feat: 添加下载进度条

server.test/ProgressTrackerTest.cs

@@ -0,0 +1,99 @@
+using Microsoft.AspNetCore.SignalR;
+using Moq;
+using server.Hubs;
+using server.Services;
+
+public class ProgressTrackerTest
+{
+    [Fact]
+    public async Task Test_ProgressReporter_Basic()
+    {
+        int reportedValue = -1;
+        var reporter = new ProgressReporter(async v => { reportedValue = v; await Task.CompletedTask; }, 0, 100, 10);
+
+        // Report
+        reporter.Report(50);
+        Assert.Equal(50, reporter.Progress);
+        Assert.Equal(ProgressStatus.InProgress, reporter.Status);
+        Assert.Equal(50, reportedValue);
+
+        // Increase by step
+        reporter.Increase();
+        Assert.Equal(60, reporter.Progress);
+
+        // Increase by value
+        reporter.Increase(20);
+        Assert.Equal(80, reporter.Progress);
+
+        // Finish
+        reporter.Finish();
+        Assert.Equal(ProgressStatus.Completed, reporter.Status);
+        Assert.Equal(100, reporter.Progress);
+
+        // Cancel
+        reporter = new ProgressReporter(async v => { reportedValue = v; await Task.CompletedTask; }, 0, 100, 10);
+        reporter.Cancel();
+        Assert.Equal(ProgressStatus.Canceled, reporter.Status);
+        Assert.Equal("User Cancelled", reporter.ErrorMessage);
+
+        // Error
+        reporter = new ProgressReporter(async v => { reportedValue = v; await Task.CompletedTask; }, 0, 100, 10);
+        reporter.Error("Test Error");
+        Assert.Equal(ProgressStatus.Failed, reporter.Status);
+        Assert.Equal("Test Error", reporter.ErrorMessage);
+
+        // CreateChild
+        var parent = new ProgressReporter(async v => { await Task.CompletedTask; }, 10, 100, 5);
+        var child = parent.CreateChild(50, 5);
+        Assert.Equal(ProgressStatus.Pending, child.Status);
+        Assert.NotNull(child);
+
+        // Child Increase
+        child.Increase();
+        Assert.Equal(ProgressStatus.InProgress, child.Status);
+        Assert.Equal(20, child.ProgressPercent);
+        Assert.Equal(20, parent.Progress);
+
+        // Child Complete
+        child.Finish();
+        Assert.Equal(ProgressStatus.Completed, child.Status);
+        Assert.Equal(100, child.ProgressPercent);
+        Assert.Equal(60, parent.Progress);
+    }
+
+    [Fact]
+    public void Test_ProgressTrackerService_Basic()
+    {
+        // Mock SignalR HubContext
+        var mockHubContext = new Mock<IHubContext<ProgressHub, IProgressReceiver>>();
+        var service = new ProgressTrackerService(mockHubContext.Object);
+
+        // CreateTask
+        var (taskId, reporter) = service.CreateTask();
+        Assert.NotNull(taskId);
+        Assert.NotNull(reporter);
+
+        // GetReporter
+        var optReporter = service.GetReporter(taskId);
+        Assert.True(optReporter.HasValue);
+        Assert.Equal(reporter, optReporter.Value);
+
+        // GetProgressStatus
+        var optStatus = service.GetProgressStatus(taskId);
+        Assert.True(optStatus.HasValue);
+        Assert.Equal(ProgressStatus.Pending, optStatus.Value);
+
+        // BindTask
+        var bindResult = service.BindTask(taskId, "conn1");
+        Assert.True(bindResult);
+
+        // CancelTask
+        var cancelResult = service.CancelTask(taskId);
+        Assert.True(cancelResult);
+
+        // After cancel, status should be Cancelled
+        var optStatus2 = service.GetProgressStatus(taskId);
+        Assert.True(optStatus2.HasValue);
+        Assert.Equal(ProgressStatus.Canceled, optStatus2.Value);
+    }
+}