CoTester
By CoTester
Intelligent developer copilot automating code completion, refactoring, and debugging.
Overview
Summary: TestGrid CoTester is an AI-powered software testing agent developed by TestGrid that helps QA teams automate software testing. It converts natural-language instructions, application requirements, user stories, and recorded workflows into editable test cases, then executes them across supported web and mobile environments. CoTester can identify potential issues, capture execution evidence, generate test summaries, and adapt automated tests when application interfaces change. It is designed to reduce repetitive testing work and simplify test creation for both technical and non-technical users.
What is TestGrid CoTester?
TestGrid CoTester is an AI agent built to support the software quality assurance (QA) and testing lifecycle. Instead of requiring testers to manually write every test script, CoTester allows users to describe testing requirements in natural language. It uses these instructions, along with application URLs, specifications, and user stories, to generate structured and editable test cases.
The platform supports AI-assisted test creation, automated execution, test debugging, and result analysis. Users can review and modify generated steps, run tests across supported browsers and devices, and examine screenshots, logs, validation results, and AI-generated summaries. Its AgentRx technology helps maintain automation when an application's user interface changes by identifying updated elements and repairing broken locator logic.
CoTester supports testing workflows for web applications, Android and iOS applications, APIs, and enterprise software such as SAP, Salesforce, Workday, Microsoft Dynamics 365, and ServiceNow. It offers codeless, record-and-playback, low-code, and full-code approaches, making it useful for manual testers, QA engineers, developers, automation engineers, and enterprise testing teams.
Introduced by TestGrid in April 2024, CoTester is part of the company's broader AI-powered testing ecosystem. It is designed to help organizations accelerate regression testing, improve test coverage, and reduce the manual effort involved in maintaining automated test suites.
Verifiable Stats
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Developer: TestGrid
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Initial announcement: April 5, 2024
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Product type: AI-powered software testing agent
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Supported application types: Web, Android, iOS, and enterprise applications
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Testing capabilities: AI test generation, automated execution, debugging, test maintenance, and reporting
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Testing modes: Codeless, record-and-playback, low-code, and full-code
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AI maintenance technology: AgentRx self-healing engine
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Enterprise application support: SAP, Salesforce, Workday, Microsoft Dynamics 365, NetSuite, ServiceNow, and Zoho
Screenshots & Demo
Key Features
Core capabilities and functionalities provided by CoTester.
Context-Aware Code Completion & Synthesis
Delivers low-latency inline code completions, multi-token suggestions, and semantic completions customized to the repository context.
Multi-File Codebase Indexing & Exploration
Deeply scans project files, dependency trees, and symbol references to provide comprehensive cross-file edits and refactorings.
Automated Git & Terminal Workflow Automation
Executes shell commands, analyzes test runs, resolves syntax and runtime bugs, and crafts clean commit messages and pull requests.
Architectural Refactoring & Security Audit
Spots security vulnerabilities, dead code paths, and architectural smells, providing one-click semantic fixes and unit tests.
Pros & Cons
Key strengths and potential limitations of CoTester.
What We Like
- AI-Powered Test Case Generation: CoTester converts natural-language instructions, requirements, and user stories into structured test cases, reducing the need to write every test manually
- Codeless Testing Capabilities: Its natural-language and codeless testing approach makes test automation more accessible to manual testers and team members without extensive programming experience.
- Support for Multiple Application Types: The platform supports testing workflows for web applications, Android and iOS apps, APIs, and enterprise applications, making it useful across different software environments.
- Self-Healing Test Automation: Its AgentRx technology is designed to help identify and repair broken automation when application interfaces change, potentially reducing test maintenance
- Automated Test Execution: CoTester can execute generated test cases and help teams automate repetitive testing activities, including regression testing.
Where It Falls Short
- AI-Generated Tests Need Human Review: Automatically generated test cases may miss important business rules or edge cases, so QA professionals still need to review and validate them.
- Learning Curve for Advanced Features: Although natural-language testing simplifies automation, configuring complex workflows and advanced testing scenarios may require technical knowledge.
- Application Compatibility Limitations: Support for different applications and environments does not necessarily mean every framework, technology stack, or application configuration will work equally well.
- Self-Healing Is Not Always Perfect: AI-based test maintenance can help address interface changes, but complex UI updates may still require manual corrections and troubleshooting.
- Dependence on Clear Test Instructions: Vague, incomplete, or ambiguous requirements can lead to inaccurate test cases and unreliable execution results.
Use Cases
Discover common workflows and scenarios where CoTester excels.
Automated Test Case Generation
QA teams can use CoTester to generate test cases from natural-language instructions, application requirements, and user stories. This reduces the time spent manually preparing test scenarios and helps teams build test coverage more efficiently.
Web Application Testing
Software testers can use CoTester to automate interactions with web applications, including navigating pages, filling out forms, clicking buttons, validating elements, and checking application workflows. This helps identify functional issues before a website or web application is released.
Mobile Application Testing
Mobile development teams can use CoTester to test Android and iOS applications across supported devices and environments. They can automate activities such as login, registration, navigation, form submission, and other mobile application interactions
Regression Testing
QA engineers can use CoTester to execute previously created test cases after software updates or code changes. This helps verify that existing application features continue to work correctly and reduces the risk of introducing new defects.
AI-Powered Test Maintenance
Testing teams can use CoTester's AgentRx technology to help maintain automated test scripts when application interfaces change. It can identify updated interface elements and assist in repairing broken test steps, reducing repetitive maintenance work.
API Testing
Developers and QA engineers can use CoTester to support API testing workflows, validate responses, check application integrations, and identify potential communication issues between software components.
Enterprise Application Testing
Organizations using platforms such as SAP, Salesforce, Workday, ServiceNow, and Microsoft Dynamics 365 can use CoTester to automate business workflow testing. This is useful for validating complex enterprise processes and ensuring that critical operations function correctly.
E-commerce Website Testing
E-commerce businesses can use CoTester to test essential shopping workflows, including product searches, product details, shopping cart operations, checkout processes, payment flows, and order confirmation. This helps reduce functional problems that could affect customer purchases.
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