diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..b87ab0f
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,15 @@
+name: test
+
+on: [push, pull_request]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: buckaroobanzay/mtt@main
+      with:
+        modname: playerfactions
+        git_dependencies: |
+          https://github.com/minetest-mods/areas.git
diff --git a/.luacheckrc b/.luacheckrc
index 0e33760..4e85a8f 100644
--- a/.luacheckrc
+++ b/.luacheckrc
@@ -4,5 +4,7 @@ globals = {
 
 read_globals = {
 	"minetest",
-	"table"
+	"dump", "dump2",
+	"table",
+	"mtt",
 }
diff --git a/init.lua b/init.lua
index 7607b53..1472aa8 100644
--- a/init.lua
+++ b/init.lua
@@ -1,6 +1,9 @@
 -- Translation support
 local S = minetest.get_translator("playerfactions")
 
+-- For integration testing
+local do_mtt = minetest.get_modpath("mtt") and mtt.enabled
+
 -- Data
 factions = {}
 -- This variable "version" can be used by other mods to check the compatibility of this mod
@@ -541,4 +544,8 @@ do
 	end
 end
 
+if do_mtt then
+	dofile(minetest.get_modpath(minetest.get_current_modname()) .. "/mtt.lua")
+end
+
 print("[playerfactions] loaded")
diff --git a/mod.conf b/mod.conf
index 464ac34..fcc0399 100644
--- a/mod.conf
+++ b/mod.conf
@@ -1,2 +1,3 @@
 name = playerfactions
 min_minetest_version = 5.9.0
+optional_depends = mtt
diff --git a/mtt.lua b/mtt.lua
new file mode 100644
index 0000000..db3e5aa
--- /dev/null
+++ b/mtt.lua
@@ -0,0 +1,111 @@
+local pd = function(...) print(dump(table.pack(...))) end
+
+mtt.register('join players', function(callback)
+pd(
+	mtt.join_player('Endor'),
+	mtt.join_player('Albert'),
+	mtt.join_player('Gandalf'),
+	mtt.join_player('HanSolo')
+)
+	callback()
+end)
+
+mtt.register('some players leave', function(callback)
+pd(
+	mtt.leave_player('Albert'),
+	mtt.leave_player('Gandalf')
+)
+	callback()
+end)
+
+mtt.register('make factions with backend', function(callback)
+	pd(
+	factions.register_faction('Endorian', 'Endor', 'eEe'),
+	factions.register_faction('Alberian', 'Albert', 'a'),
+	factions.register_faction('Gandalfian', 'Gandalf', 'GgG♥💩☺')
+	)
+	callback()
+end)
+
+mtt.register('basic db checks', function(callback)
+	local facts = factions.get_facts()
+	assert('table' == type(facts))
+	assert('table' == type(facts.Alberian))
+	assert('Albert' == facts.Alberian.owner)
+	assert('Alberian' == facts.Alberian.name)
+	assert('table' == type(facts.Alberian.members))
+	assert(true == facts.Alberian.members.Albert)
+	assert('8b2713b352c6fa2d22272a91612fba2f87d0c01885762a1522a7b4aec5592a80'
+		== facts.Endorian.password256)
+	assert('ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb'
+		== facts.Alberian.password256)
+	assert('3bfe911604e3fb079ad535a0c359a8457aea39d663bb4f21648842e3a4eaccf9'
+		== facts.Gandalfian.password256)
+	assert(nil == facts.Gandalfian.password)
+	callback()
+end)
+
+mtt.register('backend functions', function(callback)
+	-- player_is_in_faction
+	assert(false == factions.player_is_in_faction(
+		'notExistingFaction', 'notExistingPlayer'))
+	assert(false == factions.player_is_in_faction(
+		'notExistingFaction', 'Gandalf'))
+	assert(false == factions.player_is_in_faction(
+		'Gandalfian', 'notExistingPlayer'))
+	assert(nil == factions.player_is_in_faction(
+		'Gandalfian', 'Albert'))
+	assert(true == factions.player_is_in_faction(
+		'Gandalfian', 'Gandalf'))
+
+	-- get_player_faction (depricated)
+	assert(false == factions.get_player_faction('notExistingPlayer'))
+	assert(nil == factions.get_player_faction('HanSolo'))
+	assert('Alberian' == factions.get_player_faction('Albert'))
+
+	-- get_player_factions
+	assert(false == factions.get_player_factions(nil))
+	assert(false == factions.get_player_factions(42))
+	assert(false == factions.get_player_factions('notExistingPlayer'))
+	assert(false == factions.get_player_factions('HanSolo'))
+	assert('Alberian' == factions.get_player_factions('Albert')[1])
+
+	-- get_owned_factions
+	assert(false == factions.get_owned_factions(nil))
+	assert(false == factions.get_owned_factions(42))
+	assert(false == factions.get_owned_factions('notExistingPlayer'))
+	assert(false == factions.get_owned_factions('HanSolo'))
+	assert('Alberian' == factions.get_owned_factions('Albert')[1])
+
+	-- get_administered_factions
+	-- get_owner
+	-- chown
+	-- register_faction (partly tested in setup)
+	-- disband_faction (partly tested in setup)
+	-- hash_password (tested in basic db checks)
+	-- valid_password
+	-- get_password (depricated)
+	-- set_password
+	-- join_faction
+	-- leave_faction
+	
+	callback()
+end)
+
+mtt.register('intermediate db checks', function(callback)
+	callback()
+end)
+
+mtt.register('frontend functions', function(callback)
+	callback()
+end)
+
+mtt.register('final db checks', function(callback)
+	callback()
+end)
+
+mtt.register('foo bar', function(callback)
+	pd(factions.get_facts())
+	print('total success')
+	callback()
+end)