from gitlint.config import LintConfig
from gitlint.contrib.rules.signedoff_by import SignedOffBy
from gitlint.rules import RuleViolation
from gitlint.tests.base import BaseTestCase


class ContribSignedOffByTests(BaseTestCase):
    def test_enable(self):
        # Test that rule can be enabled in config
        for rule_ref in ["CC1", "contrib-body-requires-signed-off-by"]:
            config = LintConfig()
            config.contrib = [rule_ref]
            self.assertIn(SignedOffBy(), config.rules)

    def test_signedoff_by(self):
        # No violations when 'Signed-off-by' line is present
        rule = SignedOffBy()
        violations = rule.validate(self.gitcommit("Föobar\n\nMy Body\nSigned-off-by: John Smith"))
        self.assertListEqual([], violations)

        # Assert violation when no 'Signed-off-by' line is present
        violations = rule.validate(self.gitcommit("Föobar\n\nMy Body"))
        expected_violation = RuleViolation("CC1", "Body does not contain a 'Signed-off-by' line", line_nr=1)
        self.assertListEqual(violations, [expected_violation])

        # Assert violation when no 'Signed-off-by' in title but not in body
        violations = rule.validate(self.gitcommit("Signed-off-by\n\nFöobar"))
        self.assertListEqual(violations, [expected_violation])