sharee.bike-App/TestTINKLib/Fixtures/ObjectTests/Settings/BluetoothLock/TestLockIt.cs

using NSubstitute;
using NUnit.Framework;
using Plugin.BLE.Abstractions;
using Plugin.BLE.Abstractions.Contracts;
using System;
using System.Threading.Tasks;
using TINK.Services.BluetoothLock.Tdo;
using TINK.Services.BluetoothLock.Exception;
using TINK.Services.BluetoothLock.BLE;
using System.Threading;

namespace TestTINKLib.Fixtures.ObjectTests.Settings.BluetoothLock
{
    [TestFixture]
    public class TestLockIt
    {
        [Test]
        public void TestAuthenticate_InvalidSeed()
        {
            var device = Substitute.For<IDevice>();
            var adapter = Substitute.For<IAdapter>();
            var ciper = Substitute.For<TINK.Model.Device.ICipher>();

            var authInfo = new LockInfoAuthTdo.Builder { 
                K_seed = new byte[] { 0 },
                K_u = new byte[] { 1 }
            }.Build();

            device.State.Returns(DeviceState.Connected);

            device.Id.Returns(new Guid("00000000-0000-0000-0000-000000000001"));

            Assert.That(() => LockItEventBased.Authenticate(device, authInfo, adapter, ciper), Throws.InstanceOf<AuthKeyException>());
        }

        [Test]
        public void TestAuthenticate_InvalidAuthKey()
        {
            var device = Substitute.For<IDevice>();
            var adapter = Substitute.For<IAdapter>();
            var ciper = Substitute.For<TINK.Model.Device.ICipher>();

            var authInfo = new LockInfoAuthTdo.Builder
            {
                K_seed = new byte[] { (byte)'t', (byte)'q', (byte)'2', (byte)'n', (byte)'c', (byte)'A', (byte)'I', (byte)'v', (byte)'M', (byte)'t', (byte)'h', (byte)'g', (byte)'x', (byte)'a', (byte)'z', (byte)'B' },
                K_u = new byte[] { }
            }.Build();

            device.State.Returns(DeviceState.Connected);
            device.Id.Returns(new Guid("00000000-0000-0000-0000-000000000001"));

            Assert.That(async () => { await LockItEventBased.Authenticate(device, authInfo, adapter, ciper); }, Throws.InstanceOf<AuthKeyException>());
        }

        [Test]
        public void TestAuthenticate_Invalidated()
        {
            var device = Substitute.For<IDevice>();
            var adapter = Substitute.For<IAdapter>();
            var cipher = Substitute.For<TINK.Model.Device.ICipher>();
            var auth = Substitute.For<ICharacteristic>();
            var lockControl = Substitute.For<IService>();
            var state = Substitute.For<ICharacteristic>();
            var activateLock = Substitute.For<ICharacteristic>();

            var authInfo = new LockInfoAuthTdo.Builder
            {
                K_seed = new byte[] { (byte)'z', (byte)'D', (byte)'G', (byte)'x', (byte)'q', (byte)'M', (byte)'f', (byte)'A', (byte)'F', (byte)'q', (byte)'g', (byte)'N', (byte)'V', (byte)'r', (byte)'N', (byte)'Y' },
                K_u = new byte[] { 1 }
            }.Build();

            // Calls related to Authenticate functionality.
            device.State.Returns(DeviceState.Connected);
            device.Id.Returns(new Guid("0000f00d-1212-efde-1523-785fef13d123"));
            device.GetServiceAsync(Arg.Any<Guid>(), Arg.Any<CancellationToken>()).Returns(Task.FromResult(lockControl));
            lockControl.GetCharacteristicAsync(new Guid("0000baab-1212-efde-1523-785fef13d123")).Returns(Task.FromResult(auth));
            auth.WriteAsync(Arg.Any<byte[]>()).Returns(Task.FromResult(true));
            auth.ReadAsync(Arg.Any<CancellationToken>()).Returns(Task.FromResult(new byte[8]));
            cipher.Decrypt(Arg.Any<byte[]>(), Arg.Any<byte[]>()).Returns(new byte[3]);
            cipher.Encrypt(Arg.Any<byte[]>(), Arg.Any<byte[]>()).Returns(new byte[16]);
            auth.WriteAsync(Arg.Any<byte[]>()).Returns(true);
            device.State.Returns(DeviceState.Connected);
            device.Id.Returns(new Guid("00000000-0000-0000-0000-000000000001"));

            // Call authenticate to invalidate seed
            var lockIt = LockItEventBased.Authenticate(device, authInfo, adapter, cipher).Result;

            // Authenticate again to 
            var execption = Assert.Throws<AggregateException>(() => { var dummy = LockItEventBased.Authenticate(device, authInfo, adapter, cipher).Result; });

            Assert.That(
                execption.InnerExceptions[0].Message,
                Does.Contain ("Seed 122,68,71,120,113,77,102,65,70,113,103,78,86,114,78,89 was already used."));

        }

        [Test]
        public void TestAuthenticate_GetAuthCharacteristicThrowsException()
        {
            var device = Substitute.For<IDevice>();
            var adapter = Substitute.For<IAdapter>();
            var cipher = Substitute.For<TINK.Model.Device.ICipher>();
            var auth = Substitute.For<ICharacteristic>();
            var lockControl = Substitute.For<IService>();
            var state = Substitute.For<ICharacteristic>();
            var activateLock = Substitute.For<ICharacteristic>();

            var authInfo = new LockInfoAuthTdo.Builder
            {
                K_seed = new byte[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
                K_u = new byte[] { 1 }
            }.Build();

            // Calls related to Authenticate functionality.
            device.State.Returns(DeviceState.Connected);
            device.Id.Returns(new Guid("0000f00d-1212-efde-1523-785fef13d123"));
            device.GetServiceAsync(Arg.Any<Guid>(), Arg.Any<CancellationToken>()).Returns(Task.FromResult(lockControl));
            lockControl.GetCharacteristicAsync(new Guid("0000baab-1212-efde-1523-785fef13d123")).Returns(Task.FromResult((ICharacteristic)null));

            // Authenticate again to 
            Assert.That(() => LockItEventBased.Authenticate(device, authInfo, adapter, cipher), Throws.InstanceOf<CoundntGetCharacteristicException>());
        }

        [Test]
        public async Task TestAuthenticate_GetLockState_Closed()
        {
            var device = Substitute.For<IDevice>();
            var adapter = Substitute.For<IAdapter>();
            var cipher = Substitute.For<TINK.Model.Device.ICipher>();
            var auth = Substitute.For<ICharacteristic>();
            var lockControl = Substitute.For<IService>();
            var state = Substitute.For<ICharacteristic>();

            var authInfo = new LockInfoAuthTdo.Builder
            {
                K_seed = new byte[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
                K_u = new byte[] { 1 }
            }.Build();

            // Calls related to Authenticate functionality.
            device.State.Returns(DeviceState.Connected);
            device.Id.Returns(new Guid("0000f00d-1212-efde-1523-785fef13d123"));
            device.GetServiceAsync(Arg.Any<Guid>(), Arg.Any<CancellationToken>()).Returns(Task.FromResult(lockControl));
            lockControl.GetCharacteristicAsync(new Guid("0000baab-1212-efde-1523-785fef13d123")).Returns(Task.FromResult(auth));
            auth.WriteAsync(Arg.Any<byte[]>()).Returns(Task.FromResult(true));
            auth.ReadAsync(Arg.Any<CancellationToken>()).Returns(Task.FromResult(new byte[8]));
            cipher.Decrypt(Arg.Any<byte[]>(), Arg.Any<byte[]>()).Returns(new byte[3]);
            cipher.Encrypt(Arg.Any<byte[]>(), Arg.Any<byte[]>()).Returns(new byte[16]);
            auth.WriteAsync(Arg.Any<byte[]>()).Returns(true);
            device.State.Returns(DeviceState.Connected);
            device.Id.Returns(new Guid("00000000-0000-0000-0000-000000000001"));
            // Calls related to get lock state.

            // Call authenticate to invalidate seed
            lockControl.GetCharacteristicAsync(new Guid("0000baaa-1212-efde-1523-785fef13d123")).Returns(Task.FromResult(state));
            state.ReadAsync(Arg.Any<CancellationToken>()).Returns(new byte[] { 1 });

            var lockIt = LockItEventBased.Authenticate(device, authInfo, adapter, cipher).Result;

            Assert.That((await lockIt.GetLockStateAsync()).State, Is.EqualTo(LockitLockingState.Closed));
        }

        [Test]
        public void TestAuthenticate_GetLockState_GetStateCharacteristicThrowsException()
        {
            var device = Substitute.For<IDevice>();
            var adapter = Substitute.For<IAdapter>();
            var cipher = Substitute.For<TINK.Model.Device.ICipher>();
            var auth = Substitute.For<ICharacteristic>();
            var lockControl = Substitute.For<IService>();

            var authInfo = new LockInfoAuthTdo.Builder
            {
                K_seed = new byte[] { (byte)'y', (byte)'D', (byte)'G', (byte)'x', (byte)'q', (byte)'M', (byte)'f', (byte)'A', (byte)'F', (byte)'q', (byte)'g', (byte)'N', (byte)'V', (byte)'r', (byte)'N', (byte)'Y' },
                K_u = new byte[] { 1 }
            }.Build();

            // Calls related to Authenticate functionality.
            device.State.Returns(DeviceState.Connected);
            device.Id.Returns(new Guid("0000f00d-1212-efde-1523-785fef13d123"));
            device.GetServiceAsync(Arg.Any<Guid>(), Arg.Any<CancellationToken>()).Returns(Task.FromResult(lockControl));
            lockControl.GetCharacteristicAsync(new Guid("0000baab-1212-efde-1523-785fef13d123")).Returns(Task.FromResult(auth));
            auth.WriteAsync(Arg.Any<byte[]>()).Returns(Task.FromResult(true));
            auth.ReadAsync(Arg.Any<CancellationToken>()).Returns(Task.FromResult(new byte[8]));
            cipher.Decrypt(Arg.Any<byte[]>(), Arg.Any<byte[]>()).Returns(new byte[3]);
            cipher.Encrypt(Arg.Any<byte[]>(), Arg.Any<byte[]>()).Returns(new byte[16]);
            auth.WriteAsync(Arg.Any<byte[]>()).Returns(true);
            device.State.Returns(DeviceState.Connected);
            device.Id.Returns(new Guid("00000000-0000-0000-0000-000000000001"));

            // Calls related to get lock state.
            lockControl.GetCharacteristicAsync(new Guid("0000baaa-1212-efde-1523-785fef13d123")).Returns(Task.FromResult((ICharacteristic)null));

            var lockIt = LockItEventBased.Authenticate(device, authInfo, adapter, cipher).Result;

            Assert.That(async () => (await lockIt.GetLockStateAsync()).State, Throws.InstanceOf<CoundntGetCharacteristicException>());
        }
    }
}