95 lines
4.1 KiB
Python
95 lines
4.1 KiB
Python
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import unittest
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from Cython.Compiler.Visitor import PrintTree
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from Cython.TestUtils import TransformTest
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from Cython.Compiler.TreePath import find_first, find_all
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from Cython.Compiler import Nodes, ExprNodes
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class TestTreePath(TransformTest):
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_tree = None
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def _build_tree(self):
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if self._tree is None:
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self._tree = self.run_pipeline([], u"""
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def decorator(fun): # DefNode
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return fun # ReturnStatNode, NameNode
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@decorator # NameNode
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def decorated(): # DefNode
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pass
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""")
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return self._tree
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def test_node_path(self):
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t = self._build_tree()
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self.assertEqual(2, len(find_all(t, "//DefNode")))
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self.assertEqual(2, len(find_all(t, "//NameNode")))
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self.assertEqual(1, len(find_all(t, "//ReturnStatNode")))
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self.assertEqual(1, len(find_all(t, "//DefNode//ReturnStatNode")))
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def test_node_path_star(self):
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t = self._build_tree()
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self.assertEqual(10, len(find_all(t, "//*")))
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self.assertEqual(8, len(find_all(t, "//DefNode//*")))
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self.assertEqual(0, len(find_all(t, "//NameNode//*")))
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def test_node_path_attribute(self):
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t = self._build_tree()
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self.assertEqual(2, len(find_all(t, "//NameNode/@name")))
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self.assertEqual(['fun', 'decorator'], find_all(t, "//NameNode/@name"))
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def test_node_path_attribute_dotted(self):
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t = self._build_tree()
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self.assertEqual(1, len(find_all(t, "//ReturnStatNode/@value.name")))
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self.assertEqual(['fun'], find_all(t, "//ReturnStatNode/@value.name"))
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def test_node_path_child(self):
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t = self._build_tree()
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self.assertEqual(1, len(find_all(t, "//DefNode/ReturnStatNode/NameNode")))
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self.assertEqual(1, len(find_all(t, "//ReturnStatNode/NameNode")))
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def test_node_path_node_predicate(self):
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t = self._build_tree()
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self.assertEqual(0, len(find_all(t, "//DefNode[.//ForInStatNode]")))
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self.assertEqual(2, len(find_all(t, "//DefNode[.//NameNode]")))
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self.assertEqual(1, len(find_all(t, "//ReturnStatNode[./NameNode]")))
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self.assertEqual(Nodes.ReturnStatNode,
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type(find_first(t, "//ReturnStatNode[./NameNode]")))
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def test_node_path_node_predicate_step(self):
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t = self._build_tree()
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self.assertEqual(2, len(find_all(t, "//DefNode[.//NameNode]")))
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self.assertEqual(8, len(find_all(t, "//DefNode[.//NameNode]//*")))
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self.assertEqual(1, len(find_all(t, "//DefNode[.//NameNode]//ReturnStatNode")))
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self.assertEqual(Nodes.ReturnStatNode,
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type(find_first(t, "//DefNode[.//NameNode]//ReturnStatNode")))
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def test_node_path_attribute_exists(self):
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t = self._build_tree()
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self.assertEqual(2, len(find_all(t, "//NameNode[@name]")))
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self.assertEqual(ExprNodes.NameNode,
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type(find_first(t, "//NameNode[@name]")))
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def test_node_path_attribute_exists_not(self):
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t = self._build_tree()
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self.assertEqual(0, len(find_all(t, "//NameNode[not(@name)]")))
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self.assertEqual(2, len(find_all(t, "//NameNode[not(@honking)]")))
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def test_node_path_and(self):
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t = self._build_tree()
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self.assertEqual(1, len(find_all(t, "//DefNode[.//ReturnStatNode and .//NameNode]")))
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self.assertEqual(0, len(find_all(t, "//NameNode[@honking and @name]")))
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self.assertEqual(0, len(find_all(t, "//NameNode[@name and @honking]")))
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self.assertEqual(2, len(find_all(t, "//DefNode[.//NameNode[@name] and @name]")))
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def test_node_path_attribute_string_predicate(self):
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t = self._build_tree()
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self.assertEqual(1, len(find_all(t, "//NameNode[@name = 'decorator']")))
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def test_node_path_recursive_predicate(self):
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t = self._build_tree()
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self.assertEqual(2, len(find_all(t, "//DefNode[.//NameNode[@name]]")))
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self.assertEqual(1, len(find_all(t, "//DefNode[.//NameNode[@name = 'decorator']]")))
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self.assertEqual(1, len(find_all(t, "//DefNode[.//ReturnStatNode[./NameNode[@name = 'fun']]/NameNode]")))
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if __name__ == '__main__':
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unittest.main()
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