uno.xamarin.essentials/Tests/Battery_Tests.cs

using Xamarin.Essentials;
using Xunit;

namespace Tests
{
    public class Battery_Tests
    {
        [Fact]
        public void Charge_Level_On_NetStandard() =>
            Assert.Throws<NotImplementedInReferenceAssemblyException>(() => Battery.ChargeLevel);

        [Fact]
        public void Charge_State_On_NetStandard() =>
            Assert.Throws<NotImplementedInReferenceAssemblyException>(() => Battery.State);

        [Fact]
        public void Charge_Power_Source_On_NetStandard() =>
            Assert.Throws<NotImplementedInReferenceAssemblyException>(() => Battery.PowerSource);

        [Fact]
        public void Battery_Changed_Event_On_NetStandard() =>
            Assert.Throws<NotImplementedInReferenceAssemblyException>(() => Battery.BatteryChanged += Battery_BatteryChanged);

        void Battery_BatteryChanged(object sender, BatteryChangedEventArgs e)
        {
        }
    }
}