diff --git a/tests/modules/pass_region.aug b/tests/modules/pass_region.aug
deleted file mode 100644
index fafdbf4eb..000000000
--- a/tests/modules/pass_region.aug
+++ /dev/null
@@ -1,64 +0,0 @@
-module Pass_Region =
-
-(* Some basic lenses that we will combine in a number of ways *)
-let eol = del "\n" "\n"
-let indent = del /[ _]*/ "_"  (* Create spaces as '_' *)
-let entry = key /a/ . del "=" "=" . store /[sx]*/
-
-(* indent outside the subtree for entry *)
-let outside = indent . [ entry ] . eol
-(* indent inside the subtree for entry *)
-let inside = [ indent . entry ] . eol
-
-(* The test text is set up so that the number of 's' indicate how many
-   spaces of indent we had *)
-let text = "a=\n a=s\n  a=ss\n"
-
-(* All these lenses produce the exact same tree, with or without < .. > *)
-test (outside*) get text =
-  { "a" = "" }
-  { "a" = "s" }
-  { "a" = "ss" }
-
-test (inside*) get text =
-  { "a" = "" }
-  { "a" = "s" }
-  { "a" = "ss" }
-
-test (< outside >*) get text =
-  { "a" = "" }
-  { "a" = "s" }
-  { "a" = "ss" }
-
-test (< inside >*) get text =
-  { "a" = "" }
-  { "a" = "s" }
-  { "a" = "ss" }
-
-(* They behave slightly differently when we insert in the middle,
-   depending on whether we use < .. > or not *)
-let text_new_middle = "a=\n_a=sx\n a=s\n  a=ss\n"
-let text_new_end = "a=\n a=sx\n  a=s\n_a=ss\n"
-
-test (outside*) put text after insa "a" "/a[1]"; set "/a[2]" "sx" =
-  text_new_end
-
-test (inside*) put text after insa "a" "/a[1]"; set "/a[2]" "sx" =
-  text_new_end
-
-test (< outside >*) put text after insa "a" "/a[1]"; set "/a[2]" "sx" =
-  text_new_middle
-
-test (< inside >*) put text after insa "a" "/a[1]"; set "/a[2]" "sx" =
-  text_new_middle
-
-(* Delete an entry in the middle *)
-let text_rm_shift = "a=\n a=ss\n"
-let text_rm_noshift = "a=\n  a=ss\n"
-test (outside*) put text after rm "/a[2]" = text_rm_shift
-
-test (inside*) put text after  rm "/a[2]" = text_rm_shift
-
-test (< outside >*) put text after rm "/a[2]" = text_rm_noshift
-
-test (< inside >*) put text after rm "/a[2]" = text_rm_noshift