def test_handle_class_scope(self):
tree = ast.parse('class SomeClass:\n\tdef some_method():\n\t\tpass')
add_parents(tree)
tracker = DefinitionTracker.get_instance()
handled_node = handle_class_scope(tree.body[0].body[0], tracker)
self.assertTrue(
len(tracker.definitions['classes']['SomeClass']['methods']), 1)
def test_handle_function_scope_outside(self):
tree = ast.parse('def some_function():\n\tpass\na = 42')
add_parents(tree)
tree = FunctionDefHandler().handle(tree)
tracker = DefinitionTracker.get_instance()
handled_node = handle_function_scope(tree.body[1].targets[0], tracker)
self.assertEqual(handled_node, tree.body[1].targets[0])
def test_handle_function_scope(self):
tree = ast.parse(
'def global_function():\n\tdef function_function():\n\t\tpass')
add_parents(tree)
tracker = DefinitionTracker.get_instance()
handled_node = handle_function_scope(tree.body[0].body[0], tracker)
pass
def test_handle_global_scope(self):
tree = ast.parse('a = "some string"')
add_parents(tree)
tracker = DefinitionTracker.get_instance()
handled_node = handle_global_scope(tree.body[0].targets[0], tracker)
self.assertEqual(handled_node.id, '_0x61')
self.assertEqual(len(tracker.definitions['variables']), 1)
def test_handle_global_scope_outside(self):
tree = ast.parse(
'def global_function():\n\tdef function_function():\n\t\tpass')
add_parents(tree)
tracker = DefinitionTracker.get_instance()
handled_node = handle_global_scope(tree.body[0].body[0], tracker)
self.assertEqual(len(tracker.definitions['functions']), 0)
def test_handle_class_scope_outside(self):
tree = ast.parse(
'def some_function():\n\tpass\nclass SomeClass:\n\tpass')
add_parents(tree)
tracker = DefinitionTracker.get_instance()
handled_node = handle_class_scope(tree.body[0], tracker)
self.assertTrue('some_function' not in tracker.definitions['classes']
['SomeClass']['methods'])
def test_handle_calls_class(self):
tree = ast.parse(
'class SomeClass:\n\tpass\nsome_variable = SomeClass()')
add_parents(tree)
tree = ClassDefHandler().handle(tree)
tracker = DefinitionTracker.get_instance()
handled_node = handle_calls(tree.body[1].value.func, tracker)
self.assertEqual(handled_node.id, '_0x38a')
def test_handle_calls_function(self):
tree = ast.parse(
'def some_function():\n\tpass\nsome_variable = some_function()')
add_parents(tree)
tree = FunctionDefHandler().handle(tree)
tracker = DefinitionTracker.get_instance()
handled_node = handle_calls(tree.body[1].value.func, tracker)
self.assertEqual(handled_node.id, '_0x579')
def test_handle_global_scope_outside(self):
tree = ast.parse('def some_function():\n\tsome_variable = 42')
add_parents(tree)
tracker = DefinitionTracker.get_instance()
handled_node = handle_global_scope(tree.body[0].body[0].targets[0],
tracker)
self.assertEqual(handled_node, tree.body[0].body[0].targets[0])
self.assertEqual(len(tracker.definitions['variables']), 0)
def test_handle_args(self):
tree = ast.parse(
'def some_function(param_1, param_2, param_3):\n\tpass')
add_parents(tree)
self.functiondef_handler.handle(tree)
handled_node = handle_args(tree.body[0].args.args[0],
DefinitionTracker.get_instance())
self.assertEqual(handled_node.arg, '_0x2a1')
def setUp(self):
self.fixture = AttributeHandler()
self.classdef_handler = ClassDefHandler()
self.functiondef_handler = FunctionDefHandler()
self.tracker = DefinitionTracker.get_instance()
self.source = 'class SomeClass:\n\tdef __init__():\n\t\tself.property = 42\n\t\tself.property2 = 84'
self.tree = ast.parse(self.source)
add_parents(self.tree)
self.tree = self.classdef_handler.handle(self.tree)
def test_handle_returns_variable(self):
tree = ast.parse(
'def some_function():\n\tsome_variable = 42\n\treturn some_variable'
)
add_parents(tree)
tree = FunctionDefHandler().handle(tree)
tracker = DefinitionTracker.get_instance()
handled_node = handle_returns(tree.body[0].body[1].value, tracker)
self.assertEqual(handled_node.id, '_0x559')
def test_handle_returns_func_in_func(self):
tree = ast.parse(
'def some_function():\n\tdef inside_function():\n\t\tpass\n\treturn inside_function()'
)
add_parents(tree)
tree = FunctionDefHandler().handle(tree)
tracker = DefinitionTracker.get_instance()
handled_node = handle_returns(tree.body[0].body[1].value.func, tracker)
self.assertEqual(handled_node.id, '_0x641')
def test_handle_class_scope_outside(self):
tree = ast.parse('class SomeClass:\n\tpass\nvariable = 42')
add_parents(tree)
tree = ClassDefHandler().handle(tree)
tracker = DefinitionTracker.get_instance()
handled_node = handle_class_scope(tree.body[1].targets[0], tracker)
self.assertEqual(handled_node, tree.body[1].targets[0])
self.assertEqual(
len(tracker.definitions['classes']['SomeClass']['variables']), 0)
def visit_Call(self, node):
"""Overrides the NodeTransformer visit_Call method. This method makes modifications
to the abstract syntax tree and stores assignments with the DefinitionTracker class
Args:
**node (:obj: `ast.Call`)**: The current Call node to be modified
"""
self.logger.info('visit_Call')
tracker = DefinitionTracker.get_instance()
return node
def test_handle_returns_class(self):
tree = ast.parse(
'class SomeClass:\n\tpass\ndef some_function():\n\treturn SomeClass()'
)
add_parents(tree)
tree = ClassDefHandler().handle(tree)
tree = FunctionDefHandler().handle(tree)
tracker = DefinitionTracker.get_instance()
handled_node = handle_returns(tree.body[1].body[0].value.func, tracker)
self.assertEqual(handled_node.id, '_0x38a')
def setUp(self):
self.fixture = ClassDefHandler()
self.tracker = DefinitionTracker.get_instance()
self.tracker.clear_definitions()
self.source = 'class TestClass(BaseClass):\n\t' \
'eighty_four = 84\n\t' \
'def __init__(self):\n\t\t' \
'self.forty_two = 42\n\t' \
'def some_method(self):\n\t\t' \
'pass'
self.tree = ast.parse(self.source)
def visit_arg(self, node):
"""Overrides the NodeTransformer visit_arg method. This method makes modifications
to arg nodes in an abstract syntax tree
Args:
**node (:obj: `ast.Assign`)**: The current arg node to be modified
Returns:
The modified arg node
"""
self.logger.info('visit_arg')
tracker = DefinitionTracker.get_instance()
node = handle_args(node, tracker)
return node
def setUp(self):
self.fixture = FunctionDefHandler()
self.classdef_handler = ClassDefHandler()
self.tracker = DefinitionTracker.get_instance()
self.source = 'def FirstFunction(param_1, param_2):\n\t' \
'first_variable = 42\n\t' \
'second_variable = param_1 + param_2\n\t' \
'return second_variable\n' \
'class SomeClass():\n\t' \
'def some_method():\n\t\t' \
'pass'
self.tree = ast.parse(self.source)
add_parents(self.tree)
self.tree = self.classdef_handler.handle(self.tree)
def visit_Attribute(self, node):
"""Overrides the NodeTransformer visit_Attribute method. This method makes modifications
to the abstract syntax tree
Args:
**node (:obj: `ast.Attribute`)**: The current Attribute node to be modified
Returns:
The modified Attribute node
"""
self.logger.info('visit_Attribute')
tracker = DefinitionTracker.get_instance()
node = handle_class_properties(node, tracker)
node = handle_class_method_calls(node, tracker)
return node
def setUp(self):
self.fixture = load_handlers(False, False)
self.tracker = DefinitionTracker.get_instance()
self.source = 'class FirstClass:\n\tpass\n\n' \
'class SecondClass:\n\tpass\n\n' \
'def FirstFunction():\n\tc = "a literal"\n\n' \
'def SecondFunction():\n\tpass\n\n' \
'a = FirstClass()\n\n' \
'b = SecondClass()\n\n' \
'FirstFunction()\n\n' \
'SecondFunction()\n\n' \
'a = SecondClass()\n\n' \
'c = 42'
self.tree = ast.parse(self.source)
add_parents(self.tree)
def test_obscure_class_bases(self):
tree = ast.parse('class SomeClass(Base1, Base2):\n\tpass')
add_parents(tree)
bases = []
tracker = DefinitionTracker.get_instance()
tracker.definitions['classes']['Base1'] = {
'prev_name': 'Base1',
'new_name': 'ObscuredBase1'
}
tracker.definitions['classes']['Base2'] = {
'prev_name': 'Base2',
'new_name': 'ObscuredBase2'
}
for base in tree.body[0].bases:
bases.append(obscure_class_bases(base, tracker))
self.assertEqual(bases[0].id, 'ObscuredBase1')
self.assertEqual(bases[1].id, 'ObscuredBase2')
def visit_ClassDef(self, node):
"""Overrides the NodeTransformer visit_ClassDef method. This method makes modifications
to the abstract syntax tree and stores class definitions with the DefinitionTracker class
Args:
**node (:obj: `ast.ClassDef`)**: The current ClassDef node to be modified
Returns:
The modified ClassDef node
"""
self.logger.info('visit_ClassDef')
tracker = DefinitionTracker.get_instance()
# Check to make sure this node is not already in tracker definitions
if isinstance(node.name, str):
class_dict = create_class_dictionary(node)
tracker.add_class(class_dict)
node.name = tracker.definitions['classes'][node.name]['new_name']
return node
def visit_FunctionDef(self, node):
"""Overrides the NodeTransformer visit_FunctionDef method. This method makes modifications
to the abstract syntax tree and stores assignments with the DefinitionTracker class
Args:
**node (:obj: `ast.FunctionDef`)**: The current FunctionDef node to be modified
Returns:
The modified FunctionDef node
"""
self.logger.info('visit_FunctionDef')
tracker = DefinitionTracker.get_instance()
if isinstance(node.name, str):
node = handle_global_scope(node, tracker)
node = handle_class_scope(node, tracker)
node = handle_function_scope(node, tracker)
self.generic_visit(node)
return node
def visit_Name(self, node):
"""Overrides the NodeTransformer visit_Name method. This method makes modifications
to the abstract syntax tree when it encounters a Name node
Args:
**node (:obj: `ast.Name`)**: The current Name node to be modified
Returns:
The modified Name node
"""
self.logger.info('visit_Name')
tracker = DefinitionTracker.get_instance()
if isinstance(node.id, str):
node = obscure_class_bases(node, tracker)
node = handle_global_scope(node, tracker)
node = handle_class_scope(node, tracker)
node = handle_function_scope(node, tracker)
node = handle_calls(node, tracker)
node = handle_returns(node, tracker)
self.generic_visit(node)
return node
def test_handle_global_scope(self):
tree = ast.parse('def global_function():\n\tpass')
add_parents(tree)
tracker = DefinitionTracker.get_instance()
handled_node = handle_global_scope(tree.body[0], tracker)
self.assertTrue('global_function' in tracker.definitions['functions'])
def tearDown(self):
tracker = DefinitionTracker.get_instance()
tracker.clear_definitions()
def test_handle_returns_none(self):
tree = ast.parse('def some_function():\n\tsome_variable = 42')
add_parents(tree)
tracker = DefinitionTracker.get_instance()
handled_node = handle_returns(tree.body[0].body[0].targets[0], tracker)
self.assertEqual(handled_node, tree.body[0].body[0].targets[0])
def setUp(self):
self.fixture = AssignHandler()
self.tracker = DefinitionTracker.get_instance()
def test_handle_calls_outside(self):
tree = ast.parse('a = 42')
add_parents(tree)
tracker = DefinitionTracker.get_instance()
handled_node = handle_calls(tree.body[0].targets[0], tracker)
self.assertEqual(handled_node, tree.body[0].targets[0])
