def test_should_provide_iterator_over_all_parents_in_order(self):
parent = self.scope
parents = [parent]
for i in range(3):
parent = Scope(parent)
parents.append(parent)
child = Scope(parent)
self.assertListEqual(list(reversed(parents)), list(child.parents()))
class ScopeTest(unittest.TestCase):
"""Test class for Scopes."""
def setUp(self):
self.maxDiff = None
self.scope = Scope()
self.decls = [_Decl() for i in range(3)]
def test_should_contain_a_declaration_made_in_it(self):
self.scope.add(self.decls[0])
self.assertTrue(self.decls[0] in self.scope)
def test_should_not_contain_a_declaration_made_nowhere(self):
self.scope.add(self.decls[0])
self.assertFalse(self.decls[1] in self.scope)
def test_should_not_contain_a_declaration_made_in_a_parent_scope(self):
child = Scope(self.scope)
self.scope.add(self.decls[0])
self.assertFalse(self.decls[0] in child)
def test_should_not_contain_a_declaration_made_in_a_child_scope(self):
child = Scope(self.scope)
child.add(self.decls[0])
self.assertFalse(self.decls[0] in self.scope)
def test_should_not_contain_declarations_when_empty(self):
for decl in self.scope:
self.fail()
def test_should_provide_iterator_over_all_decls_it_contains_in_order(self):
for decl in self.decls:
self.scope.add(decl)
self.assertListEqual(self.decls, list(decl for decl in self.scope))
def test_should_appear_as_outermost_when_parentless(self):
self.assertTrue(self.scope.is_outermost())
def test_should_not_appear_as_outermost_when_having_parents(self):
child = Scope(self.scope)
self.assertFalse(child.is_outermost())
def test_should_provide_parent_scope_or_None_when_outermost(self):
self.assertIsNone(self.scope.parent)
self.assertEqual(Scope(self.scope).parent, self.scope)
def test_should_provide_iterator_over_all_parents_in_order(self):
parent = self.scope
parents = [parent]
for i in range(3):
parent = Scope(parent)
parents.append(parent)
child = Scope(parent)
self.assertListEqual(list(reversed(parents)), list(child.parents()))
def test_should_provide_empty_sequence_of_parents_when_outermost(self):
self.assertListEqual(list(), list(self.scope.parents()))
def test_should_not_appear_as_outermost_when_having_parents(self):
child = Scope(self.scope)
self.assertFalse(child.is_outermost())
def test_should_not_contain_a_declaration_made_in_a_child_scope(self):
child = Scope(self.scope)
child.add(self.decls[0])
self.assertFalse(self.decls[0] in self.scope)
def setUp(self):
self.maxDiff = None
self.scope = Scope()
self.decls = [_Decl() for i in range(3)]
