From 6fe28a5cea332d2e8f8fbc9374a9f84e4c36e287 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Mon, 17 Feb 2025 13:51:20 +0300
Subject: [PATCH 1/2] [BUG FIX] A problem with socket directory is fixed

On non-Windows platform Postgres always looks for socket files in "/tmp" directory.
---
 testgres/node.py | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/testgres/node.py b/testgres/node.py
index 6f466ec9..b85a62f2 100644
--- a/testgres/node.py
+++ b/testgres/node.py
@@ -6,6 +6,7 @@
 import subprocess
 import threading
 import tempfile
+import platform
 from queue import Queue
 
 import time
@@ -1925,7 +1926,7 @@ def make_simple(
 
         # Define delayed propertyes
         if not ("unix_socket_directories" in options.keys()):
-            options["unix_socket_directories"] = __class__._gettempdir()
+            options["unix_socket_directories"] = __class__._gettempdir_for_socket()
 
         # Set config values
         node.set_auto_conf(options)
@@ -1938,6 +1939,33 @@ def make_simple(
 
         return node
 
+    def _gettempdir_for_socket():
+        platform_system_name = platform.system().lower()
+
+        if platform_system_name == "windows":
+            return __class__._gettempdir()
+
+        #
+        # [2025-02-17] Hot fix.
+        #
+        # Let's use hard coded path as Postgres likes.
+        #
+        # pg_config_manual.h:
+        #
+        # #ifndef WIN32
+        # #define DEFAULT_PGSOCKET_DIR  "/tmp"
+        # #else
+        # #define DEFAULT_PGSOCKET_DIR ""
+        # #endif
+        #
+        # On the altlinux-10 tempfile.gettempdir() may return
+        # the path to "private" temp directiry - "/temp/.private/<username>/"
+        #
+        # But Postgres want to find a socket file in "/tmp" (see above).
+        #
+
+        return "/tmp"
+
     def _gettempdir():
         v = tempfile.gettempdir()
 

From 89c8625252be857d8589141921aa185ac9db2d67 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Mon, 17 Feb 2025 14:02:24 +0300
Subject: [PATCH 2/2] A problem with
 tests.test_simple.TestgresTests.test_simple_with_bin_dir is fixed

testgres generates the exception testgres.exceptions.ExecUtilException, but test traps the exception FileNotFoundError.

Error message is:
 Utility exited with non-zero code. Error: `bash: line 1: wrong/path/postgres: No such file or directory`
 Command: ('wrong/path/postgres --version',)
---
 tests/test_simple.py | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/tests/test_simple.py b/tests/test_simple.py
index 8148d05d..4e6fb573 100644
--- a/tests/test_simple.py
+++ b/tests/test_simple.py
@@ -1244,13 +1244,19 @@ def test_simple_with_bin_dir(self):
         correct_bin_dir = app.make_simple(base_dir=node.base_dir, bin_dir=bin_dir)
         correct_bin_dir.slow_start()
         correct_bin_dir.safe_psql("SELECT 1;")
+        correct_bin_dir.stop()
+
+        while True:
+            try:
+                app.make_simple(base_dir=node.base_dir, bin_dir="wrong/path")
+            except FileNotFoundError:
+                break  # Expected error
+            except ExecUtilException:
+                break  # Expected error
 
-        try:
-            wrong_bin_dir = app.make_empty(base_dir=node.base_dir, bin_dir="wrong/path")
-            wrong_bin_dir.slow_start()
             raise RuntimeError("Error was expected.")  # We should not reach this
-        except FileNotFoundError:
-            pass  # Expected error
+
+        return
 
     def test_set_auto_conf(self):
         # elements contain [property id, value, storage value]