def test_basic(self): self.assertEqual(self.parse('echo hello'), Pipeline([Command(['echo', 'hello'], [])], False)) self.assertEqual(self.parse('echo ""'), Pipeline([Command(['echo', ''], [])], False)) self.assertEqual(self.parse("""echo -DFOO='a'"""), Pipeline([Command(['echo', '-DFOO=a'], [])], False)) self.assertEqual(self.parse('echo -DFOO="a"'), Pipeline([Command(['echo', '-DFOO=a'], [])], False))
def test_redirection(self): self.assertEqual(self.parse('echo hello > c'), Pipeline([Command(['echo', 'hello'], [((('>'),), 'c')])], False)) self.assertEqual(self.parse('echo hello > c >> d'), Pipeline([Command(['echo', 'hello'], [(('>',), 'c'), (('>>',), 'd')])], False)) self.assertEqual(self.parse('a 2>&1'), Pipeline([Command(['a'], [(('>&',2), '1')])], False))
def test_pipeline(self): self.assertEqual(self.parse('a | b'), Pipeline([Command(['a'], []), Command(['b'], [])], False)) self.assertEqual(self.parse('a | b | c'), Pipeline([Command(['a'], []), Command(['b'], []), Command(['c'], [])], False))
def parse_pipeline(self): negate = False commands = [self.parse_command()] while self.look() == ('|',): self.lex() commands.append(self.parse_command()) return Pipeline(commands, negate, self.pipefail)
def test_list(self): self.assertEqual(self.parse('a ; b'), Seq(Pipeline([Command(['a'], [])], False), ';', Pipeline([Command(['b'], [])], False))) self.assertEqual(self.parse('a & b'), Seq(Pipeline([Command(['a'], [])], False), '&', Pipeline([Command(['b'], [])], False))) self.assertEqual(self.parse('a && b'), Seq(Pipeline([Command(['a'], [])], False), '&&', Pipeline([Command(['b'], [])], False))) self.assertEqual(self.parse('a || b'), Seq(Pipeline([Command(['a'], [])], False), '||', Pipeline([Command(['b'], [])], False))) self.assertEqual(self.parse('a && b || c'), Seq(Seq(Pipeline([Command(['a'], [])], False), '&&', Pipeline([Command(['b'], [])], False)), '||', Pipeline([Command(['c'], [])], False))) self.assertEqual(self.parse('a; b'), Seq(Pipeline([Command(['a'], [])], False), ';', Pipeline([Command(['b'], [])], False)))