Support different Sensor update types

src/actors/polynomalactor.cpp

@@ -31,7 +31,7 @@ void PolynomalActor::getCoeffiancts( double& pow3, double& pow2, double& pow1, d
 	pow0=pow0_;
 }
 
-void PolynomalActor::sensorEvent(Sensor sensor)
+void PolynomalActor::sensorEvent(Sensor sensor, sensor_update_type_t type)
 {
 	if(active && sensor == sensor_)
 	{

src/actors/polynomalactor.h

@@ -18,7 +18,7 @@ private:
 
 public slots:
 
-	void sensorEvent(Sensor sensor);
+	void sensorEvent(Sensor sensor, sensor_update_type_t type);
 
 public:
 

src/actors/regulator.cpp

@@ -21,7 +21,7 @@ void Regulator::setSensor(const Sensor sensor)
 	sensor_ = sensor;
 }
 
-void Regulator::sensorEvent(Sensor sensor)
+void Regulator::sensorEvent(Sensor sensor, sensor_update_type_t type)
 {
 	if(active && sensor == sensor_)
 	{

src/actors/regulator.h

@@ -26,7 +26,7 @@ private slots:
 
 public slots:
 
-	void sensorEvent(Sensor sensor);
+	void sensorEvent(Sensor sensor, sensor_update_type_t type);
 
 	void setSensor(const Sensor sensor);
 	void setPoint(float setPoint );

src/actors/sensoractor.cpp

@@ -17,7 +17,7 @@ void SensorActor::setSensor(const Sensor sensor)
 	sensor_ = sensor;
 }
 
-void SensorActor::sensorEvent(Sensor sensor)
+void SensorActor::sensorEvent(Sensor sensor, sensor_update_type_t type)
 {
 	if(sensor == sensor_)
 	{

src/actors/sensoractor.h

@@ -18,7 +18,7 @@ private:
 
 public slots:
 
-	void sensorEvent(Sensor sensor);
+	void sensorEvent(Sensor sensor, sensor_update_type_t type);
 
 	void setSloap(uint8_t sloap);
 	void setSensor(const Sensor sensor);

src/items/poweritem.cpp

@@ -6,7 +6,7 @@
 PowerItem::PowerItem(uint32_t itemIdIn, QString name,  uint8_t value, QObject* parent):
 	Item(itemIdIn, name, value, parent)
 {
-	stateChanged(Sensor(Sensor::TYPE_SHUTDOWN_IMMINENT, 0, 0, "Shutdown Imminent", true));
+	stateChanged(Sensor(Sensor::TYPE_SHUTDOWN_IMMINENT, 0, 0, "Shutdown Imminent", true), SENSOR_UPDATE_BACKEND);
 	value_ = true;
 	hidden_ = true;
 	type_ = ITEM_VALUE_NO_VALUE;
@@ -18,7 +18,7 @@ void PowerItem::enactValue(uint8_t value)
 	{
 		qDebug()<<"shutdown";
 		QTimer::singleShot(5000, this, &PowerItem::timeout);
-		stateChanged(Sensor(Sensor::TYPE_SHUTDOWN_IMMINENT, 0, 1, "Shutdown Imminent", true));
+		stateChanged(Sensor(Sensor::TYPE_SHUTDOWN_IMMINENT, 0, 1, "Shutdown Imminent", true), SENSOR_UPDATE_BACKEND);
 	}
 }
 

src/items/poweritem.h

@@ -13,7 +13,7 @@ private:
 
 signals:
 
-	void stateChanged(Sensor sensor);
+	void stateChanged(Sensor sensor, sensor_update_type_t type = SENSOR_UPDATE_BACKEND);
 
 private slots:
 	void timeout();

src/mainobject.cpp

@@ -120,6 +120,7 @@ PrimaryMainObject::~PrimaryMainObject()
 void PrimaryMainObject::store(QJsonObject &json)
 {
 	globalItems.store(json);
+	globalSensors.store(json);
 	QJsonObject mqttJson = json["Mqtt"].toObject();
 	mqttClient->store(mqttJson);
 	mqttSensorSource.store(mqttJson);
@@ -130,6 +131,7 @@ void PrimaryMainObject::load(const QJsonObject& json)
 {
 	settings = json;
 	itemLoader.updateJson(json);
+	globalSensors.load(json);
 	globalItems.clear();
 	globalItems.refresh();
 }

src/microcontroller.cpp

@@ -190,7 +190,7 @@ void Microcontroller::processSensorState(const QString& buffer)
 {
 	Sensor sensor = Sensor::sensorFromString(buffer);
 	if(sensor.type != Sensor::TYPE_DUMMY)
-		gotSensorState(sensor);
+		gotSensorState(sensor, SENSOR_UPDATE_BACKEND);
 }
 
 

src/microcontroller.h

@@ -78,7 +78,7 @@ private slots:
 
 signals:
 	void textRecived(const QString string);
-	void gotSensorState(Sensor sensor);
+	void gotSensorState(Sensor sensor, sensor_update_type_t type = SENSOR_UPDATE_BACKEND);
 };
 
 #endif // MICROCONTROLLER_H

src/sensors/mqttsensorsource.cpp

@@ -39,6 +39,7 @@ MqttSensorSource::SensorSubscription& MqttSensorSource::findSubscription(const Q
 			return sensor;
 	}
 	assert(false);
+	return sensors.front();
 }
 
 void MqttSensorSource::onClientStateChanged(QMqttClient::ClientState state)
@@ -81,7 +82,7 @@ void MqttSensorSource::onMessageReceived(const QMqttMessage& message)
 			sensor.name = baseName + " Temperature";
 			sensor.type = Sensor::TYPE_TEMPERATURE;
 			sensor.field = obj["temperature"].toDouble(0);
-			stateChanged(sensor);
+			stateChanged(sensor, SENSOR_UPDATE_BACKEND);
 		}
 
 		if(obj.contains("local_temperature"))
@@ -89,7 +90,7 @@ void MqttSensorSource::onMessageReceived(const QMqttMessage& message)
 			sensor.name = baseName + " Temperature";
 			sensor.type = Sensor::TYPE_TEMPERATURE;
 			sensor.field = obj["local_temperature"].toDouble(0);
-			stateChanged(sensor);
+			stateChanged(sensor, SENSOR_UPDATE_BACKEND);
 		}
 
 		if(obj.contains("humidity"))
@@ -97,7 +98,7 @@ void MqttSensorSource::onMessageReceived(const QMqttMessage& message)
 			sensor.name = baseName + " Humidity";
 			sensor.type = Sensor::TYPE_HUMIDITY;
 			sensor.field = obj["humidity"].toDouble(0);
-			stateChanged(sensor);
+			stateChanged(sensor, SENSOR_UPDATE_BACKEND);
 		}
 
 		if(obj.contains("illuminance"))
@@ -105,7 +106,7 @@ void MqttSensorSource::onMessageReceived(const QMqttMessage& message)
 			sensor.name = baseName + " Illuminance";
 			sensor.type = Sensor::TYPE_BRIGHTNESS;
 			sensor.field = obj["illuminance"].toDouble(0);
-			stateChanged(sensor);
+			stateChanged(sensor, SENSOR_UPDATE_BACKEND);
 		}
 
 		if(obj.contains("presence"))
@@ -113,7 +114,7 @@ void MqttSensorSource::onMessageReceived(const QMqttMessage& message)
 			sensor.name = baseName + " Presence";
 			sensor.type = Sensor::TYPE_OCUPANCY;
 			sensor.field = obj["presence"].toBool() ? 1 : 0;
-			stateChanged(sensor);
+			stateChanged(sensor, SENSOR_UPDATE_BACKEND);
 		}
 
 		if(obj.contains("co2"))
@@ -121,7 +122,7 @@ void MqttSensorSource::onMessageReceived(const QMqttMessage& message)
 			sensor.name = baseName + " co2";
 			sensor.type = Sensor::TYPE_CO2;
 			sensor.field = obj["co2"].toDouble(0);
-			stateChanged(sensor);
+			stateChanged(sensor, SENSOR_UPDATE_BACKEND);
 		}
 
 		if(obj.contains("formaldehyd"))
@@ -129,7 +130,7 @@ void MqttSensorSource::onMessageReceived(const QMqttMessage& message)
 			sensor.name = baseName + " Formaldehyd";
 			sensor.type = Sensor::TYPE_FORMALDEHYD;
 			sensor.field = obj["formaldehyd"].toDouble(0);
-			stateChanged(sensor);
+			stateChanged(sensor, SENSOR_UPDATE_BACKEND);
 		}
 
 		if(obj.contains("pm25"))
@@ -137,7 +138,7 @@ void MqttSensorSource::onMessageReceived(const QMqttMessage& message)
 			sensor.name = baseName + " pm25";
 			sensor.type = Sensor::TYPE_PM25;
 			sensor.field = obj["pm25"].toDouble(0);
-			stateChanged(sensor);
+			stateChanged(sensor, SENSOR_UPDATE_BACKEND);
 		}
 
 		if(obj.contains("voc"))
@@ -145,7 +146,7 @@ void MqttSensorSource::onMessageReceived(const QMqttMessage& message)
 			sensor.name = baseName + " VOC";
 			sensor.type = Sensor::TYPE_TOTAL_VOC;
 			sensor.field = obj["voc"].toDouble(0);
-			stateChanged(sensor);
+			stateChanged(sensor, SENSOR_UPDATE_BACKEND);
 		}
 
 		if(obj.contains("power"))
@@ -153,7 +154,7 @@ void MqttSensorSource::onMessageReceived(const QMqttMessage& message)
 			sensor.name = baseName + " Power";
 			sensor.type = Sensor::TYPE_POWER;
 			sensor.field = obj["power"].toDouble(0);
-			stateChanged(sensor);
+			stateChanged(sensor, SENSOR_UPDATE_BACKEND);
 		}
 
 		if(obj.contains("energy"))
@@ -161,7 +162,7 @@ void MqttSensorSource::onMessageReceived(const QMqttMessage& message)
 			sensor.name = baseName + " Energy";
 			sensor.type = Sensor::TYPE_ENERGY_USE;
 			sensor.field = obj["energy"].toDouble(0);
-			stateChanged(sensor);
+			stateChanged(sensor, SENSOR_UPDATE_BACKEND);
 		}
 
 		if(obj.contains("voltage"))
@@ -169,7 +170,7 @@ void MqttSensorSource::onMessageReceived(const QMqttMessage& message)
 			sensor.name = baseName + " Voltage";
 			sensor.type = Sensor::TYPE_VOLTAGE;
 			sensor.field = obj["voltage"].toDouble(0);
-			stateChanged(sensor);
+			stateChanged(sensor, SENSOR_UPDATE_BACKEND);
 		}
 	}
 }

src/sensors/mqttsensorsource.h

@@ -38,7 +38,7 @@ public:
 	void store(QJsonObject& json);
 
 signals:
-	void stateChanged(Sensor sensor);
+	void stateChanged(Sensor sensor, sensor_update_type_t type = SENSOR_UPDATE_BACKEND);
 };
 
 #endif // MQTTSENSORSOURCE_H

src/sensors/sensor.cpp

@@ -1,6 +1,7 @@
 #include "sensor.h"
 
 #include <QDebug>
+#include <QJsonArray>
 
 SensorStore globalSensors;
 
@@ -10,9 +11,31 @@ SensorStore::SensorStore(QObject *parent): QObject(parent)
 	sensors_.push_back(Sensor(Sensor::TYPE_DOOR,0,0,"Bedroom door"));
 }
 
-void SensorStore::sensorGotState(const Sensor& sensor)
+void SensorStore::store(QJsonObject& json)
 {
-	bool exsisting = false;
+	QJsonArray sensorsArray;
+	for(const Sensor& sensor : sensors_)
+	{
+		QJsonObject sensorObject;
+		sensor.store(sensorObject);
+		sensorsArray.append(sensorObject);
+	}
+	json["Sensors"] = sensorsArray;
+}
+
+void SensorStore::load(const QJsonObject& json)
+{
+	knownSensors_.clear();
+	QJsonArray sensorsArray = json["Sensors"].toArray();
+	for(const QJsonValue& value : sensorsArray)
+	{
+		knownSensors_.push_back(Sensor(value.toObject()));
+	}
+}
+
+void SensorStore::sensorGotState(const Sensor& sensor, sensor_update_type_t type)
+{
+	bool inSensors = false;
 	for(unsigned i = 0; i < sensors_.size(); ++i)
 	{
 		if(sensor.type == sensors_[i].type && sensor.id == sensors_[i].id)
@@ -21,17 +44,43 @@ void SensorStore::sensorGotState(const Sensor& sensor)
 			if(sensors_[i].field != sensor.field)
 			{
 				sensors_[i].field = sensor.field;
-				sensorChangedState(sensor);
+				if(type == SENSOR_UPDATE_USER)
-				stateChenged(sensors_);
+				{
-			}
+					sensors_[i].name = sensor.name;
-			exsisting = true;
+					sensors_[i].hidden = sensor.hidden;
+					// Also update knownSensors_
+					for(Sensor& known : knownSensors_)
+					{
+						if(sensor.type == known.type && sensor.id == known.id)
+						{
+							known.name = sensor.name;
+							known.hidden = sensor.hidden;
 							break;
 						}
 					}
-	if(!exsisting)
+				}
+				sensorChangedState(sensors_[i], type);
+				stateChenged(sensors_);
+			}
+			inSensors = true;
+			break;
+		}
+	}
+	if(!inSensors)
 	{
-		sensors_.push_back(sensor);
+		Sensor newSensor = sensor;
-		sensorChangedState(sensor);
+		// Check knownSensors_ for matching sensor to override name and hidden state
+		for(const Sensor& known : knownSensors_)
+		{
+			if(sensor.type == known.type && sensor.id == known.id)
+			{
+				newSensor.name = known.name;
+				newSensor.hidden = known.hidden;
+				break;
+			}
+		}
+		sensors_.push_back(newSensor);
+		sensorChangedState(newSensor, type);
 		stateChenged(sensors_);
 	}
 

src/sensors/sensor.h

@@ -98,7 +98,7 @@ public:
 			   QString::number((type == Sensor::TYPE_HUMIDITY ||  type == Sensor::TYPE_TEMPERATURE) ? field*10 : field) +
 			   " TIME: " + QString::number(lastSeen.toSecsSinceEpoch());
 	}
-	inline void store(QJsonObject& json)
+	inline void store(QJsonObject& json) const
 	{
 		json["Type"] = "Sensor";
 		json["SensorType"] = static_cast<int>(type);
@@ -127,7 +127,7 @@ public:
 			name = "Shutdown Imminent";
 		else name = "Sensor Type " + QString::number(type) + " Id " + QString::number(id);
 	}
-	QString getUnit()
+	QString getUnit() const
 	{
 		switch(type)
 		{
@@ -160,11 +160,19 @@ public:
 	}
 };
 
+typedef enum {
+	SENSOR_UPDATE_USER = 0,
+	SENSOR_UPDATE_BACKEND,
+	SENSOR_UPDATE_REMOTE,
+	SENSOR_UPDATE_INVALID
+} sensor_update_type_t;
+
 class SensorStore: public QObject
 {
 	Q_OBJECT
 private:
 	std::vector<Sensor> sensors_;
+	std::vector<Sensor> knownSensors_;
 
 public:
 
@@ -176,15 +184,17 @@ public:
 		return &sensors_;
 	}
 
+	void store(QJsonObject& json);
+	void load(const QJsonObject& json);
 
 public slots:
 
-	void sensorGotState(const Sensor& sensor);
+	void sensorGotState(const Sensor& sensor, sensor_update_type_t type = SENSOR_UPDATE_BACKEND);
 
 signals:
 
 	void stateChenged(std::vector<Sensor> sensors);
-	void sensorChangedState(Sensor sensor);
+	void sensorChangedState(Sensor sensor, sensor_update_type_t type);
 	void sensorDeleted(Sensor sensor);
 
 };

src/sensors/sunsensor.cpp

@@ -21,5 +21,5 @@ void SunSensorSource::abort()
 
 void SunSensorSource::doTick()
 {
-	stateChanged(Sensor(Sensor::TYPE_SUN_ALTITUDE, 0, static_cast<float>(sun_.altitude())));
+	stateChanged(Sensor(Sensor::TYPE_SUN_ALTITUDE, 0, static_cast<float>(sun_.altitude())), SENSOR_UPDATE_BACKEND);
 }

src/sensors/sunsensor.h

@@ -22,7 +22,7 @@ public slots:
 	void abort();
 
 signals:
-	void stateChanged(Sensor sensor);
+	void stateChanged(Sensor sensor, sensor_update_type_t type = SENSOR_UPDATE_BACKEND);
 
 private slots:
 	void doTick();

src/service/service.cpp

@@ -19,7 +19,7 @@ QJsonObject Service::createMessage(const QString& type, const QJsonArray& data)
 	return json;
 }
 
-void Service::sensorEvent(Sensor sensor)
+void Service::sensorEvent(Sensor sensor, sensor_update_type_t type)
 {
 	QJsonArray sensors;
 	QJsonObject sensorjson;
@@ -85,7 +85,7 @@ void Service::processIncomeingJson(const QByteArray& jsonbytes)
 		{
 			QJsonObject jsonobject = sensorjson.toObject();
 			Sensor sensor(jsonobject);
-			gotSensor(sensor);
+			gotSensor(sensor, SENSOR_UPDATE_REMOTE);
 		}
 	}
 }

src/service/service.h

@@ -20,10 +20,10 @@ protected:
 	} client_state_t;
 
 signals:
-	void gotSensor(Sensor sensor);
+	void gotSensor(Sensor sensor, sensor_update_type_t type = SENSOR_UPDATE_BACKEND);
 
 public slots:
-	void sensorEvent(Sensor sensor);
+	void sensorEvent(Sensor sensor, sensor_update_type_t type);
 	virtual void itemUpdated(ItemUpdateRequest update);
 	virtual void refresh() override;
 

tests/unit/sensors/test_sensor.cpp

@@ -219,6 +219,161 @@ private slots:
         QVERIFY(audio.type == Sensor::TYPE_AUDIO_OUTPUT);
     }
 
+    void testSensorStoreUserUpdateUpdatesNameAndHidden()
+    {
+        // Create a SensorStore
+        SensorStore store;
+        store.getSensors()->clear();
+        
+        // Add initial sensor
+        Sensor initialSensor(Sensor::TYPE_TEMPERATURE, 1, 20.0, "Initial Name", false);
+        store.sensorGotState(initialSensor, SENSOR_UPDATE_BACKEND);
+        
+        // Verify initial state
+        std::vector<Sensor>* sensors = store.getSensors();
+        QVERIFY(sensors->size() == 1);
+        QVERIFY(sensors->at(0).name == "Initial Name");
+        QVERIFY(sensors->at(0).hidden == false);
+        
+        // Send USER update with new name and hidden state
+        Sensor userUpdate(Sensor::TYPE_TEMPERATURE, 1, 25.0, "New Name", true);
+        store.sensorGotState(userUpdate, SENSOR_UPDATE_USER);
+        
+        // Verify name and hidden were updated
+        QVERIFY(sensors->size() == 1);
+        QVERIFY(sensors->at(0).name == "New Name");
+        QVERIFY(sensors->at(0).hidden == true);
+        QVERIFY(sensors->at(0).field == 25.0);
+    }
+
+    void testSensorStoreNonUserUpdateIgnoresNameAndHidden()
+    {
+        // Create a SensorStore
+        SensorStore store;
+        store.getSensors()->clear();
+        
+        // Add initial sensor
+        Sensor initialSensor(Sensor::TYPE_TEMPERATURE, 1, 20.0, "Initial Name", false);
+        store.sensorGotState(initialSensor, SENSOR_UPDATE_BACKEND);
+        
+        // Verify initial state
+        std::vector<Sensor>* sensors = store.getSensors();
+        QVERIFY(sensors->size() == 1);
+        QVERIFY(sensors->at(0).name == "Initial Name");
+        QVERIFY(sensors->at(0).hidden == false);
+        
+        // Send BACKEND update with new name and hidden state
+        Sensor backendUpdate(Sensor::TYPE_TEMPERATURE, 1, 25.0, "Backend Name", true);
+        store.sensorGotState(backendUpdate, SENSOR_UPDATE_BACKEND);
+        
+        // Verify name and hidden were NOT updated
+        QVERIFY(sensors->size() == 1);
+        QVERIFY(sensors->at(0).name == "Initial Name");
+        QVERIFY(sensors->at(0).hidden == false);
+        QVERIFY(sensors->at(0).field == 25.0);
+    }
+
+    void testSensorStoreUserUpdateUpdatesKnownSensors()
+    {
+        // Create a SensorStore
+        SensorStore store;
+        store.getSensors()->clear();
+        
+        // Add initial sensor
+        Sensor initialSensor(Sensor::TYPE_TEMPERATURE, 1, 20.0, "Initial Name", false);
+        store.sensorGotState(initialSensor, SENSOR_UPDATE_BACKEND);
+        
+        // Send USER update with new name and hidden state
+        Sensor userUpdate(Sensor::TYPE_TEMPERATURE, 1, 25.0, "New Name", true);
+        store.sensorGotState(userUpdate, SENSOR_UPDATE_USER);
+        
+        // Store to JSON and reload
+        QJsonObject json;
+        store.store(json);
+        
+        SensorStore store2;
+        store2.getSensors()->clear();
+        store2.load(json);
+        
+        // Add the sensor again - should use the updated name from knownSensors_
+        Sensor newSensor(Sensor::TYPE_TEMPERATURE, 1, 30.0, "Original Name", false);
+        store2.sensorGotState(newSensor, SENSOR_UPDATE_BACKEND);
+        
+        // Verify the name was taken from knownSensors_
+        std::vector<Sensor>* sensors = store2.getSensors();
+        QVERIFY(sensors->size() == 1);
+        QVERIFY(sensors->at(0).name == "New Name");
+        QVERIFY(sensors->at(0).hidden == true);
+    }
+
+    void testSensorStoreNewSensorNotInKnownSensors()
+    {
+        // Create a SensorStore
+        SensorStore store;
+        store.getSensors()->clear();
+        
+        // Add a new sensor (not in knownSensors_)
+        Sensor newSensor(Sensor::TYPE_TEMPERATURE, 99, 25.0, "New Sensor Name", true);
+        store.sensorGotState(newSensor, SENSOR_UPDATE_BACKEND);
+        
+        // Verify sensor was added with its original name
+        std::vector<Sensor>* sensors = store.getSensors();
+        QVERIFY(sensors->size() == 1);
+        QVERIFY(sensors->at(0).name == "New Sensor Name");
+        QVERIFY(sensors->at(0).hidden == true);
+    }
+
+    void testSensorStoreNewSensorInKnownSensors()
+    {
+        // Create a SensorStore
+        SensorStore store;
+        store.getSensors()->clear();
+        
+        // Load known sensors
+        QJsonObject json;
+        QJsonArray sensorsArray;
+        QJsonObject knownSensor;
+        knownSensor["SensorType"] = Sensor::TYPE_TEMPERATURE;
+        knownSensor["Id"] = 99;
+        knownSensor["Name"] = "Known Sensor Name";
+        knownSensor["Hidden"] = true;
+        sensorsArray.append(knownSensor);
+        json["Sensors"] = sensorsArray;
+        store.load(json);
+        
+        // Add a new sensor that matches knownSensors_
+        Sensor newSensor(Sensor::TYPE_TEMPERATURE, 99, 25.0, "Original Name", false);
+        store.sensorGotState(newSensor, SENSOR_UPDATE_BACKEND);
+        
+        // Verify name was overridden from knownSensors_
+        std::vector<Sensor>* sensors = store.getSensors();
+        QVERIFY(sensors->size() == 1);
+        QVERIFY(sensors->at(0).name == "Known Sensor Name");
+        QVERIFY(sensors->at(0).hidden == true);
+    }
+
+    void testSensorStoreRemoteUpdateIgnored()
+    {
+        // Create a SensorStore
+        SensorStore store;
+        store.getSensors()->clear();
+        
+        // Add initial sensor
+        Sensor initialSensor(Sensor::TYPE_TEMPERATURE, 1, 20.0, "Initial Name", false);
+        store.sensorGotState(initialSensor, SENSOR_UPDATE_BACKEND);
+        
+        // Send REMOTE update with new name and hidden state
+        Sensor remoteUpdate(Sensor::TYPE_TEMPERATURE, 1, 25.0, "Remote Name", true);
+        store.sensorGotState(remoteUpdate, SENSOR_UPDATE_REMOTE);
+        
+        // Verify name and hidden were NOT updated
+        std::vector<Sensor>* sensors = store.getSensors();
+        QVERIFY(sensors->size() == 1);
+        QVERIFY(sensors->at(0).name == "Initial Name");
+        QVERIFY(sensors->at(0).hidden == false);
+        QVERIFY(sensors->at(0).field == 25.0);
+    }
+
     void cleanupTestCase()
     {
         // Cleanup after all tests