test: add CLI tests for delete command

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/test_delete.py

@@ -1,6 +1,10 @@
 from datetime import datetime, timezone
-from unittest.mock import MagicMock
+from unittest.mock import MagicMock, patch
 
+import pytest
+from click.testing import CliRunner
+
+from order_bak.cli import main
 from order_bak.csv_utils import write_csv
 from order_bak.delete import delete_orders
 
@@ -23,6 +27,8 @@ def _make_entity(pk, rk):
     }
 
 
+# --- delete_orders unit tests ---
+
 def test_delete_groups_by_partition_and_batches(tmp_path):
     entities = []
     for i in range(3):
@@ -65,3 +71,75 @@ def test_delete_respects_batch_size(tmp_path):
 
     assert deleted_count == 5
     assert mock_table.submit_transaction.call_count == 3  # 2+2+1
+
+
+# --- delete CLI command tests ---
+
+@pytest.fixture
+def runner():
+    return CliRunner()
+
+
+@pytest.fixture
+def config_file(tmp_path):
+    cfg = tmp_path / "config.toml"
+    cfg.write_text('[azure]\nconnection_string = "UseDevelopmentStorage=true"\n')
+    return cfg
+
+
+def test_delete_command_no_backups(runner, config_file, tmp_path, monkeypatch):
+    monkeypatch.chdir(tmp_path)
+    (tmp_path / "backups").mkdir()
+
+    result = runner.invoke(main, ["--config", str(config_file), "delete"])
+
+    assert result.exit_code == 1
+    assert "No backup files found" in result.output
+
+
+def test_delete_command_aborts(runner, config_file, tmp_path, monkeypatch):
+    monkeypatch.chdir(tmp_path)
+    backup_dir = tmp_path / "backups"
+    backup_dir.mkdir()
+    write_csv(backup_dir / "2025-01-01.csv", [_make_entity("u1", "o1")])
+
+    mock_table = MagicMock()
+    with patch("azure.data.tables.TableClient.from_connection_string", return_value=mock_table):
+        result = runner.invoke(main, ["--config", str(config_file), "delete"], input="n\n")
+
+    assert "Aborted" in result.output
+    mock_table.submit_transaction.assert_not_called()
+
+
+def test_delete_command_single_file(runner, config_file, tmp_path, monkeypatch):
+    monkeypatch.chdir(tmp_path)
+    backup_dir = tmp_path / "backups"
+    backup_dir.mkdir()
+    write_csv(backup_dir / "2025-01-01.csv", [_make_entity("u1", f"o{i}") for i in range(3)])
+
+    mock_table = MagicMock()
+    with patch("azure.data.tables.TableClient.from_connection_string", return_value=mock_table):
+        result = runner.invoke(main, ["--config", str(config_file), "delete"], input="y\n")
+
+    assert result.exit_code == 0
+    assert "3 orders" in result.output
+    assert "1 file" in result.output
+    assert mock_table.submit_transaction.called
+
+
+def test_delete_command_multiple_files(runner, config_file, tmp_path, monkeypatch):
+    monkeypatch.chdir(tmp_path)
+    backup_dir = tmp_path / "backups"
+    backup_dir.mkdir()
+    write_csv(backup_dir / "2025-01-01.csv", [_make_entity("u1", f"o{i}") for i in range(2)])
+    write_csv(backup_dir / "2025-01-02.csv", [_make_entity("u2", f"o{i}") for i in range(3)])
+
+    mock_table = MagicMock()
+    with patch("azure.data.tables.TableClient.from_connection_string", return_value=mock_table):
+        result = runner.invoke(main, ["--config", str(config_file), "delete"], input="y\n")
+
+    assert result.exit_code == 0
+    assert "5 orders" in result.output
+    assert "2 file" in result.output
+    # u1 (2 entities, batch 100) → 1 call; u2 (3 entities, batch 100) → 1 call
+    assert mock_table.submit_transaction.call_count == 2