Fix #2490 - Kill other processes when the test script is interrupted

run-tests

@@ -140,6 +140,30 @@ trap '{ rm -rf "$output_dir"; }' EXIT
 file_number=0
 pid_list=''
 
+# Used for killing tests when you kill the script.
+cancel_tests() {
+    set +e
+
+    if [ -n "$pid_list" ]; then
+        for pid in $pid_list; do
+            kill "$pid"
+            wait "$pid"
+        done
+    fi
+
+    # shellcheck disable=SC2046
+    docker kill $(docker ps -a -q --filter ancestor="$image" --format='{{.ID}}') &> /dev/null
+
+    if [ -d "$output_dir" ]; then
+        rm -rf "$output_dir"
+    fi
+
+    echo
+    exit 1
+}
+
+trap cancel_tests INT TERM
+
 for vim in $(docker run --rm "$DOCKER_RUN_IMAGE" ls /vim-build/bin | grep '^neovim\|^vim' ); do
     if ( [[ $vim =~ ^vim-v8.0 ]] && ((run_vim_80_tests)) ) \
     || ( [[ $vim =~ ^vim-v8.1 ]] && ((run_vim_81_tests)) ) \