package com.battery.device.api;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import java.util.Set;
import org.junit.jupiter.api.Test;
import com.battery.device.model.ChannelIdentity;
import com.battery.device.model.DeviceConnectionStatus;
import com.battery.device.model.DeviceWorkStatus;
import com.battery.device.model.ObservationFailureReason;

class DeviceObservationContractTest
{
    @Test
    void noopUsesTheObservationContractWithoutExternalSideEffects()
    {
        ChannelIdentity channel = new ChannelIdentity("noop", 1, 2, 3, 4);
        try (DeviceObservationAdapter adapter = new NoopDeviceAdapter("noop"))
        {
            var observation = adapter.observe(Set.of(channel)).get(channel);
            assertEquals(DeviceConnectionStatus.OFFLINE, observation.connectionStatus());
            assertEquals(DeviceWorkStatus.UNOBSERVABLE, observation.workStatus());
            assertEquals(ObservationFailureReason.OFFLINE, observation.failureReason());
            assertFalse(adapter.capabilities().control());
        }
    }
}