mapnik/tests/python_tests/load_map_test.py

#!/usr/bin/env python

from nose.tools import *
from utilities import execution_path, run_all

import os, sys, glob, mapnik

def setup():
    # All of the paths used are relative, if we run the tests
    # from another directory we need to chdir()
    os.chdir(execution_path('.'))

def test_broken_files():
    broken_files = glob.glob("../data/broken_maps/*.xml")
    # Add a filename that doesn't exist 
    broken_files.append("../data/broken/does_not_exist.xml")

    failures = [];
    for filename in broken_files:
        try:
            m = mapnik.Map(512, 512)
            strict = True
            mapnik.load_map(m, filename, strict)
            failures.append('Loading broken map (%s) did not raise RuntimeError!' % filename)
        except RuntimeError:
            pass
    eq_(len(failures),0,'\n'+'\n'.join(failures))

def test_good_files():
    good_files = glob.glob("../data/good_maps/*.xml")

    failures = [];
    for filename in good_files:
        try:
            m = mapnik.Map(512, 512)
            strict = True
            mapnik.load_map(m, filename, strict)
            # libxml2 is not smart about paths, and clips the last directory off
            # of a path if it does not end in a trailing slash
            base_path = os.path.dirname(filename) + '/'
            mapnik.load_map_from_string(m,open(filename,'rb').read(),strict,base_path)
        except RuntimeError, e:
            # only test datasources that we have installed
            if not 'Could not create datasource' in str(e):
                failures.append('Failed to load valid map (%s)!' % filename)
    eq_(len(failures),0,'\n'+'\n'.join(failures))

if __name__ == "__main__":
    setup()
    run_all(eval(x) for x in dir() if x.startswith("test_"))