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internal/workflow/tool_output_budget_test.go

@@ -0,0 +1,23 @@
+package workflow
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestTruncateWorkflowToolOutputBoundsBytesAndKeepsExecutionReference(t *testing.T) {
+	out := truncateWorkflowToolOutput(strings.Repeat("响应正文", 1000), 256, "exec-123")
+	if len(out) > 256 {
+		t.Fatalf("workflow output bytes=%d, want <=256", len(out))
+	}
+	if !strings.Contains(out, "exec-123") || !strings.Contains(out, "truncated") {
+		t.Fatalf("missing truncation reference: %q", out)
+	}
+}
+
+func TestTruncateWorkflowToolOutputLeavesBoundedContentUntouched(t *testing.T) {
+	const want = "small-result"
+	if got := truncateWorkflowToolOutput(want, 256, "exec-123"); got != want {
+		t.Fatalf("got %q want %q", got, want)
+	}
+}