# (C) British Crown Copyright 2011 - 2012, Met Office
#
# This file is part of cartopy.
#
# cartopy is free software: you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by the
# Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# cartopy is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with cartopy.  If not, see <http://www.gnu.org/licenses/>.
 
import numpy as np
import matplotlib.pyplot as plt
 
from cartopy.tests.mpl import ImageTesting
 
 
class ExampleImageTesting(ImageTesting):
    """Subclasses ImageTesting to nullify the plt.show commands."""
    def __call__(self, test_func):
        fn = ImageTesting.__call__(self, test_func)
 
        def new_fn(*args, **kwargs):
            try:
                show = plt.show
                plt.show = lambda *args, **kwargs: None
                r = fn(*args, **kwargs)
            finally:
                plt.show = show
            return r
 
        new_fn.__name__ = fn.__name__
        return new_fn
 
 
@ExampleImageTesting(['global_map'])
def test_global_map():
    import cartopy.examples.global_map as c
    c.main()
 
 
if __name__ == '__main__':
    import nose
    nose.runmodule(argv=['-s', '--with-doctest'], exit=False)