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import os

from typing import cast

from bpython.test import FixLanguageTestCase as TestCase, TEST_CONFIG

from bpython.curtsiesfrontend import repl as curtsiesrepl

from bpython import config

from curtsies.window import CursorAwareWindow

def setup_config(conf):

config_struct = config.Config(TEST_CONFIG)

for key, value in conf.items():

if not hasattr(config_struct, key):

raise ValueError(f"{key!r} is not a valid config attribute")

setattr(config_struct, key, value)

return config_struct

def create_repl(brackets_enabled=False, **kwargs):

config = setup_config(

{"editor": "true", "brackets_completion": brackets_enabled}

)

repl = curtsiesrepl.BaseRepl(

config, cast(CursorAwareWindow, None), **kwargs

)

os.environ["PAGER"] = "true"

os.environ.pop("PYTHONSTARTUP", None)

repl.width = 50

repl.height = 20

return repl

class TestBracketCompletionEnabled(TestCase):

def setUp(self):

self.repl = create_repl(brackets_enabled=True)

def process_multiple_events(self, event_list):

for event in event_list:

self.repl.process_event(event)

def test_start_line(self):

self.repl.process_event("(")

self.assertEqual(self.repl._current_line, "()")

self.assertEqual(self.repl._cursor_offset, 1)

def test_nested_brackets(self):

self.process_multiple_events(["(", "[", "{"])

self.assertEqual(self.repl._current_line, """([{}])""")

self.assertEqual(self.repl._cursor_offset, 3)

def test_quotes(self):

self.process_multiple_events(["(", "'", "x", "<TAB>", ","])

self.process_multiple_events(["[", '"', "y", "<TAB>", "<TAB>", "<TAB>"])

self.assertEqual(self.repl._current_line, """('x',["y"])""")

self.assertEqual(self.repl._cursor_offset, 11)

def test_bracket_overwrite_closing_char(self):

self.process_multiple_events(["(", "[", "{"])

self.assertEqual(self.repl._current_line, """([{}])""")

self.assertEqual(self.repl._cursor_offset, 3)

self.process_multiple_events(["}", "]", ")"])

self.assertEqual(self.repl._current_line, """([{}])""")

self.assertEqual(self.repl._cursor_offset, 6)

def test_brackets_move_cursor_on_tab(self):

self.process_multiple_events(["(", "[", "{"])

self.assertEqual(self.repl._current_line, """([{}])""")

self.assertEqual(self.repl._cursor_offset, 3)

self.repl.process_event("<TAB>")

self.assertEqual(self.repl._current_line, """([{}])""")

self.assertEqual(self.repl._cursor_offset, 4)

self.repl.process_event("<TAB>")

self.assertEqual(self.repl._current_line, """([{}])""")

self.assertEqual(self.repl._cursor_offset, 5)

self.repl.process_event("<TAB>")

self.assertEqual(self.repl._current_line, """([{}])""")

self.assertEqual(self.repl._cursor_offset, 6)

def test_brackets_non_whitespace_following_char(self):

self.repl.current_line = "s = s.connect('localhost', 8080)"

self.repl.cursor_offset = 14

self.repl.process_event("(")

self.assertEqual(

self.repl._current_line, "s = s.connect(('localhost', 8080)"

)

self.assertEqual(self.repl._cursor_offset, 15)

def test_brackets_deletion_on_backspace(self):

self.repl.current_line = "def foo()"

self.repl.cursor_offset = 8

self.repl.process_event("<BACKSPACE>")

self.assertEqual(self.repl._current_line, "def foo")

self.assertEqual(self.repl.cursor_offset, 7)

def test_brackets_deletion_on_backspace_nested(self):

self.repl.current_line = '([{""}])'

self.repl.cursor_offset = 4

self.process_multiple_events(

["<BACKSPACE>", "<BACKSPACE>", "<BACKSPACE>"]

)

self.assertEqual(self.repl._current_line, "()")

self.assertEqual(self.repl.cursor_offset, 1)

class TestBracketCompletionDisabled(TestCase):

def setUp(self):

self.repl = create_repl(brackets_enabled=False)

def process_multiple_events(self, event_list):

for event in event_list:

self.repl.process_event(event)

def test_start_line(self):

self.repl.process_event("(")

self.assertEqual(self.repl._current_line, "(")

self.assertEqual(self.repl._cursor_offset, 1)

def test_nested_brackets(self):

self.process_multiple_events(["(", "[", "{"])

self.assertEqual(self.repl._current_line, "([{")

self.assertEqual(self.repl._cursor_offset, 3)

def test_bracket_overwrite_closing_char(self):

self.process_multiple_events(["(", "[", "{"])

self.assertEqual(self.repl._current_line, """([{""")

self.assertEqual(self.repl._cursor_offset, 3)

self.process_multiple_events(["}", "]", ")"])

self.assertEqual(self.repl._current_line, """([{}])""")

self.assertEqual(self.repl._cursor_offset, 6)

def test_brackets_move_cursor_on_tab(self):

self.process_multiple_events(["(", "[", "{"])

self.assertEqual(self.repl._current_line, """([{""")

self.assertEqual(self.repl._cursor_offset, 3)

self.repl.process_event("<TAB>")

self.assertEqual(self.repl._current_line, """([{""")

self.assertEqual(self.repl._cursor_offset, 3)

def test_brackets_deletion_on_backspace(self):

self.repl.current_line = "def foo()"

self.repl.cursor_offset = 8

self.repl.process_event("<BACKSPACE>")

self.assertEqual(self.repl._current_line, "def foo")

self.assertEqual(self.repl.cursor_offset, 7)

def test_brackets_deletion_on_backspace_nested(self):

self.repl.current_line = '([{""}])'

self.repl.cursor_offset = 4

self.process_multiple_events(

["<BACKSPACE>", "<BACKSPACE>", "<BACKSPACE>"]

)

self.assertEqual(self.repl._current_line, "()")

self.assertEqual(self.repl.cursor_offset, 1)