| 1 | #!/usr/bin/env python2
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| 2 | """
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| 3 | match_test.py: Tests for match.py
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| 4 | """
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| 5 | from __future__ import print_function
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| 6 |
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| 7 | import unittest
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| 8 |
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| 9 | from _devbuild.gen.id_kind_asdl import Id, Id_str
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| 10 | from mycpp.mylib import log
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| 11 | from frontend import match # module under test
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| 12 |
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| 13 |
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| 14 | def _PrintTokens(lex):
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| 15 | for id_, val in lex.Tokens():
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| 16 | log(' %s %r', Id_str(id_), val)
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| 17 | if id_ == Id.Eol_Tok:
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| 18 | break
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| 19 |
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| 20 |
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| 21 | class MatchTest(unittest.TestCase):
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| 22 |
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| 23 | def testShouldHijack(self):
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| 24 | self.assertEqual(False, match.ShouldHijack('# comment\n[line 2]'))
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| 25 | self.assertEqual(False, match.ShouldHijack('#!/usr/bin/python\n'))
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| 26 | self.assertEqual(False, match.ShouldHijack(''))
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| 27 | self.assertEqual(False, match.ShouldHijack('\n'))
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| 28 |
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| 29 | self.assertEqual(True, match.ShouldHijack('#!/usr/bin/env bash\n'))
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| 30 |
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| 31 | self.assertEqual(True, match.ShouldHijack('#!/bin/bash\n[line 2]'))
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| 32 | self.assertEqual(True, match.ShouldHijack('#!/bin/bash -e\n[line 2]'))
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| 33 | self.assertEqual(True, match.ShouldHijack('#!/bin/sh\n[line 2]\n'))
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| 34 | self.assertEqual(True, match.ShouldHijack('#!/bin/sh -e\n[line 2]\n'))
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| 35 |
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| 36 | # Unlikely but OK
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| 37 | self.assertEqual(True, match.ShouldHijack('#!/usr/bin/env sh\n'))
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| 38 |
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| 39 | # fastlex bug: should not allow \0
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| 40 | self.assertEqual(False, match.ShouldHijack('#!/usr/bin/env \0 sh\n'))
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| 41 |
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| 42 | def testBraceRangeLexer(self):
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| 43 | lex = match.BraceRangeLexer('1..3')
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| 44 | _PrintTokens(lex)
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| 45 |
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| 46 | def testJ8Lexer(self):
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| 47 | cases = [
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| 48 | '00',
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| 49 | '[]',
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| 50 | '[3.14, 4, true]',
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| 51 | 'truez',
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| 52 | 'false\t',
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| 53 | 'bad',
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| 54 | ]
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| 55 |
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| 56 | for s in cases:
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| 57 | log('---')
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| 58 | log('J8 CASE %r', s)
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| 59 | lex = match.SimpleLexer(match.MatchJ8Token, s)
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| 60 | _PrintTokens(lex)
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| 61 |
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| 62 | def testJ8StrLexer(self):
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| 63 | cases = [
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| 64 | '"hi"',
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| 65 | # Newlines in strings are control chars, not accepted
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| 66 | '"hi\n"',
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| 67 | '"hi\\n"',
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| 68 | r'"\yff \xff \u1234 \u{123456} \\ \" "',
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| 69 |
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| 70 | # This points at \ as Id.Unknown_Tok, which I suppose is OK
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| 71 | r'"\a \z \/ \b "',
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| 72 | ]
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| 73 |
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| 74 | for s in cases:
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| 75 | log('---')
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| 76 | log('J8 STR CASE %r', s)
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| 77 | lex = match.SimpleLexer(match.MatchJ8StrToken, s)
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| 78 | _PrintTokens(lex)
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| 79 |
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| 80 | def testLooksLike(self):
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| 81 | INTS = [
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| 82 | (False, ''),
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| 83 | (False, 'foo'),
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| 84 | (True, '3'),
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| 85 | (True, '-3'),
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| 86 | (False, '-'),
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| 87 | (False, '.'),
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| 88 | (True, '\t12 '),
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| 89 | (True, '\t-12 '),
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| 90 | (False, ' - 12 '),
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| 91 | ]
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| 92 |
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| 93 | MORE_INTS = [
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| 94 | (True, ' 3_000 '),
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| 95 | ]
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| 96 |
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| 97 | for expected, s in INTS + MORE_INTS:
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| 98 | self.assertEqual(expected, match.LooksLikeInteger(s))
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| 99 |
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| 100 | FLOATS = [
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| 101 | (True, '3.0'),
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| 102 | (True, '-3.0'),
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| 103 | (True, '\t3.0 '),
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| 104 | (True, '\t-3.0 '),
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| 105 | (False, ' - 3.0 '),
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| 106 | ]
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| 107 |
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| 108 | for expected, s in INTS + FLOATS: # Use BOTH test cases
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| 109 | self.assertEqual(expected, match.LooksLikeFloat(s), s)
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| 110 |
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| 111 |
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| 112 | if __name__ == '__main__':
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| 113 | unittest.main()
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