#1 PR pending https://github.com/lgi-devs/lgi/pull/342.patch
fix test with pango >= 1.56.2
--- a/tests/pango.lua
+++ b/tests/pango.lua
@@ -35,8 +35,7 @@ function pango.glyphstring()
       local offset = items[i].offset
       local length = items[i].length
       local analysis = items[i].analysis
-      local pgs = Pango.GlyphString()
-      Pango.shape(string.sub(s,1+offset), length, analysis, pgs)
+      pgs = Pango.shape(string.sub(s,1+offset), length, analysis)
       -- Pull out individual glyphs with pgs.glyphs
       local glyphs = pgs.glyphs
       check(type(glyphs) == 'table')

#2 failing progress.lua, see https://github.com/lgi-devs/lgi/issues/348
fixed by a fork https://github.com/vtrlx/LuaGObject/commit/cd261460f275ea07a4b47cc0c9d0113e17f98b11.patch
--- a/tests/progress.lua
+++ b/tests/progress.lua
@@ -11,6 +11,7 @@
 local lgi = require 'lgi'
 local Gio = lgi.Gio
 local GLib = lgi.GLib
+local GObject = lgi.GObject
 
 local check = testsuite.check
 
@@ -46,6 +47,7 @@ function progress.file_copy()
     end
 
     src:copy_async(dst, flags, priority, cancellable,
-		   progress_callback, finish_callback)
+		   GObject.Closure (progress_callback),
+		   GObject.Closure (finish_callback))
     loop:run()
 end