Tests are run once for each mod set

Author: harakka

.github/workflows/matrix.yml

@@ -107,7 +107,7 @@ jobs:
             pch: 1
             archive-success: basic-build
             dont_skip_data_only_changes: 1
-            mods: --mods=magiclysm
+            mods: --mods=magiclysm|xedra_evolved
             title: Basic Build and Test (Clang oldest supported, Ubuntu, Curses)
             ccache_limit: 4.5G
             ccache_key: linux-llvm-13

build-scripts/gha_test_only.sh

@@ -57,8 +57,11 @@ else
     export UBSAN_OPTIONS=print_stacktrace=1
     parallel -j "$num_test_jobs" ${parallel_opts} "run_test './tests/cata_test' '('{}')=> ' --user-dir=test_user_dir_{#} {}" ::: "[slow] ~starting_items" "~[slow] ~[.],starting_items"
     if [ -n "$MODS" ]
+    MODLIST=${MODS#--mods=}
     then
-        parallel -j "$num_test_jobs" ${parallel_opts} "run_test './tests/cata_test' 'Mods-('{}')=> ' $(printf %q "${MODS}") --user-dir=modded_{#} {}" ::: "[slow] ~starting_items" "~[slow] ~[.],starting_items"
+        for MODSET in ${MODLIST//|/ }; do
+            parallel -j "$num_test_jobs" ${parallel_opts} "run_test './tests/cata_test' 'Mods-('{}')=> ' --mods=$(printf %q "${MODSET}") --user-dir=modded_{#} {}" ::: "[slow] ~starting_items" "~[slow] ~[.],starting_items"
+        done
     fi
 
     if [ -n "$TEST_STAGE" ]