aspnetcore/test/Microsoft.AspNetCore.Mvc.ViewFeatures.Test/Rendering/HtmlHelperValidationMessageExtensionsTest.cs

// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using Microsoft.AspNetCore.Mvc.Rendering;
using Xunit;

namespace Microsoft.AspNetCore.Mvc.Core
{
    /// <summary>
    /// Test the ValidationMessage extensions in <see cref="HtmlHelperValidationExtensions" /> class.
    /// </summary>
    public class HtmlHelperValidationMessageExtensionsTest
    {
        [Fact]
        public void ValidationMessage_UsesSpecifiedExpression()
        {
            // Arrange
            var helper = DefaultTemplatesUtilities.GetHtmlHelper();

            // Act
            var validationMessageResult = helper.ValidationMessage("Property1");
            
            // Assert
            Assert.Equal(
                "<span class=\"HtmlEncode[[field-validation-valid]]\" data-valmsg-for=\"HtmlEncode[[Property1]]\" data-valmsg-replace=\"HtmlEncode[[true]]\"></span>",
                HtmlContentUtilities.HtmlContentToString(validationMessageResult));
        }

        [Fact]
        public void ValidationMessageFor_UsesSpecifiedExpression()
        {
            // Arrange
            var helper = DefaultTemplatesUtilities.GetHtmlHelper();

            // Act
            var validationMessageForResult = helper.ValidationMessageFor(m => m.Property1);

            // Assert
            Assert.Equal(
                "<span class=\"HtmlEncode[[field-validation-valid]]\" data-valmsg-for=\"HtmlEncode[[Property1]]\" data-valmsg-replace=\"HtmlEncode[[true]]\"></span>",
                HtmlContentUtilities.HtmlContentToString(validationMessageForResult));
        }

        [Fact]
        public void ValidationMessage_UsesSpecifiedMessage()
        {
            // Arrange
            var helper = DefaultTemplatesUtilities.GetHtmlHelper();

            // Act
            var validationMessageResult = helper.ValidationMessage("Property1", message: "Custom Message");

            // Assert
            Assert.Equal(
                "<span class=\"HtmlEncode[[field-validation-valid]]\" data-valmsg-for=\"HtmlEncode[[Property1]]\" data-valmsg-replace=\"HtmlEncode[[false]]\">HtmlEncode[[Custom Message]]</span>",
                HtmlContentUtilities.HtmlContentToString(validationMessageResult));
        }

        [Fact]
        public void ValidationMessageFor_UsesSpecifiedMessage()
        {
            // Arrange
            var helper = DefaultTemplatesUtilities.GetHtmlHelper();

            // Act
            var validationMessageForResult = helper.ValidationMessageFor(m => m.Property1, message: "Custom Message");

            // Assert
            Assert.Equal(
                "<span class=\"HtmlEncode[[field-validation-valid]]\" data-valmsg-for=\"HtmlEncode[[Property1]]\" data-valmsg-replace=\"HtmlEncode[[false]]\">HtmlEncode[[Custom Message]]</span>",
                HtmlContentUtilities.HtmlContentToString(validationMessageForResult));
        }

        [Fact]
        public void ValidationMessage_UsesSpecifiedHtmlAttributes()
        {
            // Arrange
            var helper = DefaultTemplatesUtilities.GetHtmlHelper();

            // Act
            var validationMessageResult = helper.ValidationMessage("Property1", message: "Custom Message", htmlAttributes: new { attr="value" });

            // Assert
            Assert.Equal(
                "<span attr=\"HtmlEncode[[value]]\" class=\"HtmlEncode[[field-validation-valid]]\" data-valmsg-for=\"HtmlEncode[[Property1]]\" data-valmsg-replace=\"HtmlEncode[[false]]\">HtmlEncode[[Custom Message]]</span>",
                HtmlContentUtilities.HtmlContentToString(validationMessageResult));
        }

        [Fact]
        public void ValidationMessageFor_UsesSpecifiedHtmlAttributes()
        {
            // Arrange
            var helper = DefaultTemplatesUtilities.GetHtmlHelper();

            // Act
            var validationMessageForResult = helper.ValidationMessageFor(m => m.Property1, message: "Custom Message", htmlAttributes: new { attr = "value" });

            // Assert
            Assert.Equal(
                "<span attr=\"HtmlEncode[[value]]\" class=\"HtmlEncode[[field-validation-valid]]\" data-valmsg-for=\"HtmlEncode[[Property1]]\" data-valmsg-replace=\"HtmlEncode[[false]]\">HtmlEncode[[Custom Message]]</span>",
                HtmlContentUtilities.HtmlContentToString(validationMessageForResult));
        }

        [Fact]
        public void ValidationMessage_UsesSpecifiedTag()
        {
            // Arrange
            var helper = DefaultTemplatesUtilities.GetHtmlHelper();

            // Act
            var validationMessageResult = helper.ValidationMessage("Property1", message: "Custom Message", tag: "div");

            // Assert
            Assert.Equal(
                "<div class=\"HtmlEncode[[field-validation-valid]]\" data-valmsg-for=\"HtmlEncode[[Property1]]\" data-valmsg-replace=\"HtmlEncode[[false]]\">HtmlEncode[[Custom Message]]</div>",
                HtmlContentUtilities.HtmlContentToString(validationMessageResult));
        }

        [Fact]
        public void ValidationMessageFor_UsesSpecifiedTag()
        {
            // Arrange
            var helper = DefaultTemplatesUtilities.GetHtmlHelper();

            // Act
            var validationMessageForResult = helper.ValidationMessageFor(m => m.Property1, message: "Custom Message", tag: "div");

            // Assert
            Assert.Equal(
                "<div class=\"HtmlEncode[[field-validation-valid]]\" data-valmsg-for=\"HtmlEncode[[Property1]]\" data-valmsg-replace=\"HtmlEncode[[false]]\">HtmlEncode[[Custom Message]]</div>",
                HtmlContentUtilities.HtmlContentToString(validationMessageForResult));
        }
    }
}