consider catch2 instead of googletest

scgmlz / Steca

Stress and texture calculator (data reduction for neutron and x-ray materials diffraction)

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consider catch2 instead of googletest #230

Closed jwuttke closed 5 years ago

jwuttke commented 6 years ago

Our unit tests, in directory utest, currently use the library Googletest, which is distributed along with Steca in the directory 3rdparty/gtest.

Googletest is bloated and complicated. Therefore, we should try out whether we can replace it by the much lighter library Catch2 (https://github.com/catchorg/Catch2).

jwuttke commented 5 years ago

Investigated by Paul Cuccuru, May 2019. Conclusion:

Catch2 works fine.
Replacing gtest is straightforward.
Converted code preserved in branch 'catch2_replaces_gtest'.
Catch2 has no equivalent for ASSERT_DEATH; we would have to replace the qFatal event handler.
Catch2 does not support Mockups. We wait for Gennady to decide whether gtest/mockup shall be required for BornAgain.