diff --git a/test/freeflow/navierstokes/angeli/CMakeLists.txt b/test/freeflow/navierstokes/angeli/CMakeLists.txt
index ca693667be5b06722f43afd62e997b9c1b77ca1b..0d009f0ba10e12551c80f46567a0b2fcba488fa9 100644
--- a/test/freeflow/navierstokes/angeli/CMakeLists.txt
+++ b/test/freeflow/navierstokes/angeli/CMakeLists.txt
@@ -1,5 +1,6 @@
 dune_add_test(NAME test_ff_navierstokes_angeli
               SOURCES main.cc
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
diff --git a/test/freeflow/navierstokes/channel/1d/CMakeLists.txt b/test/freeflow/navierstokes/channel/1d/CMakeLists.txt
index 4cc81fa91ffd4c23eeb7e069a9b03544940af7d5..039eab0b4370df81ccc7e511b3bab0a1a5001c3c 100644
--- a/test/freeflow/navierstokes/channel/1d/CMakeLists.txt
+++ b/test/freeflow/navierstokes/channel/1d/CMakeLists.txt
@@ -1,5 +1,6 @@
 dune_add_test(NAME test_ff_navierstokes_1d
               SOURCES main.cc
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
diff --git a/test/freeflow/navierstokes/channel/2d/CMakeLists.txt b/test/freeflow/navierstokes/channel/2d/CMakeLists.txt
index 9f86ea6d34ecb1d719b515183d35172fb07451b2..cdb8a2f05ca34e0560f8eeef4b47c2fa72b06378 100644
--- a/test/freeflow/navierstokes/channel/2d/CMakeLists.txt
+++ b/test/freeflow/navierstokes/channel/2d/CMakeLists.txt
@@ -4,6 +4,7 @@ add_executable(test_ff_channel EXCLUDE_FROM_ALL main.cc)
 
 dune_add_test(NAME test_ff_stokes_channel
               TARGET test_ff_channel
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
@@ -14,6 +15,7 @@ dune_add_test(NAME test_ff_stokes_channel
 
 dune_add_test(NAME test_ff_navierstokes_channel
               TARGET test_ff_channel
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
@@ -28,6 +30,7 @@ target_compile_definitions(test_ff_stokesni_channel PUBLIC "NONISOTHERMAL=1")
 
 dune_add_test(NAME test_ff_stokesni_channel_convection
               TARGET test_ff_stokesni_channel
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
@@ -38,6 +41,7 @@ dune_add_test(NAME test_ff_stokesni_channel_convection
 
 dune_add_test(NAME test_ff_stokesni_channel_conduction
               TARGET test_ff_stokesni_channel
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
diff --git a/test/freeflow/navierstokes/channel/3d/CMakeLists.txt b/test/freeflow/navierstokes/channel/3d/CMakeLists.txt
index 6bda40761e6bc48228c2e1f42ad861254840e2b0..771f84986bb4b4abdcf4bf0df7d4eb6ea42d09bc 100644
--- a/test/freeflow/navierstokes/channel/3d/CMakeLists.txt
+++ b/test/freeflow/navierstokes/channel/3d/CMakeLists.txt
@@ -1,5 +1,6 @@
 dune_add_test(NAME test_ff_stokes_channel_3d
               SOURCES main.cc
+              LABELS freeflow
               COMPILE_DEFINITIONS DIM_3D=1
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
@@ -12,6 +13,7 @@ dune_add_test(NAME test_ff_stokes_channel_3d
 
 dune_add_test(NAME test_ff_stokes_channel_pseudo3d
               SOURCES main.cc
+              LABELS freeflow
               COMPILE_DEFINITIONS DIM_3D=0
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
diff --git a/test/freeflow/navierstokes/closedsystem/CMakeLists.txt b/test/freeflow/navierstokes/closedsystem/CMakeLists.txt
index e0d3d85d2f9bc706a0e67ac5068753a12f8a81fb..bfc3911a00eaf0a6484bb3adc7560f65b9b9d7a6 100644
--- a/test/freeflow/navierstokes/closedsystem/CMakeLists.txt
+++ b/test/freeflow/navierstokes/closedsystem/CMakeLists.txt
@@ -2,6 +2,7 @@ add_executable(test_ff_navierstokes_closedsystem EXCLUDE_FROM_ALL main.cc)
 
 dune_add_test(NAME test_ff_navierstokes_closedsystem_ldc_re1
               TARGET test_ff_navierstokes_closedsystem
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
@@ -12,6 +13,7 @@ dune_add_test(NAME test_ff_navierstokes_closedsystem_ldc_re1
 
 dune_add_test(NAME test_ff_navierstokes_closedsystem_ldc_re1000
               TARGET test_ff_navierstokes_closedsystem
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
@@ -22,6 +24,7 @@ dune_add_test(NAME test_ff_navierstokes_closedsystem_ldc_re1000
 
 dune_add_test(NAME test_ff_navierstokes_closedsystem_hydrostaticpressure
               TARGET test_ff_navierstokes_closedsystem
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
diff --git a/test/freeflow/navierstokes/donea/CMakeLists.txt b/test/freeflow/navierstokes/donea/CMakeLists.txt
index e278b9f1996751ff7d40318d60db8ab8e68bdd83..2e96fd605a19d0b8e40701306ecdd9e8e9247184 100644
--- a/test/freeflow/navierstokes/donea/CMakeLists.txt
+++ b/test/freeflow/navierstokes/donea/CMakeLists.txt
@@ -1,5 +1,6 @@
 dune_add_test(NAME test_ff_stokes_donea_nocaching
               SOURCES main.cc
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMPILE_DEFINITIONS ENABLECACHING=0
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
@@ -11,6 +12,7 @@ dune_add_test(NAME test_ff_stokes_donea_nocaching
 
 dune_add_test(NAME test_ff_stokes_donea
               SOURCES main.cc
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMPILE_DEFINITIONS ENABLECACHING=1
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
diff --git a/test/freeflow/navierstokes/kovasznay/CMakeLists.txt b/test/freeflow/navierstokes/kovasznay/CMakeLists.txt
index fe70bc17d45ef023b28a0d237b6662a7d90060bb..01b5e3b1ad4abf4a6cb9bf1c5f850748372b7f23 100644
--- a/test/freeflow/navierstokes/kovasznay/CMakeLists.txt
+++ b/test/freeflow/navierstokes/kovasznay/CMakeLists.txt
@@ -1,5 +1,6 @@
 dune_add_test(NAME test_ff_navierstokes_kovasznay
               SOURCES main.cc
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
diff --git a/test/freeflow/navierstokesnc/channel/CMakeLists.txt b/test/freeflow/navierstokesnc/channel/CMakeLists.txt
index cec68c4b2b003b2886d1af0ff50d00f0de681fd4..c5de800ac9c366238d475e3b30e517ff6acc9ddf 100644
--- a/test/freeflow/navierstokesnc/channel/CMakeLists.txt
+++ b/test/freeflow/navierstokesnc/channel/CMakeLists.txt
@@ -5,6 +5,7 @@ target_compile_definitions(test_ff_stokes2c_mass PUBLIC "USE_MASS=1")
 
 dune_add_test(NAME test_ff_stokes2c_diffusion_mass
               TARGET test_ff_stokes2c_mass
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
@@ -18,6 +19,7 @@ add_executable(test_ff_stokes2c EXCLUDE_FROM_ALL main.cc)
 
 dune_add_test(NAME test_ff_stokes2c_diffusion_mole
               TARGET test_ff_stokes2c
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
@@ -29,6 +31,7 @@ dune_add_test(NAME test_ff_stokes2c_diffusion_mole
 
 dune_add_test(NAME test_ff_stokes2c_advection
               TARGET test_ff_stokes2c
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
@@ -39,6 +42,7 @@ dune_add_test(NAME test_ff_stokes2c_advection
 
 dune_add_test(NAME test_ff_stokes2c_advection_nocaching
               TARGET test_ff_stokes2c
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMPILE_DEFINITIONS ENABLECACHING=0
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
@@ -53,6 +57,7 @@ target_compile_definitions(test_ff_stokes2cni PUBLIC "NONISOTHERMAL=1")
 
 dune_add_test(NAME test_ff_stokes2cni_advection
               TARGET test_ff_stokes2cni
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
@@ -63,6 +68,7 @@ dune_add_test(NAME test_ff_stokes2cni_advection
 
 dune_add_test(NAME test_ff_stokes2cni_diffusion
               TARGET test_ff_stokes2cni
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
diff --git a/test/freeflow/navierstokesnc/densitydrivenflow/CMakeLists.txt b/test/freeflow/navierstokesnc/densitydrivenflow/CMakeLists.txt
index 83c0dc4a7a1a5d03bc3070adac40de48877cbc45..62574cdd452c47800f571a368ac9b81342e40bae 100644
--- a/test/freeflow/navierstokesnc/densitydrivenflow/CMakeLists.txt
+++ b/test/freeflow/navierstokesnc/densitydrivenflow/CMakeLists.txt
@@ -1,6 +1,7 @@
 
 dune_add_test(NAME test_ff_stokes2c_densitydrivenflow
               SOURCES main.cc
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
diff --git a/test/freeflow/navierstokesnc/maxwellstefan/CMakeLists.txt b/test/freeflow/navierstokesnc/maxwellstefan/CMakeLists.txt
index 4f3e7c8ba5e7a6a53a6d09c2f45248adc0496ce4..ea08a973d6bae8b1c507f7926a7db1b853d921e1 100644
--- a/test/freeflow/navierstokesnc/maxwellstefan/CMakeLists.txt
+++ b/test/freeflow/navierstokesnc/maxwellstefan/CMakeLists.txt
@@ -1,5 +1,6 @@
 dune_add_test(NAME test_ff_stokes2c_maxwellstefan
               SOURCES main.cc
+              LABELS freeflow
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
diff --git a/test/freeflow/rans/CMakeLists.txt b/test/freeflow/rans/CMakeLists.txt
index 8afc82c4f16ecc6e9247e3f78da0149f0f6fbd92..0f1cbb58b44d78647aa396caaa724fd973c2624c 100644
--- a/test/freeflow/rans/CMakeLists.txt
+++ b/test/freeflow/rans/CMakeLists.txt
@@ -17,6 +17,7 @@ dune_add_test(NAME test_ff_rans_lauferpipe_kepsilon_twolayers
 dune_add_test(NAME test_ff_rans_lauferpipe_kepsilon_wallfunction
               TARGET test_ff_rans_lauferpipe_kepsilon
               CMAKE_GUARD HAVE_UMFPACK
+              LABELS freeflow rans
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS  --script fuzzy
                         --files ${CMAKE_SOURCE_DIR}/test/references/test_ff_rans_lauferpipe_kepsilon_wallfunction-reference.vtu
@@ -26,6 +27,7 @@ dune_add_test(NAME test_ff_rans_lauferpipe_kepsilon_wallfunction
 
 dune_add_test(NAME test_ff_rans_lauferpipe_lowrekepsilon
               SOURCES main.cc
+              LABELS freeflow rans
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS  --script fuzzy
@@ -37,6 +39,7 @@ target_compile_definitions(test_ff_rans_lauferpipe_lowrekepsilon PUBLIC "LOWREKE
 
 dune_add_test(NAME test_ff_rans_lauferpipe_komega
               SOURCES main.cc
+              LABELS freeflow rans
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS  --script fuzzy
@@ -48,6 +51,7 @@ target_compile_definitions(test_ff_rans_lauferpipe_komega PUBLIC "KOMEGA=1")
 
 dune_add_test(NAME test_ff_rans_lauferpipe_oneeq
               SOURCES main.cc
+              LABELS freeflow rans
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS  --script fuzzy
@@ -59,6 +63,7 @@ target_compile_definitions(test_ff_rans_lauferpipe_oneeq PUBLIC "ONEEQ=1")
 
 dune_add_test(NAME test_ff_rans_lauferpipe_zeroeq
               SOURCES main.cc
+              LABELS freeflow rans
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS  --script fuzzy
@@ -69,6 +74,7 @@ dune_add_test(NAME test_ff_rans_lauferpipe_zeroeq
 
 dune_add_test(NAME test_ff_ransni_zeroeq
               SOURCES main.cc
+              LABELS freeflow rans
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
diff --git a/test/freeflow/ransnc/CMakeLists.txt b/test/freeflow/ransnc/CMakeLists.txt
index 6038490089e64c1a827832ca7f424af318b6fbdc..2035baa933d7a5fc6dd3f53d027bb7e239429e4b 100644
--- a/test/freeflow/ransnc/CMakeLists.txt
+++ b/test/freeflow/ransnc/CMakeLists.txt
@@ -2,6 +2,7 @@ add_input_file_links()
 
 dune_add_test(NAME test_ff_rans2c_kepsilon
               SOURCES main.cc
+              LABELS freeflow rans
               COMPILE_ONLY CMAKE_GUARD HAVE_UMFPACK)
 target_compile_definitions(test_ff_rans2c_kepsilon PUBLIC "KEPSILON=1")
 
@@ -10,6 +11,7 @@ target_compile_definitions(test_ff_rans2cni_kepsilon PUBLIC "KEPSILON=1" "NONISO
 
 dune_add_test(NAME test_ff_rans2cni_kepsilon_twolayer
               TARGET test_ff_rans2cni_kepsilon
+              LABELS freeflow rans
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
@@ -20,6 +22,7 @@ dune_add_test(NAME test_ff_rans2cni_kepsilon_twolayer
 
 dune_add_test(NAME test_ff_rans2cni_kepsilon_wallfunction
               TARGET test_ff_rans2cni_kepsilon
+              LABELS freeflow rans
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
@@ -30,11 +33,13 @@ dune_add_test(NAME test_ff_rans2cni_kepsilon_wallfunction
 
 dune_add_test(NAME test_ff_rans2c_komega
               SOURCES main.cc
+              LABELS freeflow rans
               COMPILE_ONLY CMAKE_GUARD HAVE_UMFPACK)
 target_compile_definitions(test_ff_rans2c_komega PUBLIC "KOMEGA=1")
 
 dune_add_test(NAME test_ff_rans2cni_komega
               SOURCES main.cc
+              LABELS freeflow rans
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
@@ -47,11 +52,13 @@ target_compile_definitions(test_ff_rans2cni_komega PUBLIC "KOMEGA=1" "NONISOTHER
 
 dune_add_test(NAME test_ff_rans2c_lowrekepsilon
               SOURCES main.cc
+              LABELS freeflow rans
               COMPILE_ONLY CMAKE_GUARD HAVE_UMFPACK)
 target_compile_definitions(test_ff_rans2c_lowrekepsilon PUBLIC "LOWREKEPSILON=1")
 
 dune_add_test(NAME test_ff_rans2cni_lowrekepsilon
               SOURCES main.cc
+              LABELS freeflow rans
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
@@ -63,11 +70,13 @@ target_compile_definitions(test_ff_rans2cni_lowrekepsilon PUBLIC "LOWREKEPSILON=
 
 dune_add_test(NAME test_ff_rans2c_oneeq
               SOURCES main.cc
+              LABELS freeflow rans
               COMPILE_ONLY CMAKE_GUARD HAVE_UMFPACK)
 target_compile_definitions(test_ff_rans2c_oneeq PUBLIC "ONEEQ=1")
 
 dune_add_test(NAME test_ff_rans2cni_oneeq
               SOURCES main.cc
+              LABELS freeflow rans
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
@@ -79,6 +88,7 @@ target_compile_definitions(test_ff_rans2cni_oneeq PUBLIC "ONEEQ=1" "NONISOTHERMA
 
 dune_add_test(NAME test_ff_rans2c_zeroeq
               SOURCES main.cc
+              LABELS freeflow rans
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy
@@ -89,6 +99,7 @@ dune_add_test(NAME test_ff_rans2c_zeroeq
 
 dune_add_test(NAME test_ff_rans2cni_zeroeq
               SOURCES main.cc
+              LABELS freeflow rans
               CMAKE_GUARD HAVE_UMFPACK
               COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
               CMD_ARGS       --script fuzzy