| 1 | package control |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "fmt" |
| 6 | "sync/atomic" |
| 7 | "testing" |
| 8 | |
| 9 | "reasonix/internal/agent" |
| 10 | "reasonix/internal/event" |
| 11 | "reasonix/internal/provider" |
| 12 | "reasonix/internal/tool" |
| 13 | ) |
| 14 | |
| 15 | // wanderingChatProvider never repeats itself: every round reads one more path, |
| 16 | // so the adaptive guards stay silent. It is the reported runaway's shape, |
| 17 | // driven through the controller rather than the agent. With max > 0 it stops |
| 18 | // on its own after that many rounds. |
| 19 | type wanderingChatProvider struct { |
| 20 | calls atomic.Int32 |
| 21 | max int32 |
| 22 | } |
| 23 | |
| 24 | func (p *wanderingChatProvider) Name() string { return "wandering" } |
| 25 | |
| 26 | func (p *wanderingChatProvider) Stream(context.Context, provider.Request) (<-chan provider.Chunk, error) { |
| 27 | round := p.calls.Add(1) |
| 28 | ch := make(chan provider.Chunk, 4) |
| 29 | if p.max > 0 && round > p.max { |
| 30 | ch <- provider.Chunk{Type: provider.ChunkText, Text: "Done."} |
| 31 | ch <- provider.Chunk{Type: provider.ChunkDone} |
| 32 | close(ch) |
| 33 | return ch, nil |
| 34 | } |
| 35 | ch <- provider.Chunk{Type: provider.ChunkText, Text: "收到。先收集当前真实状态。"} |
| 36 | ch <- provider.Chunk{Type: provider.ChunkToolCall, ToolCall: &provider.ToolCall{ |
| 37 | ID: fmt.Sprintf("call-%d", round), |
| 38 | Name: "read_file", |
| 39 | Arguments: fmt.Sprintf(`{"path":"internal/pkg%d/file.go"}`, round), |
| 40 | }} |
| 41 | ch <- provider.Chunk{Type: provider.ChunkDone} |
| 42 | close(ch) |
| 43 | return ch, nil |
| 44 | } |
| 45 | |
| 46 | func newChatBudgetController(t *testing.T, exec *agent.Agent) (*Controller, chan event.Event) { |
| 47 | t.Helper() |
| 48 | // Round admission does not depend on session durability. Keep this fixture |
| 49 | // in memory; persistence and writer authority have their own integration tests. |
| 50 | sink, done, _ := collectSink() |
| 51 | c := newOwnedTestController(t, Options{ |
| 52 | Runner: exec, |
| 53 | Executor: exec, |
| 54 | Sink: sink, |
| 55 | }) |
| 56 | t.Cleanup(c.autosaveWG.Wait) |
| 57 | return c, done |
| 58 | } |
| 59 | |
| 60 | // An ordinary chat turn has no round ceiling. Reaching a high round count |
| 61 | // without crossing the cost or wall-clock budget means the rounds are |
| 62 | // individually cheap and fast, which is the case least worth stopping — 120 |
| 63 | // rounds would have been truncated by the ceiling this replaced. |
| 64 | func TestOrdinaryChatTurnRunsPastTheOldRoundCeiling(t *testing.T) { |
| 65 | prov := &wanderingChatProvider{max: 120} |
| 66 | reg := tool.NewRegistry() |
| 67 | reg.Add(fakeControlTool{name: "read_file"}) |
| 68 | exec := agent.New(prov, reg, agent.NewSession("sys"), agent.Options{}, event.Discard) |
| 69 | c, done := newChatBudgetController(t, exec) |
| 70 | |
| 71 | c.Submit("collect the real state, then rewrite HANDOVER.md") |
| 72 | <-done |
| 73 | |
| 74 | if got, want := prov.calls.Load(), int32(121); got != want { |
| 75 | t.Fatalf("provider rounds = %d, want %d (the model's own 120 plus its final answer)", got, want) |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | // The gate must not touch a turn the user bounded explicitly. |
| 80 | func TestExplicitMaxStepsOwnsTheOrdinaryTurn(t *testing.T) { |
| 81 | prov := &wanderingChatProvider{} |
| 82 | reg := tool.NewRegistry() |
| 83 | reg.Add(fakeControlTool{name: "read_file"}) |
| 84 | exec := agent.New(prov, reg, agent.NewSession("sys"), agent.Options{MaxSteps: 3}, event.Discard) |
| 85 | c, done := newChatBudgetController(t, exec) |
| 86 | |
| 87 | c.Submit("collect the real state") |
| 88 | <-done |
| 89 | |
| 90 | if got := prov.calls.Load(); got != 4 { |
| 91 | t.Fatalf("provider rounds = %d, want the explicit 3 plus one summary", got) |
| 92 | } |
| 93 | } |
| 94 |