#!/usr/bin/env python
# encoding: utf-8


import unittest

from mapytex.calculus import generic


class TestGeneric(unittest.TestCase):
    """Testing functions from mapytex.calculus.generic"""

    def test_flatten_list1(self):
        l = [1, [2, 3], [[4, 5], 6], 7]
        flat_l = generic.flatten_list(l)

        true_flat = list(range(1, 8))

        self.assertEqual(flat_l, true_flat)

    def test_flatten_list2(self):
        l = list(range(10))
        flat_l = generic.flatten_list(l)

        true_flat = list(range(10))

        self.assertEqual(flat_l, true_flat)

    def test_first_elem_simple_iter(self):
        """ For simple iterable """
        l = range(10)
        first = generic.first_elem(l)

        self.assertAlmostEqual(0, first)

        s = "plopplop"
        first = generic.first_elem(s)
        self.assertAlmostEqual("p", first)

    def test_first_elem_iter_in_iter(self):
        """ Interable in iterable """
        l = [[1, 2], [4, 5, [6, 7, 8]], 9]
        first = generic.first_elem(l)

        self.assertAlmostEqual(first, 1)

        l = [[[1]]]
        first = generic.first_elem(l)

        self.assertAlmostEqual(first, 1)

        l = ["abc"]
        first = generic.first_elem(l)

        self.assertAlmostEqual(first, "a")

        l = ["abc", [4, 5, [6, 7, 8]], 9]
        first = generic.first_elem(l)

        self.assertAlmostEqual(first, "a")

        l = [["abc", 1], [4, 5, [6, 7, 8]], 9]
        first = generic.first_elem(l)

        self.assertAlmostEqual(first, "a")

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


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