micro-tests/wrapper/sql/wrapper_test.go

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package wrapper_test
import (
"bytes"
"context"
"database/sql"
"testing"
"time"
"github.com/jmoiron/sqlx"
vmeter "go.unistack.org/micro-meter-victoriametrics/v3"
wrapper "go.unistack.org/micro-wrapper-sql/v3"
"go.unistack.org/micro/v3/meter"
"modernc.org/sqlite"
)
var schema = `
CREATE TABLE IF NOT EXISTS person (
first_name text,
last_name text,
email text
);`
type Person struct {
FirstName string `db:"first_name"`
LastName string `db:"last_name"`
Email string `db:"email"`
}
func TestWrapper(t *testing.T) {
wrapper.DefaultMeterStatsInterval = 100 * time.Millisecond
meter.DefaultMeter = vmeter.NewMeter()
sql.Register("micro-wrapper-sql", wrapper.NewWrapper(&sqlite.Driver{}))
wdb, err := sql.Open("micro-wrapper-sql", ":memory:")
if err != nil {
t.Fatal(err)
}
db := sqlx.NewDb(wdb, "sqlite")
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
wrapper.NewStatsMeter(ctx, db, wrapper.DatabaseHost("localhost"), wrapper.DatabaseName("memory"))
if _, err := db.Exec(schema); err != nil {
t.Fatal(err)
}
tx, err := db.BeginTxx(ctx, nil)
if err != nil {
t.Fatal(err)
}
if _, err := tx.NamedExec("INSERT OR REPLACE INTO person (first_name, last_name, email) VALUES (:first_name, :last_name, :email)", &Person{"Fist1", "Last1", "Email1"}); err != nil {
t.Fatal(err)
}
if _, err := tx.NamedExec("INSERT OR REPLACE INTO person (first_name, last_name, email) VALUES (:first_name, :last_name, :email)", &Person{"Fist2", "Last2", "Email2"}); err != nil {
t.Fatal(err)
}
if err := tx.Commit(); err != nil {
t.Fatal(err)
}
var peoples []*Person
if err := sqlx.SelectContext(ctx, db, &peoples, "SELECT * FROM person limit 2"); err != nil {
t.Fatal(err)
}
_ = peoples
time.Sleep(1 * time.Second)
buf := bytes.NewBuffer(nil)
_ = meter.DefaultMeter.Write(buf, meter.WriteProcessMetrics(true))
if !bytes.Contains(buf.Bytes(), []byte(`micro_sql_idle_connections`)) {
t.Fatalf("micro-wrapper-sql output contains invalid output: %s", buf.Bytes())
}
}