The NekTests.py module contains the Nek5000 verification tests, implemented using the Python standard-library unittest framework. NekTests requires Python 2.7 or higher.
The tests may be run using the Python standard-library 'unittest' module, which requires no additional dependencies. The tests may also be run with any third-party testing tool compatible with unittest, such as nose, py.test, TwistedTrial, and others.
Before running the tests, these environment variables should be defined:
SOURCE_ROOT: Points to the top-level Nek5000 repository. (default: none)CC: The C compiler you wish to use. (default: gcc)F77: The Fortran 77 compiler you wish to use. (default gfortran)IFMPI=[true|false]: If true, run tests with MPI. (default: false)
These environment variables may optionally be defined:
EXAMPLES_ROOT: Points to an alternate Nek5000 examples directory. For example,$HOME/NekExamples. (default: this directory)TOOLS_ROOT: Points to an alternate directory for Nek5000 tools. (default:$SOURCE_ROOT/tools)SCRIPTS_ROOT: Points to an alternate directory Nek5000 scripts directory.TOOLS_BIN: If defined, compile tools in this directory. (default:$SOURCE_ROOT/bin)LOG_ROOT: If defined, move completed logs into this directory. If not defined, leave logs in the example folders. (default: undefined)VERBOSE_TESTS=[true|false]: If true, display standard output from compiler and Nek5000 to terminal window. Standard output will always be recorded in logfiles, whether VERBOSE_TESTS is true or false. (default: true)PARALLEL_PROCS: The number of processes to use when running with MPI. (default: 4)
To run all the tests, first cd into this directory and then run:
$ python -m 'unittest' NekTests
If you wish to run tests for just one example problem (for example, "TurbChannel"), run:
$ python -m 'unittest' NekTests.TurbChannel
If you wish to run tests for just one example problem and one
formulation/parallelization (for example, test_PnPn_Serial), run:
$ python -m 'unittest' NekTests.TurbChannel.test_PnPn_Serial