OILS
/
osh
/
bool_parse_test.py
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#!/usr/bin/env python2
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# Copyright 2016 Andy Chu. All rights reserved.
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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"""
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bool_parse_test.py: Tests for bool_parse.py
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"""
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import unittest
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from _devbuild.gen.id_kind_asdl import Id
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from _devbuild.gen.syntax_asdl import bool_expr_e
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from _devbuild.gen.types_asdl import lex_mode_e
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from core import test_lib
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from osh import bool_parse # module under test
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def _ReadWords(w_parser):
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words = []
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while True:
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w = w_parser.ReadWord(lex_mode_e.DBracket)
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if w.Type() == Id.Eof_Real:
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break
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words.append(w)
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print('')
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print('words:', words)
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return words
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def _MakeParser(code_str):
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# NOTE: We need the extra ]] token
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arena = test_lib.MakeArena('<bool_parse_test.py>')
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w_parser = test_lib.InitWordParser(code_str + ' ]]', arena=arena)
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w_parser._SetNext(lex_mode_e.DBracket) # for tests only
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p = bool_parse.BoolParser(w_parser)
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p._Next()
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return p
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class BoolParserTest(unittest.TestCase):
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def testParseFactor(self):
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p = _MakeParser('foo')
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print(p.ParseFactor())
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self.assertTrue(p._TestAtEnd())
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p = _MakeParser('$foo"bar"')
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print(p.ParseFactor())
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self.assertTrue(p._TestAtEnd())
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p = _MakeParser('-z foo')
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print('-------------')
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node = p.ParseFactor()
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print(node)
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self.assertTrue(p._TestAtEnd())
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self.assertEqual(bool_expr_e.Unary, node.tag())
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p = _MakeParser('foo == bar')
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node = p.ParseFactor()
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print(node)
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self.assertTrue(p._TestAtEnd())
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self.assertEqual(bool_expr_e.Binary, node.tag())
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def testParseNegatedFactor(self):
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p = _MakeParser('foo')
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node = p.ParseNegatedFactor()
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print(node)
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self.assertTrue(p._TestAtEnd())
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self.assertEqual(bool_expr_e.WordTest, node.tag())
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p = _MakeParser('! foo')
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node = p.ParseNegatedFactor()
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print(node)
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self.assertTrue(p._TestAtEnd())
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self.assertEqual(bool_expr_e.LogicalNot, node.tag())
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def testParseTerm(self):
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p = _MakeParser('foo && ! bar')
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node = p.ParseTerm()
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print(node)
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self.assertEqual(bool_expr_e.LogicalAnd, node.tag())
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# TODO: This is an entire expression I guess
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p = _MakeParser('foo && ! bar && baz')
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node = p.ParseTerm()
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print(node)
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self.assertEqual(bool_expr_e.LogicalAnd, node.tag())
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p = _MakeParser('-z foo && -z bar')
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node = p.ParseTerm()
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print(node)
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self.assertEqual(bool_expr_e.LogicalAnd, node.tag())
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def testParseExpr(self):
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p = _MakeParser('foo || ! bar')
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node = p.ParseExpr()
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print(node)
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self.assertEqual(bool_expr_e.LogicalOr, node.tag())
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p = _MakeParser('a == b')
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print(p.ParseExpr())
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def testParseFactorInParens(self):
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p = _MakeParser('( foo == bar )')
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node = p.ParseFactor()
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print(node)
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self.assertTrue(p._TestAtEnd())
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self.assertEqual(bool_expr_e.Binary, node.tag())
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def testParseParenthesized(self):
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p = _MakeParser('zoo && ( foo == bar )')
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node = p.ParseExpr()
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print(node)
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self.assertEqual(bool_expr_e.LogicalAnd, node.tag())
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if __name__ == '__main__':
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unittest.main()
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