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AI-Powered Unit Test Generation

From source code to passing tests automatically.

RoostGPT analyzes your codebase, generates framework-native unit tests, fixes failing tests, and helps teams reach 95%+ code coverage in minutes.

Java Python Go C# Node.js React C++
01Analyzing AST, call graph, and dependencies...
02Generating framework-native test cases...
03Running tests and repairing failures...
04Coverage report generated successfully.
95%+

Code coverage reached with generated, passing unit tests.

Customers Adopting Generative AI Driven Testing and Development

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Keep building the same way... using the same DevOps tools you love!
The Roost platform takes care of the complex parts of testing and deploying changes.

 

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Five Steps to Full Coverage

Analyze, plan, write, fix, and pass.

RoostGPT turns code understanding into executable tests and keeps
improving them until they compile, run, and pass.

1
Analyze

Reads source code using AST parsing, call graph analysis, and dependency mapping.

2
Plan

Identifies which test classes, paths, and scenarios need to be generated.

3
Write

Creates unit tests with assertions, mocks, setup, teardown, and edge cases.

4
Fix

Diagnoses compile, runtime, import, type, and mock issues, then self-corrects.

5
Pass

Executes tests, measures real coverage, and generates reports automatically.

Seven Languages. One Platform.

Generate tests across your engineering stack.

Use one platform for framework-native output across modern application codebases.

Languages supported

  • ✓Java
  • ✓Python
  • ✓Go
  • ✓C#
  • ✓Node.js
  • ✓React
  • ✓C++

Five Steps to Full Coverage

Analyze, plan, write, fix, and pass.

RoostGPT turns code understanding into executable tests and keeps
improving them until they compile, run, and pass.

⌘

AST Parsing

Understands class structures, method signatures, type relationships, and source layout.

↔

Call Graph Analysis

Maps how methods call each other to identify critical testing paths.

☄

AST Parsing

Understands class structures, method signatures, type relationships, and source layout.

Tests That Fix Themselves

Generated tests improve until they pass.

When a test fails to compile or run, RoostGPT diagnoses the issue and corrects common failures automatically.

  • ✓Constructor mismatches
  • ✓Missing imports
  • ✓Incorrect types
  • ✓Runtime failures
  • ✓Mock setup errors
  • ✓Assertion mismatches
  • ✓Dependency resolution issues

Beyond the Happy Path

Edge cases developers often miss.

RoostGPT generates tests for boundary values, missing inputs, failures, exception paths, and concurrency risks.

Boundary Values

Empty values, zero values, min/max values, overflow cases, and list size variations.

Null Inputs

Null values, missing fields, empty optionals, blank parameters, and undefined inputs.

Negative Testing

Invalid inputs, unauthorized access, malformed data, and failure conditions.

Exception Paths

Throw statements, catch blocks, timeout handling, and error propagation.

Concurrency

Race conditions, thread safety, concurrent modifications, and deadlock risks.

Enterprise-Ready Integrations

Fits into existing engineering workflows.

Run RoostGPT in CI pipelines, across git providers, and with the AI provider of your choice.

CI/CD Native

Runs headlessly with standard exit codes, JUnit output, and artifact uploads.

Git Provider Support

Works with GitHub, GitLab, Azure DevOps, and Bitbucket.

Deployment Options

Runs on macOS, Linux, Windows, Docker, and enterprise environments.

AI Provider Flexibility

Bring your own provider and switch models without changing application code.

Multi-Format Reports

Generate HTML, Excel, PDF, JSON, XML, and DOCX coverage reports.

Secure Operations

Supports proxy and SSL environments, encrypted credentials, and license management.

Traditional Testing vs. RoostGPT

Move from manual effort to
automated coverage.

Category Traditional Testing  RoostGPT
Test Creation Hours or days per module Minutes per module
Language Coverage Separate tools per language 7 languages in one platform
Framework Support Often locked to one framework 15+ frameworks supported
Code Analysis Manual developer review AST, call graph, and dependency analysis
Edge Cases Depends on developer experience Automatically generated
Mock Generation Manual setup Framework-native mocks
Test Execution Separate setup required Built-in compile, run, and coverage
Self-Correction Developer fixes failures Agent auto-corrects failures
Maintenance Manual updates Diff-aware incremental regeneration
AI Provider  Often single-vendor Supports multiple providers
Cost Visibility Limited Tracks cost per run and provider

Complete Unit Testing, Automated

Everything teams need for
production-grade test
automation.

Unit test generation across 7 languages
Native support for 15+ testing frameworks
AST parsing and call graph analysis
Dependency mapping and mock generation
Agentic self-correcting test generation
Automatic compilation and execution
Code coverage measurement
Edge case and boundary generation
Negative and exception path coverage
Diff-aware incremental regeneration
Support for 10 AI providers
CLI, VS Code Extension, and Web UI
Docker and cross-platform deployment
Knowledge base persistence
Multi-format reporting
AI cost tracking
Encrypted credential handling
Enterprise license management

Stop writing unit tests
manually.

Start generating production-ready tests automatically. RoostGPT turns source code into passing, framework-native unit tests with coverage reports, self-correction, and CI/CD integration.

Book an Enterprise Demo

Ready to modernize enterprise QA?

Turn software change into maintained test coverage and release confidence.

In a 30-minute session, see how RoostGPT connects to your requirements, code, APIs, UI flows, and enterprise workflows to generate, maintain, govern, and report quality coverage across the SDLC.