File: ValidationAttributeAdapterOfTAttributeTest.cs
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Project: src\src\Mvc\Mvc.DataAnnotations\test\Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj (Microsoft.AspNetCore.Mvc.DataAnnotations.Test)
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.ComponentModel.DataAnnotations;
using Microsoft.AspNetCore.Mvc.ModelBinding;
using Microsoft.AspNetCore.Mvc.ModelBinding.Validation;
using Microsoft.Extensions.Localization;
using Moq;
 
namespace Microsoft.AspNetCore.Mvc.DataAnnotations;
 
public class ValidationAttributeAdapterOfTAttributeTest
{
    [Fact]
    public void GetErrorMessage_DontLocalizeWhenErrorMessageResourceTypeGiven()
    {
        // Arrange
        var metadataProvider = TestModelMetadataProvider.CreateDefaultProvider();
 
        var modelMetadata = metadataProvider.GetMetadataForProperty(typeof(string), "Length");
 
        var stringLocalizer = new Mock<IStringLocalizer>(MockBehavior.Loose);
 
        var attribute = new TestValidationAttribute();
        var adapter = new TestValidationAttributeAdapter(attribute, stringLocalizer.Object);
 
        var actionContext = new ActionContext();
        var validationContext = new ModelValidationContext(
            actionContext,
            modelMetadata,
            metadataProvider,
            container: null,
            model: null);
 
        // Act
        adapter.GetErrorMessage(validationContext);
 
        // Assert
        Assert.True(attribute.Formatted);
    }
 
    public class TestValidationAttribute : ValidationAttribute
    {
        public bool Formatted = false;
 
        public override string FormatErrorMessage(string name)
        {
            Formatted = true;
            return base.FormatErrorMessage(name);
        }
    }
 
    public class TestValidationAttributeAdapter : ValidationAttributeAdapter<TestValidationAttribute>
    {
        public TestValidationAttributeAdapter(TestValidationAttribute attribute, IStringLocalizer stringLocalizer)
            : base(attribute, stringLocalizer)
        { }
 
        public override void AddValidation(ClientModelValidationContext context)
        {
            throw new NotImplementedException();
        }
 
        public string GetErrorMessage(ModelValidationContextBase validationContext)
        {
            var displayName = validationContext.ModelMetadata.GetDisplayName();
            return GetErrorMessage(validationContext.ModelMetadata, displayName);
        }
    }
}