evcc-io/core/loadpoint_session_test.go
andig 7a5b1e7560
api: split MeterEnergy into MeterImport and MeterExport (#29788)
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-09 16:20:18 +02:00

345 lines
8.6 KiB
Go

package core
import (
"testing"
"time"
"github.com/benbjohnson/clock"
"github.com/evcc-io/evcc/api"
"github.com/evcc-io/evcc/core/session"
serverdb "github.com/evcc-io/evcc/server/db"
"github.com/evcc-io/evcc/util"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.uber.org/mock/gomock"
)
func sessionStart(lp *Loadpoint) func(session *session.Session) {
return func(session *session.Session) {
if session.Created.IsZero() {
session.Created = lp.clock.Now()
}
}
}
func TestSession(t *testing.T) {
var err error
serverdb.Instance, err = serverdb.New("sqlite", ":memory:")
require.NoError(t, err)
db, err := session.NewStore("foo", serverdb.Instance)
require.NoError(t, err)
clock := clock.NewMock()
ctrl := gomock.NewController(t)
defer ctrl.Finish()
mm := api.NewMockMeter(ctrl)
me := api.NewMockMeterImport(ctrl)
type EnergyDecorator struct {
api.Meter
api.MeterImport
}
cm := &EnergyDecorator{Meter: mm, MeterImport: me}
lp := &Loadpoint{
log: util.NewLogger("foo"),
clock: clock,
db: db,
chargeMeter: cm,
}
// create session
me.EXPECT().ImportEnergy().Return(1.0, nil)
lp.createSession()
assert.NotNil(t, lp.session)
// start charging
lp.updateSession(sessionStart(lp))
assert.Equal(t, clock.Now(), lp.session.Created)
// stop charging
clock.Add(time.Hour)
lp.energyMetrics.Update(1.23)
me.EXPECT().ImportEnergy().Return(1.0+lp.getChargedEnergy()/1e3, nil) // match chargedEnergy
lp.stopSession()
assert.NotNil(t, lp.session)
assert.Equal(t, lp.getChargedEnergy()/1e3, lp.session.ChargedEnergy)
assert.Equal(t, clock.Now(), lp.session.Finished)
s, err := db.Sessions()
require.NoError(t, err)
assert.Len(t, s, 1)
t.Logf("session: %+v", s)
// stop charging - 2nd leg
clock.Add(time.Hour)
lp.energyMetrics.Update(lp.getChargedEnergy() * 2)
me.EXPECT().ImportEnergy().Return(3.0, nil) // doesn't match chargedEnergy
lp.stopSession()
assert.NotNil(t, lp.session)
assert.Equal(t, clock.Now(), lp.session.Finished)
s, err = db.Sessions()
require.NoError(t, err)
assert.Len(t, s, 1)
t.Logf("session: %+v", s)
}
func TestCloseSessionsOnStartup_emptyDb(t *testing.T) {
var err error
serverdb.Instance, err = serverdb.New("sqlite", ":memory:")
require.NoError(t, err)
db, err := session.NewStore("foo", serverdb.Instance)
require.NoError(t, err)
// assert empty DB is no problem
err = db.ClosePendingSessionsInHistory(1000)
require.NoError(t, err)
}
func TestCloseSessionsOnStartup(t *testing.T) {
var err error
serverdb.Instance, err = serverdb.New("sqlite", ":memory:")
require.NoError(t, err)
db1, err := session.NewStore("foo", serverdb.Instance)
require.NoError(t, err)
db2, err := session.NewStore("bar", serverdb.Instance)
require.NoError(t, err)
clock := clock.NewMock()
// test data, creates 6 sessions for each loadpoint, 3rd and 6th are "unfinished"
sessions1 := createMockSessions(db1, clock)
sessions2 := createMockSessions(db2, clock)
// write interleaved for two loadpoints
for index, session := range sessions1 {
db1.Persist(session)
db2.Persist(sessions2[index])
}
err = db1.ClosePendingSessionsInHistory(1000)
require.NoError(t, err)
// check fixed sessions for db1
var db1Sessions session.Sessions
err = serverdb.Instance.Where("Loadpoint = ?", "foo").Order("ID").Find(&db1Sessions).Error
require.NoError(t, err)
assert.Len(t, db1Sessions, 6)
// check fixed history
for _, s := range db1Sessions[:5] {
assert.NotEmpty(t, s.MeterStop)
assert.Equal(t, float64(10), s.ChargedEnergy)
t.Logf("session: %+v", s)
}
// check fixed most recent record
assert.NotEmpty(t, db1Sessions[5].MeterStop)
assert.Equal(t, float64(940), db1Sessions[5].ChargedEnergy)
// ensure no side effects on loadpoint 2 data, i.e. data left unfixed
var db2Sessions session.Sessions
err = serverdb.Instance.Where("Loadpoint = ?", "bar").Order("ID").Find(&db2Sessions).Error
require.NoError(t, err)
assert.Len(t, db2Sessions, 6)
for i, s := range db2Sessions {
if (i+1)%3 == 0 {
assert.Empty(t, s.MeterStop)
assert.Empty(t, s.ChargedEnergy)
continue
}
assert.NotEmpty(t, s.MeterStop)
assert.Equal(t, float64(10), s.ChargedEnergy)
}
}
func createMockSessions(db *session.DB, clock *clock.Mock) []*session.Session {
var sessions []*session.Session
for i := 1; i <= 6; i++ {
meter1Start := float64(i * 10)
session := db.New(meter1Start)
session.Created = clock.Now().Add(1 * time.Minute)
// create every third session as incomplete
if i%3 == 0 {
sessions = append(sessions, session)
continue
}
session.Finished = clock.Now().Add(2 * time.Minute)
meterStop := meter1Start + 10
session.MeterStop = &meterStop
session.ChargedEnergy = 10
sessions = append(sessions, session)
}
return sessions
}
func TestResetHeatingSession(t *testing.T) {
var err error
serverdb.Instance, err = serverdb.New("sqlite", ":memory:")
require.NoError(t, err)
db, err := session.NewStore("foo", serverdb.Instance)
require.NoError(t, err)
clock := clock.NewMock()
ctrl := gomock.NewController(t)
defer ctrl.Finish()
cc := api.NewMockCharger(ctrl)
fd := api.NewMockFeatureDescriber(ctrl)
type FeatureDecorator struct {
api.Charger
api.FeatureDescriber
}
charger := &FeatureDecorator{Charger: cc, FeatureDescriber: fd}
fd.EXPECT().Features().AnyTimes().Return([]api.Feature{
api.Heating, api.IntegratedDevice,
})
mm := api.NewMockMeter(ctrl)
me := api.NewMockMeterImport(ctrl)
type EnergyDecorator struct {
api.Meter
api.MeterImport
}
cm := &EnergyDecorator{Meter: mm, MeterImport: me}
lp := &Loadpoint{
log: util.NewLogger("foo"),
clock: clock,
db: db,
charger: charger,
chargeMeter: cm,
}
// create session
me.EXPECT().ImportEnergy().Return(1.0, nil)
lp.createSession()
require.NotNil(t, lp.session)
assert.True(t, lp.session.Created.IsZero())
// actually mark session as started
lp.session.Created = clock.Now()
assert.Equal(t, clock.Now(), lp.session.Created)
clock.Add(36 * time.Hour)
me.EXPECT().ImportEnergy().Return(1.0, nil).MaxTimes(2)
lp.resetHeatingSession()
require.NotNil(t, lp.session)
assert.True(t, lp.session.Created.IsZero())
lp.updateSession(sessionStart(lp))
assert.Equal(t, clock.Now(), lp.session.Created)
me.EXPECT().ImportEnergy().Return(3.0, nil)
lp.stopSession()
assert.NotNil(t, lp.session)
assert.Equal(t, clock.Now(), lp.session.Finished)
assert.Equal(t, 1.0, *lp.session.MeterStart)
assert.Equal(t, 3.0, *lp.session.MeterStop)
}
func TestFinalizeSessionEnergy(t *testing.T) {
setup := func(t *testing.T) (*Loadpoint, *api.MockMeterImport, *api.MockChargeRater) {
t.Helper()
var err error
serverdb.Instance, err = serverdb.New("sqlite", ":memory:")
require.NoError(t, err)
db, err := session.NewStore("foo", serverdb.Instance)
require.NoError(t, err)
ctrl := gomock.NewController(t)
mm := api.NewMockMeter(ctrl)
me := api.NewMockMeterImport(ctrl)
rater := api.NewMockChargeRater(ctrl)
type EnergyDecorator struct {
api.Meter
api.MeterImport
}
cm := &EnergyDecorator{
Meter: mm,
MeterImport: me,
}
lp := &Loadpoint{
log: util.NewLogger("foo"),
clock: clock.NewMock(),
db: db,
chargeRater: rater,
chargeMeter: cm,
}
return lp, me, rater
}
t.Run("corrects session when ChargedEnergy increased", func(t *testing.T) {
lp, me, rater := setup(t)
me.EXPECT().ImportEnergy().Return(9157.3, nil)
lp.createSession()
lp.session.Created = lp.clock.Now()
lp.energyMetrics.Update(15.3)
me.EXPECT().ImportEnergy().Return(9164.0, nil)
lp.stopSession()
require.Equal(t, 15.3, lp.session.ChargedEnergy)
rater.EXPECT().ChargedEnergy().Return(16.2, nil)
me.EXPECT().ImportEnergy().Return(9173.5, nil)
lp.finalizeSessionEnergy()
assert.Equal(t, 16.2, lp.session.ChargedEnergy)
assert.Equal(t, 9173.5, *lp.session.MeterStop)
assert.Equal(t, 9157.3, *lp.session.MeterStart)
})
t.Run("no-op when ChargedEnergy unchanged", func(t *testing.T) {
lp, me, rater := setup(t)
me.EXPECT().ImportEnergy().Return(9154.4, nil)
lp.createSession()
lp.session.Created = lp.clock.Now()
lp.energyMetrics.Update(15.3)
me.EXPECT().ImportEnergy().Return(9164.0, nil)
lp.stopSession()
require.Equal(t, 15.3, lp.session.ChargedEnergy)
rater.EXPECT().ChargedEnergy().Return(15.3, nil)
lp.finalizeSessionEnergy()
assert.Equal(t, 15.3, lp.session.ChargedEnergy)
assert.Equal(t, 9164.0, *lp.session.MeterStop)
})
t.Run("no-op when session nil or uncreated", func(t *testing.T) {
lp, _, _ := setup(t)
lp.session = nil
assert.NotPanics(t, func() { lp.finalizeSessionEnergy() })
lp.session = &session.Session{}
assert.NotPanics(t, func() { lp.finalizeSessionEnergy() })
})
}