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Robert Lindblom
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Updated to target relevant frameworks.
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‎.gitignore

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# Mac crap
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.DS_Store
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**/.vs

‎AutoMockerNSubstitute.1.0.0.nupkg

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‎README.md

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This repo was forked from [NSubstituteAutoMocker](https://github.com/kevin-mcmanus/NSubstituteAutoMocker), which seems quite dead, and is updated to be able to target relevant frameworks.
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NSubstituteAutoMocker
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=====================
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Final note
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----------
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This extension has been built with unit testing in mind. Paying tribute to NSubstitute it has been designed to keep things simple. There are much more powerful automockers that make use of Dependency Injection containers, this is not one of them.
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This extension has been built with unit testing in mind. Paying tribute to NSubstitute it has been designed to keep things simple. There are much more powerful automockers that make use of Dependency Injection containers, this is not one of them.

‎source/AutoMockerNSubstitute.sln

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.12.35707.178 d17.12
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AutoMockerNSubstitute", "NSubstituteAutoMocker\AutoMockerNSubstitute.csproj", "{002D064D-9396-4959-BB01-40AEEEF24B32}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AutoMockerNSubstitute.UnitTests", "NSubstituteAutoMocker.UnitTests\AutoMockerNSubstitute.UnitTests.csproj", "{2F299790-5F2F-46F8-9238-181AEAC5CEE0}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{002D064D-9396-4959-BB01-40AEEEF24B32}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{002D064D-9396-4959-BB01-40AEEEF24B32}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{002D064D-9396-4959-BB01-40AEEEF24B32}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{002D064D-9396-4959-BB01-40AEEEF24B32}.Release|Any CPU.Build.0 = Release|Any CPU
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{2F299790-5F2F-46F8-9238-181AEAC5CEE0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{2F299790-5F2F-46F8-9238-181AEAC5CEE0}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{2F299790-5F2F-46F8-9238-181AEAC5CEE0}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{2F299790-5F2F-46F8-9238-181AEAC5CEE0}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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EndGlobal

‎source/NSubstituteAutoMocker.UnitTests/AutoMockerNSubstitute.UnitTests.csproj

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>net8.0</TargetFramework>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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<IsPackable>false</IsPackable>
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<IsTestProject>true</IsTestProject>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="coverlet.collector" Version="6.0.4">
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<PrivateAssets>all</PrivateAssets>
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<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
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</PackageReference>
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<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
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<PackageReference Include="xunit" Version="2.9.3" />
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<PackageReference Include="xunit.runner.visualstudio" Version="3.0.1">
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<PrivateAssets>all</PrivateAssets>
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<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
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</PackageReference>
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\NSubstituteAutoMocker\AutoMockerNSubstitute.csproj" />
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</ItemGroup>
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<ItemGroup>
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<Using Include="Xunit" />
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</ItemGroup>
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</Project>

‎source/NSubstituteAutoMocker.UnitTests/AutoMockerNSubstitute.cs

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using AutoMockerNSubstitute.UnitTests.SamplesToTest;
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using NSubstituteAutoMocker;
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namespace AutoMockerNSubstitute.UnitTests;
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public class NSubstituteAutoMockerTests
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{
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public class DefaultConstructor
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{
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[Fact]
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public void UsesDefaultConstructorIfAvailable()
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{
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NSubstituteAutoMocker<ClassWithJustDefaultConstructor> autoMocker =
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new NSubstituteAutoMocker<ClassWithJustDefaultConstructor>();
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Assert.NotNull(autoMocker.ClassUnderTest);
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}
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[Fact]
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public void ThrowsExceptionIfPrivate()
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{
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Assert.Throws<ConstructorMatchException>(() => new NSubstituteAutoMocker<ClassWithPrivateDefaultConstructor>());
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}
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[Fact]
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public void ClassUnderTestCanBeSealed()
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{
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NSubstituteAutoMocker<SealedClass> autoMocker = new NSubstituteAutoMocker<SealedClass>();
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Assert.NotNull(autoMocker.ClassUnderTest);
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}
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[Fact]
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public void PrimitiveParameterTypesGetSetToDefaultValue()
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{
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NSubstituteAutoMocker<ClassWithPrimitiveConstructors> autoMocker = new NSubstituteAutoMocker<ClassWithPrimitiveConstructors>();
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Assert.Null(autoMocker.ClassUnderTest.IntValue);
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Assert.Null(autoMocker.ClassUnderTest.StringValue);
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}
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}
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public class ConstructorWithArgs
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{
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[Fact]
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public void UsesEquivalentConstructorIfAvailable()
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{
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NSubstituteAutoMocker<ClassWithAllConstructors> autoMocker =
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new NSubstituteAutoMocker<ClassWithAllConstructors>([typeof(IDependency1), typeof(IDependency2)]);
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Assert.NotNull(autoMocker.ClassUnderTest);
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Assert.NotNull(autoMocker.ClassUnderTest.Dependency1);
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Assert.NotNull(autoMocker.ClassUnderTest.Dependency2);
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}
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[Fact]
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public void NullParameterUsesDefaultConstructor()
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{
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NSubstituteAutoMocker<ClassWithAllConstructors> autoMocker =
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new NSubstituteAutoMocker<ClassWithAllConstructors>(null, null);
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Assert.NotNull(autoMocker.ClassUnderTest);
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}
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[Fact]
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public void EmptyParameterUsesDefaultConstructor()
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{
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NSubstituteAutoMocker<ClassWithAllConstructors> autoMocker = new NSubstituteAutoMocker<ClassWithAllConstructors>([]);
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Assert.NotNull(autoMocker.ClassUnderTest);
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}
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[Fact]
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public void ThrowsExceptionIfNoMatchAvailable()
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{
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Assert.Throws<ConstructorMatchException>(() => new NSubstituteAutoMocker<ClassWithAllConstructors>([typeof(IDependency2), typeof(IDependency1)]));
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}
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[Fact]
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public void CanOverrideParameterViaEvent()
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{
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NSubstituteAutoMocker<ClassWithAllConstructors> autoMocker =
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new NSubstituteAutoMocker<ClassWithAllConstructors>([typeof(IDependency1), typeof(IDependency2)],
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(paramInfo, obj) =>
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{
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if (paramInfo.ParameterType == typeof(IDependency1))
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return new Dependency1VitoImplementation();
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return obj;
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});
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Assert.IsAssignableFrom<Dependency1VitoImplementation>(autoMocker.ClassUnderTest.Dependency1);
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}
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[Fact]
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public void CanOverrideParameterViaEventAlt()
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{
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NSubstituteAutoMocker<ClassWithAllConstructors> autoMocker =
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new NSubstituteAutoMocker<ClassWithAllConstructors>((paramInfo, obj) =>
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{
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if (paramInfo.ParameterType == typeof(IDependency1))
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return new Dependency1VitoImplementation();
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return obj;
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});
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Assert.IsAssignableFrom<Dependency1VitoImplementation>(autoMocker.ClassUnderTest.Dependency1);
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}
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}
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public class Get
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{
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[Fact]
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public void AvailableTypeReturned()
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{
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NSubstituteAutoMocker<ClassWithAllConstructors> autoMocker = new NSubstituteAutoMocker<ClassWithAllConstructors>();
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Assert.NotNull(autoMocker.Get<IDependency1>());
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Assert.NotNull(autoMocker.Get<IDependency2>());
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}
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[Fact]
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public void UnavailableTypeThrowsException()
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{
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NSubstituteAutoMocker<ClassWithAllConstructors> autoMocker = new NSubstituteAutoMocker<ClassWithAllConstructors>();
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Assert.Throws<ConstructorParameterNotFoundException>(() => autoMocker.Get<IOverdraft>());
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}
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[Fact]
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public void MultipleAvailableTypesThrowsExceptionIfNameNotSpecified()
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{
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NSubstituteAutoMocker<ClassWithDuplicateConstructorTypes> autoMocker = new NSubstituteAutoMocker<ClassWithDuplicateConstructorTypes>();
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Assert.Throws<ConstructorParameterNotFoundException>(() => autoMocker.Get<IDependency1>());
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}
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[Fact]
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public void MultipleAvailableTypesWithNameReturned()
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{
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NSubstituteAutoMocker<ClassWithDuplicateConstructorTypes> autoMocker = new NSubstituteAutoMocker<ClassWithDuplicateConstructorTypes>();
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Assert.NotNull(autoMocker.Get<IDependency1>("dependencyTwo"));
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}
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}
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// TODO Do I need to test the use of generics or collections?
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// TODO Do I need to test the visibility of classes/interfaces?
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}

‎source/NSubstituteAutoMocker.UnitTests/DocumentationSnippets/FirstExample.cs

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using Microsoft.VisualStudio.TestTools.UnitTesting;
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using NSubstitute;
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using NSubstitute;
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using NSubstituteAutoMocker;
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namespace NSubstituteAutoMocker.UnitTests.DocumentationSnippets
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{
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public class SavingsAccount
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{
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private readonly IInterestCalculator _interestCalculator;
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public SavingsAccount(IInterestCalculator interestCalculator)
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{
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_interestCalculator = interestCalculator;
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}
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public decimal Balance { get; private set; }
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namespace AutoMockerNSubstitute.UnitTests.DocumentationSnippets;
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public void Deposit(decimal amount)
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{
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Balance += amount;
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}
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public class SavingsAccount(IInterestCalculator interestCalculator)
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{
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public decimal Balance { get; private set; }
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public void WithDraw(decimal amount)
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{
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Balance -= amount;
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}
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public void Deposit(decimal amount)
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{
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Balance += amount;
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}
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public void ApplyInterest()
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{
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Balance += _interestCalculator.Calculate();
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}
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public void WithDraw(decimal amount)
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{
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Balance -= amount;
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}
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public interface IInterestCalculator
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public void ApplyInterest()
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{
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decimal Calculate();
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Balance += interestCalculator.Calculate();
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}
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}
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public interface IInterestCalculator
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{
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decimal Calculate();
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}
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[TestClass]
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public class SavingsAccountTests
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public class SavingsAccountTests
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{
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[Fact]
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public void ApplyInterestUpdatesTheBalance()
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{
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[TestMethod]
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public void ApplyInterestUpdatesTheBalance()
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{
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// Arange
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IInterestCalculator interestCalculator = Substitute.For<IInterestCalculator>();
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interestCalculator.Calculate().Returns(123);
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SavingsAccount savingsAccount = new SavingsAccount(interestCalculator);
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// Arrange
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IInterestCalculator interestCalculator = Substitute.For<IInterestCalculator>();
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interestCalculator.Calculate().Returns(123);
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SavingsAccount savingsAccount = new SavingsAccount(interestCalculator);
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// Act
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savingsAccount.ApplyInterest();
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// Act
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savingsAccount.ApplyInterest();
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// Assert
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Assert.AreEqual(123, savingsAccount.Balance);
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}
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// Assert
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Assert.Equal(123, savingsAccount.Balance);
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}
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}
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[TestClass]
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public class SavingsAccountTestsWithNSubstituteAutoMocker
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public class SavingsAccountTestsWithNSubstituteAutoMocker
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{
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[Fact]
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public void ApplyInterestUpdatesTheBalance()
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{
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[TestMethod]
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public void ApplyInterestUpdatesTheBalance()
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{
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// Arange
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var automocker = new NSubstituteAutoMocker<SavingsAccount>();
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automocker.Get<IInterestCalculator>().Calculate().Returns(123);
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// Arrange
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var automocker = new NSubstituteAutoMocker<SavingsAccount>();
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automocker.Get<IInterestCalculator>().Calculate().Returns(123);
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// Act
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automocker.ClassUnderTest.ApplyInterest();
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// Act
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automocker.ClassUnderTest.ApplyInterest();
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// Assert
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Assert.AreEqual(123, automocker.ClassUnderTest.Balance);
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}
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// Assert
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Assert.Equal(123, automocker.ClassUnderTest.Balance);
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}
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}

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