Test that nothing is reloaded with run_once=True

tests/lib/config_mock.py

@@ -4,6 +4,7 @@ from powerline.renderer import Renderer
 from powerline.lib.config import ConfigLoader
 from powerline import Powerline
 from copy import deepcopy
+from functools import wraps
 
 
 access_log = []
@@ -34,13 +35,26 @@ def pop_events():
 	return r
 
 
+def log_call(func):
+	@wraps(func)
+	def ret(self, *args, **kwargs):
+		self._calls.append((func.__name__, args, kwargs))
+		return func(self, *args, **kwargs)
+	return ret
+
+
 class Watcher(object):
 	events = set()
 	lock = Lock()
 
+	def __init__(self):
+		self._calls = []
+
+	@log_call
 	def watch(self, file):
 		pass
 
+	@log_call
 	def __call__(self, file):
 		with self.lock:
 			if file in self.events:
@@ -48,11 +62,13 @@ class Watcher(object):
 				return True
 		return False
 
+	@log_call
 	def _reset(self, files):
 		with self.lock:
 			self.events.clear()
 			self.events.update(files)
 
+	@log_call
 	def unsubscribe(self):
 		pass
 
@@ -100,7 +116,7 @@ def get_powerline(**kwargs):
 		ext='test',
 		renderer_module='tests.lib.config_mock',
 		logger=Logger(),
-		config_loader=ConfigLoader(load=load_json_config, watcher=Watcher()),
+		config_loader=ConfigLoader(load=load_json_config, watcher=Watcher(), run_once=kwargs.get('run_once')),
 		**kwargs
 	)
 

tests/test_config_reload.py

@@ -97,7 +97,10 @@ def sleep(interval):
 
 
 def add_watcher_events(p, *args, **kwargs):
-	p.config_loader.watcher._reset(args)
+	try:
+		p.config_loader.watcher._reset(args)
+	except AttributeError:
+		return
 	while not p._will_create_renderer():
 		sleep(kwargs.get('interval', 0.000001))
 		if not kwargs.get('wait', True):
@@ -118,7 +121,6 @@ class TestConfigReload(TestCase):
 				# When running once thread should not start
 				self.assertEqual(p.render(), '<1 2 1> s<2 4 False>>><3 4 4>g<4 False False>>><None None None>')
 				self.assertAccessEvents()
-				self.assertEqual(p.logger._pop_msgs(), [])
 		# Without the following assertion test_reload_colors may fail for 
 		# unknown reason (with AssertionError telling about “config” accessed 
 		# one more time then needed)
@@ -253,6 +255,20 @@ class TestConfigReload(TestCase):
 				self.assertEqual(p.render(), '<1 2 1> col3<2 4 False>>><3 4 4>g<4 False False>>><None None None>')
 				self.assertAccessEvents('themes/test/default')
 				self.assertEqual(p.logger._pop_msgs(), [])
+				self.assertTrue(p.config_loader.watcher._calls)
+		pop_events()
+
+	def test_run_once_no_theme_reload(self):
+		with replace_item(globals(), 'config', deepcopy(config)):
+			config['config']['common']['interval'] = None
+			with get_powerline(run_once=True) as p:
+				self.assertEqual(p.render(), '<1 2 1> s<2 4 False>>><3 4 4>g<4 False False>>><None None None>')
+				self.assertAccessEvents('config', 'colors', 'colorschemes/test/default', 'themes/test/default')
+
+				config['themes/test/default']['segments']['left'][0]['contents'] = 'col3'
+				add_watcher_events(p, 'themes/test/default', wait=False)
+				self.assertEqual(p.render(), '<1 2 1> s<2 4 False>>><3 4 4>g<4 False False>>><None None None>')
+				self.assertAccessEvents()
 		pop_events()