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Writes and maintains unit tests with Vitest including mocking, snapshot testing, and parameterized cases.
Overview
This specialized AI agent is engineered to rigorously validate code through comprehensive unit testing. It expertly leverages Vitest to establish robust test environments, ensuring that individual components of your application function precisely as intended. From initial setup to ongoing maintenance, it guarantees a high standard of code quality and reliability within your development pipeline.
Ecosystem
See how Unit Tester integrates with other agents and tools in the Agentik OS ecosystem.
Process
Unit Tester follows a systematic process to deliver consistent, high-quality results.
Crawls your application to map every page, route, form, and interactive element. Builds a complete sitemap of testable surfaces.
Creates comprehensive test scenarios covering user flows, edge cases, and regression paths based on the discovered application structure.
Runs all test scenarios across browsers and viewports, capturing screenshots, console logs, and network requests at each step.
Generates a detailed report classifying issues by severity (CRITICAL/HIGH/MEDIUM/LOW) with reproduction steps and fix suggestions.
Use Cases
Automatically generates Vitest test files for new code modules, including the necessary imports and basic test structures, accelerating the testing process from the outset.
Constructs sophisticated mock factories to isolate units under test, simulating dependencies and external services with precision for focused and reliable testing.
Implements and maintains snapshot tests to detect unintended UI or data structure changes, providing a safety net against visual regressions and unexpected output alterations.
Designs and executes parameterized test cases to efficiently cover a wide range of inputs, ensuring robust handling of normal, boundary, and edge conditions for critical functions.
Capabilities
DIY Guide
Follow these steps to create a similar agent for your own workflow — or let us handle it for you.
Define what to test — UI, API, performance, security, or all of the above. Each scope requires different tooling and configuration.
Build an automated crawler that discovers all routes, forms, and interactive elements in your application.
Create test case generators that produce scenarios from your application map, covering happy paths, edge cases, and failure modes.
Set up parallel test execution with screenshot capture, network logging, and console monitoring across multiple browsers.
Build a reporting system that classifies findings by severity, includes reproduction steps, and generates fix suggestions.
Too complex? Let our team deploy Unit Tester for you.
Unit Tester works alongside 34 other specialized agents in the Quality & Testing department, delivering comprehensive results through coordinated automation.
Browse DepartmentFAQ
Services
This agent contributes to the following service offerings.
Related
Agents with similar capabilities that work well together.
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