diff options
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/idlelib/IdleHistory.py | 18 | ||||
| -rw-r--r-- | Lib/idlelib/idle_test/test_idlehistory.py | 164 |
2 files changed, 179 insertions, 3 deletions
diff --git a/Lib/idlelib/IdleHistory.py b/Lib/idlelib/IdleHistory.py index 25fe6e4..dc1ac8b 100644 --- a/Lib/idlelib/IdleHistory.py +++ b/Lib/idlelib/IdleHistory.py @@ -49,7 +49,13 @@ class History: self.text.insert(where, output) def fetch(self, reverse): - "Fetch statememt and enter into text at cursor." + '''Fetch statememt and replace current line in text widget. + + Set prefix and pointer as needed for successive fetches. + Reset them to None, None when returning to the start line. + Sound bell when return to start line or cannot leave a line + because cyclic is False. + ''' nhist = len(self.history) pointer = self.pointer prefix = self.prefix @@ -64,7 +70,7 @@ class History: else: if self.cyclic: pointer = -1 # will be incremented - else: + else: # abort history_next self.text.bell() return nprefix = len(prefix) @@ -75,7 +81,7 @@ class History: pointer = pointer + 1 if pointer < 0 or pointer >= nhist: self.text.bell() - if not self.cyclic and pointer < 0: + if not self.cyclic and pointer < 0: # abort history_prev return else: if self._get_source("iomark", "end-1c") != prefix: @@ -106,3 +112,9 @@ class History: self.history.append(source) self.pointer = None self.prefix = None + +if __name__ == "__main__": + from test import support + support.use_resources = ['gui'] + from unittest import main + main('idlelib.idle_test.test_idlehistory', verbosity=2, exit=False) diff --git a/Lib/idlelib/idle_test/test_idlehistory.py b/Lib/idlelib/idle_test/test_idlehistory.py new file mode 100644 index 0000000..c48529d --- /dev/null +++ b/Lib/idlelib/idle_test/test_idlehistory.py @@ -0,0 +1,164 @@ +import unittest +from test.support import requires + +import tkinter as tk +from tkinter import Text as tkText +from idlelib.idle_test.mock_tk import Text as mkText +from idlelib.IdleHistory import History +from idlelib.configHandler import idleConf + +line1 = 'a = 7' +line2 = 'b = a' + +class StoreTest(unittest.TestCase): + '''Tests History.__init__ and History.store with mock Text''' + + @classmethod + def setUpClass(cls): + cls.text = mkText() + cls.history = History(cls.text) + + def tearDown(self): + self.text.delete('1.0', 'end') + self.history.history = [] + + def test_init(self): + self.assertIs(self.history.text, self.text) + self.assertEqual(self.history.history, []) + self.assertIsNone(self.history.prefix) + self.assertIsNone(self.history.pointer) + self.assertEqual(self.history.cyclic, + idleConf.GetOption("main", "History", "cyclic", 1, "bool")) + + def test_store_short(self): + self.history.store('a') + self.assertEqual(self.history.history, []) + self.history.store(' a ') + self.assertEqual(self.history.history, []) + + def test_store_dup(self): + self.history.store(line1) + self.assertEqual(self.history.history, [line1]) + self.history.store(line2) + self.assertEqual(self.history.history, [line1, line2]) + self.history.store(line1) + self.assertEqual(self.history.history, [line2, line1]) + + def test_store_reset(self): + self.history.prefix = line1 + self.history.pointer = 0 + self.history.store(line2) + self.assertIsNone(self.history.prefix) + self.assertIsNone(self.history.pointer) + + +class TextWrapper: + def __init__(self, master): + self.text = tkText(master=master) + self._bell = False + def __getattr__(self, name): + return getattr(self.text, name) + def bell(self): + self._bell = True + +class FetchTest(unittest.TestCase): + '''Test History.fetch with wrapped tk.Text. + ''' + @classmethod + def setUpClass(cls): + requires('gui') + cls.root = tk.Tk() + + def setUp(self): + self.text = text = TextWrapper(self.root) + text.insert('1.0', ">>> ") + text.mark_set('iomark', '1.4') + text.mark_gravity('iomark', 'left') + self.history = History(text) + self.history.history = [line1, line2] + + @classmethod + def tearDownClass(cls): + cls.root.destroy() + + def fetch_test(self, reverse, line, prefix, index, *, bell=False): + # Perform one fetch as invoked by Alt-N or Alt-P + # Test the result. The line test is the most important. + # The last two are diagnostic of fetch internals. + History = self.history + History.fetch(reverse) + Equal = self.assertEqual + Equal(self.text.get('iomark', 'end-1c'), line) + Equal(self.text._bell, bell) + if bell: + self.text._bell = False + Equal(History.prefix, prefix) + Equal(History.pointer, index) + + def test_fetch_prev_cyclic(self): + prefix = '' + test = self.fetch_test + test(True, line2, prefix, 1) + test(True, line1, prefix, 0) + test(True, prefix, None, None, bell=True) + + def test_fetch_next_cyclic(self): + prefix = '' + test = self.fetch_test + test(False, line1, prefix, 0) + test(False, line2, prefix, 1) + test(False, prefix, None, None, bell=True) + + # Prefix 'a' tests skip line2, which starts with 'b' + def test_fetch_prev_prefix(self): + prefix = 'a' + self.text.insert('iomark', prefix) + self.fetch_test(True, line1, prefix, 0) + self.fetch_test(True, prefix, None, None, bell=True) + + def test_fetch_next_prefix(self): + prefix = 'a' + self.text.insert('iomark', prefix) + self.fetch_test(False, line1, prefix, 0) + self.fetch_test(False, prefix, None, None, bell=True) + + def test_fetch_prev_noncyclic(self): + prefix = '' + self.history.cyclic = False + test = self.fetch_test + test(True, line2, prefix, 1) + test(True, line1, prefix, 0) + test(True, line1, prefix, 0, bell=True) + + def test_fetch_next_noncyclic(self): + prefix = '' + self.history.cyclic = False + test = self.fetch_test + test(False, prefix, None, None, bell=True) + test(True, line2, prefix, 1) + test(False, prefix, None, None, bell=True) + test(False, prefix, None, None, bell=True) + + def test_fetch_cursor_move(self): + # Move cursor after fetch + self.history.fetch(reverse=True) # initialization + self.text.mark_set('insert', 'iomark') + self.fetch_test(True, line2, None, None, bell=True) + + def test_fetch_edit(self): + # Edit after fetch + self.history.fetch(reverse=True) # initialization + self.text.delete('iomark', 'insert', ) + self.text.insert('iomark', 'a =') + self.fetch_test(True, line1, 'a =', 0) # prefix is reset + + def test_history_prev_next(self): + # Minimally test functions bound to events + self.history.history_prev('dummy event') + self.assertEqual(self.history.pointer, 1) + self.history.history_next('dummy event') + self.assertEqual(self.history.pointer, None) + + +if __name__ == '__main__': + unittest.main(verbosity=2, exit=2) |