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WENO Test Cases

Test cases for individual functions (unit tests) as well as tests for the complete scheme (integration tests). All tests are managed with the software Catch2 and are compiled into one executable the different tests can then be run individually by selecting the appropiate tags. To list all available tags use:

tests.exe -t

For further information about command line arguments in Catch2 use

tests.exe -?

Run All Tests

With runTest <Option> the test cases can be run together.

Use runTest --runAll to run all test cases and generate a small test report in report/testReport.html View the report with your browser, e.g.: firefox report/testReport.html

Use runTest --runSimple to run a reduced set of test cases. Suitable for a quick check without generating a test report

Included Tests

Currently these tests are available

  1. geometryWENO Class A test function for the Jacobian and the gaussQuad function is provided. Run with WENO_TEST [baseTest] in the 2DMesh case directory.
  2. WENOBase Class Check IO functionality of reading and writing lists Execute in 2DMesh case directory with WENO_TEST [IOTest]
  3. WENOUpwindFit An integration test to compare the result of the WENO scheme to the linear scheme for the calculation of the divergence of a scalar field. This can be executed for all the different mesh cases to check the effect of boundaries
  4. Advection test case Test the WENOUpwindFit scheme by using the test case, the rotation of a slotted disk, designed by Zalesak [1]

[1] Zalesak, S.T. Fully Multidimensional Flux-Corrected Algorithms for Fluids. J. Comput. Phys. 1979, 31, 335–362.

  1. GlobalFvMesh test case Test if the mapping of global to local cellID and reverse is correct. As this test is done in parallel it is not included in the Catch2 environment but uses FatalError statements to print out error messages

Mesh Study

To generate a small mesh study of the implemented WENO scheme the script WENOEXT/tests/Case/runMeshStudy.sh can be executed. It runs on the 2D mesh the WENOUpwindFit test case for a 50x50, 100x100, 150x150 mesh storing the results in a file. The results can be plotted with the gnuplot script provided in the same directory.