# Copyright 2023 (c) Anna Schumaker.
"""Tests the `xfstestsdb rename` command."""
import errno
import io
import unittest
import unittest.mock
import xfstestsdb.rename


class TestRename(unittest.TestCase):
    """Tests the `xfstestsdb rename` command."""

    def setUp(self):
        """Set up common variables."""
        self.xfstestsdb = xfstestsdb.Command()
        self.rename = self.xfstestsdb.commands["rename"]

    def test_init(self):
        """Check that the rename command was set up properly."""
        self.assertIsInstance(self.rename, xfstestsdb.commands.Command)
        self.assertIsInstance(self.rename, xfstestsdb.rename.Command)
        self.assertEqual(self.xfstestsdb.subparser.choices["rename"],
                         self.rename.parser)

    @unittest.mock.patch("sys.stdout", new_callable=io.StringIO)
    def test_rename(self, mock_stdout: io.StringIO):
        """Test the `xfstestsdb rename` command with valid input."""
        self.xfstestsdb.run(["new", "/dev/test"])
        self.xfstestsdb.run(["rename", "1", "/dev/new/name"])
        self.assertRegex(mock_stdout.getvalue(),
                         "renamed run #1 device '/dev/test' "
                         "to '/dev/new/name'")

        cur = self.xfstestsdb.sql("SELECT device FROM xfstests_runs "
                                  "WHERE rowid=1")
        self.assertEqual(cur.fetchone()["device"], "/dev/new/name")

    @unittest.mock.patch("sys.stdout", new_callable=io.StringIO)
    def test_rename_same(self, mock_stdout: io.StringIO):
        """Test the `xfstestsdb rename` command with the same name."""
        self.xfstestsdb.run(["new", "/dev/test"])
        self.xfstestsdb.run(["rename", "1", "/dev/test"])
        self.assertNotRegex(mock_stdout.getvalue(),
                            "renamed run #1 device '/dev/test' to '/dev/test'")

    @unittest.mock.patch("sys.stderr", new_callable=io.StringIO)
    def test_rename_error(self, mock_stderr: io.StringIO):
        """Test the `xfstestsdb rename` command with invalid input."""
        with self.assertRaises(SystemExit):
            self.xfstestsdb.run(["rename"])
        self.assertRegex(mock_stderr.getvalue(),
                         "error: the following arguments are required: runid")

        with self.assertRaises(SystemExit):
            self.xfstestsdb.run(["rename", "3"])
        self.assertRegex(mock_stderr.getvalue(),
                         "error: the following arguments are required: name")

    @unittest.mock.patch("sys.stderr", new_callable=io.StringIO)
    def test_rename_enoent(self, mock_stderr: io.StringIO):
        """Test the `xfstestsdb rename` command with an invalid runid."""
        with self.assertRaises(SystemExit) as sys_exit:
            self.xfstestsdb.run(["rename", "2", "/dev/new/name"])

        self.assertEqual(sys_exit.exception.code, errno.ENOENT)
        self.assertRegex(mock_stderr.getvalue(),
                         "error: run #2 does not exist")