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Accelerate your unit & integration testing

Automated Unit and Integration Testing Tool for C/C++

Cantata is an automated unit and integration testing tool for C and C++ languages, enabling developers to verify standard compliant or business critical code on host native and embedded target platforms.

Cantata helps accelerate compliance with the standard’s dynamic testing requirements by automating:

  • C and C++ unit testing framework generation
  • Test execution
  • Results diagnostics and report generation

Cantata is integrated with an extensive set of embedded development toolchains, from compilers and static analysis tools to build and requirements management tools. The ECLIPSE® GUI, tight tool integrations and tests written in the source C/C++ code, all make Cantata easy to use.


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Works in your environment - A best in class tool integrated with an extensive set of embedded development toolchains - circuit board

Works with your environment

Works with your environment
Cantata is integrated with an extensive set of embedded development toolchains, and provides unrestricted deployment to and for use on targets.

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Integrated test framework - Automated C/C++ test script production test executable building, running on target and detailed diagnostic on host, for unit and integration testing

Integrated test framework  

Integrated test framework
A powerful integrated test framework automates: C/C++ test script production, test executable building, running on target and detailed diagnostics on host, for unit and integration testing.

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Source Code Metrics

Source Code Metrics

Cantata provides over 300 source code metrics on C/C++ which provides useful objective measurement and visualisation of non-functional qualities of the source code.

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Deep code coverage analysis

Deep code coverage analysis
Simple to use for the highest regulatory standards, and fully integrated into tests, the deep analysis easily pin-points gaps in code coverage.

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 Cantata AutoTest automatically generates complete passing unit test scripts - Metal hand pressing red button


Automatic generation of test case vectors can exercise 100% code coverage while checking data, parameters and call order, creating regression unit tests or closing gaps in code coverage.

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Why invest in Cantata?

Why invest in Cantata? Industry leaders use Cantata to:

  • Cut cost of standards compliance
  • Reduce commercial risks of software failure
  • Lower testing costs
  • Shorten time to market

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 Requirements traceablity - Bidirectional requirements traceablity between requirements and tests

Requirements traceability

Requirements traceability
Bi-directional traceability from ReqIF, Excel®, Polarion®, DOORs®, PTC Integrity® or CodeBeamer® to Cantata tests with results status and code coverage information.

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 Cantata Wrapping automatically intercepts calls from and within the software under test to supplement stub simulations - unique call control - connected icons

Unique call control – Wrapping 

Unique call control – Wrapping
Unique Cantata Wrapping automatically intercepts calls from and within the software under test to supplement stub simulations.

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Flexible testing techniques - One tool for all your embedded unit & integration testing needs - Cantata makes it easy to select and combine testing techniques for any style of test for C/C++ code

Flexible testing techniques

Flexible testing techniques
Cantata makes it easy to combine techniques for embedded unit and integration testing:

  • requirements driven, robustness and structural testing
  • black-box/white-box
  • procedural/object oriented
  • isolation/integration

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Automatic generation

AutoTest generated cases

Generate automatically passing Cantata unit tests to exercise all the C and C++ code.

Environment compatible

It works with your own environment

A tight integration with cross-compilation environments and intuitive C/C++ code tests in Eclipse GUI or code editors, make it easy to slot into any toolchain, and fast for developers to learn.

Lower cost

Lower your testing costs

Cut time and effort with highly automated safety standards compliant testing.


Certified unit & integration testing tool

Certified by SGS-TÜV SAAR GmbH for use at the highest integrity levels for safety-related standards. Certification kits are free of charge.

Lower risk

Reduce the risk of software failure

Unit testing is the most thorough way to test application code and prevent bugs.

Full coverage

Achieve 100% Code Coverage

Code analysis is made simpler by customisable coverage Rule Sets, which automate all the code instrumentation, data reporting and required coverage checking, for all the main software safety standards.


QA Systems static analysis and software testing tools support verification in the linear flow of software development below. We recommend applying sequential approach to these verification stages with tools that are designed and targeted for each purpose.

Flow process Cantata
  • COMPLY     > Use QA-MISRA for fast coding standard compliance at the developer’s desktop first.
  • TEST           > Use Cantata for automated dynamic execution of the standard compliant software.
  • ANALYZE   > Use Astrée for proving absence of run-time errors on whole application.
    NB: Astrée uses the same configuration as QA-MISRA, so the effort to apply it later to a QA-MISRA project later is low.

Special shared license bundle option

QA-MISRA and Cantata share the same license technology. This allows customers to obtain a bundled solution for both tools to share the same concurrent license pool, as well as the tools being integrated together in the Eclipse based IDE.

When QA-MISRA is purchased as a bundle with Cantata or when an existing Cantata license is converted to a bundle, there are very attractive combined prices available. Please contact us for more information.

"Module testing early during development is becoming more important due to the increasing complexity of software. In practice Cantata has proved successful and increased C++ unit testing efficiency. Cantata from QA Systems offers an ideal solution for the creation and execution of unit and integration tests, including coverage analysis."

Matthias Schmidt, Test management, Verification and Validation,
Bosch Engineering GmbH

"Through years of experience in unit testing using Cantata for various platforms and languages… we are confident in suggesting Cantata to our clients."

Padmakumar TV, Senior Engineering Specialist,
TATA Elxsi

"No-one pretends that Unit Testing is the most interesting activity in the world, but that's all the more reason why we need tools that are usable and reliable, which yours are."

BAE Systems


International software safety standards require evidence of low level (unit and integration) testing to obtain certification for the device software.

In addition, most standards require that verification tools used are certified / qualified or proven through use. Cantata has been independently certified by SGS-TÜV SAAR GmbH for the main software safety standards.

Standard specific Cantata tool certification kits are provided free of charge and contain everything needed out-of-the-box as well as comprehensive guidance to help you achieve certification for your device software.
Tool qualification kits of Cantata are also available where tool certification against a standard is not permitted as the tool must be qualified separately for each project (e.g. for DO-178B/C).

Please contact us for more information about tool certification / qualification kits.

Cantata has been successfully used to comply with the unit and integration testing requirements of:


ISO 26262

Road vehicles – Functional safety

IEC 60880

Nuclear Power Plants –  Software Aspects for Computer-Based Systems (Safety Category A)

IEC 62304

Medical device software – software life cycle processes

IEC 61508

Functional Safety of Electrical/ Electronic/ Programmable Electronic Safety-related Systems

EN 50128/50657

Railway applications – Communication, signalling and processing systems & Software on board rolling stock


Software Considerations in Airborne Systems and Equipment Certification


Automotive – SPICE

ISO/IEC 15504 Information technology — Process assessment


Guidelines for Communication, Navigation, Surveillance and Air Traffic Management (CNS/ATM) Systems Software Integrity Assurance.


Space Engineering: Software

Def Stan 00-55

UK Requirements for Safety Related Software in Defence Equipment


US Military-Standard-498 Software Development and Documentation.

NASA 8719.13C

NASA Technical Standard: Software Safety Standard


Automated Regression Testing
Automated regression testing with Cantata is supported through use of continuous integration tools such as Jenkins®.

Cantata Wrappers
Cantata Wrappers can intercept code calls. This quick demo introduces Wrappers and their use with an embedded target.

Stuck with RTRT?
The RTRT Converter automatically recycles legacy RTRT PTUs into Cantata, retaining all existing test functionality.

Why buy from QA Systems

  • A reliable testing vendor for 25 years
  • Hundreds of customers across all safety and business critical sectors
  • We listen to our customers to guide product enhancements
  • We listen to our customers to guide product enhancements
  • Experienced direct technical support teams
  • Tool training and on-site consultancy
Automotive Case Study
Aerospace & Defence Case Study
Railways Case Study
Medical Devices Case Study
Industrial Automation Case Study
IT & Telco Case Study
Automotive Case Study
Aerospace & Defence Case Study
Medical Device Case Study
Hitachi Vantara Case Study
SAAB Case Study
Thales Case Study
Creo Medical Case Study
G4S Case Study
Marconi Case Study
Innoviz Case Study
Ultra Electronics Case Study
FastFocus Case Study
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