from __future__ import division, absolute_import, print_function

from numpy.testing import assert_
from pytest import raises as assert_raises
from scipy._lib._version import NumpyVersion


def test_main_versions():
    assert_(NumpyVersion('1.8.0') == '1.8.0')
    for ver in ['1.9.0', '2.0.0', '1.8.1']:
        assert_(NumpyVersion('1.8.0') < ver)

    for ver in ['1.7.0', '1.7.1', '0.9.9']:
        assert_(NumpyVersion('1.8.0') > ver)


def test_version_1_point_10():
    # regression test for gh-2998.
    assert_(NumpyVersion('1.9.0') < '1.10.0')
    assert_(NumpyVersion('1.11.0') < '1.11.1')
    assert_(NumpyVersion('1.11.0') == '1.11.0')
    assert_(NumpyVersion('1.99.11') < '1.99.12')


def test_alpha_beta_rc():
    assert_(NumpyVersion('1.8.0rc1') == '1.8.0rc1')
    for ver in ['1.8.0', '1.8.0rc2']:
        assert_(NumpyVersion('1.8.0rc1') < ver)

    for ver in ['1.8.0a2', '1.8.0b3', '1.7.2rc4']:
        assert_(NumpyVersion('1.8.0rc1') > ver)

    assert_(NumpyVersion('1.8.0b1') > '1.8.0a2')


def test_dev_version():
    assert_(NumpyVersion('1.9.0.dev-Unknown') < '1.9.0')
    for ver in ['1.9.0', '1.9.0a1', '1.9.0b2', '1.9.0b2.dev-ffffffff']:
        assert_(NumpyVersion('1.9.0.dev-f16acvda') < ver)

    assert_(NumpyVersion('1.9.0.dev-f16acvda') == '1.9.0.dev-11111111')


def test_dev_a_b_rc_mixed():
    assert_(NumpyVersion('1.9.0a2.dev-f16acvda') == '1.9.0a2.dev-11111111')
    assert_(NumpyVersion('1.9.0a2.dev-6acvda54') < '1.9.0a2')


def test_dev0_version():
    assert_(NumpyVersion('1.9.0.dev0+Unknown') < '1.9.0')
    for ver in ['1.9.0', '1.9.0a1', '1.9.0b2', '1.9.0b2.dev0+ffffffff']:
        assert_(NumpyVersion('1.9.0.dev0+f16acvda') < ver)

    assert_(NumpyVersion('1.9.0.dev0+f16acvda') == '1.9.0.dev0+11111111')


def test_dev0_a_b_rc_mixed():
    assert_(NumpyVersion('1.9.0a2.dev0+f16acvda') == '1.9.0a2.dev0+11111111')
    assert_(NumpyVersion('1.9.0a2.dev0+6acvda54') < '1.9.0a2')


def test_raises():
    for ver in ['1.9', '1,9.0', '1.7.x']:
        assert_raises(ValueError, NumpyVersion, ver)

