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CoTester

CoTester is an AI software-testing agent that creates, refines, executes, debugs, and self-heals tests across real browsers and devices.

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CoTester interface for creating and executing software tests

Product overview

What is CoTester?

CoTester is TestGrid's enterprise AI agent for software testing. It learns product context and quality-assurance workflows, generates test logic from requirements, runs tests on real browsers and devices, and adapts the tests when a user interface changes. The product supports no-code, low-code, and direct code editing so product staff, manual testers, QA engineers, and automation specialists can work at different levels of control.

A vision-language model interprets the screen's visuals, text, and layout during execution. CoTester can detect and log bugs, schedule test runs, integrate custom hooks and test data, and pause at critical checkpoints for human approval. Its AgentRx auto-heal engine updates test logic during execution when structural UI changes or redesigns would otherwise break a test.

How to Use CoTester

  1. Upload documentation, link a Jira story, paste a URL, or describe what needs testing.
  2. Let CoTester generate test cases and the underlying test logic.
  3. Refine steps through chat, a visual editor, record-and-play, or code.
  4. Approve the test at required checkpoints.
  5. Execute it on real devices and browsers, then review logs, screenshots, and detected bugs.
  6. Re-run tests as the product changes and allow AgentRx to adapt affected logic.

Core Features

  • Context-aware test creation: Converts specifications and product context into complete test logic.
  • Vision-language execution: Interprets interface visuals, text, and layout during a test.
  • Self-healing tests: Updates test logic when the application's UI structure changes.
  • Bug logging: Detects, flags, and records issues during execution.
  • Human guardrails: Pauses at critical points for review and approval.
  • Flexible authoring: Supports no-code, low-code, and editable test scripts.

Use Cases

  • Regression testing: Schedule repeatable tests for nightly builds and releases.
  • Cross-browser validation: Run equivalent flows across real browsers.
  • Mobile testing: Execute user journeys on real mobile devices.
  • Enterprise application QA: Test workflows in cloud ERP and other business systems.
  • Agile test authoring: Generate tests directly from Jira stories and product specifications.

Frequently Asked Questions

Who can use CoTester?

The product is designed for QA engineers, automation beginners, business analysts, product owners, manual testers, and SDETs.

Can teams edit generated tests?

Yes. Users can edit steps through scriptless, record-and-play, low-code, or full-code modes.

Can CoTester be deployed privately?

Yes. TestGrid lists private-cloud and on-premises support.

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