Add tests

powerline/vim.py

@@ -23,8 +23,8 @@ def _override_from(config, override_varname):
 
 
 class VimPowerline(Powerline):
-	def __init__(self, pyeval='PowerlinePyeval'):
+	def __init__(self, pyeval='PowerlinePyeval', **kwargs):
-		super(VimPowerline, self).__init__('vim')
+		super(VimPowerline, self).__init__('vim', **kwargs)
 		self.last_window_id = 1
 		self.window_statusline = '%!' + pyeval + '(\'powerline.statusline({0})\')'
 

tests/lib/config_mock.py

@@ -121,16 +121,23 @@ renderer = SimpleRenderer
 
 
 def get_powerline(**kwargs):
+	return get_powerline_raw(
+		TestPowerline,
+		ext='test',
+		renderer_module='tests.lib.config_mock',
+		logger=Logger(),
+		**kwargs
+	)
+
+
+def get_powerline_raw(PowerlineClass, **kwargs):
 	global renderer
 	watcher = Watcher()
 	if kwargs.pop('simpler_renderer', False):
 		renderer = EvenSimplerRenderer
 	else:
 		renderer = SimpleRenderer
-	pl = TestPowerline(
+	pl = PowerlineClass(
-		ext='test',
-		renderer_module='tests.lib.config_mock',
-		logger=Logger(),
 		config_loader=ConfigLoader(load=load_json_config, watcher=watcher, run_once=kwargs.get('run_once')),
 		**kwargs
 	)

tests/test_configuration.py

@@ -1,11 +1,15 @@
 # vim:fileencoding=utf-8:noet
 from __future__ import unicode_literals, absolute_import, division
+import tests.vim as vim_module
 import powerline as powerline_module
 from tests import TestCase
 from tests.lib import replace_item
 from tests.lib.config_mock import swap_attributes, get_powerline, pop_events
+from tests.lib.config_mock import get_powerline_raw
 from functools import wraps
 from copy import deepcopy
+import sys
+import os
 
 
 config = {
@@ -29,6 +33,10 @@ config = {
 				'theme': 'default',
 				'colorscheme': 'default',
 			},
+			'vim': {
+				'theme': 'default',
+				'colorscheme': 'default',
+			},
 		},
 	},
 	'colors': {
@@ -47,6 +55,11 @@ config = {
 			'str2': {'fg': 'col3', 'bg': 'col4', 'attr': ['underline']},
 		},
 	},
+	'colorschemes/vim/default': {
+		'groups': {
+			'environment': {'fg': 'col3', 'bg': 'col4', 'attr': ['underline']},
+		},
+	},
 	'themes/test/default': {
 		'segments': {
 			'left': [
@@ -73,6 +86,19 @@ config = {
 			],
 		},
 	},
+	'themes/vim/default': {
+		'default_module': 'powerline.segments.common',
+		'segments': {
+			'left': [
+				{
+					'name': 'environment',
+					'args': {
+						'variable': 'TEST',
+					},
+				},
+			],
+		},
+	},
 }
 
 
@@ -122,15 +148,34 @@ class TestSingleLine(TestCase):
 				], width=10)
 
 
+class TestVim(TestCase):
+	def test_environ_update(self):
+		# Regression test: test that segment obtains environment from vim, not 
+		# from os.environ.
+		from powerline.vim import VimPowerline
+		with vim_module._with('environ', TEST='abc'):
+			with get_powerline_raw(VimPowerline) as powerline:
+				window = vim_module.current.window
+				window_id = 1
+				winnr = window.number
+				self.assertEqual(powerline.render(window, window_id, winnr), '%#Pl_3_8404992_4_192_underline#\xa0abc%#Pl_4_192_NONE_None_NONE#>>')
+				vim_module._environ['TEST'] = 'def'
+				self.assertEqual(powerline.render(window, window_id, winnr), '%#Pl_3_8404992_4_192_underline#\xa0def%#Pl_4_192_NONE_None_NONE#>>')
+
+
 replaces = {}
 
 
 def setUpModule():
 	global replaces
 	replaces = swap_attributes(globals(), powerline_module, replaces)
+	sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), 'path')))
 
 
-tearDownModule = setUpModule
+def tearDownModule():
+	global replaces
+	replaces = swap_attributes(globals(), powerline_module, replaces)
+	sys.path.pop(0)
 
 
 if __name__ == '__main__':

tests/vim.py

@@ -11,6 +11,9 @@ options = {
 }
 _last_bufnr = 0
 _highlights = {}
+from collections import defaultdict as _defaultdict
+_environ = _defaultdict(lambda: '')
+del _defaultdict
 
 
 _thread_id = None
@@ -169,6 +172,8 @@ def eval(expr):
 		return vars[expr[2:]]
 	elif expr.startswith('&'):
 		return options[expr[1:]]
+	elif expr.startswith('$'):
+		return _environ[expr[1:]]
 	elif expr.startswith('PowerlineRegisterCachePurgerEvent'):
 		_buf_purge_events.add(expr[expr.find('"') + 1:expr.rfind('"') - 1])
 		return '0'
@@ -708,6 +713,8 @@ def _with(key, *args, **kwargs):
 		return _WithDict(options, **kwargs)
 	elif key == 'globals':
 		return _WithDict(vars, **kwargs)
+	elif key == 'environ':
+		return _WithDict(_environ, **kwargs)
 	elif key == 'split':
 		return _WithSplit()