add list workspace

dda_python_terraform/terraform.py

@@ -437,6 +437,26 @@ class Terraform:
         global_opts = self._generate_default_general_options(False)
         return self.cmd(global_opts, "workspace", "show", **kwargs)
 
+    def list_workspace(self) -> List[str]:
+        """List of workspaces
+
+        :return: workspaces
+        :example:
+            >>> tf = Terraform()
+            >>> tf.list_workspace()
+            ['default', 'test']
+        """
+        global_opts = self._generate_default_general_options(False)
+        return list(
+            filter(
+                lambda workspace: len(workspace) > 0,
+                map(
+                    lambda workspace: workspace.strip('*').strip(),                    
+                    (self.cmd(global_opts, "workspace", "list")[1] or '').split()
+                )
+            )
+        )
+
     def _generate_default_args(self, dir_or_plan: Optional[str]) -> Sequence[str]:
         if (self.terraform_version < 1.0 and dir_or_plan):
             return [dir_or_plan]

test/test_terraform.py

@@ -529,3 +529,9 @@ class TestTerraform:
             in caplog.messages
         )
     """
+
+    def test_list_workspace(self):
+        tf = Terraform(working_dir=current_path)
+        workspaces = tf.list_workspace()
+        assert len(workspaces) > 0
+        assert 'default' in workspaces