diff --git a/test.lua b/test.lua
index 467e516..9173617 100644
--- a/test.lua
+++ b/test.lua
@@ -5,29 +5,54 @@ local t2 = modlib.table.deepcopy(t)
 assert(t2[t2] == t2)
 
 assert(modlib.table.equals_noncircular({[{}]={}}, {[{}]={}}))
-minetest.register_abm{
-    label = "get_liquid_corner_levels & get_liquid_direction test",
-    nodenames = {"default:water_flowing"},
-    interval = 1,
-    chance = 1,
-    action = function(pos, node)
-        assert(type(node) == "table")
-        for _, corner_level in pairs(modlib.minetest.get_liquid_corner_levels(pos, node)) do
-            minetest.add_particle{
-                pos = vector.subtract(vector.add(pos, corner_level), 0.5),
-                size = 2,
-                texture = "logo.png"
-            }
+local tests = {
+    liquid_dir = false,
+    liquid_raycast = false
+}
+if tests.liquid_dir then
+    minetest.register_abm{
+        label = "get_liquid_corner_levels & get_liquid_direction test",
+        nodenames = {"default:water_flowing"},
+        interval = 1,
+        chance = 1,
+        action = function(pos, node)
+            assert(type(node) == "table")
+            for _, corner_level in pairs(modlib.minetest.get_liquid_corner_levels(pos, node)) do
+                minetest.add_particle{
+                    pos = vector.add(pos, corner_level),
+                    size = 2,
+                    texture = "logo.png"
+                }
+            end
+            local direction = modlib.minetest.get_liquid_flow_direction(pos, node)
+            local start_pos = pos
+            start_pos.y = start_pos.y + 1
+            for i = 0, 20 do
+                minetest.add_particle{
+                    pos = vector.add(start_pos, vector.multiply(direction, i/20)),
+                    size = i/10,
+                    texture = "logo.png"
+                }
+            end
         end
-        local direction = modlib.minetest.get_liquid_flow_direction(pos, node)
-        local start_pos = pos
-        start_pos.y = start_pos.y + 1
-        for i = 0, 20 do
-            minetest.add_particle{
-                pos = vector.add(start_pos, vector.multiply(direction, i/20)),
-                size = i/10,
-                texture = "logo.png"
-            }
+    }
+
+end
+if tests.liquid_raycast then
+    minetest.register_globalstep(function()
+        for _, player in pairs(minetest.get_connected_players()) do
+            local eye_pos = vector.offset(player:get_pos(), 0, player:get_properties().eye_height, 0)
+            local raycast = modlib.minetest.raycast(eye_pos, vector.add(eye_pos, vector.multiply(player:get_look_dir(), 3)), false, true)
+            for pointed_thing in raycast do
+                if pointed_thing.type == "node" and minetest.registered_nodes[minetest.get_node(pointed_thing.under).name].liquidtype == "flowing" then
+                    minetest.add_particle{
+                        pos = vector.add(pointed_thing.intersection_point, vector.multiply(pointed_thing.intersection_normal, 0.1)),
+                        size = 0.5,
+                        texture = "object_marker_red.png",
+                        expirationtime = 3
+                    }
+                end
+            end
         end
-    end
-}
\ No newline at end of file
+    end)
+end
\ No newline at end of file