refactor: 增加 SearchFilterAction 单元测试

Author: ArgoZhang

src/BootstrapBlazor/Components/Filters/IFilterAction.cs

@@ -14,15 +14,15 @@ namespace BootstrapBlazor.Components;
 public interface IFilterAction
 {
     /// <summary>
-    /// 获得 IFilter 实例中的过滤条件集合
+    /// 重置过滤条件方法
     /// </summary>
-    /// <returns></returns>
-    FilterKeyValueAction GetFilterConditions();
+    void Reset();
 
     /// <summary>
-    /// 重置过滤条件方法
+    /// 获得 IFilter 实例中的过滤条件集合
     /// </summary>
-    void Reset();
+    /// <returns></returns>
+    FilterKeyValueAction GetFilterConditions();
 
     /// <summary>
     /// Override existing filter conditions

src/BootstrapBlazor/Components/Filters/SearchFilterAction.cs

@@ -43,7 +43,7 @@ public void Reset()
     /// <returns></returns>
     public Task SetFilterConditionsAsync(FilterKeyValueAction filter)
     {
-        var first = filter.Filters?.FirstOrDefault() ?? filter;
+        var first = filter.Filters.FirstOrDefault() ?? filter;
         if (first.FieldKey == Name)
         {
             Value = first.FieldValue;

test/UnitTest/Components/SearchFilterActionTest.cs

@@ -0,0 +1,39 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the Apache 2.0 License
+// See the LICENSE file in the project root for more information.
+// Maintainer: Argo Zhang(argo@live.ca) Website: https://www.blazor.zone
+
+namespace UnitTest.Components;
+
+public class SearchFilterActionTest
+{
+    [Fact]
+    public async Task SearchFilterAction_Ok()
+    {
+        var filter = new SearchFilterAction("Name", "Argo");
+        Assert.Equal("Argo", filter.Value);
+
+        filter.Reset();
+        Assert.Null(filter.Value);
+
+        await filter.SetFilterConditionsAsync(new FilterKeyValueAction
+        {
+            FieldKey = "Name",
+            FieldValue = "Argo Zhang"
+        });
+        Assert.Equal("Argo Zhang", filter.Value);
+
+        await filter.SetFilterConditionsAsync(new FilterKeyValueAction
+        {
+            Filters =
+            [
+                new FilterKeyValueAction
+                {
+                    FieldKey = "Name",
+                    FieldValue = "Argo"
+                }
+            ]
+        });
+        Assert.Equal("Argo", filter.Value);
+    }
+}