Date Format issue - option 2 - Adjust hardcoded date strings to match with culture - compare to main

tests/Sitecore.AspNetCore.SDK.RenderingEngine.Integration.Tests/Fixtures/Binding/ViewFieldsBindingFixture.cs

@@ -1,4 +1,5 @@
-using System.Net;
+using System.Globalization;
+using System.Net;
 using FluentAssertions;
 using HtmlAgilityPack;
 using Microsoft.AspNetCore.TestHost;
@@ -59,6 +60,8 @@ public async Task SitecoreLayoutModelBinders_BindDataCorrectly()
 
         HttpClient client = _server.CreateClient();
 
+        string expectedFormattedDate = DateTime.Parse("12.12.19", CultureInfo.InvariantCulture).ToString("d", CultureInfo.CurrentCulture);
+
         // Act
         string response = await client.GetStringAsync(new Uri("/", UriKind.Relative));
 
@@ -75,7 +78,7 @@ public async Task SitecoreLayoutModelBinders_BindDataCorrectly()
         sectionNode.ChildNodes.First(n => n.Name.Equals("p", StringComparison.OrdinalIgnoreCase)).InnerText
             .Should().BeEmpty();
 
-        sectionNode.ChildNodes.First(n => n.Name.Equals("textarea", StringComparison.OrdinalIgnoreCase)).InnerText.Should().Contain("12/12/2019");
+        sectionNode.ChildNodes.First(n => n.Name.Equals("textarea", StringComparison.OrdinalIgnoreCase)).InnerText.Should().Contain(expectedFormattedDate);
 
         sectionNode.ChildNodes.First(n => n.Name.Equals("span", StringComparison.OrdinalIgnoreCase)).InnerHtml
             .Should().Be(TestConstants.TestMultilineFieldValue.Replace(Environment.NewLine, "<br>", StringComparison.OrdinalIgnoreCase));

tests/Sitecore.AspNetCore.SDK.RenderingEngine.Integration.Tests/Fixtures/TagHelpers/DateFieldTagHelperFixture.cs

@@ -92,11 +92,14 @@ public async Task DateTagHelper_GeneratesProperDate()
         doc.LoadHtml(response);
         HtmlNode? sectionNode = doc.DocumentNode.ChildNodes.First(n => n.HasClass("component-with-dates"));
 
-        // Assert
-        sectionNode.ChildNodes[1].InnerHtml.Should().Be("05/04/2012");
-        sectionNode.ChildNodes[3].InnerHtml.Should().Be("05/04/2012 00:00:00");
+        // Assert - Use culture-aware date formatting instead of hardcoded values
+        sectionNode.ChildNodes[1].InnerHtml.Should().Be(TestConstants.DateTimeValue.ToString("d", CultureInfo.CurrentCulture));
+        sectionNode.ChildNodes[3].InnerHtml.Should().Be(TestConstants.DateTimeValue.ToString("G", CultureInfo.CurrentCulture));
         sectionNode.ChildNodes[5].InnerHtml.Should().Be(TestConstants.DateTimeValue.ToString(CultureInfo.CurrentCulture));
-        sectionNode.ChildNodes[9].InnerHtml.Should().Contain("04.05.2012");
+
+        // For the custom format, use the specific culture format expected
+        string expectedCustomFormat = TestConstants.DateTimeValue.ToString("dd.MM.yyyy", CultureInfo.InvariantCulture);
+        sectionNode.ChildNodes[9].InnerHtml.Should().Contain(expectedCustomFormat);
     }
 
     public void Dispose()

tests/Sitecore.AspNetCore.SDK.RenderingEngine.Integration.Tests/Fixtures/TagHelpers/RichTextFieldTagHelperFixture.cs

@@ -1,4 +1,5 @@
-using System.Net;
+using System.Globalization;
+using System.Net;
 using System.Text.Encodings.Web;
 using FluentAssertions;
 using HtmlAgilityPack;
@@ -70,7 +71,7 @@ public async Task RichTextFieldTagHelper_DoesNotResetOtherTagHelperOutput()
 
         // Assert
         // check scenario that RichTextTagHelper does not reset values of another helpers.
-        sectionNode.ChildNodes.First(n => n.Name.Equals("textarea", StringComparison.OrdinalIgnoreCase)).InnerText.Should().Contain("12/12/2019");
+        sectionNode.ChildNodes.First(n => n.Name.Equals("textarea", StringComparison.OrdinalIgnoreCase)).InnerText.Should().Contain(DateTime.Parse("2019-12-12").ToString("d", CultureInfo.CurrentCulture));
     }
 
     [Fact]

tests/data/Sitecore.AspNetCore.SDK.TestData/TestConstants.cs

@@ -15,7 +15,6 @@ public static class TestConstants
     public const string RichTextFieldValue1 = "<p>This is a test</p>";
     public const string RichTextFieldValue2 = "<p>This is another test</p>";
     public const string LinkFieldValue = "<a class=\"sample\" href=\"/\" rel=\"noopener noreferrer\" target=\"_blank\" title=\"title\">Sample Link</a>";
-    public const string DateFieldValue = "05/04/2012";
     public const string ImageFieldValue = "<img alt=\"sample\" src=\"sample.png\">";
     public const string AllFieldsImageValue = "<img src=\"sample.png\" alt=\"sample\">";
     public const string MediaLibraryItemImageFieldValue = "<figure style='background-image: url(https://cdinstance/en/-/jssmedia/094AED0302E7486880CB19926661FB77.ashx?mw=100&amp;mh=50)'>Text</figure>";
@@ -90,6 +89,9 @@ public static class TestConstants
     public const string HeadlessSxaLayoutId = "96e5f4ba-a2cf-4a4c-a4e7-64da88226362";
 
     public const string PagesSampleConfigRequest = "{}";
+    public static readonly DateTime DateFieldValueAsDateTime = new DateTime(2012, 5, 4);
+
+    public static string DateFieldValue => DateTimeValue.ToString("d", CultureInfo.CurrentCulture);
 
     public static GraphQLResponse<EditingLayoutQueryResponse> SimpleEditingLayoutQueryResponse
     {