155 lines
4.4 KiB
Python
155 lines
4.4 KiB
Python
import os
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import shutil
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from os import path
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import pytest
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import ast
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from core.ast.nodes import NodeParent, GenericNodeConcept
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import core.ast.nodes
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from core.ast.visitors import ConceptNodeVisitor, UnreferencedNamesVisitor
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from core.builtin_concepts import BuiltinConcepts
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from core.sheerka import Sheerka
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tests_root = path.abspath("../build/tests")
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root_folder = "init_folder"
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@pytest.fixture(autouse=True)
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def init_test():
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if path.exists(tests_root):
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shutil.rmtree(tests_root)
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if not path.exists(tests_root):
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os.makedirs(tests_root)
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current_pwd = os.getcwd()
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os.chdir(tests_root)
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yield None
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os.chdir(current_pwd)
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def get_sheerka():
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sheerka = Sheerka()
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sheerka.initialize(root_folder)
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return sheerka
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class TestNameVisitor(ConceptNodeVisitor):
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"""
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Test class for a basic Visitor test
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"""
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def __init__(self):
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self.names = []
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def visit_Name(self, node):
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self.names.append(node)
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def test_i_can_transform_simple_ast_using_generic_node():
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source = """
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def my_function(a,b):
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for i in range(b):
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a = a+b
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return a
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"""
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tree = ast.parse(source)
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tree_as_concept = core.ast.nodes.transform(tree)
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sheerka = get_sheerka()
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assert tree_as_concept.node_type == "Module"
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assert sheerka.isinstance(tree_as_concept.get_prop("body"), BuiltinConcepts.LIST)
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def_func = tree_as_concept.get_prop("body")[0]
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assert sheerka.isinstance(def_func, BuiltinConcepts.GENERIC_NODE)
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assert def_func.node_type == "FunctionDef"
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assert def_func.parent == NodeParent(tree_as_concept, "body")
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assert def_func.get_prop("name") == "my_function"
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def_func_args = def_func.get_prop("args")
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assert sheerka.isinstance(def_func_args, BuiltinConcepts.GENERIC_NODE)
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assert def_func_args.node_type == "arguments"
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def_func_args_real_args = def_func_args.get_prop("args")
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assert sheerka.isinstance(def_func_args_real_args, BuiltinConcepts.LIST)
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assert len(def_func_args_real_args) == 2
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assert sheerka.isinstance(def_func_args_real_args[0], BuiltinConcepts.GENERIC_NODE)
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assert def_func_args_real_args[0].node_type == "arg"
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assert def_func_args_real_args[0].parent == NodeParent(def_func_args, "args")
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assert def_func_args_real_args[0].get_prop("arg") == "a"
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assert sheerka.isinstance(def_func_args_real_args[1], BuiltinConcepts.GENERIC_NODE)
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assert def_func_args_real_args[1].node_type == "arg"
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assert def_func_args_real_args[1].parent == NodeParent(def_func_args, "args")
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assert def_func_args_real_args[1].get_prop("arg") == "b"
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def_fun_body = def_func.get_prop("body")
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assert sheerka.isinstance(def_fun_body, BuiltinConcepts.LIST)
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assert len(def_fun_body) == 2
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def_fun_body_for = def_fun_body[0]
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assert sheerka.isinstance(def_fun_body_for, BuiltinConcepts.GENERIC_NODE)
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assert def_fun_body_for.node_type == "For"
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assert def_fun_body_for.parent == NodeParent(def_func, "body")
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def_fun_body_return = def_fun_body[1]
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assert sheerka.isinstance(def_fun_body_return, BuiltinConcepts.GENERIC_NODE)
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assert def_fun_body_return.node_type == "Return"
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assert def_fun_body_return.parent == NodeParent(def_func, "body")
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def test_i_can_visit_concept_node():
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source = """
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def my_function(a,b):
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for i in range(b):
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a = a+b
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return a
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"""
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node = ast.parse(source)
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concept_node = core.ast.nodes.transform(node)
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visitor = TestNameVisitor()
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visitor.visit(concept_node)
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sheerka = get_sheerka()
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assert sheerka.value(visitor.names[0]) == "i"
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assert sheerka.value(visitor.names[1]) == "range"
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assert sheerka.value(visitor.names[2]) == "b"
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assert sheerka.value(visitor.names[3]) == "a"
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assert sheerka.value(visitor.names[4]) == "a"
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assert sheerka.value(visitor.names[5]) == "b"
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assert sheerka.value(visitor.names[6]) == "a"
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def test_i_can_get_non_referenced_variables():
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source = """
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def my_function(a,b):
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for i in range(b):
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a = a+b
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return a
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my_function(x,y)
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"""
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sheerka = get_sheerka()
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node = ast.parse(source)
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concept_node = core.ast.nodes.transform(node)
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visitor = UnreferencedNamesVisitor(sheerka)
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visitor.visit(concept_node)
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values = visitor.names
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assert len(visitor.names) == 2
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assert "x" in values
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assert "y" in values
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def test_i_can_compare_NodeParent_with_tuple():
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node_parent = NodeParent(GenericNodeConcept("For", None), "target")
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assert node_parent == ("For", "target")
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