数据库发生错误。

""" Test suite for the code in msilib """
import unittest
from test_support import TESTFN, import_module, run_unittest, unlink
msilib = import_module('msilib')
import msilib.schema


def init_database():
    path = TESTFN + '.msi'
    db = msilib.init_database(
        path,
        msilib.schema,
        'Python Tests',
        'product_code',
        '1.0',
        'PSF',
    )
    return db, path


class MsiDatabaseTestCase(unittest.TestCase):

    def test_summaryinfo_getproperty_issue1104(self):
        db, db_path = init_database()
        try:
            sum_info = db.GetSummaryInformation(99)
            title = sum_info.GetProperty(msilib.PID_TITLE)
            self.assertEqual(title, b"Installation Database")

            sum_info.SetProperty(msilib.PID_TITLE, "a" * 999)
            title = sum_info.GetProperty(msilib.PID_TITLE)
            self.assertEqual(title, b"a" * 999)

            sum_info.SetProperty(msilib.PID_TITLE, "a" * 1000)
            title = sum_info.GetProperty(msilib.PID_TITLE)
            self.assertEqual(title, b"a" * 1000)

            sum_info.SetProperty(msilib.PID_TITLE, "a" * 1001)
            title = sum_info.GetProperty(msilib.PID_TITLE)
            self.assertEqual(title, b"a" * 1001)
        finally:
            db = None
            sum_info = None
            unlink(db_path)

    def test_directory_start_component_keyfile(self):
        db, db_path = init_database()
        self.addCleanup(msilib._directories.clear)
        feature = msilib.Feature(db, 0, 'Feature', 'A feature', 'Python')
        cab = msilib.CAB('CAB')
        dir = msilib.Directory(db, cab, None, TESTFN, 'TARGETDIR',
                               'SourceDir', 0)
        dir.start_component(None, feature, None, 'keyfile')


class Test_make_id(unittest.TestCase):
    #http://msdn.microsoft.com/en-us/library/aa369212(v=vs.85).aspx
    """The Identifier data type is a text string. Identifiers may contain the
    ASCII characters A-Z (a-z), digits, underscores (_), or periods (.).
    However, every identifier must begin with either a letter or an
    underscore.
    """

    def test_is_no_change_required(self):
        self.assertEqual(
            msilib.make_id("short"), "short")
        self.assertEqual(
            msilib.make_id("nochangerequired"), "nochangerequired")
        self.assertEqual(
            msilib.make_id("one.dot"), "one.dot")
        self.assertEqual(
            msilib.make_id("_"), "_")
        self.assertEqual(
            msilib.make_id("a"), "a")
        #self.assertEqual(
        #    msilib.make_id(""), "")

    def test_invalid_first_char(self):
        self.assertEqual(
            msilib.make_id("9.short"), "_9.short")
        self.assertEqual(
            msilib.make_id(".short"), "_.short")

    def test_invalid_any_char(self):
        self.assertEqual(
            msilib.make_id(".s\x82ort"), "_.s_ort")
        self.assertEqual(
            msilib.make_id(".s\x82o?*+rt"), "_.s_o___rt")


def test_main():
    run_unittest(__name__)


if __name__ == '__main__':
    test_main()