from unittest import TestCase

import numpy

from matrix import Matrix


class TestMatrix(TestCase):
    def test_should_create_matrix_from_numpy_array_with_shape_3_2(self):
        data = numpy.array([[0, 1], [2, 3], [4, 5]])
        m = Matrix(data)

        actual_shape = m.shape()
        expected_shape = (3, 2)
        self.assertEqual(expected_shape, actual_shape)

        actual_data = m.get_data()
        expected_data = [[0, 1], [2, 3], [4, 5]]
        self.assertEqual(expected_data, actual_data)

    def test_should_create_matrix_from_numpy_array_with_shape_1_3(self):
        data = numpy.array([[0, 1, 2]])
        m = Matrix(data)

        actual_shape = m.shape()
        expected_shape = (1, 3)
        self.assertEqual(expected_shape, actual_shape)

        actual_data = m.get_data()
        expected_data = [[0, 1, 2]]
        self.assertEqual(expected_data, actual_data)

    def test_should_create_vectorlike_matrix_from_numpy_array_with_shape_3_1(self):
        data = numpy.array([0, 1, 2])
        m = Matrix(data)

        actual_shape = m.shape()
        expected_shape = (3, 1)
        self.assertEqual(expected_shape, actual_shape)

        actual_data = m.get_data()
        expected_data = [0, 1, 2]
        self.assertEqual(expected_data, actual_data)

    def test_should_create_matrix_from_list_with_shape_2_2(self):
        data = [0, 1, 2, 3]
        m = Matrix(data, shape=(2, 2))

        actual_shape = m.shape()
        expected_shape = (2, 2)
        self.assertEqual(expected_shape, actual_shape)

        actual_data = m.get_data()
        expected_data = [[0, 1], [2, 3]]
        self.assertEqual(expected_data, actual_data)