Fix taurus.yml not uploaded when there are no resource files

bzt/bza.py

@@ -559,19 +559,25 @@ def upload_files(self, taurus_config, resource_files):
         chunk_size = 50
         failed_files = []
 
-        for chunk_idx in range(0, len(resource_files), chunk_size):
-            chunk = resource_files[chunk_idx:chunk_idx + chunk_size]
+        if not resource_files:
             body = MultiPartForm()
-            if chunk_idx == 0:
-                body.add_file_as_string('script', 'taurus.yml', taurus_config)
-            for idx, rfile in enumerate(chunk):
-                body.add_file(f'files[{idx}]', rfile)
+            body.add_file_as_string('script', 'taurus.yml', taurus_config)
             hdr = {"Content-Type": str(body.get_content_type())}
-            try:
-                self._request(url, body.form_as_bytes(), headers=hdr)
-            except Exception as e:
-                self.log.error(f"Error uploading chunk {chunk_idx}: {e}")
-                failed_files.extend(chunk)
+            self._request(url, body.form_as_bytes(), headers=hdr)
+        else:
+            for chunk_idx in range(0, len(resource_files), chunk_size):
+                chunk = resource_files[chunk_idx:chunk_idx + chunk_size]
+                body = MultiPartForm()
+                if chunk_idx == 0:
+                    body.add_file_as_string('script', 'taurus.yml', taurus_config)
+                for idx, rfile in enumerate(chunk):
+                    body.add_file(f'files[{idx}]', rfile)
+                hdr = {"Content-Type": str(body.get_content_type())}
+                try:
+                    self._request(url, body.form_as_bytes(), headers=hdr)
+                except Exception as e:
+                    self.log.error(f"Error uploading chunk {chunk_idx}: {e}")
+                    failed_files.extend(chunk)
 
         if failed_files:
             error_msg = f"Failed to upload files: {failed_files}"

tests/unit/test_bza.py

@@ -356,4 +356,24 @@ def test_upload_files_logs_error_and_returns_failed_files(self, MockMultiPartFor
         test_obj.log.error.assert_any_call("Error uploading chunk 0: Upload error")
         test_obj.log.error.assert_any_call("Error uploading chunk 50: Upload error")
         self.assertIn("Failed to upload files:", error_msg)
-        self.assertTrue(all(f'file_{i}' in error_msg for i in range(60)))
+        self.assertTrue(all(f'file_{i}' in error_msg for i in range(60)))
+
+    @patch('bzt.bza.MultiPartForm')
+    def test_upload_files_uploads_taurus_yml_when_no_resource_files(self, MockMultiPartForm):
+        mock_form = MagicMock()
+        MockMultiPartForm.return_value = mock_form
+        mock_form.get_content_type.return_value = 'multipart/form-data'
+        mock_form.form_as_bytes.return_value = b'data'
+
+        test_obj = Test()
+        test_obj['id'] = '123'
+        test_obj.address = 'http://fake'
+        test_obj.log = MagicMock()
+        test_obj._request = MagicMock()
+
+        taurus_config = 'config'
+        resource_files = []
+        test_obj.upload_files(taurus_config, resource_files)
+
+        mock_form.add_file_as_string.assert_called_once_with('script', 'taurus.yml', 'config')
+        test_obj._request.assert_called_once()