Determine test_path if not specified

Author: asavchkov

testgres/node.py

@@ -1672,9 +1672,17 @@ def _get_bin_path(self, filename):
 
 class NodeApp:
 
-    def __init__(self, test_path, nodes_to_cleanup, os_ops=LocalOperations()):
-        self.test_path = test_path
-        self.nodes_to_cleanup = nodes_to_cleanup
+    def __init__(self, test_path=None, nodes_to_cleanup=None, os_ops=LocalOperations()):
+        print('ALEXEY in nodeapp init', test_path)
+        if test_path:
+            if os.path.isabs(test_path):
+                self.test_path = test_path
+            else:
+                self.test_path = os.path.join(os_ops.cwd(), test_path)
+        else:
+            self.test_path = os_ops.cwd()
+        print('ALEXEY in nodeapp resulting test path', self.test_path)
+        self.nodes_to_cleanup = nodes_to_cleanup if nodes_to_cleanup else []
         self.os_ops = os_ops
 
     def make_empty(

testgres/operations/os_ops.py

@@ -1,5 +1,6 @@
 import getpass
 import locale
+import sys
 
 try:
     import psycopg2 as pglib  # noqa: F401
@@ -35,6 +36,11 @@ def exec_command(self, cmd, **kwargs):
     def environ(self, var_name):
         raise NotImplementedError()
 
+    def cwd(self):
+        if sys.platform == 'win32':
+            raise NotImplementedError()
+        return self.exec_command('pwd').decode().rstrip()
+
     def find_executable(self, executable):
         raise NotImplementedError()