Function TestPackRecoveryDropsPartialParallelGroup

internal/ctx/ctx_test.go:259–278

TestPackRecoveryDropsPartialParallelGroup: the empty-recovery path (newest is a tool result whose owner fell past a tight budget) must not resurrect a partially-answered parallel group as a dangling assistant. owner issued c1,c2 but only c1 came back; newestToolGroup recovers [assistant(c1,c2), tool

(t *testing.T)

}

// TestPackRecoveryDropsPartialParallelGroup: the empty-recovery path (newest is
// a tool result whose owner fell past a tight budget) must not resurrect a
// partially-answered parallel group as a dangling assistant. owner issued c1,c2
// but only c1 came back; newestToolGroup recovers [assistant(c1,c2), tool(c1)],
// which must then be stripped to nothing rather than reaching the wire and 400ing.
func TestPackRecoveryDropsPartialParallelGroup(t *testing.T) {
	bigArgs := strings.Repeat("y", 4*5000) // owner far over the tight budget below
	history := []Message{
		{Role: RoleUser, Content: "do two things"},
		{Role: RoleAssistant, ToolCalls: []ToolCall{
			{ID: "c1", Name: "bash", Arguments: map[string]any{"cmd": bigArgs}},
			{ID: "c2", Name: "bash"},
		}},
		{Role: RoleTool, ToolCallID: "c1", Content: "out1"}, // c2 result never arrived
	}
	r := Pack(history, 300) // forces the budget walk + drops to empty, then recovery
	for _, m := range r.Messages {
		if m.Role == RoleAssistant && len(m.ToolCalls) > 0 {
			t.Fatalf("dangling partial-parallel assistant reached the wire: %+v", r.Messages)
		}
		if m.Role == RoleTool {
			t.Fatalf("orphaned tool survived after its assistant was dropped: %+v", r.Messages)
		}