mirror of
https://github.com/coder/coder.git
synced 2026-06-03 21:18:24 +00:00
Mathias Fredriksson
bdbcd3428b
File-reference parts in user messages were flattened to `TextContent` at write time because fantasy has no file-reference content type. The frontend never saw them as structured parts. This moves all write paths (user, assistant, tool) from fantasy envelope format to `codersdk.ChatMessagePart`. The streaming layer (`chatloop`) is untouched, the conversion happens at the serialization boundary in `persistStep`. Old rows are still readable. `ParseContent` uses a structural heuristic (`isFantasyEnvelopeFormat`) to distinguish legacy envelopes from SDK parts. We chose this over try/fallback because fantasy envelopes partially unmarshal into `ChatMessagePart` (the `type` field matches) while silently losing content. A guard test enforces that no SDK part can produce the envelope shape. This is forward-only: new rows are unreadable by old code. Chat is behind a feature flag so rollback risk is contained. Also adds a typed `ChatMessageRole` to replace raw strings and `fantasy.MessageRole*` casts at the persistence boundary. The type covers `ChatMessage.Role`, `ChatStreamMessagePart.Role`, the `PublishMessagePart` callback chain, and all DB write sites. `fantasy.MessageRole*` remains only where we build `fantasy.Message` structs for LLM dispatch. Separately, `ProviderMetadata` was leaking to SSE clients via `publishMessagePart`. `StripInternal` now runs on both the SSE and REST paths, covering this. Other cleanup: - Old `db2sdk.contentBlockToPart` silently dropped metadata on text/reasoning/tool-call content. New code preserves it. - `providerMetadataToOptions` now logs warnings instead of silently returning nil. - `db2sdk` shrinks from ~250 lines of parallel conversion to ~15 lines delegating to `chatprompt.ParseContent()`, removing the `fantasy` import entirely. Refs #22821
717 lines
21 KiB
Go
717 lines
21 KiB
Go
package chatloop //nolint:testpackage // Uses internal symbols.
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import (
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"context"
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"sync"
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"testing"
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"charm.land/fantasy"
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"github.com/stretchr/testify/require"
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"golang.org/x/xerrors"
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"github.com/coder/coder/v2/codersdk"
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)
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func TestRun_Compaction(t *testing.T) {
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t.Parallel()
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t.Run("PersistsWhenThresholdReached", func(t *testing.T) {
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t.Parallel()
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persistCompactionCalls := 0
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var persistedCompaction CompactionResult
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const summaryText = "summary text for compaction"
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model := &loopTestModel{
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provider: "fake",
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streamFn: func(_ context.Context, _ fantasy.Call) (fantasy.StreamResponse, error) {
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return streamFromParts([]fantasy.StreamPart{
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{Type: fantasy.StreamPartTypeTextStart, ID: "text-1"},
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{Type: fantasy.StreamPartTypeTextDelta, ID: "text-1", Delta: "done"},
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{Type: fantasy.StreamPartTypeTextEnd, ID: "text-1"},
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{
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Type: fantasy.StreamPartTypeFinish,
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FinishReason: fantasy.FinishReasonStop,
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Usage: fantasy.Usage{
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InputTokens: 80,
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TotalTokens: 85,
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},
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},
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}), nil
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},
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generateFn: func(_ context.Context, call fantasy.Call) (*fantasy.Response, error) {
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require.NotEmpty(t, call.Prompt)
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lastPrompt := call.Prompt[len(call.Prompt)-1]
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require.Equal(t, fantasy.MessageRoleUser, lastPrompt.Role)
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require.Len(t, lastPrompt.Content, 1)
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instruction, ok := fantasy.AsMessagePart[fantasy.TextPart](lastPrompt.Content[0])
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require.True(t, ok)
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require.Equal(t, "summarize now", instruction.Text)
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return &fantasy.Response{
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Content: []fantasy.Content{
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fantasy.TextContent{Text: summaryText},
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},
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}, nil
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},
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}
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err := Run(context.Background(), RunOptions{
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Model: model,
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Messages: []fantasy.Message{
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textMessage(fantasy.MessageRoleUser, "hello"),
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},
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MaxSteps: 1,
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PersistStep: func(_ context.Context, _ PersistedStep) error {
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return nil
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},
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ContextLimitFallback: 100,
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Compaction: &CompactionOptions{
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ThresholdPercent: 70,
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SummaryPrompt: "summarize now",
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Persist: func(_ context.Context, result CompactionResult) error {
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persistCompactionCalls++
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persistedCompaction = result
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return nil
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},
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},
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ReloadMessages: func(_ context.Context) ([]fantasy.Message, error) {
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return []fantasy.Message{
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textMessage(fantasy.MessageRoleUser, "hello"),
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}, nil
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},
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})
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require.NoError(t, err)
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// Compaction fires twice: once inline when the threshold is
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// reached on step 0 (the only step, since MaxSteps=1), and
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// once from the post-run safety net during the re-entry
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// iteration (where totalSteps already equals MaxSteps so the
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// inner loop doesn't execute, but lastUsage still exceeds
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// the threshold).
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require.Equal(t, 2, persistCompactionCalls)
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require.Contains(t, persistedCompaction.SystemSummary, summaryText)
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require.Equal(t, summaryText, persistedCompaction.SummaryReport)
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require.Equal(t, int64(80), persistedCompaction.ContextTokens)
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require.Equal(t, int64(100), persistedCompaction.ContextLimit)
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require.InDelta(t, 80.0, persistedCompaction.UsagePercent, 0.0001)
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})
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t.Run("PublishesPartsBeforeAndAfterPersist", func(t *testing.T) {
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t.Parallel()
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const summaryText = "compaction summary for ordering test"
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// Track the order of callbacks to verify the tool-call
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// part publishes before Generate (summary generation)
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// and the tool-result part publishes after Persist.
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var callOrder []string
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model := &loopTestModel{
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provider: "fake",
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streamFn: func(_ context.Context, _ fantasy.Call) (fantasy.StreamResponse, error) {
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return streamFromParts([]fantasy.StreamPart{
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{Type: fantasy.StreamPartTypeTextStart, ID: "text-1"},
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{Type: fantasy.StreamPartTypeTextDelta, ID: "text-1", Delta: "done"},
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{Type: fantasy.StreamPartTypeTextEnd, ID: "text-1"},
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{
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Type: fantasy.StreamPartTypeFinish,
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FinishReason: fantasy.FinishReasonStop,
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Usage: fantasy.Usage{
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InputTokens: 80,
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TotalTokens: 85,
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},
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},
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}), nil
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},
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generateFn: func(_ context.Context, _ fantasy.Call) (*fantasy.Response, error) {
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callOrder = append(callOrder, "generate")
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return &fantasy.Response{
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Content: []fantasy.Content{
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fantasy.TextContent{Text: summaryText},
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},
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}, nil
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},
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}
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err := Run(context.Background(), RunOptions{
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Model: model,
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Messages: []fantasy.Message{
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textMessage(fantasy.MessageRoleUser, "hello"),
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},
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MaxSteps: 1,
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PersistStep: func(_ context.Context, _ PersistedStep) error {
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return nil
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},
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ContextLimitFallback: 100,
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Compaction: &CompactionOptions{
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ThresholdPercent: 70,
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SummaryPrompt: "summarize now",
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ToolCallID: "test-tool-call-id",
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ToolName: "chat_summarized",
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PublishMessagePart: func(role codersdk.ChatMessageRole, part codersdk.ChatMessagePart) {
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switch part.Type {
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case codersdk.ChatMessagePartTypeToolCall:
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callOrder = append(callOrder, "publish_tool_call")
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case codersdk.ChatMessagePartTypeToolResult:
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callOrder = append(callOrder, "publish_tool_result")
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}
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},
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Persist: func(_ context.Context, _ CompactionResult) error {
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callOrder = append(callOrder, "persist")
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return nil
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},
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},
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ReloadMessages: func(_ context.Context) ([]fantasy.Message, error) {
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return []fantasy.Message{
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textMessage(fantasy.MessageRoleUser, "hello"),
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}, nil
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},
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})
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require.NoError(t, err)
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// Compaction fires twice (see PersistsWhenThresholdReached
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// for the full explanation). Each cycle follows the order:
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// publish_tool_call → generate → persist → publish_tool_result.
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require.Equal(t, []string{
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"publish_tool_call",
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"generate",
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"persist",
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"publish_tool_result",
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"publish_tool_call",
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"generate",
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"persist",
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"publish_tool_result",
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}, callOrder)
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})
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t.Run("PublishNotCalledBelowThreshold", func(t *testing.T) {
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t.Parallel()
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publishCalled := false
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model := &loopTestModel{
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provider: "fake",
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streamFn: func(_ context.Context, _ fantasy.Call) (fantasy.StreamResponse, error) {
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return streamFromParts([]fantasy.StreamPart{
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{
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Type: fantasy.StreamPartTypeFinish,
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FinishReason: fantasy.FinishReasonStop,
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Usage: fantasy.Usage{
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InputTokens: 10,
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},
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},
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}), nil
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},
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}
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err := Run(context.Background(), RunOptions{
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Model: model,
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Messages: []fantasy.Message{
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textMessage(fantasy.MessageRoleUser, "hello"),
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},
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MaxSteps: 1,
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PersistStep: func(_ context.Context, _ PersistedStep) error {
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return nil
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},
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ContextLimitFallback: 100,
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Compaction: &CompactionOptions{
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ThresholdPercent: 70,
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ToolCallID: "test-tool-call-id",
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ToolName: "chat_summarized",
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PublishMessagePart: func(_ codersdk.ChatMessageRole, _ codersdk.ChatMessagePart) {
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publishCalled = true
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},
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Persist: func(_ context.Context, _ CompactionResult) error {
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return nil
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},
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},
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})
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require.NoError(t, err)
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require.False(t, publishCalled, "PublishMessagePart should not fire when usage is below threshold")
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})
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t.Run("MidLoopCompactionReloadsMessages", func(t *testing.T) {
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t.Parallel()
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var mu sync.Mutex
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var streamCallCount int
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persistCompactionCalls := 0
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reloadCalls := 0
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const summaryText = "compacted summary"
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model := &loopTestModel{
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provider: "fake",
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streamFn: func(_ context.Context, _ fantasy.Call) (fantasy.StreamResponse, error) {
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mu.Lock()
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step := streamCallCount
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streamCallCount++
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mu.Unlock()
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switch step {
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case 0:
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// Step 0: tool call with high usage (80/100 = 80% > 70%).
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return streamFromParts([]fantasy.StreamPart{
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{Type: fantasy.StreamPartTypeToolInputStart, ID: "tc-1", ToolCallName: "read_file"},
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{Type: fantasy.StreamPartTypeToolInputDelta, ID: "tc-1", Delta: `{}`},
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{Type: fantasy.StreamPartTypeToolInputEnd, ID: "tc-1"},
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{
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Type: fantasy.StreamPartTypeToolCall,
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ID: "tc-1",
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ToolCallName: "read_file",
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ToolCallInput: `{}`,
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},
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{
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Type: fantasy.StreamPartTypeFinish,
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FinishReason: fantasy.FinishReasonToolCalls,
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Usage: fantasy.Usage{
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InputTokens: 80,
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TotalTokens: 85,
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},
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},
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}), nil
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default:
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// Step 1: text with low usage (30/100 = 30% < 70%).
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return streamFromParts([]fantasy.StreamPart{
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{Type: fantasy.StreamPartTypeTextStart, ID: "text-1"},
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{Type: fantasy.StreamPartTypeTextDelta, ID: "text-1", Delta: "done"},
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{Type: fantasy.StreamPartTypeTextEnd, ID: "text-1"},
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{
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Type: fantasy.StreamPartTypeFinish,
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FinishReason: fantasy.FinishReasonStop,
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Usage: fantasy.Usage{
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InputTokens: 30,
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TotalTokens: 35,
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},
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},
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}), nil
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}
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},
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generateFn: func(_ context.Context, _ fantasy.Call) (*fantasy.Response, error) {
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return &fantasy.Response{
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Content: []fantasy.Content{
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fantasy.TextContent{Text: summaryText},
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},
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}, nil
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},
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}
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compactedMessages := []fantasy.Message{
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textMessage(fantasy.MessageRoleSystem, "compacted system"),
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textMessage(fantasy.MessageRoleUser, "compacted user"),
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}
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err := Run(context.Background(), RunOptions{
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Model: model,
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Messages: []fantasy.Message{
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textMessage(fantasy.MessageRoleUser, "hello"),
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},
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Tools: []fantasy.AgentTool{
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newNoopTool("read_file"),
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},
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MaxSteps: 5,
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PersistStep: func(_ context.Context, _ PersistedStep) error {
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return nil
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},
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ContextLimitFallback: 100,
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Compaction: &CompactionOptions{
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ThresholdPercent: 70,
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SummaryPrompt: "summarize now",
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Persist: func(_ context.Context, _ CompactionResult) error {
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persistCompactionCalls++
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return nil
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},
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},
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ReloadMessages: func(_ context.Context) ([]fantasy.Message, error) {
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reloadCalls++
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return compactedMessages, nil
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},
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})
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require.NoError(t, err)
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// Compaction fired after step 0 (above threshold).
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require.GreaterOrEqual(t, persistCompactionCalls, 1)
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// ReloadMessages was called after mid-loop compaction.
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require.GreaterOrEqual(t, reloadCalls, 1)
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// Both steps ran (tool-call step + follow-up text step).
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require.Equal(t, 2, streamCallCount)
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})
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t.Run("PostRunCompactionSkippedAfterMidLoop", func(t *testing.T) {
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t.Parallel()
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var mu sync.Mutex
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var streamCallCount int
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persistCompactionCalls := 0
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const summaryText = "compacted summary for skip test"
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model := &loopTestModel{
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provider: "fake",
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streamFn: func(_ context.Context, _ fantasy.Call) (fantasy.StreamResponse, error) {
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mu.Lock()
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step := streamCallCount
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streamCallCount++
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mu.Unlock()
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switch step {
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case 0:
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// Step 0: tool call with high usage (80/100 = 80% > 70%).
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return streamFromParts([]fantasy.StreamPart{
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{Type: fantasy.StreamPartTypeToolInputStart, ID: "tc-1", ToolCallName: "read_file"},
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{Type: fantasy.StreamPartTypeToolInputDelta, ID: "tc-1", Delta: `{}`},
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{Type: fantasy.StreamPartTypeToolInputEnd, ID: "tc-1"},
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{
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Type: fantasy.StreamPartTypeToolCall,
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ID: "tc-1",
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ToolCallName: "read_file",
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ToolCallInput: `{}`,
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},
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{
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Type: fantasy.StreamPartTypeFinish,
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FinishReason: fantasy.FinishReasonToolCalls,
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Usage: fantasy.Usage{
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InputTokens: 80,
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TotalTokens: 85,
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},
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},
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}), nil
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default:
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// Step 1: text with low usage (20/100 = 20% < 70%).
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return streamFromParts([]fantasy.StreamPart{
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{Type: fantasy.StreamPartTypeTextStart, ID: "text-1"},
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{Type: fantasy.StreamPartTypeTextDelta, ID: "text-1", Delta: "done"},
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{Type: fantasy.StreamPartTypeTextEnd, ID: "text-1"},
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{
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Type: fantasy.StreamPartTypeFinish,
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FinishReason: fantasy.FinishReasonStop,
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Usage: fantasy.Usage{
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InputTokens: 20,
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TotalTokens: 25,
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},
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},
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}), nil
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}
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},
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generateFn: func(_ context.Context, _ fantasy.Call) (*fantasy.Response, error) {
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return &fantasy.Response{
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Content: []fantasy.Content{
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fantasy.TextContent{Text: summaryText},
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},
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}, nil
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},
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}
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compactedMessages := []fantasy.Message{
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textMessage(fantasy.MessageRoleSystem, "compacted system"),
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textMessage(fantasy.MessageRoleUser, "compacted user"),
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}
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err := Run(context.Background(), RunOptions{
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Model: model,
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Messages: []fantasy.Message{
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textMessage(fantasy.MessageRoleUser, "hello"),
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},
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Tools: []fantasy.AgentTool{
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newNoopTool("read_file"),
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},
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MaxSteps: 5,
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PersistStep: func(_ context.Context, _ PersistedStep) error {
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return nil
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},
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ContextLimitFallback: 100,
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Compaction: &CompactionOptions{
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ThresholdPercent: 70,
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SummaryPrompt: "summarize now",
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Persist: func(_ context.Context, _ CompactionResult) error {
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persistCompactionCalls++
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return nil
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},
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},
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ReloadMessages: func(_ context.Context) ([]fantasy.Message, error) {
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return compactedMessages, nil
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},
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})
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require.NoError(t, err)
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// Only mid-loop compaction fires after step 0. The post-run
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// safety net is skipped because alreadyCompacted is true.
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require.Equal(t, 1, persistCompactionCalls)
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})
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t.Run("ErrorsAreReported", func(t *testing.T) {
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t.Parallel()
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model := &loopTestModel{
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provider: "fake",
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streamFn: func(_ context.Context, _ fantasy.Call) (fantasy.StreamResponse, error) {
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return streamFromParts([]fantasy.StreamPart{
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{
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Type: fantasy.StreamPartTypeFinish,
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FinishReason: fantasy.FinishReasonStop,
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Usage: fantasy.Usage{
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InputTokens: 80,
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},
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},
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}), nil
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},
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generateFn: func(_ context.Context, _ fantasy.Call) (*fantasy.Response, error) {
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return nil, xerrors.New("generate failed")
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},
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}
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compactionErr := xerrors.New("unset")
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err := Run(context.Background(), RunOptions{
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Model: model,
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Messages: []fantasy.Message{
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textMessage(fantasy.MessageRoleUser, "hello"),
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},
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MaxSteps: 1,
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PersistStep: func(_ context.Context, _ PersistedStep) error {
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return nil
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},
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ContextLimitFallback: 100,
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Compaction: &CompactionOptions{
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ThresholdPercent: 70,
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Persist: func(_ context.Context, _ CompactionResult) error {
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return nil
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},
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OnError: func(err error) {
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compactionErr = err
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},
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},
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ReloadMessages: func(_ context.Context) ([]fantasy.Message, error) {
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return []fantasy.Message{
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textMessage(fantasy.MessageRoleUser, "hello"),
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}, nil
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},
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})
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require.NoError(t, err)
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require.Error(t, compactionErr)
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require.ErrorContains(t, compactionErr, "generate summary text")
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})
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t.Run("PostRunCompactionReEntersStepLoop", func(t *testing.T) {
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t.Parallel()
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// When post-run compaction fires (no mid-loop compaction)
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// and ReloadMessages is provided, Run should re-enter the
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// step loop with the reloaded messages so the agent
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// continues working.
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|
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var mu sync.Mutex
|
|
var streamCallCount int
|
|
persistCompactionCalls := 0
|
|
reloadCalls := 0
|
|
|
|
const summaryText = "post-run compacted summary"
|
|
|
|
compactedMessages := []fantasy.Message{
|
|
textMessage(fantasy.MessageRoleSystem, "compacted system"),
|
|
textMessage(fantasy.MessageRoleUser, "compacted user"),
|
|
}
|
|
|
|
model := &loopTestModel{
|
|
provider: "fake",
|
|
streamFn: func(_ context.Context, _ fantasy.Call) (fantasy.StreamResponse, error) {
|
|
mu.Lock()
|
|
step := streamCallCount
|
|
streamCallCount++
|
|
mu.Unlock()
|
|
|
|
switch step {
|
|
case 0:
|
|
// First turn: text-only response with high usage.
|
|
// No tool calls, so shouldContinue = false and
|
|
// the inner step loop breaks. Compaction should
|
|
// fire, then the outer loop re-enters.
|
|
return streamFromParts([]fantasy.StreamPart{
|
|
{Type: fantasy.StreamPartTypeTextStart, ID: "text-1"},
|
|
{Type: fantasy.StreamPartTypeTextDelta, ID: "text-1", Delta: "initial response"},
|
|
{Type: fantasy.StreamPartTypeTextEnd, ID: "text-1"},
|
|
{
|
|
Type: fantasy.StreamPartTypeFinish,
|
|
FinishReason: fantasy.FinishReasonStop,
|
|
Usage: fantasy.Usage{
|
|
InputTokens: 80,
|
|
TotalTokens: 85,
|
|
},
|
|
},
|
|
}), nil
|
|
default:
|
|
// Second turn (after compaction re-entry):
|
|
// text-only with low usage — should finish.
|
|
return streamFromParts([]fantasy.StreamPart{
|
|
{Type: fantasy.StreamPartTypeTextStart, ID: "text-2"},
|
|
{Type: fantasy.StreamPartTypeTextDelta, ID: "text-2", Delta: "continued after compaction"},
|
|
{Type: fantasy.StreamPartTypeTextEnd, ID: "text-2"},
|
|
{
|
|
Type: fantasy.StreamPartTypeFinish,
|
|
FinishReason: fantasy.FinishReasonStop,
|
|
Usage: fantasy.Usage{
|
|
InputTokens: 20,
|
|
TotalTokens: 25,
|
|
},
|
|
},
|
|
}), nil
|
|
}
|
|
},
|
|
generateFn: func(_ context.Context, _ fantasy.Call) (*fantasy.Response, error) {
|
|
return &fantasy.Response{
|
|
Content: []fantasy.Content{
|
|
fantasy.TextContent{Text: summaryText},
|
|
},
|
|
}, nil
|
|
},
|
|
}
|
|
|
|
err := Run(context.Background(), RunOptions{
|
|
Model: model,
|
|
Messages: []fantasy.Message{
|
|
textMessage(fantasy.MessageRoleUser, "hello"),
|
|
},
|
|
MaxSteps: 5,
|
|
PersistStep: func(_ context.Context, _ PersistedStep) error {
|
|
return nil
|
|
},
|
|
ContextLimitFallback: 100,
|
|
Compaction: &CompactionOptions{
|
|
ThresholdPercent: 70,
|
|
SummaryPrompt: "summarize now",
|
|
Persist: func(_ context.Context, _ CompactionResult) error {
|
|
persistCompactionCalls++
|
|
return nil
|
|
},
|
|
},
|
|
ReloadMessages: func(_ context.Context) ([]fantasy.Message, error) {
|
|
reloadCalls++
|
|
return compactedMessages, nil
|
|
},
|
|
})
|
|
require.NoError(t, err)
|
|
|
|
// Compaction fired on the final step of the first pass.
|
|
// The inline path fires (ReloadMessages is set) and then
|
|
// the outer loop re-enters. On the second pass the usage
|
|
// is below threshold so no further compaction occurs.
|
|
require.GreaterOrEqual(t, persistCompactionCalls, 1)
|
|
// ReloadMessages was called (inline + re-entry).
|
|
require.GreaterOrEqual(t, reloadCalls, 1)
|
|
// Two stream calls: one before compaction, one after re-entry.
|
|
require.Equal(t, 2, streamCallCount)
|
|
})
|
|
|
|
t.Run("PostRunCompactionReEntryIncludesUserSummary", func(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
// After compaction the summary is stored as a user-role
|
|
// message. When the loop re-enters, the reloaded prompt
|
|
// must contain this user message so the LLM provider
|
|
// receives a valid prompt (providers like Anthropic
|
|
// require at least one non-system message).
|
|
|
|
var mu sync.Mutex
|
|
var streamCallCount int
|
|
var reEntryPrompt []fantasy.Message
|
|
persistCompactionCalls := 0
|
|
|
|
const summaryText = "post-run compacted summary"
|
|
|
|
model := &loopTestModel{
|
|
provider: "fake",
|
|
streamFn: func(_ context.Context, call fantasy.Call) (fantasy.StreamResponse, error) {
|
|
mu.Lock()
|
|
step := streamCallCount
|
|
streamCallCount++
|
|
mu.Unlock()
|
|
|
|
switch step {
|
|
case 0:
|
|
return streamFromParts([]fantasy.StreamPart{
|
|
{Type: fantasy.StreamPartTypeTextStart, ID: "text-1"},
|
|
{Type: fantasy.StreamPartTypeTextDelta, ID: "text-1", Delta: "initial response"},
|
|
{Type: fantasy.StreamPartTypeTextEnd, ID: "text-1"},
|
|
{
|
|
Type: fantasy.StreamPartTypeFinish,
|
|
FinishReason: fantasy.FinishReasonStop,
|
|
Usage: fantasy.Usage{
|
|
InputTokens: 80,
|
|
TotalTokens: 85,
|
|
},
|
|
},
|
|
}), nil
|
|
default:
|
|
mu.Lock()
|
|
reEntryPrompt = append([]fantasy.Message(nil), call.Prompt...)
|
|
mu.Unlock()
|
|
return streamFromParts([]fantasy.StreamPart{
|
|
{Type: fantasy.StreamPartTypeTextStart, ID: "text-2"},
|
|
{Type: fantasy.StreamPartTypeTextDelta, ID: "text-2", Delta: "continued"},
|
|
{Type: fantasy.StreamPartTypeTextEnd, ID: "text-2"},
|
|
{
|
|
Type: fantasy.StreamPartTypeFinish,
|
|
FinishReason: fantasy.FinishReasonStop,
|
|
Usage: fantasy.Usage{
|
|
InputTokens: 20,
|
|
TotalTokens: 25,
|
|
},
|
|
},
|
|
}), nil
|
|
}
|
|
},
|
|
generateFn: func(_ context.Context, _ fantasy.Call) (*fantasy.Response, error) {
|
|
return &fantasy.Response{
|
|
Content: []fantasy.Content{
|
|
fantasy.TextContent{Text: summaryText},
|
|
},
|
|
}, nil
|
|
},
|
|
}
|
|
|
|
// Simulate real post-compaction DB state: the summary is
|
|
// a user-role message (the only non-system content).
|
|
compactedMessages := []fantasy.Message{
|
|
textMessage(fantasy.MessageRoleSystem, "system prompt"),
|
|
textMessage(fantasy.MessageRoleUser, "Summary of earlier chat context:\n\ncompacted summary"),
|
|
}
|
|
|
|
err := Run(context.Background(), RunOptions{
|
|
Model: model,
|
|
Messages: []fantasy.Message{
|
|
textMessage(fantasy.MessageRoleUser, "hello"),
|
|
},
|
|
MaxSteps: 5,
|
|
PersistStep: func(_ context.Context, _ PersistedStep) error {
|
|
return nil
|
|
},
|
|
ContextLimitFallback: 100,
|
|
Compaction: &CompactionOptions{
|
|
ThresholdPercent: 70,
|
|
SummaryPrompt: "summarize now",
|
|
Persist: func(_ context.Context, _ CompactionResult) error {
|
|
persistCompactionCalls++
|
|
return nil
|
|
},
|
|
},
|
|
ReloadMessages: func(_ context.Context) ([]fantasy.Message, error) {
|
|
return compactedMessages, nil
|
|
},
|
|
})
|
|
require.NoError(t, err)
|
|
|
|
require.GreaterOrEqual(t, persistCompactionCalls, 1)
|
|
// Re-entry happened: stream was called at least twice.
|
|
require.Equal(t, 2, streamCallCount)
|
|
// The re-entry prompt must contain the user summary.
|
|
require.NotEmpty(t, reEntryPrompt)
|
|
hasUser := false
|
|
for _, msg := range reEntryPrompt {
|
|
if msg.Role == fantasy.MessageRoleUser {
|
|
hasUser = true
|
|
break
|
|
}
|
|
}
|
|
require.True(t, hasUser, "re-entry prompt must contain a user message (the compaction summary)")
|
|
})
|
|
}
|