public async Task BindModel_ReturnsFailedResult_EvenIfSelectedBinderReturnsNull()
{
// Arrange
var bindingContext = GetBindingContext(typeof(Person), binderType: typeof(NullModelBinder));
var binder = new BinderTypeModelBinder(typeof(NullModelBinder));
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.False(bindingContext.Result.IsModelSet);
}
/// <summary>
/// Creates a <see cref="T:Microsoft.AspNetCore.Mvc.ModelBinding.IModelBinder" /> based on <see cref="T:Microsoft.AspNetCore.Mvc.ModelBinding.ModelBinderProviderContext" />.
/// </summary>
/// <param name="context">The <see cref="T:Microsoft.AspNetCore.Mvc.ModelBinding.ModelBinderProviderContext" />.</param>
/// <returns>An <see cref="T:Microsoft.AspNetCore.Mvc.ModelBinding.IModelBinder" />.</returns>
/// <exception cref="ArgumentNullException">context</exception>
public IModelBinder GetBinder(ModelBinderProviderContext context)
{
IModelBinder binder = null;
if (context is null)
{
throw new ArgumentNullException(nameof(context));
}
if (context.Metadata.ModelType == typeof(VerifyResponse))
{
binder = new BinderTypeModelBinder(typeof(HCaptchaModelBinder));
}
return(binder);
}
public IModelBinder GetBinder(ModelBinderProviderContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (context.Metadata.ModelType == typeof(Book))
{
var binder = new BinderTypeModelBinder(typeof(BookBinder));
return(binder);
}
return(null);
}
public async Task BindModel_CallsBindAsync_OnProvidedModelBinder()
{
// Arrange
var bindingContext = GetBindingContext(typeof(Person), binderType: typeof(NotNullModelBinder));
var model = new Person();
var serviceProvider = new ServiceCollection()
.AddSingleton <IModelBinder, NullModelBinder>()
.BuildServiceProvider();
bindingContext.HttpContext.RequestServices = serviceProvider;
var binder = new BinderTypeModelBinder(typeof(NotNullModelBinder));
// Act
await binder.BindModelAsync(bindingContext);
// Assert
var person = (Person)bindingContext.Result.Model;
Assert.Equal(model.Age, person.Age);
Assert.Equal(model.Name, person.Name);
}
