Add GetAsync tests and fix JsInteropCookieService split

The GetAsyncTests file was created to ensure correct handling of cookie values and values containing '='. The split logic in JsInteropCookieService was updated to consider only two parts when splitting with '=', preventing errors on cookies with '=' characters in values. Additionally, a new test was added to HttpContextCookieServiceTests to verify correct behavior when setting cookies with duplicate keys.

src/BitzArt.Blazor.Cookies/Services/JsInteropCookieService.cs

@@ -11,7 +11,7 @@ public async Task<IEnumerable<Cookie>> GetAllAsync()
 
         return raw.Split("; ").Select(x =>
         {
-            var parts = x.Split("=");
+            var parts = x.Split("=", 2);
             if (parts.Length != 2) throw new Exception($"Invalid cookie format: '{x}'.");
             return new Cookie(parts[0], parts[1]);
         });

tests/BitzArt.Blazor.Cookies.Tests/BitzArt.Blazor.Cookies.Tests.csproj

@@ -11,6 +11,7 @@
 
 	<ItemGroup>
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.0" />
+		<PackageReference Include="Moq" Version="4.20.72" />
 		<PackageReference Include="xunit" Version="2.4.2" />
 		<PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
 			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>

tests/BitzArt.Blazor.Cookies.Tests/GetAsyncTests.cs

@@ -0,0 +1,29 @@
+using BitzArt.Blazor.Cookies;
+using Microsoft.JSInterop;
+using Moq;
+
+namespace BitzArt.Blazor.Auth
+{
+    public class GetAsyncTests
+    {
+        [Fact]
+        public async Task GetAsyncShouldHandleValue()
+        {
+            var jsRuntime = new Mock<IJSRuntime>();
+            jsRuntime.Setup(x => x.InvokeAsync<string>("eval", It.IsAny<object[]>()))
+                .ReturnsAsync("token=value123; path=/");
+            var result = await new JsInteropCookieService(jsRuntime.Object).GetAsync("token");
+            Assert.Equal("value123", result?.Value);
+        }        
+
+        [Fact]
+        public async Task GetAsyncShouldHandleEqualsInValue()
+        {
+            var jsRuntime = new Mock<IJSRuntime>();
+            jsRuntime.Setup(x => x.InvokeAsync<string>("eval", It.IsAny<object[]>()))
+                .ReturnsAsync("token=value=123; path=/");
+            var result = await new JsInteropCookieService(jsRuntime.Object).GetAsync("token");
+            Assert.Equal("value=123", result?.Value);
+        }
+    }
+}