Add unit tests

framework/test/Volo.Abp.AspNetCore.Mvc.Tests/Volo/Abp/AspNetCore/Mvc/ContentFormatters/RemoteStreamContentTestController.cs

@@ -19,6 +19,17 @@ public class RemoteStreamContentTestController : AbpController
         memoryStream.Position = 0;
         return new RemoteStreamContent(memoryStream, "download.rtf", "application/rtf");
     }
+    
+    [HttpGet]
+    [Route("Download-With-Custom-Content-Disposition")]
+    public async Task<IRemoteStreamContent> Download_With_Custom_Content_Disposition_Async()
+    {
+        var memoryStream = new MemoryStream();
+        await memoryStream.WriteAsync(Encoding.UTF8.GetBytes("DownloadAsync"));
+        memoryStream.Position = 0;
+        Response.Headers.Add("Content-Disposition", "attachment; filename=myDownload.rtf");
+        return new RemoteStreamContent(memoryStream, "download.rtf", "application/rtf");
+    }
 
     [HttpPost]
     [Route("Upload")]

framework/test/Volo.Abp.AspNetCore.Mvc.Tests/Volo/Abp/AspNetCore/Mvc/ContentFormatters/RemoteStreamContentTestController_Tests.cs

@@ -19,6 +19,16 @@ public class RemoteStreamContentTestController_Tests : AspNetCoreMvcTestBase
         result.Content.Headers.ContentLength.ShouldBe("DownloadAsync".Length);
         (await result.Content.ReadAsStringAsync()).ShouldBe("DownloadAsync");
     }
+    
+     [Fact]
+    public async Task Download_With_Custom_Content_Disposition_Async()
+    {
+        var result = await GetResponseAsync("/api/remote-stream-content-test/download-with-custom-content-disposition");
+        result.Content.Headers.ContentType?.ToString().ShouldBe("application/rtf");
+        result.Content.Headers.ContentDisposition?.FileName.ShouldBe("myDownload.rtf");
+        result.Content.Headers.ContentLength.ShouldBe("DownloadAsync".Length);
+        (await result.Content.ReadAsStringAsync()).ShouldBe("DownloadAsync");
+    }
 
     [Fact]
     public async Task UploadAsync()