coala-analyzer / coala

tests/misc/AnnotationsTest.py

from unittest import TestCase

from coalib.misc.Annotations import typechain


class AnnotationsTest(TestCase):

The variable TestCase does not seem to be defined.

    def test_empty(self):
        with self.assertRaises(TypeError) as ctx:

The variable ctx does not seem to be defined.

The variable TypeError does not seem to be defined.

            typechain()
        self.assertEqual(str(ctx.exception), "No arguments were provided.")

    def test_with_lambda(self):
        function = typechain(lambda x: int(x) > 0)
        with self.assertRaises(ValueError):

The variable ValueError does not seem to be defined.

            function("str")
        self.assertEqual(function("10"), True)

    def test_with_function(self):
        def positive(val):
            val = int(val)
            if val > 0:
                return val
            raise ValueError

The variable ValueError does not seem to be defined.

        function = typechain(positive, ord)

The variable ord does not seem to be defined.

The variable positive does not seem to be defined.

        with self.assertRaises(ValueError):
            function(0)
        with self.assertRaises(ValueError):
            function("str")
        self.assertEqual(function("10"), 10)
        self.assertEqual(function("0"), 48)

    def test_with_function_without_arguments(self):
        def dummy():
            return 10
        function = typechain(dummy)

The variable dummy does not seem to be defined.

        with self.assertRaises(ValueError):

The variable ValueError does not seem to be defined.

            function(0)

    def test_with_custom_type(self):
        class Positive:

            def __init__(self, val):
                val = int(val)

The variable val does not seem to be defined.

                if val > 0:
                    self.val = val
                else:
                    raise ValueError

The variable ValueError does not seem to be defined.

        function = typechain(Positive, ord)

The variable Positive does not seem to be defined.

The variable ord does not seem to be defined.

        with self.assertRaises(ValueError):
            function(0)
        obj = function("10")
        self.assertIsInstance(obj, Positive)

The variable obj does not seem to be defined.

        self.assertEqual(obj.val, 10)
        self.assertEqual(function("0"), 48)

    def test_with_empty_class(self):
        class Dummy:
            pass

        function = typechain(Dummy)

The variable Dummy does not seem to be defined.

        with self.assertRaises(ValueError):

The variable ValueError does not seem to be defined.

            function("str")
        dummy = Dummy()
        self.assertEqual(function(dummy), dummy)

The variable dummy does not seem to be defined.