| 1 | #!/usr/bin/env python2
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| 2 | # Copyright 2016 Andy Chu. All rights reserved.
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| 3 | # Licensed under the Apache License, Version 2.0 (the "License");
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| 4 | # you may not use this file except in compliance with the License.
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| 5 | # You may obtain a copy of the License at
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| 6 | #
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| 7 | # http://www.apache.org/licenses/LICENSE-2.0
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| 8 | """
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| 9 | word_eval_test.py: Tests for word_eval.py
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| 10 | """
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| 11 | from __future__ import print_function
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| 12 |
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| 13 | import unittest
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| 14 |
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| 15 | from core import error
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| 16 | from core import test_lib
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| 17 | from core import util
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| 18 | from frontend import consts
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| 19 | from osh import word_eval
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| 20 | from osh.cmd_parse_test import assertParseSimpleCommand
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| 21 |
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| 22 |
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| 23 | def InitEvaluator():
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| 24 | word_ev = test_lib.InitWordEvaluator()
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| 25 | test_lib.SetLocalString(word_ev.mem, 'x', '- -- ---')
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| 26 | test_lib.SetLocalString(word_ev.mem, 'y', 'y yy')
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| 27 | test_lib.SetLocalString(word_ev.mem, 'empty', '')
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| 28 | test_lib.SetLocalString(word_ev.mem, 'binding', 'spam=eggs')
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| 29 | test_lib.SetLocalString(word_ev.mem, 'binding_with_spaces',
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| 30 | 'x=green eggs and ham')
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| 31 |
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| 32 | word_ev.mem.SetArgv(['x', 'foo', 'spam=eggs'])
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| 33 | return word_ev
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| 34 |
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| 35 |
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| 36 | class RegexTest(unittest.TestCase):
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| 37 |
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| 38 | def testSplitAssignArg(self):
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| 39 | CASES = [
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| 40 | # var name, op, value
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| 41 | ('s', ['s', '', '']),
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| 42 | ('value', ['value', '', '']),
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| 43 | ('s!', None),
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| 44 | ('!', None),
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| 45 | ('=s', None),
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| 46 | ('s=', ['s', '=', '']),
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| 47 | ('s=val', ['s', '=', 'val']),
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| 48 | ('s=+', ['s', '=', '+']),
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| 49 | ('s+=val!', ['s', '+=', 'val!']),
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| 50 | ('s+=+', ['s', '+=', '+']),
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| 51 | ]
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| 52 |
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| 53 | for s, expected in CASES:
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| 54 | actual = util.RegexSearch(consts.ASSIGN_ARG_RE, s)
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| 55 | if actual is None:
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| 56 | self.assertEqual(expected, actual) # no match
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| 57 | else:
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| 58 | _, var_name, _, op, value = actual
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| 59 | self.assertEqual(expected, [var_name, op, value])
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| 60 |
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| 61 |
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| 62 | class WordEvalTest(unittest.TestCase):
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| 63 |
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| 64 | def testEvalWordSequence_Errors(self):
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| 65 | CASES = [
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| 66 | 'readonly a[x]=1',
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| 67 | 'readonly $binding a[x]=1',
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| 68 | # There's no word elision! This will be a parse error
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| 69 | 'declare $empty',
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| 70 | ]
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| 71 |
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| 72 | for case in CASES:
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| 73 | print()
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| 74 | print('\t%s' % case)
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| 75 | node = assertParseSimpleCommand(self, case)
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| 76 | ev = InitEvaluator()
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| 77 | try:
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| 78 | argv = ev.EvalWordSequence2(node.words, allow_assign=True)
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| 79 | except error.FatalRuntime:
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| 80 | pass
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| 81 | else:
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| 82 | self.fail("%r should have raised ParseError", case)
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| 83 |
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| 84 | def testEvalWordSequence(self):
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| 85 | node = assertParseSimpleCommand(self, 'ls foo')
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| 86 | self.assertEqual(2, len(node.words), node.words)
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| 87 | print()
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| 88 | print()
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| 89 |
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| 90 | CASES = [
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| 91 | 'ls [$x] $y core/a*.py',
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| 92 | 'local a=1',
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| 93 |
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| 94 | # What to do about these?
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| 95 | # Resolve second word then?
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| 96 | 'builtin local a=1',
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| 97 | 'command local a=1',
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| 98 | 'typeset -"$@"',
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| 99 | # array=(b c)',
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| 100 | 'local a=(1 2) "$@"', # static then dynamic
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| 101 | 'readonly "$@" a=(1 2)', # dynamic then static
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| 102 | 'declare -rx foo=bar spam=eggs a=(1 2)',
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| 103 | 'declare $binding',
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| 104 | 'declare $binding_with_spaces',
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| 105 |
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| 106 | # This can be parsed, but the builtin should reject it
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| 107 | 'export a=(1 2)',
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| 108 | 'export A=(["k"]=v)',
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| 109 |
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| 110 | # Hard test cases:
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| 111 | #
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| 112 | # command export foo=bar
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| 113 | # builtin export foo=bar
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| 114 | #
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| 115 | # b=builtin c=command e=export binding='foo=bar'
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| 116 | # $c $e $binding
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| 117 | # $b $e $binding
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| 118 | ]
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| 119 |
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| 120 | for case in CASES:
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| 121 | print()
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| 122 | print('\t%s' % case)
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| 123 | node = assertParseSimpleCommand(self, case)
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| 124 | ev = InitEvaluator()
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| 125 | argv = ev.EvalWordSequence2(node.words, allow_assign=True)
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| 126 |
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| 127 | print()
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| 128 | print('\tcmd_value:')
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| 129 | print(argv)
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| 130 | print()
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| 131 |
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| 132 |
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| 133 | if __name__ == '__main__':
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| 134 | unittest.main()
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