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import time
import pytest
from unittest.mock import Mock, patch
@pytest.fixture
def refresher():
from mycli.completion_refresher import CompletionRefresher
return CompletionRefresher()
def test_ctor(refresher):
"""Refresher object should contain a few handlers.
:param refresher:
:return:
"""
assert len(refresher.refreshers) > 0
actual_handlers = list(refresher.refreshers.keys())
expected_handlers = ['databases', 'schemata', 'tables', 'users', 'functions',
'special_commands', 'show_commands', 'keywords']
assert expected_handlers == actual_handlers
def test_refresh_called_once(refresher):
"""
:param refresher:
:return:
"""
callbacks = Mock()
sqlexecute = Mock()
with patch.object(refresher, '_bg_refresh') as bg_refresh:
actual = refresher.refresh(sqlexecute, callbacks)
time.sleep(1) # Wait for the thread to work.
assert len(actual) == 1
assert len(actual[0]) == 4
assert actual[0][3] == 'Auto-completion refresh started in the background.'
bg_refresh.assert_called_with(sqlexecute, callbacks, {})
def test_refresh_called_twice(refresher):
"""If refresh is called a second time, it should be restarted.
:param refresher:
:return:
"""
callbacks = Mock()
sqlexecute = Mock()
def dummy_bg_refresh(*args):
time.sleep(3) # seconds
refresher._bg_refresh = dummy_bg_refresh
actual1 = refresher.refresh(sqlexecute, callbacks)
time.sleep(1) # Wait for the thread to work.
assert len(actual1) == 1
assert len(actual1[0]) == 4
assert actual1[0][3] == 'Auto-completion refresh started in the background.'
actual2 = refresher.refresh(sqlexecute, callbacks)
time.sleep(1) # Wait for the thread to work.
assert len(actual2) == 1
assert len(actual2[0]) == 4
assert actual2[0][3] == 'Auto-completion refresh restarted.'
def test_refresh_with_callbacks(refresher):
"""Callbacks must be called.
:param refresher:
"""
callbacks = [Mock()]
sqlexecute_class = Mock()
sqlexecute = Mock()
with patch('mycli.completion_refresher.SQLExecute', sqlexecute_class):
# Set refreshers to 0: we're not testing refresh logic here
refresher.refreshers = {}
refresher.refresh(sqlexecute, callbacks)
time.sleep(1) # Wait for the thread to work.
assert (callbacks[0].call_count == 1)
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