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added unit tests
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Holger Börchers
2023-03-29 21:47:10 +02:00
parent 8c5ec02ed7
commit 291eafeeba
22 changed files with 82 additions and 15 deletions
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56
playground/SmallInjectorDemo.sln Normal file
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playground/SmallInjectorDemo/Helper.cs Normal file
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using SmallInjectorDemo.Interfaces;
using System.Buffers.Text;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;
namespace SmallInjectorDemo;
/// <summary>
/// Static helper class for generating random numbers.
/// </summary>
public static class Helper
{
/// <summary>
/// Encode Base64 string
/// </summary>
public static string EncodeBase64String(this Guid guid)
{
Span<byte> guidBytes = stackalloc byte[16];
Span<byte> encodedBytes = stackalloc byte[24];
MemoryMarshal.TryWrite(guidBytes, ref guid); // write bytes from the Guid
Base64.EncodeToUtf8(guidBytes, encodedBytes, out _, out _);
// skip the last two bytes as these will be '==' padding
var final = Encoding.UTF8.GetString(encodedBytes[..22]);
return final;
}
/// <summary>
/// Write method string.
/// </summary>
/// <param name="clock">The current clock</param>
/// <param name="id">id of the object</param>
/// <param name="memberName">member name</param>
/// <param name="filepath">file path</param>
/// <returns></returns>
public static string WriteMethodString(IClock clock, string id, [CallerMemberName] string memberName = null, [CallerFilePath] string filepath = null)
{
var classname = Path.GetFileNameWithoutExtension(filepath);
return $"[{clock.CurrentDateTime}] {classname}.{memberName?.TrimStart('.')}".PadRight(30) + $"Id: {id}";
}
}

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playground/SmallInjectorDemo/Interfaces/IClock.cs Normal file
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namespace SmallInjectorDemo.Interfaces;
/// <summary>
/// Interface of the clock.
/// </summary>
public interface IClock
{
/// <summary>
/// Current Date-Time.
/// </summary>
string CurrentDateTime { get; }
}

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playground/SmallInjectorDemo/Interfaces/IModule.cs Normal file
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namespace SmallInjectorDemo.Interfaces;
/// <summary>
/// Defines the <see cref="IModule" />
/// </summary>
public interface IModule { }

6
playground/SmallInjectorDemo/Interfaces/IServiceOne.cs Normal file
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namespace SmallInjectorDemo.Interfaces;
/// <summary>
/// Interface for service one.
/// </summary>
public interface IServiceOne { }

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playground/SmallInjectorDemo/Interfaces/IServiceTwo.cs Normal file
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namespace SmallInjectorDemo.Interfaces;
/// <summary>
/// Interface for service two.
/// </summary>
public interface IServiceTwo { }

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playground/SmallInjectorDemo/Items/ModuleA.cs Normal file
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using SmallInjectorDemo.Interfaces;
namespace SmallInjectorDemo.Items;
/// <summary>
/// Defines the <see cref="ModuleA" />
/// </summary>
public class ModuleA : IModule { }

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playground/SmallInjectorDemo/Items/ModuleB.cs Normal file
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using SmallInjectorDemo.Interfaces;
namespace SmallInjectorDemo.Items;
/// <summary>
/// Defines the <see cref="ModuleB" />
/// </summary>
public class ModuleB : IModule { }

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playground/SmallInjectorDemo/Items/ModuleC.cs Normal file
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using SmallInjectorDemo.Interfaces;
namespace SmallInjectorDemo.Items;
/// <summary>
/// Defines the <see cref="ModuleC" />
/// </summary>
public class ModuleC : IModule { }

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playground/SmallInjectorDemo/Program.cs Normal file
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using SmallInjector;
using SmallInjectorDemo;
using SmallInjectorDemo.Interfaces;
using SmallInjectorDemo.Items;
IContainer container = new Container();
Console.WriteLine("Small dependency injection example");
container.RegisterType(true, container);
Console.WriteLine("Register " + nameof(SystemClock));
container.RegisterType<SystemClock, IClock>(true);
Console.WriteLine("Register " + nameof(ServiceOne));
container.RegisterType<ServiceOne, IServiceOne>(true);
Console.WriteLine("Register " + nameof(ServiceTwo));
container.RegisterType<ServiceTwo, IServiceTwo>(true);
Console.WriteLine("Register " + nameof(ServiceConsumer));
container.RegisterType<ServiceConsumer>(false);
container.RegisterType<ModuleA, IModule>(true);
container.RegisterType<ModuleB, IModule>(true);
container.RegisterType<ModuleC, IModule>(true);
Console.WriteLine();
Console.WriteLine("Check registrations:");
Console.WriteLine(nameof(IClock).PadRight(20) + container.IsRegistered<IClock>());
Console.WriteLine(nameof(IServiceOne).PadRight(20) + container.IsRegistered<IServiceOne>());
Console.WriteLine(nameof(IServiceTwo).PadRight(20) + container.IsRegistered<IServiceTwo>());
Console.WriteLine(nameof(ServiceConsumer).PadRight(20) + container.IsRegistered<ServiceConsumer>());
Console.WriteLine();
Console.WriteLine("Resolve class instances:");
var useful1 = container.Resolve<ServiceConsumer>();
var useful2 = container.Resolve<ServiceConsumer>();
var useful3 = container.Resolve<ServiceConsumer>();
Console.WriteLine();
Console.WriteLine("Run test methods:");
useful1.TestTheServices();
Console.WriteLine();
useful2.TestTheServices();
Console.WriteLine();
useful3.TestTheServices();

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playground/SmallInjectorDemo/ServiceConsumer.cs Normal file
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using SmallInjectorDemo.Interfaces;
namespace SmallInjectorDemo;
/// <summary>
/// A very useful class.
/// </summary>
public class ServiceConsumer
{
private readonly IClock _clock;
private readonly IServiceOne _service1;
private readonly IServiceTwo _service2;
private readonly string _id;
/// <summary>
/// Creates a new instance of <see cref="ServiceConsumer"/>.
/// </summary>
/// <param name="clock">The current clock</param>
/// <param name="service1">injected service one.</param>
/// <param name="service2">injected service two.</param>
public ServiceConsumer(IClock clock, IServiceOne service1, IServiceTwo service2)
{
_clock = clock;
_service1 = service1;
_service2 = service2;
_id = Guid.NewGuid().EncodeBase64String();
Console.WriteLine(Helper.WriteMethodString(clock, _id));
}
/// <summary>
/// Test the injected services.
/// </summary>
public void TestTheServices()
{
Console.WriteLine(ToString());
Console.WriteLine(_service1.ToString());
Console.WriteLine(_service2.ToString());
}
/// <inheritdoc />
public override string ToString() => Helper.WriteMethodString(_clock, _id);
}

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playground/SmallInjectorDemo/ServiceOne.cs Normal file
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using SmallInjectorDemo.Interfaces;
namespace SmallInjectorDemo;
/// <inheritdoc />
/// <summary>
/// Implementation of <see cref="T:SmallInjectorDemo.IServiceOne" />.
/// </summary>
public class ServiceOne : IServiceOne
{
private readonly IClock _clock;
private readonly string _id;
/// <summary>
/// Creates a new instance of <see cref="ServiceOne"/>.
/// </summary>
public ServiceOne(IClock clock)
{
_clock = clock;
_id = Guid.NewGuid().EncodeBase64String();
Console.WriteLine(Helper.WriteMethodString(clock, _id));
}
/// <inheritdoc />
public override string ToString() => Helper.WriteMethodString(_clock, _id);
}

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playground/SmallInjectorDemo/ServiceTwo.cs Normal file
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using SmallInjectorDemo.Interfaces;
namespace SmallInjectorDemo;
/// <inheritdoc />
/// <summary>
/// Implementation of <see cref="T:SmallInjectorDemo.IServiceTwo" />.
/// </summary>
public class ServiceTwo : IServiceTwo
{
private readonly IClock _clock;
private readonly string _id;
/// <summary>
/// Creates a new instance of <see cref="ServiceTwo"/>.
/// </summary>
public ServiceTwo(IClock clock)
{
_clock = clock;
_id = Guid.NewGuid().EncodeBase64String();
Console.WriteLine(Helper.WriteMethodString(clock, _id));
}
/// <inheritdoc />
public override string ToString() => Helper.WriteMethodString(_clock, _id);
}

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playground/SmallInjectorDemo/SmallInjectorDemo.csproj Normal file
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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net7.0</TargetFramework>
<AssemblyName>SmallInjectorDemo</AssemblyName>
<RootNamespace>SmallInjectorDemo</RootNamespace>
<LangVersion>latest</LangVersion>
<ImplicitUsings>enable</ImplicitUsings>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\..\src\SmallInjector\SmallInjector.csproj" />
</ItemGroup>
</Project>

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playground/SmallInjectorDemo/SystemClock.cs Normal file
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using SmallInjectorDemo.Interfaces;
namespace SmallInjectorDemo;
/// <inheritdoc />
public class SystemClock : IClock
{
/// <inheritdoc />
public string CurrentDateTime => DateTime.Now.ToString("O");
}