Newest papers

Step-Aligned Script Generation with Verification and Recovery for Web Automation Testing

Hridya Dhulipala, Xiaokai Rong, Aashish Yadavally, Tien N. Nguyen · 2026 · arXiv (Cornell University)

DOI: 10.48550/arxiv.2610.25601 · cited by 0 works (OpenAlex) · open-access PDF

Japanese

最近のLLMベースのウェブエージェントは、ライブブラウザのセッションで自然言語のタスクを完了することができます:開発者は、安定したセレクターを識別し、複数のステップワークフローをエンコードし、主張を付加し、インターフェイスが進化するようにスクリプトを維持する必要があります。最近のLLMベースのウェブエージェントは、実行可能なセレクターを作成するとは違います - 実行可能なコード、ゴールステータス主張、およびステップレベルから再生可能なコードを生成し、開発者によってインタラクティブに評価され、オラクルに結び付けられます。我々は、TESSARAを紹介します。TESSARAは、自然言語のテストの意図

Machine translation (Meta M2M100); the English original follows.

Abstract

Automated generation of end-to-end web tests remains costly: developers must identify stable selectors, encode multi-step workflows, attach assertions, and maintain scripts as interfaces evolve. Recent LLM-based web agents can complete natural-language tasks in a live browser session, but task completion is not the same as producing a test-ware artifact - code that is executable, replay-able from a reset state, inspectable by developers, and tied to an oracle. We present TESSARA, an adaptive test-script generation framework that converts natural-language test intent into Playwright scripts consisting of executable interaction code, goal-state assertions, and step-level provenance linking each step to its generated code fragment, selector evidence, execution outcome, and repair history. TESSARA grounds each planned step via Step-Aligned Scripting (SAS), enabling fine-grained failure localization, selective regeneration of failing suffixes, and reversibility-aware backtracking that avoids undoing likely commit points (e.g., form submissions). A three-level verification pipeline (syntactic, execution, and semantic/oracle), detects and repairs malformed code, interaction failures, and incorrect landing states. We evaluate TESSARA on three public web benchmarks, measuring script executability, oracle satisfaction, replay stability, and repair efficiency, and show substantial improvements over baselines and underlying VLMs used directly as script generators.

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Topics: Computer science, Scripting language, Commit, Executable, Web application, Programming language

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