allow to group tests by topic

dune/gdt/test/CMakeLists.txt

@@ -13,8 +13,25 @@ foreach (test ${testnames})
   add_dune_alugrid_flags(${test})
   TARGET_LINK_LIBRARIES(${test} ${COMMON_LIBS})
   set_tests_properties(${test} PROPERTIES TIMEOUT 360)
+  if (${test} MATCHES spaces)
+    list(APPEND spaces_test_binaries ${test})
+  endif (${test})
+  if (${test} MATCHES operators)
+    list(APPEND operators_test_binaries ${test})
+  endif (${test})
+  if (${test} MATCHES linearelliptic AND ${test} MATCHES alugrid)
+    list(APPEND linearelliptic_alugrid_test_binaries ${test})
+  endif (${test})
+  if (${test} MATCHES linearelliptic AND ${test} MATCHES sgrid)
+    list(APPEND linearelliptic_sgrid_test_binaries ${test})
+  endif (${test})
 endforeach (test ${testnames})
 
+add_custom_target(test_binaries_space DEPENDS ${spaces_test_binaries})
+add_custom_target(test_binaries_operator DEPENDS ${operators_test_binaries})
+add_custom_target(test_binaries_linearelliptic_cg_discretization_alugrid DEPENDS ${linearelliptic_alugrid_test_binaries})
+add_custom_target(test_binaries_linearelliptic_cg_discretization_sgrid DEPENDS ${linearelliptic_sgrid_test_binaries})
+
 # link spe10 data file if present
 if (NOT ${SPE10MODEL1DATA} STREQUAL "SPE10MODEL1DATA-NOTFOUND")
   set (SPE10MODEL1DATA_TARGET_FILENAME "${CMAKE_CURRENT_BINARY_DIR}/perm_case1.dat")