add pg_ctl method to PostgresNode

Author: funbringer

testgres/testgres.py

@@ -698,6 +698,17 @@ def reload(self, params=[]):
 
 return self
 
+def pg_ctl(self, params):
+"""
+Invoke pg_ctl with params.
+
+Returns:
+Stdout + stderr of pg_ctl.
+"""
+
+_params = params + ["-D", self.data_dir, "-w"]
+return _execute_utility("pg_ctl", _params, self.utils_logname)
+
 def free_port(self):
 """
 Reclaim port owned by this node.

tests/test_simple.py

@@ -382,6 +382,13 @@ def test_reload(self):
 
 self.assertEqual(pid1, pid2)
 
+def test_pg_ctl(self):
+with get_new_node('node') as node:
+node.init().start()
+
+status = node.pg_ctl(['status'])
+self.assertTrue("server is running" in status)
+
 def test_ports_management(self):
 # check that no ports have been bound yet
 self.assertEqual(len(bound_ports), 0)