Method test_set_lo

Lib/idlelib/idle_test/test_pyparse.py:121–143

(self)

        eq(start(is_char_in_string=lambda index: index < pos), pos)

    def test_set_lo(self):
        code = (
                '"""This is a module docstring"""\n'
                'class C:\n'
                '    def __init__(self, a,\n'
                '                 b=True):\n'
                '        pass\n'
                )
        pos = 42
        p = self.parser
        p.set_code(code)

        # Previous character is not a newline.
        with self.assertRaises(AssertionError):
            p.set_lo(5)

        # A value of 0 doesn't change self.code.
        p.set_lo(0)
        self.assertEqual(p.code, code)

        # An index that is preceded by a newline.
        p.set_lo(pos)
        self.assertEqual(p.code, code[pos:])

    def test_study1(self):
        eq = self.assertEqual