From: Justin Pryzby <pryzbyj@telsasoft.com>
Date: Tue, 17 Mar 2020 13:16:24 -0500
Subject: [PATCH v19 03/10] Add tests on pg_ls_dir before changing it

---
 src/test/regress/expected/misc_functions.out | 18 ++++++++++++++++++
 src/test/regress/sql/misc_functions.sql      |  5 +++++
 2 files changed, 23 insertions(+)

diff --git a/src/test/regress/expected/misc_functions.out b/src/test/regress/expected/misc_functions.out
index d3acb98d04..2e87c548eb 100644
--- a/src/test/regress/expected/misc_functions.out
+++ b/src/test/regress/expected/misc_functions.out
@@ -201,6 +201,24 @@ select count(*) > 0 from
  t
 (1 row)
 
+select * from (select pg_ls_dir('.', false, true) as name) as ls where ls.name='.'; -- include_dot_dirs=true
+ name 
+------
+ .
+(1 row)
+
+select * from (select pg_ls_dir('.', false, false) as name) as ls where ls.name='.'; -- include_dot_dirs=false
+ name 
+------
+(0 rows)
+
+select pg_ls_dir('does not exist', true, false); -- ok with missingok=true
+ pg_ls_dir 
+-----------
+(0 rows)
+
+select pg_ls_dir('does not exist'); -- fails with missingok=false
+ERROR:  could not open directory "does not exist": No such file or directory
 --
 -- Test adding a support function to a subject function
 --
diff --git a/src/test/regress/sql/misc_functions.sql b/src/test/regress/sql/misc_functions.sql
index 094e8f8296..f6857ad177 100644
--- a/src/test/regress/sql/misc_functions.sql
+++ b/src/test/regress/sql/misc_functions.sql
@@ -60,6 +60,11 @@ select count(*) > 0 from
    where spcname = 'pg_default') pts
   join pg_database db on pts.pts = db.oid;
 
+select * from (select pg_ls_dir('.', false, true) as name) as ls where ls.name='.'; -- include_dot_dirs=true
+select * from (select pg_ls_dir('.', false, false) as name) as ls where ls.name='.'; -- include_dot_dirs=false
+select pg_ls_dir('does not exist', true, false); -- ok with missingok=true
+select pg_ls_dir('does not exist'); -- fails with missingok=false
+
 --
 -- Test adding a support function to a subject function
 --
-- 
2.17.0


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