diff --git a/src/BootstrapBlazor/Components/Rate/Rate.razor.cs b/src/BootstrapBlazor/Components/Rate/Rate.razor.cs
index 5fe375f8ba374a4c05369465e148aad50596cf4e..03823582fd015decbd1c00f81a091014ff253a62 100644
--- a/src/BootstrapBlazor/Components/Rate/Rate.razor.cs
+++ b/src/BootstrapBlazor/Components/Rate/Rate.razor.cs
@@ -92,11 +92,13 @@ public partial class Rate : IDisposable
     /// <param name="disposing"></param>
     protected virtual void Dispose(bool disposing)
     {
-
-        if (disposing && Interop != null)
+        if (disposing)
         {
-            Interop.Dispose();
-            Interop = null;
+            if (Interop != null)
+            {
+                Interop.Dispose();
+                Interop = null;
+            }
         }
     }
 
diff --git a/test/UnitTest/Components/RateTest.cs b/test/UnitTest/Components/RateTest.cs
new file mode 100644
index 0000000000000000000000000000000000000000..11262a6c0a3662781aa052d373435f479f3f8eff
--- /dev/null
+++ b/test/UnitTest/Components/RateTest.cs
@@ -0,0 +1,63 @@
+// Copyright (c) Argo Zhang (argo@163.com). All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+// Website: https://www.blazor.zone or https://argozhang.github.io/
+
+namespace UnitTest.Components;
+
+public class RateTest : BootstrapBlazorTestBase
+{
+    [Fact]
+    public void Value_Ok()
+    {
+        var cut = Context.RenderComponent<Rate>(builder => builder.Add(s => s.Value, 5));
+        cut.Contains("rate");
+    }
+
+    [Fact]
+    public void IsDisable_Ok()
+    {
+        var cut = Context.RenderComponent<Rate>(builder =>
+        {
+            builder.Add(s => s.IsDisable, true);
+            builder.Add(s => s.Value, 5);
+        });
+
+        var ele = cut.Find(".disabled");
+        Assert.NotNull(ele);
+    }
+
+    [Fact]
+    public async Task ValueChanged_Ok()
+    {
+        var ret = false;
+        var cut = Context.RenderComponent<Rate>(builder =>
+        {
+            builder.Add(s => s.Value, 3);
+            builder.Add(s => s.ValueChanged, EventCallback.Factory.Create<int>(this, v =>
+            {
+                ret = true;
+            }));
+        });
+
+        await cut.Instance.Clicked(1);
+        Assert.True(ret);
+    }
+
+    [Fact]
+    public async Task OnValueChanged_Ok()
+    {
+        var ret = false;
+        var cut = Context.RenderComponent<Rate>(builder =>
+        {
+            builder.Add(s => s.OnValueChanged, new Func<int, Task>(v =>
+            {
+                ret = true;
+                return Task.CompletedTask;
+            }));
+            builder.Add(s => s.Value, 5);
+        });
+
+        await cut.Instance.Clicked(1);
+        Assert.True(ret);
+    }
+}