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# standard imports
import unittest
# bsie imports
from bsie.utils import errors
# objects to test
from bsie.reader import ReaderBuilder
## code ##
class TestReaderBuilder(unittest.TestCase):
def test_build(self):
builder = ReaderBuilder({'bsie.reader.path.Path': {}})
# build configured reader
cls = builder.build('bsie.reader.path.Path')
import bsie.reader.path
self.assertIsInstance(cls, bsie.reader.path.Path)
# build unconfigured reader
cls = builder.build('bsie.reader.stat.Stat')
import bsie.reader.stat
self.assertIsInstance(cls, bsie.reader.stat.Stat)
# re-build previous reader (test cache)
self.assertEqual(cls, builder.build('bsie.reader.stat.Stat'))
# test invalid
self.assertRaises(TypeError, builder.build, 123)
self.assertRaises(TypeError, builder.build, None)
self.assertRaises(ValueError, builder.build, '')
self.assertRaises(ValueError, builder.build, 'Path')
self.assertRaises(errors.BuilderError, builder.build, 'path.Path')
# invalid config
builder = ReaderBuilder({'bsie.reader.stat.Stat': dict(foo=123)})
self.assertRaises(errors.BuilderError, builder.build, 'bsie.reader.stat.Stat')
builder = ReaderBuilder({'bsie.reader.stat.Stat': 123})
self.assertRaises(TypeError, builder.build, 'bsie.reader.stat.Stat')
# no instructions
builder = ReaderBuilder({})
cls = builder.build('bsie.reader.stat.Stat')
self.assertIsInstance(cls, bsie.reader.stat.Stat)
## main ##
if __name__ == '__main__':
unittest.main()
## EOF ##
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