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test_text.py
''' Test mock_tk.Text class against tkinter.Text class Run same tests with both by creating a mixin class. ''' import unittest from test.support import requires from _tkinter import TclError class TextTest(object): "Define items common to both sets of tests." hw = 'hello\nworld' # Several tests insert this after initialization. hwn = hw+'\n' # \n present at initialization, before insert # setUpClass defines cls.Text and maybe cls.root. # setUp defines self.text from Text and maybe root. def test_init(self): self.assertEqual(self.text.get('1.0'), '\n') self.assertEqual(self.text.get('end'), '') def test_index_empty(self): index = self.text.index for dex in (-1.0, 0.3, '1.-1', '1.0', '1.0 lineend', '1.end', '1.33', 'insert'): self.assertEqual(index(dex), '1.0') for dex in 'end', 2.0, '2.1', '33.44': self.assertEqual(index(dex), '2.0') def test_index_data(self): index = self.text.index self.text.insert('1.0', self.hw) for dex in -1.0, 0.3, '1.-1', '1.0': self.assertEqual(index(dex), '1.0') for dex in '1.0 lineend', '1.end', '1.33': self.assertEqual(index(dex), '1.5') for dex in 'end', '33.44': self.assertEqual(index(dex), '3.0') def test_get(self): get = self.text.get Equal = self.assertEqual self.text.insert('1.0', self.hw) Equal(get('end'), '') Equal(get('end', 'end'), '') Equal(get('1.0'), 'h') Equal(get('1.0', '1.1'), 'h') Equal(get('1.0', '1.3'), 'hel') Equal(get('1.1', '1.3'), 'el') Equal(get('1.0', '1.0 lineend'), 'hello') Equal(get('1.0', '1.10'), 'hello') Equal(get('1.0 lineend'), '\n') Equal(get('1.1', '2.3'), 'ello\nwor') Equal(get('1.0', '2.5'), self.hw) Equal(get('1.0', 'end'), self.hwn) Equal(get('0.0', '5.0'), self.hwn) def test_insert(self): insert = self.text.insert get = self.text.get Equal = self.assertEqual insert('1.0', self.hw) Equal(get('1.0', 'end'), self.hwn) insert('1.0', '') # nothing Equal(get('1.0', 'end'), self.hwn) insert('1.0', '*') Equal(get('1.0', 'end'), '*hello\nworld\n') insert('1.0 lineend', '*') Equal(get('1.0', 'end'), '*hello*\nworld\n') insert('2.3', '*') Equal(get('1.0', 'end'), '*hello*\nwor*ld\n') insert('end', 'x') Equal(get('1.0', 'end'), '*hello*\nwor*ldx\n') insert('1.4', 'x\n') Equal(get('1.0', 'end'), '*helx\nlo*\nwor*ldx\n') def test_no_delete(self): # if index1 == 'insert' or 'end' or >= end, there is no deletion delete = self.text.delete get = self.text.get Equal = self.assertEqual self.text.insert('1.0', self.hw) delete('insert') Equal(get('1.0', 'end'), self.hwn) delete('end') Equal(get('1.0', 'end'), self.hwn) delete('insert', 'end') Equal(get('1.0', 'end'), self.hwn) delete('insert', '5.5') Equal(get('1.0', 'end'), self.hwn) delete('1.4', '1.0') Equal(get('1.0', 'end'), self.hwn) delete('1.4', '1.4') Equal(get('1.0', 'end'), self.hwn) def test_delete_char(self): delete = self.text.delete get = self.text.get Equal = self.assertEqual self.text.insert('1.0', self.hw) delete('1.0') Equal(get('1.0', '1.end'), 'ello') delete('1.0', '1.1') Equal(get('1.0', '1.end'), 'llo') # delete \n and combine 2 lines into 1 delete('1.end') Equal(get('1.0', '1.end'), 'lloworld') self.text.insert('1.3', '\n') delete('1.10') Equal(get('1.0', '1.end'), 'lloworld') self.text.insert('1.3', '\n') delete('1.3', '2.0') Equal(get('1.0', '1.end'), 'lloworld') def test_delete_slice(self): delete = self.text.delete get = self.text.get Equal = self.assertEqual self.text.insert('1.0', self.hw) delete('1.0', '1.0 lineend') Equal(get('1.0', 'end'), '\nworld\n') delete('1.0', 'end') Equal(get('1.0', 'end'), '\n') self.text.insert('1.0', self.hw) delete('1.0', '2.0') Equal(get('1.0', 'end'), 'world\n') delete('1.0', 'end') Equal(get('1.0', 'end'), '\n') self.text.insert('1.0', self.hw) delete('1.2', '2.3') Equal(get('1.0', 'end'), 'held\n') def test_multiple_lines(self): # insert and delete self.text.insert('1.0', 'hello') self.text.insert('1.3', '1\n2\n3\n4\n5') self.assertEqual(self.text.get('1.0', 'end'), 'hel1\n2\n3\n4\n5lo\n') self.text.delete('1.3', '5.1') self.assertEqual(self.text.get('1.0', 'end'), 'hello\n') def test_compare(self): compare = self.text.compare Equal = self.assertEqual # need data so indexes not squished to 1,0 self.text.insert('1.0', 'First\nSecond\nThird\n') self.assertRaises(TclError, compare, '2.2', 'op', '2.2') for op, less1, less0, equal, greater0, greater1 in ( ('<', True, True, False, False, False), ('<=', True, True, True, False, False), ('>', False, False, False, True, True), ('>=', False, False, True, True, True), ('==', False, False, True, False, False), ('!=', True, True, False, True, True), ): Equal(compare('1.1', op, '2.2'), less1, op) Equal(compare('2.1', op, '2.2'), less0, op) Equal(compare('2.2', op, '2.2'), equal, op) Equal(compare('2.3', op, '2.2'), greater0, op) Equal(compare('3.3', op, '2.2'), greater1, op) class MockTextTest(TextTest, unittest.TestCase): @classmethod def setUpClass(cls): from idlelib.idle_test.mock_tk import Text cls.Text = Text def setUp(self): self.text = self.Text() def test_decode(self): # test endflags (-1, 0) not tested by test_index (which uses +1) decode = self.text._decode Equal = self.assertEqual self.text.insert('1.0', self.hw) Equal(decode('end', -1), (2, 5)) Equal(decode('3.1', -1), (2, 5)) Equal(decode('end', 0), (2, 6)) Equal(decode('3.1', 0), (2, 6)) class TkTextTest(TextTest, unittest.TestCase): @classmethod def setUpClass(cls): requires('gui') from tkinter import Tk, Text cls.Text = Text cls.root = Tk() @classmethod def tearDownClass(cls): cls.root.destroy() del cls.root def setUp(self): self.text = self.Text(self.root) if __name__ == '__main__': unittest.main(verbosity=2, exit=False)
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