cli/docs/tests: harden config edit invocation and add YAML empty-export coverage

cli/aitbc_cli/commands/config.py

@@ -2,6 +2,8 @@
 
 import click
 import os
+import shlex
+import subprocess
 import yaml
 import json
 from pathlib import Path
@@ -128,8 +130,9 @@ def edit(ctx, global_config: bool):
             yaml.dump(config_data, f, default_flow_style=False)
 
     # Open in editor
-    editor = os.getenv('EDITOR', 'nano')
-    os.system(f"{editor} {config_file}")
+    editor = os.getenv('EDITOR', 'nano').strip() or 'nano'
+    editor_cmd = shlex.split(editor)
+    subprocess.run([*editor_cmd, str(config_file)], check=False)
 
 
 @config.command()

docs/8_development/1_overview.md

@@ -153,7 +153,7 @@ Choose a tutorial based on your interest:
 
 ### Community
 - [Discord](https://discord.gg/aitbc)
-- [GitHub Discussions](https://github.com/aitbc/discussions)
+- [GitHub Discussions](https://github.com/oib/AITBC/discussions)
 - [Stack Overflow](https://stackoverflow.com/questions/tagged/aitbc)
 
 ## Development Workflow

tests/cli/test_config.py

@@ -145,8 +145,8 @@ def test_path_global(self, runner, mock_config):
         assert result.exit_code == 0
         assert '.config/aitbc/config.yaml' in result.output
 
-    @patch('os.system')
-    def test_edit_command(self, mock_system, runner, mock_config, tmp_path):
+    @patch('aitbc_cli.commands.config.subprocess.run')
+    def test_edit_command(self, mock_run, runner, mock_config, tmp_path):
         """Test editing configuration file"""
 
         # Change to the tmp_path directory
@@ -160,9 +160,10 @@ def test_edit_command(self, mock_system, runner, mock_config, tmp_path):
 
             assert result.exit_code == 0
             # Verify editor was called
-            mock_system.assert_called_once()
-            assert 'nano' in mock_system.call_args[0][0]
-            assert str(actual_config_file) in mock_system.call_args[0][0]
+            mock_run.assert_called_once()
+            args = mock_run.call_args[0][0]
+            assert args[0] == 'nano'
+            assert str(actual_config_file) in args
 
     def test_reset_config_cancelled(self, runner, mock_config, temp_config_file):
         """Test config reset cancelled by user"""
@@ -267,6 +268,22 @@ def test_export_empty_yaml(self, runner, mock_config, tmp_path):
             data = json.loads(result.output)
             assert data == {}
 
+
+    def test_export_empty_yaml_yaml_format(self, runner, mock_config, tmp_path):
+        """Test exporting an empty YAML config file as YAML"""
+        with runner.isolated_filesystem(temp_dir=tmp_path):
+            local_config = Path.cwd() / ".aitbc.yaml"
+            local_config.write_text("")
+
+            result = runner.invoke(config, [
+                'export',
+                '--format', 'yaml'
+            ], obj={'config': mock_config, 'output_format': 'table'})
+
+            assert result.exit_code == 0
+            data = yaml.safe_load(result.output)
+            assert data == {}
+
     def test_export_no_config(self, runner, mock_config):
         """Test export when no config file exists"""
         with runner.isolated_filesystem():