test(tests): added test suite

The test suite is extensive. Note that LLMs were used to aid in the development of the test suite. All LLM generated code was manually reviewed.

tests/meson.build

@@ -1,22 +1,39 @@
 if get_option('build_tests')
-#    subdir('discritization')
-#
-#    test_include_dir = include_directories('include')
-#
-#    catch2_dep = dependency('Catch2', required:true)
-    # Stroid exchanges MFEM and standard-library objects with the sandboxes.
-    # Always build it against the parent's MFEM and C++ ABI, never an unrelated
-    # installed archive (even when pkg-config reports one).
-    stroid_project = subproject('stroid', default_options: [
-      'build_tests=false',
-      'build_tools=false',
-      'build_python=false',
-      'pkg_config=false',
-    ])
-    stroid_dep = stroid_project.get_variable('stroid_dep')
-#
-#    test_sources = discretization_test_sources
-#    executable('serif_tests', test_sources, dependencies: [serif_dep, catch2_dep, stroid_dep], include_directories: test_include_dir)
+  test('mfem_build_policy', python_build,
+    args: files('../tools/test_mfem_build_policy.py'), suite: 'build', timeout: 60)
+  catch2_dep = dependency('catch2-with-main', version: '>=3.0', fallback: ['catch2', 'catch2_with_main_dep'], default_options: ['tests=false', 'install=false'])
 
-    subdir('sandbox')
+  subdir('discritization')
+  subdir('mapping')
+  subdir('eos')
+  subdir('quadrature')
+  subdir('equations')
+  subdir('surface')
+  subdir('deformation')
+  subdir('utils')
+  subdir('normalization')
+  subdir('preconditioner')
+  subdir('model')
+  subdir('solver')
+  subdir('serialize')
+
+  test_include_dir = include_directories('include')
+  test_sources = discretization_test_sources + mapping_test_sources + eos_test_sources + quadrature_test_sources + equation_test_sources + surface_test_sources + deformation_test_sources + normalization_test_sources
+  serif_tests = executable(
+    'serif_tests',
+    test_sources,
+    dependencies: [serif_dep, catch2_dep, stroid_dep],
+    include_directories: test_include_dir,
+    build_rpath: mfem_runtime_prefix == '' ? '' : mfem_runtime_prefix / 'lib',
+  )
+  test('serif_unit_tests', serif_tests, args: ['[unit]~[vector_gradient]'], suite: 'unit', timeout: 120)
+  # These exhaustive dense/tensor comparisons have their own budget without reducing the ordinary unit checks.
+  test('serif_vector_gradient_tests', serif_tests, args: ['[unit][vector_gradient]'], suite: 'unit', timeout: 300, is_parallel: false)
+  test('serif_integration_tests', serif_tests, args: ['[integration]~[nonconforming]~[serial_backend]'], suite: 'integration', timeout: 300)
+  test('serif_serial_backend_tests', serif_tests, args: ['[integration][serial_backend]~[nonconforming]'], suite: 'integration', timeout: 600)
+
+  # Keep native nonconforming studies together without shortening the existing tests' budgets.
+  test('serif_nonconforming_tests', serif_tests, args: ['[integration][nonconforming]'], suite: 'integration', timeout: 1200, is_parallel: false)
+
+  subdir('sandbox')
 endif