test: 测试单元测试

Author: ArgoZhang

src/BootstrapBlazor/Components/Upload/UploadPreviewList.razor.cs

@@ -262,18 +262,5 @@ private async Task OnClickCancel(UploadFile item)
         return builder.Build();
     }
 
-    private string? GetFileExtensions(string fileExtension) => fileExtension switch
-    {
-        ".csv" or ".xls" or ".xlsx" => FileIconExcel,
-        ".doc" or ".docx" or ".dot" or ".dotx" => FileIconDocx,
-        ".ppt" or ".pptx" => FileIconPPT,
-        ".wav" or ".mp3" => FileIconAudio,
-        ".mp4" or ".mov" or ".mkv" => FileIconVideo,
-        ".cs" or ".html" or ".vb" => FileIconCode,
-        ".pdf" => FileIconPdf,
-        ".zip" or ".rar" or ".iso" => FileIconZip,
-        ".txt" or ".log" => FileIconArchive,
-        ".jpg" or ".jpeg" or ".png" or ".bmp" or ".gif" => FileIconImage,
-        _ => FileIconFile
-    };
+    private string? GetFileExtensions(string fileExtension) => FileIconFile;
 }