diff --git a/CMakeLists.txt b/CMakeLists.txt
index 17a5b00..d7dea10 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -91,13 +91,13 @@ add_custom_target( tests
 	COMMAND echo "Note you are expected to:"
 	COMMAND echo "  * have lua-posix installed"
 	COMMAND echo "  * have a passwordless ssh access to localhost"
-	COMMAND tests/schedule.lua
-	COMMAND tests/l4rsyncdata.lua
-	COMMAND tests/exclude-rsync.lua
-	COMMAND tests/exclude-rsyncssh.lua
-	COMMAND tests/churn-rsync.lua
-	COMMAND tests/churn-rsyncssh.lua
-	COMMAND tests/churn-direct.lua
+	COMMAND ${LUA_EXECUTABLE} tests/schedule.lua
+	COMMAND ${LUA_EXECUTABLE} tests/l4rsyncdata.lua
+	COMMAND ${LUA_EXECUTABLE} tests/exclude-rsync.lua
+	COMMAND ${LUA_EXECUTABLE} tests/exclude-rsyncssh.lua
+	COMMAND ${LUA_EXECUTABLE} tests/churn-rsync.lua
+	COMMAND ${LUA_EXECUTABLE} tests/churn-rsyncssh.lua
+	COMMAND ${LUA_EXECUTABLE} tests/churn-direct.lua
 	COMMAND echo "Finished all successfull!"
 )
 
diff --git a/ChangeLog b/ChangeLog
index c29a0f9..4b0dccc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,14 +1,14 @@
 2018-??-??: 2.2.3
 	enhaencement: supporting includes with new filter and filterFrom options
-	change: needing at least Lua 5.2 (was 5.1)
+	change: needing now at least Lua 5.2 (Lua 5.1 no longer supported, Lua5.3 supported)
 	change: if the target/targetdir ands with a ':' do not append
 			a trailing '/' to it, since that would change it from homedir to rootdir!
 	add: example for Amazon S3 Bucket (Daniel Miranda)
 	fix: setting stdout/stderr to linebuffer mode.
 	fix: Lua5.3 compatiblity, using load() instead of loadstring()
-	     Lua5.1 support was thus dropped
 	fix: cmake lua detection, will resort to "lua" and "luac" binaries only if
 	     more specific suffixes (e.g. luac5.3) are not available
+	fix: test suit, Lua5.3 compatibility (table.unpack)
 
 2017-02-16: 2.2.2
 	fix: checkgauge 'insist'
diff --git a/tests/churn-direct.lua b/tests/churn-direct.lua
old mode 100755
new mode 100644
index 0a28b8f..c01744c
--- a/tests/churn-direct.lua
+++ b/tests/churn-direct.lua
@@ -21,7 +21,7 @@ local pid = spawn(
 	'./lsyncd',
 	'-nodaemon',
 	'-direct', srcdir, trgdir,
-	unpack( logs )
+	table.unpack( logs )
 )
 
 cwriteln( 'waiting for Lsyncd to startup' )
diff --git a/tests/churn-rsync.lua b/tests/churn-rsync.lua
old mode 100755
new mode 100644
index dfa0614..f7d3025
--- a/tests/churn-rsync.lua
+++ b/tests/churn-rsync.lua
@@ -20,7 +20,7 @@ local pid = spawn(
 	'-nodaemon',
 	'-delay', '5',
 	'-rsync', srcdir, trgdir,
-	unpack( logs )
+	table.unpack( logs )
 )
 
 cwriteln( 'waiting for Lsyncd to startup' )
diff --git a/tests/churn-rsyncssh.lua b/tests/churn-rsyncssh.lua
old mode 100755
new mode 100644
index ddb49f8..2633a42
--- a/tests/churn-rsyncssh.lua
+++ b/tests/churn-rsyncssh.lua
@@ -29,7 +29,7 @@ local pid = spawn(
 	srcdir,
 	'localhost',
 	trgdir,
-	unpack(logs)
+	table.unpack(logs)
 )
 
 cwriteln( 'waiting for Lsyncd to startup' )
diff --git a/tests/exclude-rsync.lua b/tests/exclude-rsync.lua
old mode 100755
new mode 100644
diff --git a/tests/exclude-rsyncssh.lua b/tests/exclude-rsyncssh.lua
old mode 100755
new mode 100644
index 45388b5..f79703f
--- a/tests/exclude-rsyncssh.lua
+++ b/tests/exclude-rsyncssh.lua
@@ -88,7 +88,7 @@ end
 cwriteln( 'testing startup excludes' )
 writefiles( )
 cwriteln( 'starting Lsyncd' )
-local pid = spawn( './lsyncd', cfgfile, unpack( log ) )
+local pid = spawn( './lsyncd', cfgfile, table.unpack( log ) )
 cwriteln( 'waiting for Lsyncd to start' )
 posix.sleep( 10 )
 cwriteln( 'testing excludes after startup' )
diff --git a/tests/l4rsyncdata.lua b/tests/l4rsyncdata.lua
old mode 100755
new mode 100644
index b45db1f..86586c0
--- a/tests/l4rsyncdata.lua
+++ b/tests/l4rsyncdata.lua
@@ -28,7 +28,7 @@ local pid =
 		'-nodaemon',
 		'-delay', '5',
 		"-rsync", srcdir, trgdir,
-		unpack( logs )
+		table.unpack( logs )
 	)
 
 cwriteln( 'waiting for lsyncd to start' )
diff --git a/tests/schedule.lua b/tests/schedule.lua
old mode 100755
new mode 100644
index 6a638f8..7201e8a
--- a/tests/schedule.lua
+++ b/tests/schedule.lua
@@ -1,10 +1,10 @@
 #!/usr/bin/lua
-require("posix")
-dofile("tests/testlib.lua")
+require( 'posix' )
+dofile( 'tests/testlib.lua' )
 
-cwriteln("****************************************************************")
-cwriteln(" Testing Lsyncd scheduler                                       ")
-cwriteln("****************************************************************")
+cwriteln( '****************************************************************' )
+cwriteln( ' Testing Lsyncd scheduler                                       ' )
+cwriteln( '****************************************************************' )
 
 local tdir, srcdir, trgdir = mktemps()
 local logfile = tdir .. "log"
@@ -47,30 +47,36 @@ sync {ccircuit, source ="]]..srcdir..[[", target = "]]..trgdir..[["}
 
 
 -- test if the filename exists, fails if this is different to expect
-local function testfile(filename)
+local function testfile
+(
+	filename
+)
 	local stat, err = posix.stat(filename)
-	if not stat then
-		cwriteln("failure: ",filename," missing")
-		os.exit(1)
+	
+	if not stat
+	then
+		cwriteln( 'failure: ', filename, ' missing' )
+		os.exit( 1 )
 	end
 end
 
-cwriteln("starting Lsyncd")
-local pid = spawn("./lsyncd", cfgfile, unpack(logs))
-cwriteln("waiting for Lsyncd to do a few cycles")
-posix.sleep(30)
-cwriteln("look if every circle got a chance to run")
-testfile(srcdir.."a")
-testfile(srcdir.."b")
-testfile(srcdir.."c")
-cwriteln("killing started Lsyncd")
-posix.kill(pid)
-local _, exitmsg, lexitcode = posix.wait(lpid)
-cwriteln("Exitcode of Lsyncd = ", exitmsg, " ", lexitcode)
+cwriteln( 'starting Lsyncd' )
+local pid = spawn( './lsyncd', cfgfile, table.unpack( logs ) )
+cwriteln( 'waiting for Lsyncd to do a few cycles' )
+posix.sleep( 30 )
+cwriteln( 'look if every circle got a chance to run' )
+testfile( srcdir..'a' )
+testfile( srcdir..'b' )
+testfile( srcdir..'c' )
+cwriteln( 'killing started Lsyncd' )
+posix.kill( pid )
+local _, exitmsg, lexitcode = posix.wait( lpid )
+cwriteln( 'Exitcode of Lsyncd = ', exitmsg, ' ', lexitcode)
 posix.sleep(1);
 
-if lexitcode == 143 then
-	cwriteln("OK")
+if lexitcode == 143
+then
+	cwriteln( 'OK' )
 	os.exit( 0 )
 else
 	os.exit( 1 )
diff --git a/tests/testlib.lua b/tests/testlib.lua
index 7952a7a..1b386e2 100644
--- a/tests/testlib.lua
+++ b/tests/testlib.lua
@@ -58,17 +58,11 @@ end
 function mktemps
 ( )
 	local tdir = mktempd() .. '/'
-
 	cwriteln( 'using ', tdir, ' as test root' )
-
 	local srcdir = tdir..'src/'
-
 	local trgdir = tdir..'trg/'
-
 	posix.mkdir( srcdir )
-
 	posix.mkdir( trgdir )
-
 	return tdir, srcdir, trgdir
 end
 
@@ -90,9 +84,7 @@ function writefile
 	end
 
 	f:write( text )
-
 	f:write( '\n' )
-
 	f:close( )
 
 	return true
@@ -143,11 +135,8 @@ function churn
 )
 	-- all dirs created, indexed by integer and path
 	root = { name = '' }
-
 	alldirs = { root }
-
 	dirsWithFileI = { }
-
 	dirsWithFileD = { }
 
 	--