| 1 | #!/usr/bin/env python2
|
| 2 | """
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| 3 | cmd_parse_test.py: Tests for cmd_parse.py
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| 4 | """
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| 5 |
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| 6 | import unittest
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| 7 |
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| 8 | from _devbuild.gen.id_kind_asdl import Id, Id_str
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| 9 | from _devbuild.gen.syntax_asdl import command_e, for_iter_e, pat_e
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| 10 | from asdl import format as fmt
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| 11 | from core import error
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| 12 | from core import state
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| 13 | from core import test_lib
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| 14 | from display import ui
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| 15 | from frontend import lexer
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| 16 |
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| 17 | from osh import word_
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| 18 |
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| 19 |
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| 20 | def _assertParseMethod(test, code_str, method, expect_success=True):
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| 21 | arena = test_lib.MakeArena('<cmd_parse_test>')
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| 22 | errfmt = ui.ErrorFormatter()
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| 23 | c_parser = test_lib.InitCommandParser(code_str, arena=arena)
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| 24 | m = getattr(c_parser, method)
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| 25 | try:
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| 26 | node = m()
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| 27 |
|
| 28 | except error.Parse as e:
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| 29 | errfmt.PrettyPrintError(e)
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| 30 | if expect_success:
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| 31 | test.fail('%r failed' % code_str)
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| 32 | node = None
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| 33 | else:
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| 34 | fmt.PrettyPrint(node)
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| 35 | if not expect_success:
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| 36 | test.fail('Expected %r to fail ' % code_str)
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| 37 |
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| 38 | return node
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| 39 |
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| 40 |
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| 41 | def _assert_ParseCommandListError(test, code_str):
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| 42 | arena = test_lib.MakeArena('<cmd_parse_test>')
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| 43 | errfmt = ui.ErrorFormatter()
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| 44 | c_parser = test_lib.InitCommandParser(code_str, arena=arena)
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| 45 |
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| 46 | try:
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| 47 | node = c_parser._ParseCommandLine()
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| 48 | except error.Parse as e:
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| 49 | errfmt.PrettyPrintError(e)
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| 50 | else:
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| 51 | print('UNEXPECTED:')
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| 52 | fmt.PrettyPrint(node)
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| 53 | test.fail("Expected %r to fail" % code_str)
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| 54 |
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| 55 |
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| 56 | #
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| 57 | # Successes
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| 58 | #
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| 59 | # (These differences might not matter, but preserve the diversity for now)
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| 60 |
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| 61 |
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| 62 | def assertParseSimpleCommand(test, code_str):
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| 63 | return _assertParseMethod(test, code_str, 'ParseSimpleCommand')
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| 64 |
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| 65 |
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| 66 | def assertParsePipeline(test, code_str):
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| 67 | return _assertParseMethod(test, code_str, 'ParsePipeline')
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| 68 |
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| 69 |
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| 70 | def assertParseAndOr(test, code_str):
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| 71 | return _assertParseMethod(test, code_str, 'ParseAndOr')
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| 72 |
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| 73 |
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| 74 | def assert_ParseCommandLine(test, code_str):
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| 75 | return _assertParseMethod(test, code_str, '_ParseCommandLine')
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| 76 |
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| 77 |
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| 78 | def assert_ParseCommandList(test, code_str):
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| 79 | node = _assertParseMethod(test, code_str, '_ParseCommandList')
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| 80 | if len(node.children) == 1:
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| 81 | return node.children[0]
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| 82 | else:
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| 83 | return node
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| 84 |
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| 85 |
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| 86 | def assertParseRedirect(test, code_str):
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| 87 | return _assertParseMethod(test, code_str, 'ParseRedirect')
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| 88 |
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| 89 |
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| 90 | #
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| 91 | # Failures
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| 92 | #
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| 93 |
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| 94 | #def assertFailSimpleCommand(test, code_str):
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| 95 | # return _assertParseMethod(test, code_str, 'ParseSimpleCommand',
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| 96 | # expect_success=False)
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| 97 | #
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| 98 | #def assertFailCommandLine(test, code_str):
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| 99 | # return _assertParseMethod(test, code_str, '_ParseCommandLine',
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| 100 | # expect_success=False)
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| 101 |
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| 102 |
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| 103 | def assertFailCommandList(test, code_str):
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| 104 | return _assertParseMethod(test,
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| 105 | code_str,
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| 106 | '_ParseCommandList',
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| 107 | expect_success=False)
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| 108 |
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| 109 |
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| 110 | #def assertFailRedirect(test, code_str):
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| 111 | # return _assertParseMethod(test, code_str, 'ParseRedirect',
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| 112 | # expect_success=False)
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| 113 |
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| 114 |
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| 115 | class SimpleCommandTest(unittest.TestCase):
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| 116 |
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| 117 | def testParseSimpleCommand1(self):
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| 118 | node = assertParseSimpleCommand(self, 'ls foo')
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| 119 | self.assertEqual(2, len(node.words), node.words)
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| 120 |
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| 121 | node = assertParseSimpleCommand(self, 'FOO=bar ls foo')
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| 122 | self.assertEqual(2, len(node.words))
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| 123 | self.assertEqual(1, len(node.more_env))
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| 124 |
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| 125 | node = assertParseSimpleCommand(
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| 126 | self, 'FOO=bar >output.txt SPAM=eggs ls foo')
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| 127 | self.assertEqual(1, len(node.redirects))
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| 128 | self.assertEqual(2, len(node.words))
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| 129 | self.assertEqual(2, len(node.more_env))
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| 130 |
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| 131 | node = assertParseSimpleCommand(
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| 132 | self, 'FOO=bar >output.txt SPAM=eggs ls foo >output2.txt')
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| 133 | self.assertEqual(2, len(node.redirects))
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| 134 | self.assertEqual(2, len(node.words))
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| 135 | self.assertEqual(2, len(node.more_env))
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| 136 |
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| 137 | def testMultipleGlobalShAssignments(self):
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| 138 | node = assert_ParseCommandList(self, 'ONE=1 TWO=2')
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| 139 | self.assertEqual(command_e.ShAssignment, node.tag())
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| 140 | self.assertEqual(2, len(node.pairs))
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| 141 |
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| 142 | def testOnlyRedirect(self):
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| 143 | # This just touches the file
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| 144 | node = assert_ParseCommandList(self, '>out.txt')
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| 145 | self.assertEqual(command_e.Redirect, node.tag())
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| 146 | self.assertEqual(1, len(node.redirects))
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| 147 |
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| 148 | self.assertEqual(command_e.NoOp, node.child.tag())
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| 149 |
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| 150 | def testParseRedirectInTheMiddle(self):
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| 151 | node = assert_ParseCommandList(self, 'echo >out.txt 1 2 3')
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| 152 | self.assertEqual(command_e.Simple, node.tag())
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| 153 | self.assertEqual(1, len(node.redirects))
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| 154 | self.assertEqual(4, len(node.words))
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| 155 |
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| 156 | def testParseRedirectBeforeShAssignment(self):
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| 157 | # Write ENV to a file
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| 158 | node = assert_ParseCommandList(self, '>out.txt PYTHONPATH=. env')
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| 159 | self.assertEqual(command_e.Simple, node.tag())
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| 160 | self.assertEqual(1, len(node.redirects))
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| 161 | self.assertEqual(1, len(node.words))
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| 162 | self.assertEqual(1, len(node.more_env))
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| 163 |
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| 164 | def testParseAdjacentDoubleQuotedWords(self):
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| 165 | node = assertParseSimpleCommand(self,
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| 166 | 'echo "one"two "three""four" five')
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| 167 | self.assertEqual(4, len(node.words))
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| 168 |
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| 169 |
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| 170 | class OldStaticParsing(object):
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| 171 |
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| 172 | def testRedirectsInShAssignment(self):
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| 173 | err = _assert_ParseCommandListError(self, 'x=1 >/dev/null')
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| 174 | err = _assert_ParseCommandListError(self, 'echo hi; x=1 >/dev/null')
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| 175 | err = _assert_ParseCommandListError(self, 'declare x=1 >/dev/null')
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| 176 |
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| 177 | def testParseShAssignment(self):
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| 178 | node = assert_ParseCommandList(self, 'local foo=bar spam eggs one=1')
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| 179 | self.assertEqual(4, len(node.pairs))
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| 180 |
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| 181 | node = assert_ParseCommandList(self, 'foo=bar')
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| 182 | self.assertEqual(1, len(node.pairs))
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| 183 |
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| 184 | # This is not valid since env isn't respected
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| 185 | assertFailCommandList(self, 'FOO=bar local foo=$(env)')
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| 186 |
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| 187 | def testExport(self):
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| 188 | # This is the old static parsing. Probably need to revisit.
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| 189 | return
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| 190 | node = assert_ParseCommandList(self, 'export ONE=1 TWO=2 THREE')
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| 191 | self.assertEqual(command_e.ShAssignment, node.tag())
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| 192 | self.assertEqual(3, len(node.pairs))
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| 193 |
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| 194 | def testReadonly(self):
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| 195 | return
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| 196 | node = assert_ParseCommandList(self, 'readonly ONE=1 TWO=2 THREE')
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| 197 | self.assertEqual(command_e.ShAssignment, node.tag())
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| 198 | self.assertEqual(3, len(node.pairs))
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| 199 |
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| 200 |
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| 201 | def assertHereDocToken(test, expected_token_val, node):
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| 202 | """A sanity check for some ad hoc tests."""
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| 203 | test.assertEqual(1, len(node.redirects))
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| 204 | h = node.redirects[0].arg
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| 205 | test.assertEqual(expected_token_val, lexer.LazyStr(h.stdin_parts[0]))
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| 206 |
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| 207 |
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| 208 | class HereDocTest(unittest.TestCase):
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| 209 | """NOTE: These ares come from tests/09-here-doc.sh, but add assertions."""
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| 210 |
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| 211 | def testUnquotedHereDoc(self):
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| 212 | # Unquoted here docs use the double quoted context.
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| 213 | node = assert_ParseCommandLine(self, """\
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| 214 | cat <<EOF
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| 215 | $v
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| 216 | "two
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| 217 | EOF
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| 218 | """)
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| 219 | self.assertEqual(1, len(node.redirects))
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| 220 | h = node.redirects[0].arg
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| 221 | # 4 literal parts: VarSub, newline, right ", "two\n"
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| 222 | self.assertEqual(4, len(h.stdin_parts))
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| 223 |
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| 224 | def testQuotedHereDocs(self):
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| 225 | # Quoted here doc
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| 226 | node = assert_ParseCommandLine(self, """\
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| 227 | cat <<"EOF"
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| 228 | $v
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| 229 | "two
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| 230 | EOF
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| 231 | """)
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| 232 | self.assertEqual(1, len(node.redirects))
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| 233 | h = node.redirects[0].arg
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| 234 | self.assertEqual(2, len(h.stdin_parts)) # 2 literal parts
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| 235 |
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| 236 | node = assert_ParseCommandLine(
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| 237 | self, """\
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| 238 | cat <<'EOF'
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| 239 | single-quoted: $var
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| 240 | EOF
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| 241 | """)
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| 242 | self.assertEqual(1, len(node.redirects))
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| 243 | h = node.redirects[0].arg
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| 244 | self.assertEqual(1, len(h.stdin_parts)) # 1 line, one literal part
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| 245 |
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| 246 | # \ escape
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| 247 | node = assert_ParseCommandLine(
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| 248 | self, r"""\
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| 249 | cat <<EO\F
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| 250 | single-quoted: $var
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| 251 | EOF
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| 252 | """)
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| 253 | self.assertEqual(1, len(node.redirects))
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| 254 | h = node.redirects[0].arg
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| 255 | self.assertEqual(1, len(h.stdin_parts)) # 1 line, one literal part
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| 256 |
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| 257 | def testLeadingTabs(self):
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| 258 | node = assert_ParseCommandLine(
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| 259 | self, """\
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| 260 | \tcat <<-EOF
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| 261 | \tone tab then foo: $foo
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| 262 | \tEOF
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| 263 | echo hi
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| 264 | """)
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| 265 | self.assertEqual(node.tag(), command_e.Simple)
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| 266 | assertHereDocToken(self, 'one tab then foo: ', node)
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| 267 |
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| 268 | def testHereDocInPipeline(self):
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| 269 | # Pipe and command on SAME LINE
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| 270 | node = assert_ParseCommandLine(
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| 271 | self, """\
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| 272 | cat <<EOF | tac
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| 273 | PIPE 1
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| 274 | PIPE 2
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| 275 | EOF
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| 276 | """)
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| 277 | self.assertEqual(2, len(node.children))
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| 278 | assertHereDocToken(self, 'PIPE 1\n', node.children[0])
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| 279 |
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| 280 | # Pipe command AFTER here doc
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| 281 | node = assert_ParseCommandLine(
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| 282 | self, """\
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| 283 | cat <<EOF |
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| 284 | PIPE 1
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| 285 | PIPE 2
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| 286 | EOF
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| 287 | tac
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| 288 | """)
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| 289 | self.assertEqual(2, len(node.children))
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| 290 | assertHereDocToken(self, 'PIPE 1\n', node.children[0])
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| 291 |
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| 292 | def testTwoHereDocsInPipeline(self):
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| 293 | # Pipeline with two here docs
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| 294 | node = assert_ParseCommandList(
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| 295 | self, """\
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| 296 | cat <<EOF1 | tac <<EOF2
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| 297 | PIPE A1
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| 298 | PIPE A2
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| 299 | EOF1
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| 300 | PIPE B1
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| 301 | PIPE B2
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| 302 | EOF2
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| 303 | """)
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| 304 | self.assertEqual(2, len(node.children))
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| 305 | assertHereDocToken(self, 'PIPE A1\n', node.children[0])
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| 306 | assertHereDocToken(self, 'PIPE B1\n', node.children[1])
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| 307 |
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| 308 | def testHereDocInAndOrChain(self):
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| 309 | # || command AFTER here doc
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| 310 | node = assert_ParseCommandLine(
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| 311 | self, """\
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| 312 | cat <<EOF ||
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| 313 | PIPE 1
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| 314 | PIPE 2
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| 315 | EOF
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| 316 | echo hi
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| 317 | """)
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| 318 | self.assertEqual(2, len(node.children))
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| 319 | assertHereDocToken(self, 'PIPE 1\n', node.children[0])
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| 320 |
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| 321 | # && and command on SAME LINE
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| 322 | node = assert_ParseCommandLine(
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| 323 | self, """\
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| 324 | cat <<EOF && echo hi
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| 325 | PIPE 1
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| 326 | PIPE 2
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| 327 | EOF
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| 328 | """)
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| 329 | self.assertEqual(2, len(node.children))
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| 330 | assertHereDocToken(self, 'PIPE 1\n', node.children[0])
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| 331 |
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| 332 | node = assert_ParseCommandLine(
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| 333 | self, """\
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| 334 | tac <<EOF1 && tac <<EOF2
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| 335 | PIPE A1
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| 336 | PIPE A2
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| 337 | EOF1
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| 338 | PIPE B1
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| 339 | PIPE B2
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| 340 | EOF2
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| 341 | echo
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| 342 | """)
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| 343 | self.assertEqual(2, len(node.children))
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| 344 | assertHereDocToken(self, 'PIPE A1\n', node.children[0])
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| 345 | assertHereDocToken(self, 'PIPE B1\n', node.children[1])
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| 346 |
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| 347 | def testHereDocInSequence(self):
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| 348 | # PROBLEM: _ParseCommandList vs _ParseCommandLine
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| 349 | # _ParseCommandLine only used interactively. _ParseCommandList is used by
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| 350 | # ParseFile.
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| 351 |
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| 352 | # command AFTER here doc
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| 353 | node = assert_ParseCommandList(
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| 354 | self, """\
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| 355 | cat <<EOF ;
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| 356 | PIPE 1
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| 357 | PIPE 2
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| 358 | EOF
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| 359 | echo hi
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| 360 | """)
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| 361 | self.assertEqual(node.tag(), command_e.CommandList)
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| 362 | self.assertEqual(2, len(node.children), repr(node))
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| 363 | assertHereDocToken(self, 'PIPE 1\n', node.children[0].child)
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| 364 |
|
| 365 | def testHereDocInSequence2(self):
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| 366 | # ; and command on SAME LINE
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| 367 | node = assert_ParseCommandList(
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| 368 | self, """\
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| 369 | cat <<EOF ; echo hi
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| 370 | PIPE 1
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| 371 | PIPE 2
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| 372 | EOF
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| 373 | """)
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| 374 | self.assertEqual(node.tag(), command_e.CommandList)
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| 375 | self.assertEqual(2, len(node.children))
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| 376 | assertHereDocToken(self, 'PIPE 1\n', node.children[0].child)
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| 377 |
|
| 378 | def testCommandSubInHereDoc(self):
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| 379 | node = assert_ParseCommandLine(
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| 380 | self, """\
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| 381 | cat <<EOF
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| 382 | 1 $(echo 2
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| 383 | echo 3) 4
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| 384 | EOF
|
| 385 | """)
|
| 386 | self.assertEqual(1, len(node.redirects))
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| 387 | self.assertEqual(1, len(node.words))
|
| 388 |
|
| 389 |
|
| 390 | class ArrayTest(unittest.TestCase):
|
| 391 |
|
| 392 | def testArrayLiteral(self):
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| 393 | # Empty array
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| 394 | node = assert_ParseCommandList(self, 'empty=()')
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| 395 | self.assertEqual(['empty'], [p.lhs.name for p in node.pairs])
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| 396 | self.assertEqual([], node.pairs[0].rhs.parts[0].pairs) # No words
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| 397 | self.assertEqual(command_e.ShAssignment, node.tag())
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| 398 |
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| 399 | # Array with 3 elements
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| 400 | node = assert_ParseCommandList(self, 'array=(a b c)')
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| 401 | self.assertEqual(['array'], [p.lhs.name for p in node.pairs])
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| 402 | self.assertEqual(3, len(node.pairs[0].rhs.parts[0].pairs))
|
| 403 | self.assertEqual(command_e.ShAssignment, node.tag())
|
| 404 |
|
| 405 | # Array literal can't come after word
|
| 406 | # Now caught at runtime
|
| 407 | #assertFailCommandList(self,
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| 408 | # 'ls array=(a b c)')
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| 409 |
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| 410 | # Word can't come after array literal
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| 411 | assertFailCommandList(self, 'array=(a b c) ls')
|
| 412 |
|
| 413 | # Two array literals
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| 414 | node = assert_ParseCommandList(self, 'array=(a b c); array2=(d e f)')
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| 415 | self.assertEqual(2, len(node.children))
|
| 416 | a2 = node.children[1]
|
| 417 | self.assertEqual(['array2'], [p.lhs.name for p in a2.pairs])
|
| 418 |
|
| 419 |
|
| 420 | class RedirectTest(unittest.TestCase):
|
| 421 |
|
| 422 | def testParseRedirects1(self):
|
| 423 | node = assertParseSimpleCommand(self, '>out.txt cat 1>&2')
|
| 424 | self.assertEqual(2, len(node.redirects))
|
| 425 | self.assertEqual(1, len(node.words))
|
| 426 |
|
| 427 | node = assertParseSimpleCommand(self, ' cat <&3')
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| 428 | self.assertEqual(1, len(node.redirects))
|
| 429 | self.assertEqual(1, len(node.words))
|
| 430 |
|
| 431 | def testParseFilenameRedirect(self):
|
| 432 | node = assertParseRedirect(self, '>out.txt cat')
|
| 433 |
|
| 434 | def testDescriptorRedirect(self):
|
| 435 | node = assertParseRedirect(self, '1>& 2 cat')
|
| 436 |
|
| 437 | def testHereDoc(self):
|
| 438 | node = assertParseRedirect(self, """\
|
| 439 | <<EOF cat
|
| 440 | hi
|
| 441 | EOF
|
| 442 | """)
|
| 443 |
|
| 444 | def testHereDocStrip(self):
|
| 445 | node = assertParseRedirect(self, """\
|
| 446 | <<-EOF cat
|
| 447 | hi
|
| 448 | EOF
|
| 449 | """)
|
| 450 |
|
| 451 | def testParseRedirectList(self):
|
| 452 | node = assertParseRedirect(self, """\
|
| 453 | <<EOF >out.txt cat
|
| 454 | hi
|
| 455 | EOF
|
| 456 | """)
|
| 457 |
|
| 458 | def testParseCommandWithLeadingRedirects(self):
|
| 459 | node = assertParseSimpleCommand(self, """\
|
| 460 | <<EOF >out.txt cat
|
| 461 | hi
|
| 462 | EOF
|
| 463 | """)
|
| 464 | self.assertEqual(2, len(node.redirects))
|
| 465 | self.assertEqual(1, len(node.words))
|
| 466 |
|
| 467 | def testClobberRedirect(self):
|
| 468 | node = assertParseSimpleCommand(self, 'echo hi >| clobbered.txt')
|
| 469 |
|
| 470 |
|
| 471 | class CommandParserTest(unittest.TestCase):
|
| 472 |
|
| 473 | def testParsePipeline(self):
|
| 474 | node = assertParsePipeline(self, 'ls foo')
|
| 475 | self.assertEqual(2, len(node.words))
|
| 476 |
|
| 477 | node = assertParsePipeline(self, 'ls foo|wc -l')
|
| 478 | self.assertEqual(2, len(node.children))
|
| 479 | self.assertEqual(command_e.Pipeline, node.tag())
|
| 480 |
|
| 481 | node = assertParsePipeline(self, '! echo foo | grep foo')
|
| 482 | self.assertEqual(2, len(node.children))
|
| 483 | self.assertEqual(command_e.Pipeline, node.tag())
|
| 484 | self.assertTrue(node.negated)
|
| 485 |
|
| 486 | node = assertParsePipeline(self, 'ls foo|wc -l|less')
|
| 487 | self.assertEqual(3, len(node.children))
|
| 488 | self.assertEqual(command_e.Pipeline, node.tag())
|
| 489 |
|
| 490 | _assertParseMethod(self,
|
| 491 | 'ls foo|',
|
| 492 | 'ParsePipeline',
|
| 493 | expect_success=False)
|
| 494 |
|
| 495 | def testParsePipelineBash(self):
|
| 496 | node = assert_ParseCommandList(self, 'ls | cat |& cat')
|
| 497 | self.assertEqual(command_e.Pipeline, node.tag())
|
| 498 | self.assertEqual(2, len(node.ops))
|
| 499 | self.assertEqual(Id.Op_Pipe, node.ops[0].id)
|
| 500 | self.assertEqual(Id.Op_PipeAmp, node.ops[1].id)
|
| 501 |
|
| 502 | node = assert_ParseCommandList(self, 'ls |& cat | cat')
|
| 503 | self.assertEqual(command_e.Pipeline, node.tag())
|
| 504 | self.assertEqual(2, len(node.ops))
|
| 505 | self.assertEqual(Id.Op_PipeAmp, node.ops[0].id)
|
| 506 | self.assertEqual(Id.Op_Pipe, node.ops[1].id)
|
| 507 |
|
| 508 | node = assert_ParseCommandList(self, 'ls |& cat |& cat')
|
| 509 | self.assertEqual(command_e.Pipeline, node.tag())
|
| 510 | self.assertEqual(2, len(node.ops))
|
| 511 | self.assertEqual(Id.Op_PipeAmp, node.ops[0].id)
|
| 512 | self.assertEqual(Id.Op_PipeAmp, node.ops[1].id)
|
| 513 |
|
| 514 | def testParseAndOr(self):
|
| 515 | node = assertParseAndOr(self, 'ls foo')
|
| 516 | self.assertEqual(2, len(node.words))
|
| 517 |
|
| 518 | node = assertParseAndOr(self, 'ls foo|wc -l')
|
| 519 | self.assertEqual(2, len(node.children))
|
| 520 | self.assertEqual(command_e.Pipeline, node.tag())
|
| 521 |
|
| 522 | node = assertParseAndOr(self, 'ls foo || die')
|
| 523 | self.assertEqual(2, len(node.children))
|
| 524 | self.assertEqual(command_e.AndOr, node.tag())
|
| 525 |
|
| 526 | node = assertParseAndOr(self, 'ls foo|wc -l || die')
|
| 527 | self.assertEqual(2, len(node.children))
|
| 528 | self.assertEqual(command_e.AndOr, node.tag())
|
| 529 |
|
| 530 | def testParseCommand(self):
|
| 531 | c_parser = test_lib.InitCommandParser('ls foo')
|
| 532 | node = c_parser.ParseCommand()
|
| 533 | self.assertEqual(2, len(node.words))
|
| 534 | print(node)
|
| 535 |
|
| 536 | c_parser = test_lib.InitCommandParser('fun() { echo hi; }')
|
| 537 | node = c_parser.ParseCommand()
|
| 538 | print(node)
|
| 539 | self.assertEqual(command_e.ShFunction, node.tag())
|
| 540 |
|
| 541 | def test_ParseCommandLine(self):
|
| 542 | node = assert_ParseCommandLine(self, 'ls foo 2>/dev/null')
|
| 543 | self.assertEqual(2, len(node.words))
|
| 544 |
|
| 545 | node = assert_ParseCommandLine(self, 'ls foo|wc -l')
|
| 546 | self.assertEqual(command_e.Pipeline, node.tag())
|
| 547 |
|
| 548 | node = assert_ParseCommandLine(self, 'ls foo|wc -l || die')
|
| 549 | self.assertEqual(command_e.AndOr, node.tag())
|
| 550 |
|
| 551 | node = assert_ParseCommandLine(self, 'ls foo|wc -l || die; ls /')
|
| 552 | self.assertEqual(command_e.CommandList, node.tag())
|
| 553 | self.assertEqual(2, len(node.children)) # two top level things
|
| 554 |
|
| 555 | def test_ParseCommandList(self):
|
| 556 | node = assert_ParseCommandList(self, 'ls foo')
|
| 557 | self.assertEqual(2, len(node.words))
|
| 558 |
|
| 559 | node = assert_ParseCommandList(self, 'ls foo|wc -l || die; ls /')
|
| 560 | self.assertEqual(command_e.CommandList, node.tag())
|
| 561 | self.assertEqual(2, len(node.children))
|
| 562 |
|
| 563 | node = assert_ParseCommandList(
|
| 564 | self, """\
|
| 565 | ls foo | wc -l || echo fail ;
|
| 566 | echo bar | wc -c || echo f2
|
| 567 | """)
|
| 568 | self.assertEqual(command_e.CommandList, node.tag())
|
| 569 | self.assertEqual(2, len(node.children))
|
| 570 |
|
| 571 | # TODO: Check that we get (LIST (AND_OR (PIPELINE (COMMAND ...)))) here.
|
| 572 | # We want all levels.
|
| 573 |
|
| 574 | def testParseCase(self):
|
| 575 | # Empty case
|
| 576 | node = assert_ParseCommandLine(self, """\
|
| 577 | case foo in
|
| 578 | esac
|
| 579 | """)
|
| 580 | self.assertEqual(command_e.Case, node.tag())
|
| 581 | self.assertEqual(0, len(node.arms))
|
| 582 |
|
| 583 | # TODO: Test all these. Probably need to add newlines too.
|
| 584 | # case foo esac # INVALID
|
| 585 | # case foo in esac
|
| 586 | # case foo in foo) esac
|
| 587 | # case foo in foo) ;; esac
|
| 588 | # case foo in foo) echo hi ;; esac
|
| 589 | # case foo in foo) echo hi; ;; esac
|
| 590 |
|
| 591 | node = assert_ParseCommandLine(
|
| 592 | self, """\
|
| 593 | case word in
|
| 594 | foo|foo2|foo3) echo hi ;;
|
| 595 | esac
|
| 596 | """)
|
| 597 | self.assertEqual(command_e.Case, node.tag())
|
| 598 | self.assertEqual(1, len(node.arms))
|
| 599 |
|
| 600 | node = assert_ParseCommandLine(
|
| 601 | self, """\
|
| 602 | case word in foo) echo one-line ;; esac
|
| 603 | """)
|
| 604 | self.assertEqual(command_e.Case, node.tag())
|
| 605 | self.assertEqual(1, len(node.arms))
|
| 606 |
|
| 607 | node = assert_ParseCommandLine(
|
| 608 | self, """\
|
| 609 | case word in
|
| 610 | foo) echo foo ;;
|
| 611 | bar) echo bar ;;
|
| 612 | esac
|
| 613 | """)
|
| 614 | self.assertEqual(command_e.Case, node.tag())
|
| 615 | self.assertEqual(2, len(node.arms))
|
| 616 |
|
| 617 | node = assert_ParseCommandLine(
|
| 618 | self, """\
|
| 619 | case word in
|
| 620 | foo) echo foo ;; # NO TRAILING ;; but trailing ;
|
| 621 | bar) echo bar ;
|
| 622 | esac
|
| 623 | """)
|
| 624 | self.assertEqual(command_e.Case, node.tag())
|
| 625 | self.assertEqual(2, len(node.arms))
|
| 626 |
|
| 627 | node = assert_ParseCommandLine(
|
| 628 | self, """\
|
| 629 | case word in
|
| 630 | foo) echo foo ;; # NO TRAILING ;;
|
| 631 | bar) echo bar
|
| 632 | esac
|
| 633 | """)
|
| 634 | self.assertEqual(command_e.Case, node.tag())
|
| 635 | self.assertEqual(2, len(node.arms))
|
| 636 |
|
| 637 | def testParseYshCase(self):
|
| 638 | # Empty case
|
| 639 | node = assert_ParseCommandLine(self, """\
|
| 640 | case (x) {
|
| 641 | }
|
| 642 | """)
|
| 643 | self.assertEqual(command_e.Case, node.tag())
|
| 644 | self.assertEqual(0, len(node.arms))
|
| 645 |
|
| 646 | node = assert_ParseCommandLine(
|
| 647 | self, """\
|
| 648 | case (x) {
|
| 649 | (else) { echo hi; }
|
| 650 | }
|
| 651 | """)
|
| 652 | self.assertEqual(command_e.Case, node.tag())
|
| 653 | self.assertEqual(1, len(node.arms))
|
| 654 | self.assertEqual(pat_e.Else, node.arms[0].pattern.tag())
|
| 655 |
|
| 656 | node = assert_ParseCommandLine(
|
| 657 | self, """\
|
| 658 | case (x) {
|
| 659 | (2) | (3) { echo hi; }
|
| 660 | }
|
| 661 | """)
|
| 662 | self.assertEqual(command_e.Case, node.tag())
|
| 663 | self.assertEqual(1, len(node.arms))
|
| 664 | pattern = node.arms[0].pattern
|
| 665 | self.assertEqual(pat_e.YshExprs, pattern.tag())
|
| 666 |
|
| 667 | self.assertEqual(2, len(pattern.exprs))
|
| 668 |
|
| 669 | node = assert_ParseCommandLine(
|
| 670 | self, """\
|
| 671 | case (x) {
|
| 672 | bare | x | 'string' { echo hi; }
|
| 673 | }
|
| 674 | """)
|
| 675 | self.assertEqual(command_e.Case, node.tag())
|
| 676 | self.assertEqual(1, len(node.arms))
|
| 677 | pattern = node.arms[0].pattern
|
| 678 | self.assertEqual(pat_e.Words, pattern.tag())
|
| 679 | self.assertEqual(3, len(pattern.words))
|
| 680 |
|
| 681 | node = assert_ParseCommandLine(
|
| 682 | self, """\
|
| 683 | case (x) {
|
| 684 | / d+ / { echo space; }
|
| 685 | /d+/ { echo space2; }
|
| 686 | }
|
| 687 | """)
|
| 688 | self.assertEqual(command_e.Case, node.tag())
|
| 689 | self.assertEqual(2, len(node.arms))
|
| 690 |
|
| 691 | pattern0 = node.arms[0].pattern
|
| 692 | self.assertEqual(pat_e.Eggex, pattern0.tag())
|
| 693 |
|
| 694 | pattern1 = node.arms[1].pattern
|
| 695 | self.assertEqual(pat_e.Eggex, pattern1.tag())
|
| 696 |
|
| 697 | node = assert_ParseCommandLine(self, """\
|
| 698 | case (x) {
|
| 699 | word { = x }
|
| 700 | }
|
| 701 | """)
|
| 702 | self.assertEqual(command_e.Case, node.tag())
|
| 703 | self.assertEqual(1, len(node.arms))
|
| 704 |
|
| 705 | arm = node.arms[0]
|
| 706 | self.assertEqual(Id.Lit_Chars, arm.left.id)
|
| 707 |
|
| 708 | node = assert_ParseCommandLine(
|
| 709 | self, """\
|
| 710 | case (x) {
|
| 711 | /'eggex'/ { = x }
|
| 712 | }
|
| 713 | """)
|
| 714 | self.assertEqual(command_e.Case, node.tag())
|
| 715 | self.assertEqual(1, len(node.arms))
|
| 716 |
|
| 717 | arm = node.arms[0]
|
| 718 | self.assertEqual(Id.Arith_Slash, arm.left.id)
|
| 719 |
|
| 720 | node = assert_ParseCommandLine(
|
| 721 | self, """\
|
| 722 | case (x) {
|
| 723 | ('expr') { = x }
|
| 724 | }
|
| 725 | """)
|
| 726 | self.assertEqual(command_e.Case, node.tag())
|
| 727 | self.assertEqual(1, len(node.arms))
|
| 728 |
|
| 729 | arm = node.arms[0]
|
| 730 | self.assertEqual(Id.Op_LParen, arm.left.id)
|
| 731 |
|
| 732 | node = assert_ParseCommandLine(self, """\
|
| 733 | case (x) {
|
| 734 | (else) { = x }
|
| 735 | }
|
| 736 | """)
|
| 737 | self.assertEqual(command_e.Case, node.tag())
|
| 738 | self.assertEqual(1, len(node.arms))
|
| 739 |
|
| 740 | arm = node.arms[0]
|
| 741 | self.assertEqual(Id.Op_LParen, arm.left.id)
|
| 742 |
|
| 743 | def testParseWhile(self):
|
| 744 | node = assert_ParseCommandList(
|
| 745 | self, """\
|
| 746 | while true; do
|
| 747 | echo hi
|
| 748 | break
|
| 749 | done
|
| 750 | """)
|
| 751 |
|
| 752 | node = assert_ParseCommandList(
|
| 753 | self, """\
|
| 754 | while true # comment
|
| 755 | do # comment
|
| 756 | echo hi # comment
|
| 757 | break # comment
|
| 758 | done # comment
|
| 759 | """)
|
| 760 |
|
| 761 | def testParseUntil(self):
|
| 762 | node = assert_ParseCommandList(
|
| 763 | self, """\
|
| 764 | until false; do
|
| 765 | echo hi
|
| 766 | break
|
| 767 | done
|
| 768 | """)
|
| 769 |
|
| 770 | def testParseFor(self):
|
| 771 | node = assert_ParseCommandList(
|
| 772 | self, """\
|
| 773 | for i in 1 2 3; do
|
| 774 | echo $i
|
| 775 | done
|
| 776 | """)
|
| 777 | self.assertEqual(3, len(node.iterable.words))
|
| 778 |
|
| 779 | # Don't iterate over anything!
|
| 780 | node = assert_ParseCommandList(self, """\
|
| 781 | for i in ; do
|
| 782 | echo $i
|
| 783 | done
|
| 784 | """)
|
| 785 | self.assertEqual(0, len(node.iterable.words))
|
| 786 |
|
| 787 | # Iterate over the default
|
| 788 | node = assert_ParseCommandList(self, """\
|
| 789 | for i; do echo $i; done
|
| 790 | """)
|
| 791 | self.assertEqual(for_iter_e.Args, node.iterable.tag())
|
| 792 |
|
| 793 | # Iterate over the default, over multiple lines
|
| 794 | node = assert_ParseCommandList(self, """\
|
| 795 | for i
|
| 796 | do
|
| 797 | echo $i
|
| 798 | done
|
| 799 | """)
|
| 800 | self.assertEqual(for_iter_e.Args, node.iterable.tag())
|
| 801 |
|
| 802 | def testParseForExpression(self):
|
| 803 | node = assert_ParseCommandList(
|
| 804 | self, """\
|
| 805 | for ((i=0; i<5; ++i)); do
|
| 806 | echo $i
|
| 807 | done
|
| 808 | """)
|
| 809 | self.assertEqual(Id.Arith_Equal, node.init.op_id)
|
| 810 | self.assertEqual(Id.Arith_Less, node.cond.op.id)
|
| 811 | self.assertEqual(Id.Arith_DPlus, node.update.op_id)
|
| 812 | self.assertEqual(command_e.DoGroup, node.body.tag())
|
| 813 |
|
| 814 | # Now without the ; OR a newline
|
| 815 | node = assert_ParseCommandList(
|
| 816 | self, """\
|
| 817 | for ((i=0; i<5; ++i)) do
|
| 818 | echo $i
|
| 819 | done
|
| 820 | """)
|
| 821 | self.assertEqual(Id.Arith_Equal, node.init.op_id)
|
| 822 | self.assertEqual(Id.Arith_Less, node.cond.op.id)
|
| 823 | self.assertEqual(Id.Arith_DPlus, node.update.op_id)
|
| 824 | self.assertEqual(command_e.DoGroup, node.body.tag())
|
| 825 |
|
| 826 | node = assert_ParseCommandList(self, """\
|
| 827 | for ((;;)); do
|
| 828 | echo $i
|
| 829 | done
|
| 830 | """)
|
| 831 | self.assertEqual(command_e.DoGroup, node.body.tag())
|
| 832 |
|
| 833 | def testParseCommandSub(self):
|
| 834 | # Two adjacent command subs
|
| 835 | node = assertParseSimpleCommand(self, 'echo $(echo 12)$(echo 34)')
|
| 836 | self.assertEqual(2, len(node.words))
|
| 837 |
|
| 838 | # Two adjacent command subs, quoted
|
| 839 | node = assertParseSimpleCommand(self, 'echo "$(echo 12)$(echo 34)"')
|
| 840 | self.assertEqual(2, len(node.words))
|
| 841 |
|
| 842 | def testParseTildeSub(self):
|
| 843 | node = assert_ParseCommandList(
|
| 844 | self,
|
| 845 | "ls ~ ~root ~/src ~/src/foo ~root/src ~weird!name/blah!blah ")
|
| 846 |
|
| 847 | def testParseDBracket(self):
|
| 848 | node = assert_ParseCommandList(self, '[[ $# -gt 1 ]]')
|
| 849 |
|
| 850 | # Bash allows embedded newlines in some places, but not all
|
| 851 | node = assert_ParseCommandList(self, """\
|
| 852 | [[ $# -gt 1 &&
|
| 853 |
|
| 854 | foo ]]""")
|
| 855 |
|
| 856 | # Newline needs to be Id.Op_Newline!
|
| 857 | node = assert_ParseCommandList(
|
| 858 | self, """\
|
| 859 | if [[ $# -gt 1 ]]
|
| 860 | then
|
| 861 | echo hi
|
| 862 | fi
|
| 863 | """)
|
| 864 |
|
| 865 | # Doh, technically this works!
|
| 866 | # [[ =~ =~ =~ ]]; echo $?
|
| 867 | # 0
|
| 868 |
|
| 869 | def testParseDParen(self):
|
| 870 | node = assert_ParseCommandList(self, '(( 1 + 2 ))')
|
| 871 |
|
| 872 | def testParseDBracketRegex(self):
|
| 873 | node = assert_ParseCommandList(self, '[[ foo =~ foo ]]')
|
| 874 | self.assertEqual(Id.BoolBinary_EqualTilde, node.expr.op_id)
|
| 875 |
|
| 876 | node = assert_ParseCommandList(self, '[[ foo =~ (foo|bar) ]]')
|
| 877 | self.assertEqual(Id.BoolBinary_EqualTilde, node.expr.op_id)
|
| 878 | right = node.expr.right
|
| 879 | self.assertEqual(1, len(right.parts))
|
| 880 |
|
| 881 | def testParseIf(self):
|
| 882 | node = assert_ParseCommandList(self, 'if true; then echo yes; fi')
|
| 883 | # Subshell in condition
|
| 884 | node = assert_ParseCommandList(self, 'if (true); then echo yes; fi')
|
| 885 |
|
| 886 | def testParseFunction(self):
|
| 887 | node = assert_ParseCommandList(self, 'foo() { echo hi; }')
|
| 888 |
|
| 889 | node = assert_ParseCommandList(self, 'foo() ( echo hi )')
|
| 890 | node = assert_ParseCommandList(self,
|
| 891 | 'foo() for i in x; do echo $i; done')
|
| 892 |
|
| 893 | # KSH FUNCTION
|
| 894 | node = assert_ParseCommandList(self, 'function foo { echo hi; }')
|
| 895 | node = assert_ParseCommandList(self, 'function foo () { echo hi; }')
|
| 896 |
|
| 897 | node = assert_ParseCommandList(self, 'function foo() ( echo hi )')
|
| 898 | node = assert_ParseCommandList(
|
| 899 | self, 'function foo() for i in x; do echo $i; done')
|
| 900 |
|
| 901 | # No () is OK here!
|
| 902 | node = assert_ParseCommandList(
|
| 903 | self, 'function foo for i in x; do echo $i; done')
|
| 904 |
|
| 905 | # Redirects
|
| 906 | node = assert_ParseCommandList(self,
|
| 907 | 'foo() { echo hi; } 1>&2 2>/dev/null')
|
| 908 | self.assertEqual(command_e.Redirect, node.body.tag())
|
| 909 | self.assertEqual(2, len(node.body.redirects))
|
| 910 |
|
| 911 | def testParseKeyword(self):
|
| 912 | # NOTE: It chooses the longest match, which is Lit_Chars>
|
| 913 | node = assert_ParseCommandList(self, 'ifFOO')
|
| 914 |
|
| 915 |
|
| 916 | class NestedParensTest(unittest.TestCase):
|
| 917 | """Test the hard $() and () nesting.
|
| 918 |
|
| 919 | Meanings of ):
|
| 920 |
|
| 921 | ( echo x ) # subshell (cmd_parse)
|
| 922 | echo $(echo x) # command substitution (word_parse)
|
| 923 | (( )) # end arith command (cmd_parse)
|
| 924 | $(( )) # end arith sub (word_parse))
|
| 925 | a=(1 2 3) # array literal and assoc array literal
|
| 926 | a[1*(2+3)]=x # grouping in arith context
|
| 927 | fun() { echo x ; } # function def
|
| 928 |
|
| 929 | case x in x) echo x ;; esac # case, with balanced or unbalanced
|
| 930 | case x in (x) echo x ;; esac
|
| 931 | """
|
| 932 |
|
| 933 | def testParseSubshell(self):
|
| 934 | node = assert_ParseCommandLine(self, '(cd /; echo PWD 1); echo PWD 2')
|
| 935 | self.assertEqual(2, len(node.children))
|
| 936 | self.assertEqual(command_e.CommandList, node.tag())
|
| 937 |
|
| 938 | def testParseBraceGroup(self):
|
| 939 | node = assert_ParseCommandLine(self, '{ cd /; echo PWD; }')
|
| 940 | self.assertEqual(2, len(node.children))
|
| 941 | self.assertEqual(command_e.BraceGroup, node.tag())
|
| 942 |
|
| 943 | node = assert_ParseCommandLine(self, '{ cd /; echo PWD; }; echo PWD')
|
| 944 | self.assertEqual(2, len(node.children))
|
| 945 | self.assertEqual(command_e.CommandList, node.tag())
|
| 946 |
|
| 947 | def testUnquotedComSub(self):
|
| 948 | # CommandSub with two Literal instances surrounding it
|
| 949 | node = assertParseSimpleCommand(self, 'echo ab$(echo hi)cd ef')
|
| 950 | self.assertEqual(3, len(node.words))
|
| 951 |
|
| 952 | def testNestedComSub(self):
|
| 953 | node = assertParseSimpleCommand(self,
|
| 954 | 'echo $(one$(echo two)one) three')
|
| 955 | self.assertEqual(3, len(node.words))
|
| 956 |
|
| 957 | def testArithSubWithin(self):
|
| 958 | # Within com sub
|
| 959 | node = assertParseSimpleCommand(self, 'echo $(echo $((1+2)))')
|
| 960 | self.assertEqual(command_e.Simple, node.tag())
|
| 961 | self.assertEqual(2, len(node.words))
|
| 962 |
|
| 963 | # Within subshell
|
| 964 | node = assert_ParseCommandList(self, '(echo $((1+2)))')
|
| 965 | self.assertEqual(command_e.Subshell, node.tag())
|
| 966 | self.assertEqual(command_e.Simple, node.child.tag())
|
| 967 |
|
| 968 | def testArithGroupingWithin(self):
|
| 969 | # Within com sub
|
| 970 | node = assertParseSimpleCommand(self, 'echo $(echo $((1*(2+3))) )')
|
| 971 | self.assertEqual(command_e.Simple, node.tag())
|
| 972 | self.assertEqual(2, len(node.words))
|
| 973 |
|
| 974 | # Within subshell
|
| 975 | node = assert_ParseCommandList(self, '(echo $((1*(2+3))) )')
|
| 976 | self.assertEqual(command_e.Subshell, node.tag())
|
| 977 | self.assertEqual(command_e.Simple, node.child.tag())
|
| 978 |
|
| 979 | def testLhsArithGroupingWithin(self):
|
| 980 | # Within Arith sub
|
| 981 | node = assertParseSimpleCommand(self, 'echo $((a[1*(2+3)]=x))')
|
| 982 | self.assertEqual(2, len(node.words))
|
| 983 |
|
| 984 | # Within Command Sub -- NOT IMPLEMENTED
|
| 985 | return
|
| 986 | node = assertParseSimpleCommand(self, 'echo $(a[1*(2+3)]=x)')
|
| 987 | self.assertEqual(2, len(node.words))
|
| 988 |
|
| 989 | def testShFunctionWithin(self):
|
| 990 | node = assert_ParseCommandList(self, 'echo $(fun() { echo hi; }; fun)')
|
| 991 | self.assertEqual(command_e.Simple, node.tag())
|
| 992 | self.assertEqual(2, len(node.words))
|
| 993 |
|
| 994 | node = assert_ParseCommandList(self, '(fun() { echo hi; }; fun)')
|
| 995 | self.assertEqual(command_e.Subshell, node.tag())
|
| 996 | self.assertEqual(command_e.CommandList, node.child.tag())
|
| 997 |
|
| 998 | def testArrayLiteralWithin(self):
|
| 999 | node = assert_ParseCommandList(self, 'echo $(array=(a b c))')
|
| 1000 | self.assertEqual(command_e.Simple, node.tag())
|
| 1001 | self.assertEqual(2, len(node.words))
|
| 1002 |
|
| 1003 | node = assert_ParseCommandList(self, '(array=(a b c))')
|
| 1004 | self.assertEqual(command_e.Subshell, node.tag())
|
| 1005 | self.assertEqual(command_e.ShAssignment, node.child.tag())
|
| 1006 |
|
| 1007 | def testSubshellWithinComSub(self):
|
| 1008 | node = assert_ParseCommandList(
|
| 1009 | self,
|
| 1010 | 'echo one; echo $( (cd /; echo subshell_PWD); echo comsub_PWD); echo two'
|
| 1011 | )
|
| 1012 | self.assertEqual(command_e.CommandList, node.tag())
|
| 1013 | self.assertEqual(3, len(node.children)) # 3 echo statements
|
| 1014 |
|
| 1015 | # TODO: Need a way to test the literal value of a word
|
| 1016 | #words = [w.UnquotedLiteralValue() for w in node.children[2].words]
|
| 1017 | #print(words)
|
| 1018 |
|
| 1019 | def testCaseWithinComSub(self):
|
| 1020 | node = assert_ParseCommandList(
|
| 1021 | self, 'echo $( case foo in one) echo comsub ;; esac)')
|
| 1022 | self.assertEqual(2, len(node.words))
|
| 1023 |
|
| 1024 | node = assert_ParseCommandList(
|
| 1025 | self, """\
|
| 1026 | echo $(
|
| 1027 | case foo in one) echo comsub1 ;; esac
|
| 1028 | case bar in two) echo comsub2 ;; esac
|
| 1029 | )
|
| 1030 | """)
|
| 1031 | self.assertEqual(2, len(node.words))
|
| 1032 |
|
| 1033 | def testComsubWithinCaseWithinComSub(self):
|
| 1034 | # Comsub within case within comsub
|
| 1035 | node = assert_ParseCommandList(
|
| 1036 | self,
|
| 1037 | 'echo one; echo $( case one in $(echo one)) echo $(comsub) ;; esac ); echo two'
|
| 1038 | )
|
| 1039 | self.assertEqual(command_e.CommandList, node.tag())
|
| 1040 | # Top level should have 3 echo statements
|
| 1041 | self.assertEqual(3, len(node.children))
|
| 1042 |
|
| 1043 | def testComSubWithinDoubleQuotes(self):
|
| 1044 | # CommandSub with two Literal instances surrounding it
|
| 1045 | node = assertParseSimpleCommand(self,
|
| 1046 | 'echo "double $(echo hi) quoted" two')
|
| 1047 | self.assertEqual(3, len(node.words))
|
| 1048 |
|
| 1049 | def testEmptyCaseWithinSubshell(self):
|
| 1050 | node = assert_ParseCommandList(self, """\
|
| 1051 | ( case foo in
|
| 1052 | esac
|
| 1053 | )
|
| 1054 | """)
|
| 1055 | self.assertEqual(command_e.Subshell, node.tag())
|
| 1056 |
|
| 1057 | def testBalancedCaseWithin(self):
|
| 1058 | # With leading ( in case. This one doesn't cause problems! We don't need
|
| 1059 | # the MaybeUnreadOne() lexer hack.
|
| 1060 | node = assert_ParseCommandList(
|
| 1061 | self, """\
|
| 1062 | $( case foo in
|
| 1063 | (one) echo hi ;;
|
| 1064 | esac
|
| 1065 | )
|
| 1066 | """)
|
| 1067 | self.assertEqual(command_e.Simple, node.tag())
|
| 1068 |
|
| 1069 | node = assert_ParseCommandList(
|
| 1070 | self, """\
|
| 1071 | ( case foo in
|
| 1072 | (one) echo hi ;;
|
| 1073 | esac
|
| 1074 | )
|
| 1075 | """)
|
| 1076 | self.assertEqual(command_e.Subshell, node.tag())
|
| 1077 |
|
| 1078 | def testUnbalancedCaseWithin(self):
|
| 1079 | # With leading ( in case. This one doesn't cause problems! We don't need
|
| 1080 | # the MaybeUnreadOne() lexer hack.
|
| 1081 | node = assert_ParseCommandList(
|
| 1082 | self, """\
|
| 1083 | $( case foo in
|
| 1084 | one) echo hi ;;
|
| 1085 | esac
|
| 1086 | )
|
| 1087 | """)
|
| 1088 | self.assertEqual(command_e.Simple, node.tag())
|
| 1089 |
|
| 1090 | node = assert_ParseCommandList(
|
| 1091 | self, """\
|
| 1092 | ( case foo in
|
| 1093 | one) echo hi ;;
|
| 1094 | esac
|
| 1095 | )
|
| 1096 | """)
|
| 1097 | self.assertEqual(command_e.Subshell, node.tag())
|
| 1098 |
|
| 1099 | def testForExpressionWithin(self):
|
| 1100 | # With leading ( in case. This one doesn't cause problems! We don't need
|
| 1101 | # the MaybeUnreadOne() lexer hack.
|
| 1102 | node = assert_ParseCommandList(
|
| 1103 | self, """\
|
| 1104 | $( for ((i=0; i<3; ++i)); do
|
| 1105 | echo hi
|
| 1106 | done
|
| 1107 | )
|
| 1108 | """)
|
| 1109 | self.assertEqual(command_e.Simple, node.tag())
|
| 1110 |
|
| 1111 | node = assert_ParseCommandList(
|
| 1112 | self, """\
|
| 1113 | ( for ((i=0; i<3; ++i)); do
|
| 1114 | echo hi
|
| 1115 | done
|
| 1116 | )
|
| 1117 | """)
|
| 1118 | self.assertEqual(command_e.Subshell, node.tag())
|
| 1119 |
|
| 1120 |
|
| 1121 | class RealBugsTest(unittest.TestCase):
|
| 1122 |
|
| 1123 | def testGitBug(self):
|
| 1124 | # Original bug from git codebase. Case in subshell.
|
| 1125 | node = assert_ParseCommandList(
|
| 1126 | self, """\
|
| 1127 | ( cd "$PACKDIR" &&
|
| 1128 | for e in $existing
|
| 1129 | do
|
| 1130 | case " $fullbases " in
|
| 1131 | *" $e "*) ;;
|
| 1132 | *) rm -f "$e.pack" "$e.idx" "$e.keep" ;;
|
| 1133 | esac
|
| 1134 | done
|
| 1135 | )
|
| 1136 | """)
|
| 1137 | self.assertEqual(command_e.Subshell, node.tag())
|
| 1138 |
|
| 1139 | def testParseCase3(self):
|
| 1140 | # Bug from git codebase. NOT a comment token.
|
| 1141 | node = assert_ParseCommandLine(
|
| 1142 | self, """\
|
| 1143 | case "$fd,$command" in
|
| 1144 | 3,#*|3,)
|
| 1145 | # copy comments
|
| 1146 | ;;
|
| 1147 | esac
|
| 1148 | """)
|
| 1149 | self.assertEqual(command_e.Case, node.tag())
|
| 1150 |
|
| 1151 | def testGitComment(self):
|
| 1152 | # ;# is a comment! Gah.
|
| 1153 | # Conclusion: Comments are NOT LEXICAL. They are part of word parsing.
|
| 1154 |
|
| 1155 | node = assert_ParseCommandList(
|
| 1156 | self, """\
|
| 1157 | . "$TEST_DIRECTORY"/diff-lib.sh ;# test-lib chdir's into trash
|
| 1158 | """)
|
| 1159 | self.assertEqual(command_e.Sentence, node.tag())
|
| 1160 | self.assertEqual(2, len(node.child.words))
|
| 1161 |
|
| 1162 | # This is NOT a comment
|
| 1163 | node = assert_ParseCommandList(self, """\
|
| 1164 | echo foo#bar
|
| 1165 | """)
|
| 1166 | self.assertEqual(command_e.Simple, node.tag())
|
| 1167 | self.assertEqual(2, len(node.words))
|
| 1168 | _, s, _ = word_.StaticEval(node.words[1])
|
| 1169 | self.assertEqual('foo#bar', s)
|
| 1170 |
|
| 1171 | # This is a comment
|
| 1172 | node = assert_ParseCommandList(self, """\
|
| 1173 | echo foo #comment
|
| 1174 | """)
|
| 1175 | self.assertEqual(command_e.Simple, node.tag())
|
| 1176 | self.assertEqual(2, len(node.words))
|
| 1177 | _, s, _ = word_.StaticEval(node.words[1])
|
| 1178 | self.assertEqual('foo', s)
|
| 1179 |
|
| 1180 | # Empty comment
|
| 1181 | node = assert_ParseCommandList(self, """\
|
| 1182 | echo foo #
|
| 1183 | """)
|
| 1184 | self.assertEqual(command_e.Simple, node.tag())
|
| 1185 | self.assertEqual(2, len(node.words))
|
| 1186 | _, s, _ = word_.StaticEval(node.words[1])
|
| 1187 | self.assertEqual('foo', s)
|
| 1188 |
|
| 1189 | def testChromeIfSubshell(self):
|
| 1190 | node = assert_ParseCommandList(
|
| 1191 | self, """\
|
| 1192 | if true; then (
|
| 1193 | echo hi
|
| 1194 | )
|
| 1195 | fi
|
| 1196 | """)
|
| 1197 | self.assertEqual(command_e.If, node.tag())
|
| 1198 |
|
| 1199 | node = assert_ParseCommandList(
|
| 1200 | self, """\
|
| 1201 | while true; do {
|
| 1202 | echo hi
|
| 1203 | break
|
| 1204 | } done
|
| 1205 | """)
|
| 1206 | self.assertEqual(command_e.WhileUntil, node.tag())
|
| 1207 | self.assertEqual(Id.KW_While, node.keyword.id)
|
| 1208 |
|
| 1209 | node = assert_ParseCommandList(
|
| 1210 | self, """\
|
| 1211 | if true; then (
|
| 1212 | echo hi
|
| 1213 | ) fi
|
| 1214 | """)
|
| 1215 | self.assertEqual(command_e.If, node.tag())
|
| 1216 |
|
| 1217 | # Related: two fi's in a row, found in Chrome configure. Compound commands
|
| 1218 | # are special; don't need newlines.
|
| 1219 | node = assert_ParseCommandList(
|
| 1220 | self, """\
|
| 1221 | if true; then
|
| 1222 | if true; then
|
| 1223 | echo hi
|
| 1224 | fi fi
|
| 1225 | echo hi
|
| 1226 | """)
|
| 1227 | self.assertEqual(command_e.CommandList, node.tag())
|
| 1228 |
|
| 1229 | def testBackticks(self):
|
| 1230 | # Another empty command sub
|
| 1231 | node = assert_ParseCommandList(self, """\
|
| 1232 | echo $()
|
| 1233 | """)
|
| 1234 |
|
| 1235 | # Simplest case
|
| 1236 | node = assert_ParseCommandList(self, """\
|
| 1237 | echo ``
|
| 1238 | """)
|
| 1239 |
|
| 1240 | # Found in the wild.
|
| 1241 | # Just a comment trick found in sandstorm
|
| 1242 | node = assert_ParseCommandList(
|
| 1243 | self, """\
|
| 1244 | cmd \
|
| 1245 | flag `# comment` \
|
| 1246 | flag2
|
| 1247 | """)
|
| 1248 |
|
| 1249 | # Empty should be allowed
|
| 1250 | node = assert_ParseCommandList(self, """\
|
| 1251 | FOO="bar"`
|
| 1252 | `"baz"
|
| 1253 | """)
|
| 1254 |
|
| 1255 | def testQuineDb(self):
|
| 1256 | # Need to handle the DOLLAR_SQ lex state
|
| 1257 | node = assert_ParseCommandList(
|
| 1258 | self, r"""\
|
| 1259 | case foo in
|
| 1260 | $'\'')
|
| 1261 | ret+="\\"\'
|
| 1262 | ;;
|
| 1263 | esac
|
| 1264 | """)
|
| 1265 | self.assertEqual(command_e.Case, node.tag())
|
| 1266 |
|
| 1267 | node = assert_ParseCommandList(self, r"""\
|
| 1268 | $'abc\ndef'
|
| 1269 | """)
|
| 1270 | self.assertEqual(command_e.Simple, node.tag())
|
| 1271 | self.assertEqual(1, len(node.words))
|
| 1272 | w = node.words[0]
|
| 1273 | self.assertEqual(1, len(w.parts))
|
| 1274 | p = w.parts[0]
|
| 1275 |
|
| 1276 | self.assertEqual('abc\ndef', p.sval)
|
| 1277 |
|
| 1278 | def testArithConstants(self):
|
| 1279 | # Found in Gherkin
|
| 1280 | node = assert_ParseCommandList(
|
| 1281 | self, r"""\
|
| 1282 | [[ -n "${marks[${tag_marker}002${cons_ptr}]}" ]];
|
| 1283 | """)
|
| 1284 | # Dynamic constant
|
| 1285 | node = assert_ParseCommandList(self, r"""\
|
| 1286 | echo $(( 0x$foo ))
|
| 1287 | """)
|
| 1288 |
|
| 1289 | def testBacktickCommentHack(self):
|
| 1290 | # Found in sandstorm.
|
| 1291 | # The problem here is that the comment goes to the end of the line, which
|
| 1292 | # eats up the closing backtick! We could change the mode of the lexer
|
| 1293 | # inside a command sub, or possibly just ignore this use case.
|
| 1294 | return
|
| 1295 |
|
| 1296 | node = assert_ParseCommandList(
|
| 1297 | self, r"""\
|
| 1298 | openssl \
|
| 1299 | -newkey rsa:4096 `# Create a new RSA key of length 4096 bits.` \
|
| 1300 | `# Sandcats just needs the CN= (common name) in the request.` \
|
| 1301 | -subj "/CN=*.${SS_HOSTNAME}/"
|
| 1302 | """)
|
| 1303 |
|
| 1304 | def testArrayLiteralFromSetup(self):
|
| 1305 | # Found in setup.shl/bin/setup -- this is the "Parsing Bash is
|
| 1306 | # Undecidable" problem.
|
| 1307 | err = _assert_ParseCommandListError(
|
| 1308 | self, """\
|
| 1309 | errcmd=( "${SETUP_STATE[$err.cmd]}" )
|
| 1310 | """)
|
| 1311 |
|
| 1312 | # Double quotes fix it.
|
| 1313 | node = assert_ParseCommandList(
|
| 1314 | self, r"""\
|
| 1315 | errcmd=( "${SETUP_STATE["$err.cmd"]}" )
|
| 1316 | """)
|
| 1317 |
|
| 1318 |
|
| 1319 | class ErrorLocationsTest(unittest.TestCase):
|
| 1320 |
|
| 1321 | def testCommand(self):
|
| 1322 | """Enumerating errors in cmd_parse.py."""
|
| 1323 |
|
| 1324 | err = _assert_ParseCommandListError(self, 'ls <')
|
| 1325 |
|
| 1326 | err = _assert_ParseCommandListError(self, 'ls < <')
|
| 1327 |
|
| 1328 | # Word parse error in command parser
|
| 1329 | err = _assert_ParseCommandListError(self, r'echo foo$(ls <)bar')
|
| 1330 |
|
| 1331 | err = _assert_ParseCommandListError(self, r'BAD_ENV=(1 2 3) ls')
|
| 1332 |
|
| 1333 | # This needs more context
|
| 1334 | err = _assert_ParseCommandListError(
|
| 1335 | self, 'for ((i=1; i<)); do echo $i; done')
|
| 1336 |
|
| 1337 | err = _assert_ParseCommandListError(
|
| 1338 | self, 'for ((i=1; i<5; ++i)) OOPS echo $i; ERR')
|
| 1339 |
|
| 1340 | # After semi
|
| 1341 | err = _assert_ParseCommandListError(
|
| 1342 | self, 'for ((i=1; i<5; ++i)); OOPS echo $i; ERR')
|
| 1343 |
|
| 1344 | err = _assert_ParseCommandListError(
|
| 1345 | self, 'for $bad in 1 2; do echo hi; done')
|
| 1346 |
|
| 1347 | err = _assert_ParseCommandListError(self, 'for foo BAD')
|
| 1348 |
|
| 1349 | err = _assert_ParseCommandListError(self, 'if foo; then echo hi; z')
|
| 1350 |
|
| 1351 | err = _assert_ParseCommandListError(self,
|
| 1352 | 'foo$(invalid) () { echo hi; }')
|
| 1353 |
|
| 1354 | def testErrorInHereDoc(self):
|
| 1355 | return
|
| 1356 | # Here doc body. Hm this should be failing. Does it just fail to get
|
| 1357 | # filled?
|
| 1358 | err = _assert_ParseCommandListError(self, """cat <<EOF
|
| 1359 | $(echo <)
|
| 1360 | EOF
|
| 1361 | """)
|
| 1362 | return
|
| 1363 |
|
| 1364 | def testBool(self):
|
| 1365 | """Enumerating errors in bool_parse.py."""
|
| 1366 | err = _assert_ParseCommandListError(self, '[[ foo bar ]]')
|
| 1367 | err = _assert_ParseCommandListError(self, '[[ foo -eq ]]')
|
| 1368 |
|
| 1369 | # error in word
|
| 1370 | err = _assert_ParseCommandListError(self, '[[ foo$(echo <) -eq foo ]]')
|
| 1371 |
|
| 1372 | return
|
| 1373 | # NOTE: This was disabled because of escaping.
|
| 1374 | # Invalid regex
|
| 1375 | err = _assert_ParseCommandListError(self, '[[ foo =~ \( ]]')
|
| 1376 |
|
| 1377 | def testArith(self):
|
| 1378 | """Enumerating errors in arith_parse.py."""
|
| 1379 | err = _assert_ParseCommandListError(self, '(( 1 + ))')
|
| 1380 |
|
| 1381 | def testArraySyntax(self):
|
| 1382 | err = _assert_ParseCommandListError(self, 'A= (1 2)')
|
| 1383 |
|
| 1384 | def testEofInDoubleQuoted(self):
|
| 1385 | err = _assert_ParseCommandListError(self, 'foo="" echo "bar ')
|
| 1386 |
|
| 1387 | def testQuotesInFunctionName(self):
|
| 1388 | err = _assert_ParseCommandListError(
|
| 1389 | self, """\
|
| 1390 | foo"bar" () {
|
| 1391 | echo hi
|
| 1392 | }
|
| 1393 | """)
|
| 1394 |
|
| 1395 | def testForLoopName(self):
|
| 1396 | err = _assert_ParseCommandListError(
|
| 1397 | self, """\
|
| 1398 | for [ i = 1; i < 10; i++ ]
|
| 1399 | """)
|
| 1400 | err = _assert_ParseCommandListError(self, """\
|
| 1401 | for = in a
|
| 1402 | """)
|
| 1403 |
|
| 1404 | def testHereDocCommandSub(self):
|
| 1405 | # Originally from spec/09-here-doc.sh.
|
| 1406 | err = _assert_ParseCommandListError(
|
| 1407 | self, """\
|
| 1408 | for x in 1 2 $(cat <<EOF
|
| 1409 | THREE
|
| 1410 | EOF); do
|
| 1411 | echo for word $x
|
| 1412 | done
|
| 1413 | """)
|
| 1414 |
|
| 1415 | def testForLoopEof(self):
|
| 1416 | err = _assert_ParseCommandListError(self, "for x in 1 2 $(")
|
| 1417 |
|
| 1418 |
|
| 1419 | class ParserInteractionsTest(unittest.TestCase):
|
| 1420 |
|
| 1421 | def _dumpLexerState(self, lexer):
|
| 1422 | print("----")
|
| 1423 | print(lexer.line_lexer.src_line.content)
|
| 1424 | print(" " * lexer.line_lexer.line_pos + "^ We are here")
|
| 1425 | print("----")
|
| 1426 |
|
| 1427 | def testBraceGroup(self):
|
| 1428 | code_str = '{ echo hello; } '
|
| 1429 |
|
| 1430 | c_parser = test_lib.InitCommandParser(code_str)
|
| 1431 | lexer = c_parser.lexer
|
| 1432 |
|
| 1433 | c_parser.ParseBraceGroup()
|
| 1434 |
|
| 1435 | if 0:
|
| 1436 | self._dumpLexerState(lexer)
|
| 1437 |
|
| 1438 | # We should be at the end of the line:
|
| 1439 | # '{ echo hello; } '
|
| 1440 | # ^ Which is here
|
| 1441 | self.assertEqual(len(lexer.line_lexer.src_line.content),
|
| 1442 | lexer.line_lexer.line_pos)
|
| 1443 |
|
| 1444 | next_id = c_parser.w_parser.LookPastSpace()
|
| 1445 | self.assertEqual(next_id, Id.Unknown_Tok, Id_str(next_id))
|
| 1446 |
|
| 1447 | def testYSHBraceGroup(self):
|
| 1448 | code_str = '{ echo hello } '
|
| 1449 |
|
| 1450 | c_parser = test_lib.InitCommandParser(code_str)
|
| 1451 | c_parser.parse_opts = state.MakeYshParseOpts(
|
| 1452 | ) # place parser in YSH mode
|
| 1453 | lexer = c_parser.lexer
|
| 1454 |
|
| 1455 | c_parser.ParseBraceGroup()
|
| 1456 |
|
| 1457 | if 0:
|
| 1458 | self._dumpLexerState(lexer)
|
| 1459 |
|
| 1460 | self.assertEqual(len(lexer.line_lexer.src_line.content),
|
| 1461 | lexer.line_lexer.line_pos)
|
| 1462 |
|
| 1463 | next_id = c_parser.w_parser.LookPastSpace()
|
| 1464 | self.assertEqual(next_id, Id.Unknown_Tok)
|
| 1465 |
|
| 1466 | def testCmd2Expr2Cmd(self):
|
| 1467 | code_str = '{ = hello } '
|
| 1468 |
|
| 1469 | c_parser = test_lib.InitCommandParser(code_str)
|
| 1470 | c_parser.parse_opts = state.MakeYshParseOpts(
|
| 1471 | ) # place parser in YSH mode
|
| 1472 | lexer = c_parser.lexer
|
| 1473 |
|
| 1474 | c_parser.ParseBraceGroup()
|
| 1475 |
|
| 1476 | if 0:
|
| 1477 | self._dumpLexerState(lexer)
|
| 1478 |
|
| 1479 | self.assertEqual(len(lexer.line_lexer.src_line.content),
|
| 1480 | lexer.line_lexer.line_pos)
|
| 1481 |
|
| 1482 | next_id = c_parser.w_parser.LookPastSpace()
|
| 1483 | self.assertEqual(next_id, Id.Unknown_Tok)
|
| 1484 |
|
| 1485 |
|
| 1486 | if __name__ == '__main__':
|
| 1487 | unittest.main()
|