fixed test script

scripts/test.sh

@@ -18,8 +18,21 @@ echo "$LD_LIBRARY_PATH"
 
 mkdir -pv bin/test
 
-echo "Building and running tests one by one..."
+echo "Building tests..."
 
-set -v
+# add compile commands to this array
+COMPILE_COMMANDS=(
+    "$CXX_WITH_FLAGS -Lbin/lib -l:nbt.so -o bin/test/nbt_helpers src/test/nbt_helpers.cpp"
+)
+for command in ${!COMPILE_COMMANDS[@]}; do
+    echo "${COMPILE_COMMANDS[command]}"
+    ${COMPILE_COMMANDS[command]} &
+done
 
-"$CXX_WITH_FLAGS" -Lbin/lib -l:nbt.so -o bin/test/nbt_helpers src/test/nbt_helpers.cpp
+wait
+
+echo "Running tests..."
+
+for test in $(ls bin/test); do
+    bin/test/$test
+done