TESTR is Flytebit's AI-powered testing platform that works backward from source code. Instead of depending on late manual test planning, TESTR analyzes code behavior directly, proposes what should be tested, generates executable tests, runs them through CI/CD, and improves coverage over time.

The platform starts from atomic code behavior and builds outward. At the core are Unit Test Cases (UTCs), structured testing units derived from functions and methods, then enriched with AI-generated executable test code and continuous execution data.

Capabilities

• Zero-input UTC generation: TESTR reads your source code and derives what to test without spec files, annotations, or setup-heavy configuration.

• 11-language support: Works with Python, JavaScript, TypeScript, Java, C#, PHP, Go, Ruby, Rust, C, and C++.

• Executable test code: Generates runnable tests for pytest, Jest, JUnit, NUnit, PHPUnit, RSpec, and native runners for Go, Rust, C, and C++. Includes pre-generated mocks and stubs.

• AI failure analysis: Produces root-cause explanations, execution traces, and diff-ready fixes when tests fail.

• HITL governance: AI-proposed UTCs stay under human control and require approval before execution.

• CI/CD integration: Integrates with GitHub, GitLab, and Bitbucket to trigger automated testing on code pushes.

• Coverage and reporting: Tracks execution history, pass/fail trends, flakiness, and line, branch, and function-level coverage.

• Learning loop: Detects untested paths and proposes additional UTCs from execution history and production signals.

Core Concepts

• Unit Test Cases (UTCs): Atomic, code-derived testing units that form the foundation of TESTR's lifecycle.

• AI Failure Intelligence: Context-aware analysis that explains why failures happen and what to change.

Trust & Security

• Private deployment: Run TESTR fully inside your VPC or on-premises infrastructure.

• Zero data egress: Test generation, execution, and analysis stay within your network boundary.

• Full audit trail: UTC generation, approvals, and execution events are logged for traceability and governance.

Who It's For

• Fast-moving startups: Keep delivery speed high without building a large manual QA function.

• Scale-ups with legacy debt: Retrofit meaningful coverage onto existing codebases and expose fragile zones.

• Engineering leaders: Measure test quality with actionable insights beyond simple CI pass rates.

In short, TESTR turns testing into a continuous, governed, and intelligence-driven engineering capability that scales with development velocity.