get lua version from luarocks itself

tests/languages/lua_test.py

@@ -1,55 +0,0 @@
-import os
-from unittest import mock
-
-import pytest
-
-import pre_commit.constants as C
-from pre_commit.languages import lua
-from testing.util import xfailif_windows
-
-
-@pytest.mark.parametrize(
-    'lua_name', ('lua', 'lua5.4', 'lua-5.4', 'lua5.4.exe'),
-)
-def test_find_lua(tmp_path, lua_name):
-    """The language support can find common lua executable names."""
-    lua_file = tmp_path / lua_name
-    lua_file.touch(0o555)
-    with mock.patch.dict(os.environ, {'PATH': str(tmp_path)}):
-        lua_executable = lua._find_lua(C.DEFAULT)
-    assert lua_name in lua_executable
-
-
-def test_find_lua_language_version(tmp_path):
-    """Language discovery can find a specific version."""
-    lua_file = tmp_path / 'lua5.99'
-    lua_file.touch(0o555)
-    with mock.patch.dict(os.environ, {'PATH': str(tmp_path)}):
-        lua_executable = lua._find_lua('5.99')
-    assert 'lua5.99' in lua_executable
-
-
-@pytest.mark.parametrize(
-    ('invalid', 'mode'),
-    (
-        ('foobar', 0o555),
-        ('luac', 0o555),
-        # Windows doesn't respect the executable checking.
-        pytest.param('lua5.4', 0o444, marks=xfailif_windows),
-    ),
-)
-def test_find_lua_fail(tmp_path, invalid, mode):
-    """No lua executable on the system will fail."""
-    non_lua_file = tmp_path / invalid
-    non_lua_file.touch(mode)
-    with mock.patch.dict(os.environ, {'PATH': str(tmp_path)}):
-        with pytest.raises(ValueError):
-            lua._find_lua(C.DEFAULT)
-
-
-@mock.patch.object(lua, 'cmd_output')
-def test_bad_package_path(mock_cmd_output):
-    """A package path missing path info returns an unknown version."""
-    mock_cmd_output.return_value = (0, '', '')
-    with pytest.raises(ValueError):
-        lua._get_lua_path_version('lua')