Method test_set_region

Lib/idlelib/idle_test/test_format.py:453–486

(self)

        eq(get(), ('15.0', '16.0', '\n', ['', '']))

    def test_set_region(self):
        set_ = self.formatter.set_region
        text = self.text
        eq = self.assertEqual

        save_bell = text.bell
        text.bell = mock.Mock()
        line6 = self.code_sample.splitlines()[5]
        line10 = self.code_sample.splitlines()[9]

        text.tag_add('sel', '6.0', '11.0')
        head, tail, chars, lines = self.formatter.get_region()

        # No changes.
        set_(head, tail, chars, lines)
        text.bell.assert_called_once()
        eq(text.get('6.0', '11.0'), chars)
        eq(text.get('sel.first', 'sel.last'), chars)
        text.tag_remove('sel', '1.0', 'end')

        # Alter selected lines by changing lines and adding a newline.
        newstring = 'added line 1\n\n\n\n'
        newlines = newstring.split('\n')
        set_('7.0', '10.0', chars, newlines)
        # Selection changed.
        eq(text.get('sel.first', 'sel.last'), newstring)
        # Additional line added, so last index is changed.
        eq(text.get('7.0', '11.0'), newstring)
        # Before and after lines unchanged.
        eq(text.get('6.0', '7.0-1c'), line6)
        eq(text.get('11.0', '12.0-1c'), line10)
        text.tag_remove('sel', '1.0', 'end')

        text.bell = save_bell

    def test_indent_region_event(self):
        indent = self.formatter.indent_region_event