Test app feedback

class BatteryManager(val reporter:KeyedAppStatesReporter) {
  fun lowBattery(battery:Int) {
    reporter.setStatesImmediate(
        hashSetOf(KeyedAppState.builder()
           .setKey("battery")
           .setSeverity(KeyedAppState.SEVERITY_INFO)
           .setMessage("Battery is low")
           .setData(battery.toString())
           .build()))
  }
}

public class BatteryManager {
    private final KeyedAppStatesReporter reporter;
    public BatteryManager(KeyedAppStatesReporter reporter) {
        this.reporter = reporter;
    }

    public void lowBattery(int battery) {
        final Collection states = new HashSet<>();
        states.add(KeyedAppState.builder()
            .setKey("battery")
            .setSeverity(KeyedAppState.SEVERITY_INFO)
            .setMessage("Battery is low")
            .setData(Integer.toString(battery))
            .build();
        reporter.setStatesImmediate(states);
    }
}

val reporter = FakeKeyedAppStatesReporter();
val batteryManager = BatteryManager(reporter);

FakeKeyedAppStatesReporter reporter = new FakeKeyedAppStatesReporter();
BatteryManager batteryManager = new BatteryManager(reporter);

assertThat(reporter.keyedAppStates).isEmpty();

assertThat(reporter.getKeyedAppStates()).isEmpty();

assertThat(reporter.uploadedKeyedAppStatesByKey["battery"]).isNotNull()

assertThat(reporter.getUploadedKeyedAppStatesByKey().get("battery")).isNotNull();