!3789 test(#I6B6FF): add unit test for ModelEqualityComparer

* Merge branch 'main' into test-treeview
* test: add Equals method unit test
* refactor: rename IModelEqualityComparer extension
* refactor: use IModelEqualityComparer interface for code reuse
* fix: update code for Equals parameter
* test: update code remove warning message
* refactor: add nullable constraint
* refactor: remove suggesion
* refactor: add IModelEqualityComparer interface
* refactor: change _itemCache to ItemCache
* test: update GetKeyValue unit test
* refactor: update Equlas check logic make it faster
* refactor: update ModelComparer make it simple
* test: add ExpandIcon unit test

Author: ArgoZhang

test/UnitTest/Components/TableTest.cs

@@ -4550,7 +4550,7 @@ public async Task DynamicContext_EqualityComparer()
         context.EqualityComparer = (x, y) =>
         {
             comparered = true;
-            return x.GetValue("Id") == y.GetValue("Id");
+            return x!.GetValue("Id") == y!.GetValue("Id");
         };
         var cut = Context.RenderComponent<BootstrapBlazorRoot>(pb =>
         {

test/UnitTest/Components/TreeViewTest.cs

@@ -377,6 +377,20 @@ public async Task IsReset_Ok()
         Assert.Equal(2, nodes.Count);
     }
 
+    [Fact]
+    public void ExpandIcon_Ok()
+    {
+        var items = TreeFoo.GetTreeItems();
+        items[1].ExpandIcon = "test-expand-icon";
+        items[1].IsExpand = true;
+        var cut = Context.RenderComponent<TreeView<TreeFoo>>(pb =>
+        {
+            pb.Add(a => a.ShowIcon, true);
+            pb.Add(a => a.Items, items);
+        });
+        cut.Contains("test-expand-icon");
+    }
+
     [Fact]
     public void ModelEqualityComparer_Ok()
     {
@@ -505,12 +519,12 @@ public async Task ClearCheckedItems_Ok()
         await cut.InvokeAsync(() => checkbox[0].Click());
 
         Assert.Contains("is-checked", cut.Markup);
-        var ischecked = cut.Instance.GetCheckedItems().Count() != 0;
+        var ischecked = cut.Instance.GetCheckedItems().Any();
         Assert.True(ischecked);
 
         await cut.InvokeAsync(() => cut.Instance.ClearCheckedItems());
         Assert.DoesNotContain("is-checked", cut.Markup);
-        var nochecked = cut.Instance.GetCheckedItems().Count() == 0;
+        var nochecked = !cut.Instance.GetCheckedItems().Any();
         Assert.True(nochecked);
     }
 

test/UnitTest/Misc/ModelEqualityComparerTest.cs

@@ -0,0 +1,18 @@
+// 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/
+
+using BootstrapBlazor.Shared;
+
+namespace UnitTest.Misc;
+
+public class ModelEqualityComparerTest
+{
+    [Fact]
+    public void Equals_Ok()
+    {
+        Assert.True(IModelEqualityComparerExtensions.Equals<Foo>(null!, null, null));
+        Assert.False(IModelEqualityComparerExtensions.Equals<Foo>(null!, null, new Foo()));
+        Assert.False(IModelEqualityComparerExtensions.Equals<Foo>(null!, new Foo(), null));
+    }
+}

test/UnitTest/Utils/UtilityTest.cs

@@ -37,7 +37,7 @@ public void GetKeyValue_CustomKeyAttribute()
     public void GetKeyValue_Null()
     {
         Foo? foo = null;
-        Assert.Throws<ArgumentNullException>(() => Utility.GetKeyValue<object?, int>(foo));
+        Assert.Equal(0, Utility.GetKeyValue<object?, int>(foo));
     }
 
     [Fact]