dotnet/tests/CommunityToolkit.Mvvm.UnitTests/Test_ArgumentNullException.ComponentModel.cs at main · CommunityToolkit/dotnet · GitHub

Name: dotnet/tests/CommunityToolkit.Mvvm.UnitTests/Test_ArgumentNullException.ComponentModel.cs at main · CommunityToolkit/dotnet · GitHub
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

usingSystem;
usingSystem.Collections.Generic;
usingSystem.ComponentModel;
usingSystem.ComponentModel.DataAnnotations;
usingSystem.Threading.Tasks;
usingCommunityToolkit.Mvvm.ComponentModel;
usingCommunityToolkit.Mvvm.Messaging;
usingMicrosoft.VisualStudio.TestTools.UnitTesting;

namespaceCommunityToolkit.Mvvm.UnitTests;

[TestClass]
publicpartialclassTest_ArgumentNullException
{
[TestMethod]
publicvoidTest_ArgumentNullException_ObservableObject()
{
TestObservableObjectmodel=new();

Assert(()=>model.NullPropertyChanged(),"e");
Assert(()=>model.NullPropertyChanging(),"e");

Assert(()=>model.SetProperty(comparer:null!),"comparer");
Assert(()=>model.SetProperty(callback:(Action<string>)null!),"callback");
Assert(()=>model.SetProperty(comparer:null!, s =>{}),"comparer");
Assert(()=>model.SetProperty(EqualityComparer<string>.Default,callback:null!),"callback");
Assert(()=>model.SetProperty(model:null!,(objectm,stringv)=>{}),"model");
Assert(()=>model.SetProperty(newobject(),callback:null!),"callback");
Assert(()=>model.SetProperty(comparer:null!,newobject(),(objectm,stringv)=>{}),"comparer");
Assert(()=>model.SetProperty(EqualityComparer<string>.Default,model:null!,(objectm,stringv)=>{}),"model");
Assert(()=>model.SetProperty(EqualityComparer<string>.Default,newobject(),callback:null!),"callback");
Assert(()=>model.SetProperty(callback:(Action<Task?>)null!),"callback");
Assert(()=>model.SetProperty(callback:(Action<Task<string>?>)null!),"callback");
}

[TestMethod]
publicvoidTest_ArgumentNullException_ObservableRecipient()
{
Assert(()=>newTestObservableRecipient(null!),"messenger");

TestObservableRecipientmodel=new(newWeakReferenceMessenger());

Assert(()=>model.SetProperty(comparer:null!),"comparer");
Assert(()=>model.SetProperty(callback:null!),"callback");
Assert(()=>model.SetProperty(comparer:null!, s =>{}),"comparer");
Assert(()=>model.SetProperty(EqualityComparer<string>.Default,callback:null!),"callback");
Assert(()=>model.SetProperty(model:null!,(objectm,stringv)=>{}),"model");
Assert(()=>model.SetProperty(newobject(),callback:null!),"callback");
Assert(()=>model.SetProperty(comparer:null!,newobject(),(objectm,stringv)=>{}),"comparer");
Assert(()=>model.SetProperty(EqualityComparer<string>.Default,model:null!,(objectm,stringv)=>{}),"model");
Assert(()=>model.SetProperty(EqualityComparer<string>.Default,newobject(),callback:null!),"callback");
}

[TestMethod]
publicvoidTest_ArgumentNullException_ObservableValidator()
{
Assert(()=>newTestObservableValidator(null!),"validationContext");

TestObservableValidatormodel=new();

Assert(()=>model.SetProperty(propertyName:null!),"propertyName");
Assert(()=>model.SetProperty(comparer:null!,""),"comparer");
Assert(()=>model.SetProperty(EqualityComparer<string>.Default,propertyName:null!),"propertyName");
Assert(()=>model.SetProperty(callback:null!,""),"callback");
Assert(()=>model.SetProperty(s =>{},propertyName:null!),"propertyName");
Assert(()=>model.SetProperty(comparer:null!, s =>{},""),"comparer");
Assert(()=>model.SetProperty(EqualityComparer<string>.Default,callback:null!,""),"callback");
Assert(()=>model.SetProperty(EqualityComparer<string>.Default, s =>{},propertyName:null!),"propertyName");
Assert(()=>model.SetProperty(model:null!,(m,v)=>{},""),"model");
Assert(()=>model.SetProperty(newobject(),callback:null!,""),"callback");
Assert(()=>model.SetProperty(newobject(),(m,v)=>{},propertyName:null!),"propertyName");
Assert(()=>model.SetProperty(comparer:null!,newobject(),(m,v)=>{},""),"comparer");
Assert(()=>model.SetProperty(EqualityComparer<string>.Default,model:null!,(m,v)=>{},""),"model");
Assert(()=>model.SetProperty(EqualityComparer<string>.Default,newobject(),callback:null!,""),"callback");
Assert(()=>model.SetProperty(EqualityComparer<string>.Default,newobject(),(m,v)=>{},propertyName:null!),"propertyName");

Assert(()=>model.TrySetProperty(propertyName:null!),"propertyName");
Assert(()=>model.TrySetProperty(comparer:null!,""),"comparer");
Assert(()=>model.TrySetProperty(EqualityComparer<string>.Default,propertyName:null!),"propertyName");
Assert(()=>model.TrySetProperty(callback:null!,""),"callback");
Assert(()=>model.TrySetProperty(s =>{},propertyName:null!),"propertyName");
Assert(()=>model.TrySetProperty(comparer:null!, s =>{},""),"comparer");
Assert(()=>model.TrySetProperty(EqualityComparer<string>.Default,callback:null!,""),"callback");
Assert(()=>model.TrySetProperty(EqualityComparer<string>.Default, s =>{},propertyName:null!),"propertyName");
Assert(()=>model.TrySetProperty(model:null!,(m,v)=>{},""),"model");
Assert(()=>model.TrySetProperty(newobject(),callback:null!,""),"callback");
Assert(()=>model.TrySetProperty(newobject(),(m,v)=>{},propertyName:null!),"propertyName");
Assert(()=>model.TrySetProperty(comparer:null!,newobject(),(m,v)=>{},""),"comparer");
Assert(()=>model.TrySetProperty(EqualityComparer<string>.Default,model:null!,(m,v)=>{},""),"model");
Assert(()=>model.TrySetProperty(EqualityComparer<string>.Default,newobject(),callback:null!,""),"callback");
Assert(()=>model.TrySetProperty(EqualityComparer<string>.Default,newobject(),(m,v)=>{},propertyName:null!),"propertyName");

Assert(()=>model.ValidateProperty(null!),"propertyName");
}

privateclassTestObservableObject:ObservableObject
{
publicvoidNullPropertyChanged()
{
OnPropertyChanged((PropertyChangedEventArgs)null!);
}

publicvoidNullPropertyChanging()
{
OnPropertyChanging((PropertyChangingEventArgs)null!);
}

publicvoidSetProperty(IEqualityComparer<string>comparer)
{
stringdummy="";

_=SetProperty(refdummy,dummy,comparer);
}

publicvoidSetProperty(Action<string>callback)
{
stringdummy="";

_=SetProperty(dummy,dummy,callback);
}

publicvoidSetProperty(IEqualityComparer<string>comparer,Action<string>callback)
{
stringdummy="";

_=SetProperty(dummy,dummy,comparer,callback);
}

publicvoidSetProperty(objectmodel,Action<object,string>callback)
{
stringdummy="";

_=SetProperty(dummy,dummy,model,callback);
}

publicvoidSetProperty(IEqualityComparer<string>comparer,objectmodel,Action<object,string>callback)
{
stringdummy="";

_=SetProperty(dummy,dummy,comparer,model,callback);
}

publicvoidSetProperty(Action<Task?>callback)
{
TaskNotifier?dummy=null;

_=SetPropertyAndNotifyOnCompletion(refdummy,null,callback);
}

publicvoidSetProperty(Action<Task<string>?>callback)
{
TaskNotifier<string>?dummy=null;

_=SetPropertyAndNotifyOnCompletion(refdummy,null,callback);
}
}

privateclassTestObservableRecipient:ObservableRecipient
{
publicTestObservableRecipient(IMessengermessenger)
:base(messenger)
{
}

publicvoidSetProperty(IEqualityComparer<string>comparer)
{
stringdummy="";

_=SetProperty(refdummy,dummy,comparer,true);
}

publicvoidSetProperty(Action<string>callback)
{
stringdummy="";

_=SetProperty(dummy,dummy,callback,true);
}

publicvoidSetProperty(IEqualityComparer<string>comparer,Action<string>callback)
{
stringdummy="";

_=SetProperty(dummy,dummy,comparer,callback,true);
}

publicvoidSetProperty(objectmodel,Action<object,string>callback)
{
stringdummy="";

_=SetProperty(dummy,dummy,model,callback,true);
}

publicvoidSetProperty(IEqualityComparer<string>comparer,objectmodel,Action<object,string>callback)
{
stringdummy="";

_=SetProperty(dummy,dummy,comparer,model,callback,true);
}
}

internalclassTestObservableValidator:ObservableValidator
{
publicTestObservableValidator()
{
}

publicTestObservableValidator(ValidationContextvalidationContext)
:base(validationContext)
{
}

publicvoidSetProperty(stringpropertyName)
{
stringdummy="";

_=SetProperty(refdummy,dummy,true,propertyName);
}

publicvoidSetProperty(IEqualityComparer<string>comparer,stringpropertyName)
{
stringdummy="";

_=SetProperty(refdummy,dummy,comparer,true,propertyName);
}

publicvoidSetProperty(Action<string>callback,stringpropertyName)
{
stringdummy="";

_=SetProperty(dummy,dummy,callback,true,propertyName);
}

publicvoidSetProperty(IEqualityComparer<string>comparer,Action<string>callback,stringpropertyName)
{
stringdummy="";

_=SetProperty(dummy,dummy,comparer,callback,true,propertyName);
}

publicvoidSetProperty(objectmodel,Action<object,string>callback,stringpropertyName)
{
stringdummy="";

_=SetProperty(dummy,dummy,model,callback,true,propertyName);
}

publicvoidSetProperty(IEqualityComparer<string>comparer,objectmodel,Action<object,string>callback,stringpropertyName)
{
stringdummy="";

_=SetProperty(dummy,dummy,comparer,model,callback,true,propertyName);
}

publicvoidTrySetProperty(stringpropertyName)
{
stringdummy="";

_=TrySetProperty(refdummy,dummy,out_,propertyName);
}

publicvoidTrySetProperty(IEqualityComparer<string>comparer,stringpropertyName)
{
stringdummy="";

_=TrySetProperty(refdummy,dummy,comparer,out_,propertyName);
}

publicvoidTrySetProperty(Action<string>callback,stringpropertyName)
{
stringdummy="";

_=TrySetProperty(dummy,dummy,callback,out_,propertyName);
}

publicvoidTrySetProperty(IEqualityComparer<string>comparer,Action<string>callback,stringpropertyName)
{
stringdummy="";

_=TrySetProperty(dummy,dummy,comparer,callback,out_,propertyName);
}

publicvoidTrySetProperty(objectmodel,Action<object,string>callback,stringpropertyName)
{
stringdummy="";

_=TrySetProperty(dummy,dummy,model,callback,out_,propertyName);
}

publicvoidTrySetProperty(IEqualityComparer<string>comparer,objectmodel,Action<object,string>callback,stringpropertyName)
{
stringdummy="";

_=TrySetProperty(dummy,dummy,comparer,model,callback,out_,propertyName);
}

publicvoidValidateProperty(stringpropertyName)
{
base.ValidateProperty("",propertyName);
}
}

/// <summary>
/// Asserts that a given <see cref="Action"/> thrown an <see cref="System.ArgumentNullException"/> for the specified parameter.
/// </summary>
/// <param name="action">The input <see cref="Action"/> to invoke.</param>
/// <param name="parameterName">The parameter name to check.</param>
privatestaticvoidAssert(Actionaction,stringparameterName)
{
System.ArgumentNullExceptionexception=Microsoft.VisualStudio.TestTools.UnitTesting.Assert.ThrowsException<System.ArgumentNullException>(action);

Microsoft.VisualStudio.TestTools.UnitTesting.Assert.AreEqual(exception.ParamName,parameterName);
}
}