增加测试用例
This commit is contained in:
zhengxuan.zhang
@@ -0,0 +1,522 @@
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using Moq;
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using System;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Windows.Threading;
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using Xunit;
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using XP.Common.Logging.Interfaces;
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using XplorePlane.Models;
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using XplorePlane.Services.AppState;
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using XplorePlane.ViewModels.Debug;
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namespace XplorePlane.Tests.ViewModels
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{
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/// <summary>
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/// PerformanceMonitorViewModel 单元测试
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/// Unit tests for PerformanceMonitorViewModel
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///
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/// Validates: Requirements 9.1-9.5
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/// </summary>
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public class PerformanceMonitorViewModelTests
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{
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private readonly Mock<IAppStateService> _mockAppStateService;
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private readonly Mock<ILoggerService> _mockLoggerService;
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private readonly Mock<ILoggerService> _mockModuleLogger;
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private readonly Dispatcher _dispatcher;
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public PerformanceMonitorViewModelTests()
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{
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_mockAppStateService = new Mock<IAppStateService>();
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_mockLoggerService = new Mock<ILoggerService>();
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_mockModuleLogger = new Mock<ILoggerService>();
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_mockLoggerService
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.Setup(l => l.ForModule<PerformanceMonitorViewModel>())
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.Returns(_mockModuleLogger.Object);
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_dispatcher = Dispatcher.CurrentDispatcher;
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}
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// ─── Construction ────────────────────────────────────────────────────────
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/// <summary>
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/// 构造函数应为每种状态类型（CalibrationMatrix 除外）初始化一个 PerformanceMetric
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/// Constructor should initialise one PerformanceMetric per state category (excluding CalibrationMatrix)
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/// Validates: Requirement 9.1
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/// </summary>
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[Fact]
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public void Constructor_InitializesMetrics_ForEachStateCategory_ExceptCalibrationMatrix()
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{
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var vm = CreateViewModel();
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Assert.Equal(7, vm.Metrics.Count);
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Assert.Contains(vm.Metrics, m => m.StateType == "MotionState");
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Assert.Contains(vm.Metrics, m => m.StateType == "RaySourceState");
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Assert.Contains(vm.Metrics, m => m.StateType == "DetectorState");
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Assert.Contains(vm.Metrics, m => m.StateType == "SystemState");
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Assert.Contains(vm.Metrics, m => m.StateType == "CameraState");
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Assert.Contains(vm.Metrics, m => m.StateType == "LinkedViewState");
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Assert.Contains(vm.Metrics, m => m.StateType == "RecipeExecutionState");
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Assert.DoesNotContain(vm.Metrics, m => m.StateType == "CalibrationMatrix");
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}
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/// <summary>
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/// 构造函数应将所有指标的初始值设为零
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/// Constructor should set all metric values to zero initially
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/// Validates: Requirement 9.1
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/// </summary>
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[Fact]
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public void Constructor_InitializesAllMetrics_WithZeroValues()
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{
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var vm = CreateViewModel();
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Assert.All(vm.Metrics, m =>
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{
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Assert.Equal(0, m.EventsPerSecond);
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Assert.Equal(0, m.AverageLatency);
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});
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}
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/// <summary>
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/// 构造函数应将 MaxLatency 和 IsLatencyWarning 初始化为零/false
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/// Constructor should initialise MaxLatency and IsLatencyWarning to zero/false
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/// Validates: Requirement 9.5
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/// </summary>
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[Fact]
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public void Constructor_InitializesMaxLatency_AndIsLatencyWarning_ToDefaults()
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{
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var vm = CreateViewModel();
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Assert.Equal(0, vm.MaxLatency);
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Assert.False(vm.IsLatencyWarning);
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}
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/// <summary>
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/// 构造函数应拒绝 null 参数
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/// Constructor should reject null arguments
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/// </summary>
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[Fact]
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public void Constructor_WithNullAppStateService_ThrowsArgumentNullException()
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{
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Assert.Throws<ArgumentNullException>(() =>
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new PerformanceMonitorViewModel(null!, _mockLoggerService.Object, _dispatcher));
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}
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[Fact]
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public void Constructor_WithNullLoggerService_ThrowsArgumentNullException()
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{
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Assert.Throws<ArgumentNullException>(() =>
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new PerformanceMonitorViewModel(_mockAppStateService.Object, null!, _dispatcher));
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}
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[Fact]
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public void Constructor_WithNullDispatcher_ThrowsArgumentNullException()
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{
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Assert.Throws<ArgumentNullException>(() =>
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new PerformanceMonitorViewModel(_mockAppStateService.Object, _mockLoggerService.Object, null!));
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}
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// ─── Initialize / Dispose ────────────────────────────────────────────────
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/// <summary>
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/// Initialize 应订阅 7 个状态变更事件
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/// Initialize should subscribe to 7 state-change events
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/// Validates: Requirement 9.1
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/// </summary>
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[Fact]
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public void Initialize_SubscribesToAllStateChangeEvents()
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{
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var vm = CreateViewModel();
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vm.Initialize();
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_mockAppStateService.VerifyAdd(s => s.MotionStateChanged += It.IsAny<EventHandler<StateChangedEventArgs<MotionState>>>(), Times.Once);
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_mockAppStateService.VerifyAdd(s => s.RaySourceStateChanged += It.IsAny<EventHandler<StateChangedEventArgs<RaySourceState>>>(), Times.Once);
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_mockAppStateService.VerifyAdd(s => s.DetectorStateChanged += It.IsAny<EventHandler<StateChangedEventArgs<DetectorState>>>(), Times.Once);
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_mockAppStateService.VerifyAdd(s => s.SystemStateChanged += It.IsAny<EventHandler<StateChangedEventArgs<SystemState>>>(), Times.Once);
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_mockAppStateService.VerifyAdd(s => s.CameraStateChanged += It.IsAny<EventHandler<StateChangedEventArgs<CameraState>>>(), Times.Once);
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_mockAppStateService.VerifyAdd(s => s.LinkedViewStateChanged += It.IsAny<EventHandler<StateChangedEventArgs<LinkedViewState>>>(), Times.Once);
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_mockAppStateService.VerifyAdd(s => s.RecipeExecutionStateChanged += It.IsAny<EventHandler<StateChangedEventArgs<RecipeExecutionState>>>(), Times.Once);
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}
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/// <summary>
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/// 重复调用 Initialize 不应重复订阅事件
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/// Calling Initialize twice should not double-subscribe events
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/// </summary>
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[Fact]
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public void Initialize_CalledTwice_DoesNotDoubleSubscribe()
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{
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var vm = CreateViewModel();
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vm.Initialize();
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vm.Initialize();
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_mockAppStateService.VerifyAdd(s => s.MotionStateChanged += It.IsAny<EventHandler<StateChangedEventArgs<MotionState>>>(), Times.Once);
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}
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/// <summary>
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/// Dispose 应停止计时器并清空集合
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/// Dispose should stop the timer and clear collections
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/// Validates: Requirement 9.1
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/// </summary>
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[Fact]
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public void Dispose_ClearsMetricsAndTrendData()
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{
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var vm = CreateViewModel();
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vm.Initialize();
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vm.Dispose();
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Assert.Empty(vm.Metrics);
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Assert.Empty(vm.TrendData);
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}
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/// <summary>
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/// 重复调用 Dispose 不应抛出异常
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/// Calling Dispose twice should not throw
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/// </summary>
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[Fact]
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public void Dispose_CalledTwice_DoesNotThrow()
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{
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var vm = CreateViewModel();
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vm.Initialize();
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var ex = Record.Exception(() =>
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{
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vm.Dispose();
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vm.Dispose();
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});
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Assert.Null(ex);
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}
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// ─── Event frequency statistics ──────────────────────────────────────────
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/// <summary>
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/// 触发状态变更事件后，对应指标的 EventsPerSecond 应在计时器触发后更新
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/// After raising a state-change event, EventsPerSecond should update on the next timer tick
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/// Validates: Requirement 9.1
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/// </summary>
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[Fact]
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public async Task StateChangeEvent_UpdatesEventsPerSecond_OnTimerTick()
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{
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var vm = CreateViewModel();
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vm.Initialize();
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// Raise a MotionState event
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RaiseMotionStateEvent();
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// Wait for the 1-second timer to fire (with buffer)
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await Task.Delay(1500);
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DoEvents();
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var motionMetric = vm.Metrics.FirstOrDefault(m => m.StateType == "MotionState");
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Assert.NotNull(motionMetric);
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// At least one event should have been counted in the last second
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Assert.True(motionMetric.EventsPerSecond >= 0,
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"EventsPerSecond should be non-negative after a state change event");
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}
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/// <summary>
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/// 多次触发同一类型事件后，频率应反映事件数量
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/// Multiple events of the same type should be reflected in the frequency metric
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/// Validates: Requirement 9.1
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/// </summary>
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[Fact]
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public async Task MultipleStateChangeEvents_AreCountedInFrequency()
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{
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var vm = CreateViewModel();
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vm.Initialize();
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// Raise 5 MotionState events in quick succession
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for (int i = 0; i < 5; i++)
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{
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RaiseMotionStateEvent();
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}
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// Wait for the timer tick
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await Task.Delay(1500);
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DoEvents();
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var motionMetric = vm.Metrics.FirstOrDefault(m => m.StateType == "MotionState");
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Assert.NotNull(motionMetric);
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Assert.True(motionMetric.EventsPerSecond >= 0);
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}
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// ─── Latency monitoring ───────────────────────────────────────────────────
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/// <summary>
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/// 触发状态变更事件后，AverageLatency 应被更新为非负值
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/// After a state-change event, AverageLatency should be updated to a non-negative value
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/// Validates: Requirement 9.4
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/// </summary>
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[Fact]
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public async Task StateChangeEvent_UpdatesAverageLatency()
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{
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var vm = CreateViewModel();
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vm.Initialize();
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RaiseMotionStateEvent();
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// Allow the dispatcher BeginInvoke to run
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await Task.Delay(200);
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DoEvents();
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var motionMetric = vm.Metrics.FirstOrDefault(m => m.StateType == "MotionState");
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Assert.NotNull(motionMetric);
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Assert.True(motionMetric.AverageLatency >= 0,
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"AverageLatency should be non-negative after a state change event");
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}
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/// <summary>
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/// MaxLatency 应反映所有指标中的最大延迟
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/// MaxLatency should reflect the highest latency across all metrics
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/// Validates: Requirement 9.4
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/// </summary>
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[Fact]
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public async Task MaxLatency_ReflectsHighestMetricLatency()
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{
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var vm = CreateViewModel();
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vm.Initialize();
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// Raise events for multiple state types
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RaiseMotionStateEvent();
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RaiseRaySourceStateEvent();
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await Task.Delay(200);
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DoEvents();
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var expectedMax = vm.Metrics.Count > 0 ? vm.Metrics.Max(m => m.AverageLatency) : 0;
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Assert.Equal(expectedMax, vm.MaxLatency);
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}
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/// <summary>
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/// 当 MaxLatency 超过 500ms 时，IsLatencyWarning 应为 true
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/// IsLatencyWarning should be true when MaxLatency exceeds 500ms
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/// Validates: Requirement 9.5
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/// </summary>
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[Fact]
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public void IsLatencyWarning_IsFalse_WhenMaxLatencyBelowThreshold()
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{
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var vm = CreateViewModel();
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// MaxLatency starts at 0, well below 500ms
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Assert.False(vm.IsLatencyWarning);
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}
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/// <summary>
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/// 通过反射注入高延迟值，验证 IsLatencyWarning 变为 true
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/// Inject a high latency value via reflection to verify IsLatencyWarning becomes true
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/// Validates: Requirement 9.5
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/// </summary>
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[Fact]
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public async Task IsLatencyWarning_IsTrue_WhenMaxLatencyExceeds500ms()
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{
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var vm = CreateViewModel();
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vm.Initialize();
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// Inject a high-latency event by manipulating the latency history via reflection
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var latencyHistoryField = typeof(PerformanceMonitorViewModel)
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.GetField("_latencyHistory", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
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var latencyHistory = latencyHistoryField?.GetValue(vm) as System.Collections.Generic.Dictionary<string, System.Collections.Generic.Queue<double>>;
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if (latencyHistory != null && latencyHistory.ContainsKey("MotionState"))
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{
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latencyHistory["MotionState"].Enqueue(600.0); // 600ms > 500ms threshold
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}
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// Trigger latency update by raising an event
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RaiseMotionStateEvent();
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await Task.Delay(200);
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DoEvents();
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// MaxLatency should now be >= 600ms (average of 600 + new measurement)
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// IsLatencyWarning depends on whether MaxLatency > 500
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// We verify the property logic is wired correctly
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Assert.Equal(vm.MaxLatency > 500, vm.IsLatencyWarning);
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}
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// ─── Trend data management ────────────────────────────────────────────────
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/// <summary>
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/// 计时器触发后，TrendData 应增加一个数据点
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/// TrendData should gain one data point on each timer tick
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/// Validates: Requirement 9.2
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/// </summary>
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[Fact]
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public async Task TimerTick_AddsTrendDataPoint()
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{
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var vm = CreateViewModel();
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vm.Initialize();
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var initialCount = vm.TrendData.Count;
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// Wait for at least one timer tick (1 second + buffer)
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await Task.Delay(1500);
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DoEvents();
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Assert.True(vm.TrendData.Count > initialCount,
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"TrendData should have grown after a timer tick");
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}
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/// <summary>
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/// TrendData 应限制为最多 60 个数据点（60 秒）
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/// TrendData should be capped at 60 data points (60 seconds)
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/// Validates: Requirement 9.2
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/// </summary>
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[Fact]
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public void TrendData_IsLimitedTo60DataPoints()
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{
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var vm = CreateViewModel();
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vm.Initialize();
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// Directly invoke the private UpdateTrendData method 70 times via reflection
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var method = typeof(PerformanceMonitorViewModel)
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.GetMethod("UpdateTrendData", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
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for (int i = 0; i < 70; i++)
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{
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method?.Invoke(vm, null);
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}
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DoEvents();
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Assert.True(vm.TrendData.Count <= 60,
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$"TrendData should not exceed 60 points, but has {vm.TrendData.Count}");
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}
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/// <summary>
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/// TrendData 数据点应包含时间戳和总事件频率
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/// TrendData points should contain a timestamp and total event frequency value
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/// Validates: Requirement 9.2
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/// </summary>
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[Fact]
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public void TrendData_DataPoints_HaveTimestampAndValue()
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{
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var vm = CreateViewModel();
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vm.Initialize();
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var method = typeof(PerformanceMonitorViewModel)
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.GetMethod("UpdateTrendData", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
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method?.Invoke(vm, null);
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DoEvents();
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Assert.NotEmpty(vm.TrendData);
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var point = vm.TrendData.Last();
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Assert.True(point.Timestamp > DateTime.MinValue, "TrendDataPoint.Timestamp should be set");
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Assert.True(point.Value >= 0, "TrendDataPoint.Value should be non-negative");
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}
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/// <summary>
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/// TrendData 数据点的 Value 应等于所有指标 EventsPerSecond 的总和
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/// TrendData Value should equal the sum of all metric EventsPerSecond values
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/// Validates: Requirement 9.2
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/// </summary>
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[Fact]
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public void TrendData_Value_EqualsSumOfAllMetricFrequencies()
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{
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var vm = CreateViewModel();
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vm.Initialize();
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// Set known EventsPerSecond values on metrics
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foreach (var metric in vm.Metrics)
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{
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metric.EventsPerSecond = 2.0;
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}
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var method = typeof(PerformanceMonitorViewModel)
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.GetMethod("UpdateTrendData", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
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method?.Invoke(vm, null);
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DoEvents();
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var expectedTotal = vm.Metrics.Sum(m => m.EventsPerSecond);
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var lastPoint = vm.TrendData.Last();
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Assert.Equal(expectedTotal, lastPoint.Value);
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}
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// ─── Thread safety ────────────────────────────────────────────────────────
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/// <summary>
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/// 从后台线程触发状态变更事件不应抛出异常
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/// Raising state-change events from a background thread should not throw
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/// Validates: Requirement 9.1 (thread safety)
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/// </summary>
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[Fact]
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public async Task StateChangeEvent_FromBackgroundThread_DoesNotThrow()
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{
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var vm = CreateViewModel();
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vm.Initialize();
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Exception? caughtException = null;
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await Task.Run(() =>
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{
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try
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{
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for (int i = 0; i < 10; i++)
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{
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RaiseMotionStateEvent();
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Thread.Sleep(10);
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}
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}
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catch (Exception ex)
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{
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caughtException = ex;
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}
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});
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await Task.Delay(200);
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DoEvents();
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Assert.Null(caughtException);
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}
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// ─── Helpers ─────────────────────────────────────────────────────────────
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private PerformanceMonitorViewModel CreateViewModel() =>
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new PerformanceMonitorViewModel(
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_mockAppStateService.Object,
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_mockLoggerService.Object,
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_dispatcher);
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||||
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private void RaiseMotionStateEvent()
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{
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var oldState = new MotionState(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0);
|
||||
var newState = new MotionState(1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0);
|
||||
_mockAppStateService.Raise(
|
||||
s => s.MotionStateChanged += null,
|
||||
_mockAppStateService.Object,
|
||||
new StateChangedEventArgs<MotionState>(oldState, newState));
|
||||
}
|
||||
|
||||
private void RaiseRaySourceStateEvent()
|
||||
{
|
||||
var oldState = new RaySourceState(false, 100.0, 5.0);
|
||||
var newState = new RaySourceState(true, 160.0, 8.0);
|
||||
_mockAppStateService.Raise(
|
||||
s => s.RaySourceStateChanged += null,
|
||||
_mockAppStateService.Object,
|
||||
new StateChangedEventArgs<RaySourceState>(oldState, newState));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 处理 Dispatcher 队列中的所有待处理消息
|
||||
/// Process all pending messages in the Dispatcher queue
|
||||
/// </summary>
|
||||
private void DoEvents()
|
||||
{
|
||||
var frame = new DispatcherFrame();
|
||||
_dispatcher.BeginInvoke(DispatcherPriority.Background, new DispatcherOperationCallback(
|
||||
delegate (object f)
|
||||
{
|
||||
((DispatcherFrame)f).Continue = false;
|
||||
return null;
|
||||
}), frame);
|
||||
Dispatcher.PushFrame(frame);
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user