修复流程图编辑器界面及初步的功能

XplorePlane.Tests/Pipeline/PipelineEditorViewModelTests.cs

@@ -1,4 +1,7 @@
 using Moq;
+using System;
+using System.IO;
+using System.Windows.Media.Imaging;
 using XP.Common.Logging.Interfaces;
 using XplorePlane.Models;
 using XplorePlane.Services;
@@ -104,6 +107,36 @@ namespace XplorePlane.Tests.Pipeline
                 Assert.Equal(i, vm.PipelineNodes[i].Order);
         }
 
+        [Fact]
+        public void LoadImageFromFile_SetsSourceImage()
+        {
+            var vm = CreateVm();
+            var tempPath = Path.Combine(Path.GetTempPath(), Guid.NewGuid() + ".png");
+
+            try
+            {
+                var bitmap = TestHelpers.CreateTestBitmap(8, 8);
+                var encoder = new PngBitmapEncoder();
+                encoder.Frames.Add(BitmapFrame.Create(bitmap));
+
+                using (var stream = File.Create(tempPath))
+                {
+                    encoder.Save(stream);
+                }
+
+                vm.LoadImageFromFile(tempPath);
+
+                Assert.NotNull(vm.SourceImage);
+                Assert.NotNull(vm.PreviewImage);
+                Assert.Contains(Path.GetFileName(tempPath), vm.StatusMessage);
+            }
+            finally
+            {
+                if (File.Exists(tempPath))
+                    File.Delete(tempPath);
+            }
+        }
+
         // ── 6.2 RemoveOperatorCommand ─────────────────────────────────
 
         [Fact]

XplorePlane.Tests/Services/ImageProcessingServiceTests.cs

@@ -0,0 +1,28 @@
+using Moq;
+using XP.Common.Logging.Interfaces;
+using XplorePlane.Services;
+using Xunit;
+
+namespace XplorePlane.Tests.Services
+{
+    public class ImageProcessingServiceTests
+    {
+        [Fact]
+        public void DiscoverProcessors_LoadsKnownProcessors()
+        {
+            var logger = new Mock<ILoggerService>();
+            logger.Setup(l => l.ForModule<ImageProcessingService>()).Returns(logger.Object);
+
+            using var service = new ImageProcessingService(logger.Object);
+
+            var processors = service.GetAvailableProcessors();
+
+            Assert.Contains("GaussianBlur", processors);
+            Assert.Contains("ShockFilter", processors);
+            Assert.Contains("BandPassFilter", processors);
+            Assert.Contains("Division", processors);
+            Assert.Contains("Contour", processors);
+            Assert.True(processors.Count >= 20, $"Expected many discovered processors, got {processors.Count}.");
+        }
+    }
+}