OsOperations::cwd() is corrected (#182)

* OsOperations::cwd() is corrected

This patch fixes the following problems:
 - It does not work on Windows
 - It always returns LOCAL path

Author: dmitry-lipetsk

testgres/operations/local_ops.py

@@ -152,6 +152,9 @@ def exec_command(self, cmd, wait_exit=False, verbose=False, expect_error=False,
     def environ(self, var_name):
         return os.environ.get(var_name)
 
+    def cwd(self):
+        return os.getcwd()
+
     def find_executable(self, executable):
         return find_executable(executable)
 

testgres/operations/os_ops.py

@@ -1,6 +1,5 @@
 import getpass
 import locale
-import sys
 
 try:
     import psycopg2 as pglib  # noqa: F401
@@ -39,11 +38,7 @@ def environ(self, var_name):
         raise NotImplementedError()
 
     def cwd(self):
-        if sys.platform == 'linux':
-            cmd = 'pwd'
-        elif sys.platform == 'win32':
-            cmd = 'cd'
-        return self.exec_command(cmd).decode().rstrip()
+        raise NotImplementedError()
 
     def find_executable(self, executable):
         raise NotImplementedError()

testgres/operations/remote_ops.py

@@ -138,6 +138,10 @@ def environ(self, var_name: str) -> str:
         cmd = "echo ${}".format(var_name)
         return self.exec_command(cmd, encoding=get_default_encoding()).strip()
 
+    def cwd(self):
+        cmd = 'pwd'
+        return self.exec_command(cmd, encoding=get_default_encoding()).rstrip()
+
     def find_executable(self, executable):
         search_paths = self.environ("PATH")
         if not search_paths:

tests/test_local.py

@@ -256,3 +256,20 @@ def test_isdir_false__file(self):
         response = self.operations.isdir(name)
 
         assert response is False
+
+    def test_cwd(self):
+        """
+        Test cwd.
+        """
+        v = self.operations.cwd()
+
+        assert v is not None
+        assert type(v) == str  # noqa: E721
+
+        expectedValue = os.getcwd()
+        assert expectedValue is not None
+        assert type(expectedValue) == str  # noqa: E721
+        assert expectedValue != ""  # research
+
+        # Comp result
+        assert v == expectedValue

tests/test_remote.py

@@ -392,3 +392,13 @@ def test_isdir_false__file(self):
         response = self.operations.isdir(name)
 
         assert response is False
+
+    def test_cwd(self):
+        """
+        Test cwd.
+        """
+        v = self.operations.cwd()
+
+        assert v is not None
+        assert type(v) == str  # noqa: E721
+        assert v != ""