Restore SingleQuotes for JSON attributes with regression tests

src/Ramstack.HtmxToolkit/TagHelpers/HtmxRequestTagHelper.cs

@@ -62,7 +62,9 @@ public override Task ProcessAsync(TagHelperContext context, TagHelperOutput outp
         {
             var info = HtmxRequestJsonSerializerContext.Default.HtmxRequestData;
             var request = new HtmlString(JsonSerializer.Serialize(_request, info));
-            output.Attributes.SetAttribute(new TagHelperAttribute("hx-request", request));
+
+            output.Attributes.SetAttribute(
+                new TagHelperAttribute("hx-request", request, HtmlAttributeValueStyle.SingleQuotes));
         }
 
         return Task.CompletedTask;

tests/Ramstack.HtmxToolkit.Tests/HtmxConfigTagHelperTests.cs

@@ -49,6 +49,17 @@ public async Task ProcessAsync_WithDefaults_SerializesEmptyObject()
         Assert.That(GetContent(output), Is.EqualTo("{}"));
     }
 
+    [Test]
+    public async Task ProcessAsync_UsesSingleQuotesForJsonAttribute()
+    {
+        var output = TestHelper.CreateTagHelperOutput();
+        var helper = new HtmxConfigTagHelper(new StubAntiforgery());
+
+        await helper.ProcessAsync(TestHelper.CreateTagHelperContext(), output);
+
+        Assert.That(output.Attributes["content"]!.ValueStyle, Is.EqualTo(HtmlAttributeValueStyle.SingleQuotes));
+    }
+
     [Test]
     public async Task ProcessAsync_SerializesConfiguredOptions()
     {

tests/Ramstack.HtmxToolkit.Tests/HtmxHeaderTagHelperTests.cs

@@ -1,4 +1,5 @@
 using Microsoft.AspNetCore.Html;
+using Microsoft.AspNetCore.Razor.TagHelpers;
 
 namespace Ramstack.HtmxToolkit.Tests;
 
@@ -46,6 +47,23 @@ public void Headers_TreatsNamesAsCaseInsensitive()
         Assert.That(helper.Headers["X-CUSTOM"], Is.EqualTo("second"));
     }
 
+    [Test]
+    public async Task ProcessAsync_UsesSingleQuotesForJsonAttribute()
+    {
+        var output = TestHelper.CreateTagHelperOutput();
+        var helper = new HtmxHeaderTagHelper
+        {
+            Headers =
+            {
+                ["X-Custom"] = "value"
+            }
+        };
+
+        await helper.ProcessAsync(TestHelper.CreateTagHelperContext(), output);
+
+        Assert.That(output.Attributes["hx-headers"]!.ValueStyle, Is.EqualTo(HtmlAttributeValueStyle.SingleQuotes));
+    }
+
     [Test]
     public async Task ProcessAsync_SerializesEmptyDictionary()
     {

tests/Ramstack.HtmxToolkit.Tests/HtmxRequestTagHelperTests.cs

@@ -1,4 +1,5 @@
 using Microsoft.AspNetCore.Html;
+using Microsoft.AspNetCore.Razor.TagHelpers;
 
 namespace Ramstack.HtmxToolkit.Tests;
 
@@ -49,6 +50,20 @@ public async Task ProcessAsync_OmitsUnsetProperties()
         Assert.That(json.ContainsKey("noHeaders"), Is.False);
     }
 
+    [Test]
+    public async Task ProcessAsync_UsesSingleQuotesForJsonAttribute()
+    {
+        var output = TestHelper.CreateTagHelperOutput();
+        var helper = new HtmxRequestTagHelper
+        {
+            Timeout = 500
+        };
+
+        await helper.ProcessAsync(TestHelper.CreateTagHelperContext(), output);
+
+        Assert.That(output.Attributes["hx-request"]!.ValueStyle, Is.EqualTo(HtmlAttributeValueStyle.SingleQuotes));
+    }
+
     [Test]
     public async Task ProcessAsync_OmitsUnsetConfiguration()
     {

tests/Ramstack.HtmxToolkit.Tests/HtmxValsTagHelperTests.cs

@@ -1,4 +1,5 @@
 using Microsoft.AspNetCore.Html;
+using Microsoft.AspNetCore.Razor.TagHelpers;
 
 namespace Ramstack.HtmxToolkit.Tests;
 
@@ -37,6 +38,23 @@ public async Task ProcessAsync_SerializesValues()
         Assert.That(json["sort"].GetString(), Is.EqualTo("title"));
     }
 
+    [Test]
+    public async Task ProcessAsync_UsesSingleQuotesForJsonAttribute()
+    {
+        var output = TestHelper.CreateTagHelperOutput();
+        var helper = new HtmxValsTagHelper
+        {
+            Values =
+            {
+                ["sort"] = "title"
+            }
+        };
+
+        await helper.ProcessAsync(TestHelper.CreateTagHelperContext(), output);
+
+        Assert.That(output.Attributes["hx-vals"]!.ValueStyle, Is.EqualTo(HtmlAttributeValueStyle.SingleQuotes));
+    }
+
     [Test]
     public async Task ProcessAsync_OmitsEmptyDictionary()
     {