package acp

// These tests isolate JSON escaping and older trace records at the display
// boundary, without provider or pipe buffering.
import (
	"encoding/json"
	"strings"
	"testing"

	"albedo/cli/internal/daemon"
)

func TestToolDisplayBoundsEscapedJSON(t *testing.T) {
	after := strings.Repeat("\x00", toolDisplayLimit)
	event := daemon.StreamEvent{ToolResult: after, ToolTrace: &daemon.ToolTrace{Changes: []daemon.FileChange{{Path: "new", Kind: "diff", NewText: &after}}}}
	encoded, err := json.Marshal(toolDisplay(event))
	if err != nil || len(encoded) > toolDisplayLimit || !strings.Contains(string(encoded), toolTruncationMarker) {
		t.Fatalf("unbounded display: %d, %v", len(encoded), err)
	}
}

func TestToolDisplayOldTraceAndMixedEvidence(t *testing.T) {
	event := daemon.StreamEvent{ToolTrace: &daemon.ToolTrace{Activities: []daemon.ToolActivity{{Kind: "read", Target: "file"}}, Changes: []daemon.FileChange{{Path: "file", Kind: "diff", Diff: "@@ -1 +1 @@"}}}}
	display := toolDisplay(event)
	if display["kind"] != "other" {
		t.Fatal(display)
	}
	encoded, _ := json.Marshal(display)
	if strings.Contains(string(encoded), `"type":"diff"`) || !strings.Contains(string(encoded), "snapshots unavailable") {
		t.Fatal(string(encoded))
	}
}