import unittest

from mopidy.config import validators


class ValidateChoiceTest(unittest.TestCase):
    def test_no_choices_passes(self):
        validators.validate_choice("foo", None)

    def test_valid_value_passes(self):
        validators.validate_choice("foo", ["foo", "bar", "baz"])
        validators.validate_choice(1, [1, 2, 3])

    def test_empty_choices_fails(self):
        self.assertRaises(ValueError, validators.validate_choice, "foo", [])

    def test_invalid_value_fails(self):
        words = ["foo", "bar", "baz"]
        self.assertRaises(
            ValueError, validators.validate_choice, "foobar", words
        )
        self.assertRaises(ValueError, validators.validate_choice, 5, [1, 2, 3])


class ValidateMinimumTest(unittest.TestCase):
    def test_no_minimum_passes(self):
        validators.validate_minimum(10, None)

    def test_valid_value_passes(self):
        validators.validate_minimum(10, 5)

    def test_to_small_value_fails(self):
        self.assertRaises(ValueError, validators.validate_minimum, 10, 20)

    def test_to_small_value_fails_with_zero_as_minimum(self):
        self.assertRaises(ValueError, validators.validate_minimum, -1, 0)


class ValidateMaximumTest(unittest.TestCase):
    def test_no_maximum_passes(self):
        validators.validate_maximum(5, None)

    def test_valid_value_passes(self):
        validators.validate_maximum(5, 10)

    def test_to_large_value_fails(self):
        self.assertRaises(ValueError, validators.validate_maximum, 10, 5)

    def test_to_large_value_fails_with_zero_as_maximum(self):
        self.assertRaises(ValueError, validators.validate_maximum, 5, 0)


class ValidateRequiredTest(unittest.TestCase):
    def test_passes_when_false(self):
        validators.validate_required("foo", False)
        validators.validate_required("", False)
        validators.validate_required("  ", False)
        validators.validate_required([], False)

    def test_passes_when_required_and_set(self):
        validators.validate_required("foo", True)
        validators.validate_required(" foo ", True)
        validators.validate_required([1], True)

    def test_blocks_when_required_and_emtpy(self):
        self.assertRaises(ValueError, validators.validate_required, "", True)
        self.assertRaises(ValueError, validators.validate_required, [], True)