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