def test_is_node(self):
"""Tests the utils.is_node function"""
d = {
'a': {
'b': False,
'c': None
},
'd': None,
'e': {
'f': {
'g': None
}
}
}
self.assertEqual(False, utils.is_node(False, ''))
self.assertEqual(False, utils.is_node({}, ''))
self.assertEqual(False, utils.is_node({'x': False}, 'x'))
self.assertEqual(True, utils.is_node(d, 'a'))
self.assertEqual(False, utils.is_node(d, 'b'))
self.assertEqual(False, utils.is_node(d, 'c'))
self.assertEqual(False, utils.is_node(d, 'd'))
self.assertEqual(True, utils.is_node(d, 'e'))
self.assertEqual(False, utils.is_node(d, 'f'))
self.assertEqual(False, utils.is_node(d, 'g'))
def consume(tree, parent, includes, excludes, substitutes):
if is_node(tree, 'includes'):
dfs(tree['includes'], parent, includes,
lambda ref, v: to_forward_ref(ref))
if is_node(tree, 'excludes'):
dfs(tree['excludes'], parent, excludes,
lambda ref, v: ref)
if is_node(tree, 'substitutes'):
dfs(tree['substitutes'], parent, substitutes,
lambda ref, v: u'{0}={1}'.format(ref, shell_escape(v)))
