn.Close()
os.Exit(rc)
}
func TestSelectBindFloat(t *testing.T) {
for _, tt := range converters.TestFloatValue {
t.Run(tt.SelectText, func(t *testing.T) {
query := fmt.Sprintf("select :1 N from dual")
stmt, err := conn.Prepare(query)
if err != nil {
t.Errorf("Query can't be prepared: %s", err)
return
}
defer stmt.Close()
rows, err := stmt.Query(tt.Float)
if err != nil {
t.Errorf("Query can't be run: %s", err)
return
}
defer rows.Close()
if !rows.Next() {
t.Errorf("Query returns no record")
return
}
var (
got float64
)
err = rows.Scan(&got)
if err != nil {
t.Errorf("Query can't scan row: %s", err)
return
}
var e float64
if tt.Float != 0.0 {
e = math.Abs((got - tt.Float) / tt.Float)
} else {
e = math.Abs(got - tt.Float)
}
if e > 1e-15 {
t.Errorf("Query expecting: %v, got %v, error %g", tt.Float, got, e)
}
})
}
}
func TestSelectBindInt(t *testing.T) {
for _, tt := range converters.TestFloatValue {
if tt.IsInteger {
t.Run(tt.SelectText, func(t *testing.T) {
query := fmt.Sprintf("select :1 N from dual")
stmt, err := conn.Prepare(query)
if err != nil {
t.Errorf("Query can't be prepared: %s", err)
return
}
defer stmt.Close()
rows, err := stmt.Query(tt.Integer)
if err != nil {
t.Errorf("Query can't be run: %s", err)
return
}
defer rows.Close()
if !rows.Next() {
t.Errorf("Query returns no record")
return
}
var (
got int64
)
err = rows.Scan(&got)
if err != nil {
t.Errorf("Query can't scan row: %s", err)
return
}
if got != tt.Integer {
t.Errorf("Query expecting: %v, got %v", tt.Integer, got)
}
})
}
}
}
func TestSelectBindFloatAsInt(t *testing.T) {
for _, tt := range converters.TestFloatValue {
t.Run(tt.SelectText, func(t *testing.T) {
query := fmt.Sprintf("select :1 N from dual")
stmt, err := conn.Prepare(query)
if err != nil {
t.Errorf("Query can't be prepared: %s", err)
return
}
defer stmt.Close()
rows, err := stmt.Query(tt.Float)
if err != nil {
t.Errorf("Query can't be run: %s", err)
return
}
defer rows.Close()
if !rows.Next() {
t.Errorf("Query returns no record")
return
}
var (
got int64
)
err = rows.Scan(&got)
if err == nil && !tt.IsInteger {
t.Errorf("Expecting an error when scanning a real float(%v) into an int", tt.Float)
return
}
if err != nil && tt.IsInteger {
t.Errorf("Un-expecting an error when scanning a int as a float(%v) into an int, err:%s", tt.Float, err)
return
}
if err != nil {
return
}
if got != tt.Integer {
t.Errorf("Expecting: int64(%v), got int64(%v),%v", int64(float64(tt.Integer)), got, tt.Float)
}
})
}
}
func TestSelectBindIntAsFloat(t *testing.T) {
for _, tt := range converters.TestFloatValue {
if tt.IsInteger {
t.Run(tt.SelectText, func(t *testing.T) {
query := fmt.Sprintf("select :1 N from dual")
stmt, err := conn.Prepare(query)
if err != nil {
t.Errorf("Query can't be prepared: %s", err)
return
}
defer stmt.Close()
rows, err := stmt.Query(tt.Integer)
if err != nil {
t.Errorf("Query can't be run: %s", err)
return
}
defer rows.Close()
if !rows.Next() {
t.Errorf("Query returns no record")
return
}
var (
got float64
)
err = rows.Scan(&got)
if err == nil && !tt.IsInteger {
t.Errorf("Expecting an error when scanning a real float(%v) into an int", tt.Float)
return
}
if tt.Float != 0.0 {
e := math.Abs((got - tt.Float) / tt.Float)
if e > 1e-15 {
t.Errorf("DecodeDouble(EncodeDouble(%g)) = %g, Diff= %e", tt.Float, got, e)
}
} else if got != 0.0 {
t.Errorf("DecodeDouble(EncodeDouble(%g)) = %g", tt.Float, got)
}
})
}
}
}