test: 增加单元测试

Author: ArgoZhang

src/BootstrapBlazor/Components/Select/MultiSelect.razor.cs

@@ -621,11 +621,20 @@ private void ResetItems()
     /// <param name="searchText"></param>
     /// <returns></returns>
     [JSInvokable]
-    public Task TriggerOnSearch(string searchText)
+    public async Task TriggerOnSearch(string searchText)
     {
         _itemsCache = null;
         SearchText = searchText;
+        await RefreshVirtualizeElement();
         StateHasChanged();
-        return Task.CompletedTask;
+    }
+
+    private async Task RefreshVirtualizeElement()
+    {
+        if (IsVirtualize && OnQueryAsync != null)
+        {
+            // 通过 ItemProvider 提供数据
+            await _virtualizeElement.RefreshDataAsync();
+        }
     }
 }

test/UnitTest/Components/MultiSelectTest.cs

@@ -867,4 +867,35 @@ public void LoadItems_Ok()
         totalCountProperty?.SetValue(select, 2);
         mi?.Invoke(select, [new ItemsProviderRequest(0, 1, CancellationToken.None)]);
     }
+
+    [Fact]
+    public async Task OnClearAsync_Ok()
+    {
+        var clear = false;
+        var cut = Context.RenderComponent<MultiSelect<string>>(pb =>
+        {
+            pb.Add(a => a.Items, new SelectedItem[]
+            {
+                new("1", "<div>Test1</div>"),
+                new("2", "<div>Test2</div>")
+            });
+            pb.Add(a => a.Value, "2");
+            pb.Add(a => a.ShowSearch, true);
+            pb.Add(a => a.IsClearable, true);
+            pb.Add(a => a.OnClearAsync, () =>
+            {
+                clear = true;
+                return Task.CompletedTask;
+            });
+        });
+
+        var span = cut.Find(".clear-icon");
+        Assert.NotNull(span);
+
+        await cut.InvokeAsync(() =>
+        {
+            span.Click();
+        });
+        Assert.True(clear);
+    }
 }