Refactor JsInteropCookieService

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

@@ -9,12 +9,13 @@ public async Task<IEnumerable<Cookie>> GetAllAsync()
         var raw = await js.InvokeAsync<string>("eval", "document.cookie");
         if (string.IsNullOrWhiteSpace(raw)) return [];
 
-        return raw.Split("; ").Select(x =>
-        {
-            var parts = x.Split("=", 2);
-            if (parts.Length != 2) throw new Exception($"Invalid cookie format: '{x}'.");
-            return new Cookie(parts[0], parts[1]);
-        });
+        return raw.Split("; ").Select(GetCookie);
+    }
+
+    private Cookie GetCookie(string raw)
+    {
+        var parts = raw.Split("=", 2);
+        return new Cookie(parts[0], parts[1]);
     }
 
     public async Task<Cookie?> GetAsync(string key)

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

@@ -24,7 +24,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-	  <ProjectReference Include="..\..\src\BitzArt.Blazor.Cookies\BitzArt.Blazor.Cookies.csproj" />
+		<ProjectReference Include="..\..\src\BitzArt.Blazor.Cookies\BitzArt.Blazor.Cookies.csproj" />
 	</ItemGroup>
 
 	<ItemGroup>

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

@@ -0,0 +1,47 @@
+using Microsoft.JSInterop;
+using Moq;
+
+namespace BitzArt.Blazor.Cookies.Tests;
+
+public class JsInteropCookieServiceTests
+{
+    [Fact]
+    public async Task GetAsync_WithCookieNotPresent_ShouldReturnNull()
+    {
+        // Arrange
+        var jsRuntime = new Mock<IJSRuntime>();
+        jsRuntime.Setup(x => x.InvokeAsync<string>("eval", It.IsAny<object[]>()))
+            .ReturnsAsync("");
+
+        var sut = new JsInteropCookieService(jsRuntime.Object);
+
+        // Act
+        var result = await sut.GetAsync("my-cookie");
+
+        // Assert
+        Assert.Null(result);
+    }
+
+    [Theory]
+    [InlineData("my-cookie", "")]
+    [InlineData("my-cookie", "my-value")]
+    [InlineData("my-cookie", "value=123")]
+    [InlineData("my-cookie", "value_a=a value_b=b")]
+    [InlineData("my-cookie", "!@#$%^&*()-_=_-)(*&^%$#@!")]
+    [InlineData("my-cookie", "abc !@#$%^&*()-_ = _-)(*&^%$#@! def 123456789 ghi")]
+    public async Task GetAsync_WithCookiePresent_ShouldReturnValue(string cookieName, string cookieValue)
+    {
+        // Arrange
+        var jsRuntime = new Mock<IJSRuntime>();
+        jsRuntime.Setup(x => x.InvokeAsync<string>("eval", It.IsAny<object[]>()))
+            .ReturnsAsync($"{cookieName}={cookieValue}; path=/");
+
+        var sut = new JsInteropCookieService(jsRuntime.Object);
+
+        // Act
+        var result = await sut.GetAsync(cookieName);
+
+        // Assert
+        Assert.Equal(cookieValue, result?.Value);
+    }
+}