How to Connect and Test with TPT

Simulink/TargetLink Testing

You develop your code for vehicles model-based in MATLAB? Great that we're meeting! With our testing tool TPT, you can thoroughly test all models created in MATLAB/Simulink or TargetLink; to be precise, you can identify and address any bugs.

TPT´s capabilities

• Connect with MATLAB and directly test models as Model-in-the-Loop (MiL)
• Test the generated code as Software-in-the-Loop (SiL); compatible with TargetLink, Embedded Coder, or Simulink Coder
• Perform regression tests and Back-to-Back tests (e.g., between MiL and SiL simulations or current version compared to an older version)
• Test models on the Linux platform

Benefits of Testing Models with TPT – In Detail:

Compatibility:

• Compatible with the latest versions of MATLAB, Simulink, and TargetLink
• Support for all modeling toolboxes, such as Stateflow
• Testing of all update-capable models is possible

Setting up Test Projects:

• Fully automatic creation of test frames/test harness
• Supports tests on all model levels, from the smallest sub-modules to the complete model
• High robustness to changes by importing interface descriptions directly from Data Dictionaries
• One-Click option for creating Software-in-the-Loop (SiL) test frames
• Support for project-specific m-scripts

Creating Test Cases:

• Support for bus signals, message signals, vectors, model references, triggered subsystems, and various other common modeling techniques
• Automatic test case generation for model coverage from Simulink models and TargetLink models through TPT's feature TASMO
• Parallel modeling of signal behaviors with options for conditional logic (if/else) and parameter dependencies
• Reduced duplication through referencing already created procedures
• Linking of tests and requirements directly in TPT (via Drag&Drop or on-the-fly scripting)

Test Execution:

• Built-in test management for organizing test suites and execution configurations
• Measurement of model and code coverage with TPT's TASMO or existing MATLAB Coverage Toolboxes
• Supports automatic multi-parameter executions for product lines

Reporting:

• Automatic test report generation with 2 levels (Aggregation and Test Detail)
• Presentation of requirement coverage and model/code coverage

C/C++ Code Testing

If you have the code of the system to be tested in C/C++, TPT supports common C or C++ code constructs in the automotive domain. It is also flexible for your manual adjustments, making Software-in-the-Loop (SiL) testing efficient and straightforward.

TPT´s capabilities

• Execution of unit and integration tests (on Windows/Linux) in Software-in-the-Loop (SiL) - extendable with tests on Hardware-in-the-Loop (HiL) systems and even in the actual vehicle
• Execution on both the host and target with reusable tests, including back-to-back analysis and reporting
• Seamless integration with all common Continuous Integration (CI) environments; made even simpler with the Jenkins plugin
• Support for multicore executions

Compatibility:

• Support for all target compilers

Setting up Test Projects:

• Test frames are automatically built and updated with a simple click, supporting compiler switches and defines, with automatic stubbing
• Automatic code wrapper generation
• Compilation with various tools such as MinGW, GCC, or Visual Studio
• Automatic code instrumentation for coverage measurements and automatic test data generation

Creating Test Cases:

• Change parameters at runtime
• Support for both Blackbox and Whitebox tests, enabling automatic testing for defensive programming paradigms

Test Execution:

• Debug during test execution with Eclipse, Visual Studio, and the GNU Debugger (GDB)

In detail: C-Code analysis with TPT

• TPT extracts data types, variables, and functions contained in the code
• Support for
  • Scalar variables
  • Arrays
  • Multidimensional arrays
  • Structs
  • Pointers
  • Maps
  • Curves
  • Class instances
  • Fixed-point scaling for working with physical values

AUTOSAR Software Component Testing

TPT comprehensively supports AUTOSAR, making it the testing solution for the automotive standard in software development. Notably, TPT automatically generates the test framework and the corresponding Runtime Environment (RTE) based on ARXML files and associated software components. This applies to both atomic software components and compositions of multiple components or virtual control units.

Supported interfaces include:

• Client/Server Ports
• Sender/Receiver Ports
• Per-Instance Memory (PIM)
• Inter-Runnable Variables (IRV)
• Mode Declaration Groups
• Exclusive Areas
• Calibration Parameter Ports

In detail: Testing Virtual ECUs with TPT

By using Silver, TPT allows the complete simulation and testing of virtual ECUs, including AUTOSAR RTE and Basic Software (BSW). Both environments enable the simulation of AUTOSAR software components or entire virtual ECUs, and TPT can control them remotely.