| 1 | using CascadeIDE.Features.Agent.Harness; |
| 2 | using CascadeIDE.Models; |
| 3 | using CascadeIDE.Services; |
| 4 | using Xunit; |
| 5 | |
| 6 | namespace CascadeIDE.Tests; |
| 7 | |
| 8 | public sealed class ChatHarnessCoordinatorTests |
| 9 | { |
| 10 | [Fact] |
| 11 | public void OnUserMessageCommitted_EmitsCheckpointAtThreshold() |
| 12 | { |
| 13 | var settings = new CascadeIdeSettings |
| 14 | { |
| 15 | Agent = new AgentSettings |
| 16 | { |
| 17 | Harness = new AgentHarnessSettings |
| 18 | { |
| 19 | CheckpointEnabled = true, |
| 20 | CheckpointThresholdUserTurns = 3, |
| 21 | CheckpointRepeatEveryUserTurns = 3, |
| 22 | }, |
| 23 | }, |
| 24 | }; |
| 25 | |
| 26 | var coord = new ChatHarnessCoordinator(() => settings, executeIdeCommand: null); |
| 27 | coord.BindSession(Guid.NewGuid()); |
| 28 | |
| 29 | Assert.Equal(HarnessUserTurnResult.None, coord.OnUserMessageCommitted()); |
| 30 | Assert.Equal(HarnessUserTurnResult.None, coord.OnUserMessageCommitted()); |
| 31 | var third = coord.OnUserMessageCommitted(); |
| 32 | Assert.True(third.InjectCheckpoint); |
| 33 | Assert.Contains("harness checkpoint", third.CheckpointUserMessage, StringComparison.OrdinalIgnoreCase); |
| 34 | } |
| 35 | |
| 36 | [Fact] |
| 37 | public async Task RefreshHotContext_ParsesJsonContent() |
| 38 | { |
| 39 | var settings = new CascadeIdeSettings(); |
| 40 | var coord = new ChatHarnessCoordinator( |
| 41 | () => settings, |
| 42 | (_, _, _) => Task.FromResult("""{"content":"L0 stub"}""")); |
| 43 | |
| 44 | await coord.OnSessionInitializedAsync(); |
| 45 | |
| 46 | Assert.Contains("L0 stub", coord.HotContextBlock, StringComparison.Ordinal); |
| 47 | } |
| 48 | |
| 49 | [Fact] |
| 50 | public void OnThreadMessageCommitted_EmitsPreCompactAtThreshold() |
| 51 | { |
| 52 | var settings = new CascadeIdeSettings |
| 53 | { |
| 54 | Agent = new AgentSettings |
| 55 | { |
| 56 | Harness = new AgentHarnessSettings |
| 57 | { |
| 58 | CheckpointOnContextPressure = true, |
| 59 | ContextPressureThreadMessageThreshold = 5, |
| 60 | ContextPressureRepeatEveryMessages = 5, |
| 61 | }, |
| 62 | }, |
| 63 | }; |
| 64 | |
| 65 | var coord = new ChatHarnessCoordinator(() => settings, executeIdeCommand: null); |
| 66 | coord.BindSession(Guid.NewGuid()); |
| 67 | |
| 68 | for (var i = 1; i < 4; i++) |
| 69 | Assert.False(coord.OnThreadMessageCommitted(i).InjectPreCompact); |
| 70 | |
| 71 | var fifth = coord.OnThreadMessageCommitted(5); |
| 72 | Assert.True(fifth.InjectPreCompact); |
| 73 | Assert.Contains("ADCM", fifth.PreCompactUserMessage, StringComparison.OrdinalIgnoreCase); |
| 74 | } |
| 75 | |
| 76 | [Fact] |
| 77 | public void OnContextUsagePct_EmitsAtWarnThreshold() |
| 78 | { |
| 79 | var settings = new CascadeIdeSettings |
| 80 | { |
| 81 | Agent = new AgentSettings |
| 82 | { |
| 83 | Harness = new AgentHarnessSettings |
| 84 | { |
| 85 | CheckpointOnContextPressure = true, |
| 86 | ContextWarnPct = 75, |
| 87 | }, |
| 88 | }, |
| 89 | }; |
| 90 | |
| 91 | var coord = new ChatHarnessCoordinator(() => settings, executeIdeCommand: null); |
| 92 | coord.BindSession(Guid.NewGuid()); |
| 93 | |
| 94 | Assert.False(coord.OnContextUsagePct(7000, 10000).InjectPreCompact); |
| 95 | var atWarn = coord.OnContextUsagePct(7500, 10000); |
| 96 | Assert.True(atWarn.InjectPreCompact); |
| 97 | Assert.Contains("ADCM", atWarn.PreCompactUserMessage, StringComparison.OrdinalIgnoreCase); |
| 98 | Assert.False(coord.OnContextUsagePct(8000, 10000).InjectPreCompact); |
| 99 | Assert.True(coord.OnContextUsagePct(8500, 10000).InjectPreCompact); |
| 100 | } |
| 101 | |
| 102 | [Fact] |
| 103 | public void BuildTelemetryContextBlock_IncludesStaleFlag() |
| 104 | { |
| 105 | var settings = new CascadeIdeSettings(); |
| 106 | var coord = new ChatHarnessCoordinator(() => settings, executeIdeCommand: null); |
| 107 | var block = coord.BuildTelemetryContextBlock(coord.GetTelemetry(), verifyEpochUiStale: true); |
| 108 | Assert.Contains("verify_epoch_ui_stale: true", block, StringComparison.Ordinal); |
| 109 | } |
| 110 | } |
| 111 | |