"""
Issue 801 - Problem with prefixes created for URIs containing %20
"""
from rdflib import Namespace, Graph, BNode, Literal
import unittest


class TestIssue801(unittest.TestCase):
    def test_issue_801(self):
        g = Graph()
        example = Namespace("http://example.org/")
        g.bind("", example)
        node = BNode()
        g.add((node, example["first%20name"], Literal("John")))
        self.assertEqual(
            g.serialize(format="turtle").split("\n")[-3], '[] :first%20name "John" .'
        )


if __name__ == "__main__":
    unittest.main()