tests: windows support, eschew using node.restart()

tests/auth_test.py

@@ -126,7 +126,8 @@ class SimpleAuthTest(ProbackupTest, unittest.TestCase):
             "test1", "create table t1 as select generate_series(0,100)")
 
         node.append_conf("postgresql.auto.conf", "ptrack_enable = 'on'")
-        node.restart()
+        node.stop()
+        node.slow_start()
 
         try:
             self.backup_node(

tests/ptrack.py

@@ -89,11 +89,13 @@ class PtrackTest(ProbackupTest, unittest.TestCase):
 
         # DISABLE PTRACK
         node.safe_psql('postgres', "alter system set ptrack_enable to off")
-        node.restart()
+        node.stop()
+        node.slow_start()
 
         # ENABLE PTRACK
         node.safe_psql('postgres', "alter system set ptrack_enable to on")
-        node.restart()
+        node.stop()
+        node.slow_start()
 
         # PTRACK BACKUP
         try:

tests/replica.py

@@ -403,7 +403,8 @@ class ReplicaTest(ProbackupTest, unittest.TestCase):
         replica.append_conf(
             'recovery.conf', "recovery_min_apply_delay = '300s'")
 
-        replica.restart()
+        replica.stop()
+        replica.slow_start()
 
         master.pgbench_init(scale=10)
 

tests/restore_test.py

@@ -5,7 +5,6 @@ import subprocess
 from datetime import datetime
 import sys
 import time
-import shutil
 
 
 module_name = 'restore'

tests/validate_test.py

@@ -1528,7 +1528,8 @@ class ValidateTest(ProbackupTest, unittest.TestCase):
 
         node2.append_conf(
             'postgresql.auto.conf', 'archive_mode = on')
-        node2.restart()
+        node2.stop()
+        node2.slow_start()
 
         timeline_node1 = node1.get_control_data()["Latest checkpoint's TimeLineID"]
         timeline_node2 = node2.get_control_data()["Latest checkpoint's TimeLineID"]