def test_extents(self,get_g):
from lxml import etree
xml = """ <region id='a'><extents n='10' s='-10' e='10' w='-10'/></region> """
tree = etree.parse(StringIO(xml))
r_node = tree.getroot()
r = Region(r_node)
e = r.get_extents()
self.assertEqual(e['n'], 10)
e = {'n':1,'s':0,'e':2,'w':1}
r.set_extents(e)
self.assertEqual(r.get_extents(),e)
xml = """ <region id='a'></region> """
tree = etree.parse(StringIO(xml))
r_node = tree.getroot()
r = Region(r_node)
e = r.get_extents()
self.assertEqual(e, None)
e = {'n':1,'s':0,'e':2,'w':1}
r.set_extents(e)
self.assertEqual(r.get_extents(),e)
bade = {'k':1,'s':0,'e':2,'w':1}
self.assertRaises(KeyError,r.set_extents,bade)
self.assertEqual(r.get_extents(),e)
bade = {'n':1,'s':0,'roar':2,'w':1}
self.assertRaises(KeyError,r.set_extents,bade)
self.assertEqual(r.get_extents(),e)
r.update_xml() # does nothing
def test_create_region(self,get_g):
from lxml import etree
xml = """ <region id='a' name='test_region'/> """
tree = etree.parse(StringIO(xml))
r_node = tree.getroot()
r = Region(r_node)
self.assertEqual(r.get_name(), 'test_region')
self.assertEqual(r.get_resolution(), None)
r.set_resolution(1)
self.assertEqual(r.get_resolution(), 1)
xml = """ <region id='a' name='test_region@test_mapset'/> """
tree = etree.parse(StringIO(xml))
r_node = tree.getroot()
r = Region(r_node)
self.assertEqual(r.get_name(), 'test_region')
self.assertEqual(r.get_mapset(), 'test_mapset')
xml = """ <region id='a'></region> """
tree = etree.parse(StringIO(xml))
r_node = tree.getroot()
r = Region(r_node)
self.assertEqual(r.get_resolution(), 1)
self.assertEqual(r.get_name(), None)
xml = """ <region id='a'><resolution>1</resolution></region> """
tree = etree.parse(StringIO(xml))
r_node = tree.getroot()
r = Region(r_node)
self.assertEqual(r.get_resolution(), 1)
self.assertEqual(r.get_name(), None)
xml = """ <region id='a'><resolution>201</resolution></region> """
tree = etree.parse(StringIO(xml))
r_node = tree.getroot()
r = Region(r_node)
self.assertEqual(r.get_resolution(), 201)
self.assertEqual(r.get_name(), None)
xml = """ <region id='a'><resolution>flibble</resolution></region> """
tree = etree.parse(StringIO(xml))
r_node = tree.getroot()
r = Region(r_node)
self.assertRaises(ValueError,r.get_resolution)
self.assertEqual(r.get_name(), None)
r.set_name('test_region')
self.assertEqual(r.get_name(), 'test_region')
r.set_resolution(1)
self.assertEqual(r.get_resolution(), 1)
self.assertRaises(ValueError,r.set_resolution,'fox')