Create tests for CtrlP

tests/install.sh

@@ -42,6 +42,15 @@ fi
 archive="${PWD:-$(pwd)}/tests/bot-ci/deps/fish/fish.tar.gz"
 sudo sh -c "cd /opt && tar xzf $archive"
 
+mkdir tests/vim-plugins
+
+for archive in "$ROOT"/tests/bot-ci/deps/vim-plugins/*.tar.gz ; do
+	(
+		cd tests/vim-plugins
+		tar -xzvf "$archive"
+	)
+done
+
 # Travis has too outdated fish. It cannot be used for tests.
 # sudo apt-get install fish
 true

tests/setup_statusline_catcher.py

@@ -0,0 +1,18 @@
+# vim:fileencoding=utf-8:noet
+import json
+
+import vim
+
+from powerline.lib.unicode import u
+
+
+_powerline_old_render = powerline.render  # NOQA
+
+
+def _powerline_test_render_function(*args, **kwargs):
+	ret = _powerline_old_render(*args, **kwargs)
+	vim.eval('add(g:statusline_values, %s)' % json.dumps(u(ret)))
+	return ret
+
+
+powerline.render = _powerline_test_render_function  # NOQA

tests/test_ctrlp_plugin.vim

@@ -0,0 +1,17 @@
+#!/usr/bin/vim -S
+set nocompatible
+set columns=80
+execute 'source' fnameescape(expand('<sfile>:p:h').'/vim_utils.vim')
+call EnablePlugins('ctrlp')
+call SourcePowerline()
+let g:statusline_values = []
+call PyFile('setup_statusline_catcher')
+execute 'CtrlP'|call feedkeys("\<C-c>")
+call RunPython('powerline.render = _powerline_old_render')
+let g:expected_statusline = '%#Pl_231_16777215_236_3158064_NONE# mru  %#Pl_236_3158064_240_5789784_NONE# %#Pl_231_16777215_240_5789784_bold#  files    %#Pl_240_5789784_236_3158064_NONE# %#Pl_231_16777215_236_3158064_NONE# buf                                          prt  path '
+if index(g:statusline_values, g:expected_statusline) == -1
+	call CheckStatuslineValue(g:statusline_values[-1], g:expected_statusline)
+	cquit
+endif
+call CheckMessages()
+qall

tests/vim_utils.vim

@@ -0,0 +1,78 @@
+let g:powerline_use_var_handler = 1
+
+let g:root=expand('<sfile>:p:h:h')
+let g:mf=g:root.'/message.fail'
+
+command -nargs=1 LST :call writefile(<args>, g:mf) | cquit
+command -nargs=1 ERR :LST [<args>]
+command -nargs=1 EXC :ERR 'Unexpected exception', <q-args>, v:exception, v:throwpoint
+
+function EnablePlugins(...)
+	let &runtimepath = join(map(copy(a:000), 'escape(g:root."/tests/vim-plugins/".v:val, "\\,")'), ',')
+	try
+		runtime! plugin/*.vim
+		silent doautocmd BufWinEnter
+		silent doautocmd BufEnter
+		silent doautocmd VimEnter
+	catch
+		EXC EnablePlugins
+	endtry
+endfunction
+function RecordStatusline()
+	let g:statusline = &l:statusline
+	if g:statusline[:1] is# '%!'
+		let g:statusline_value=eval(g:statusline[2:])
+	else
+		ERR 'Statusline does not start with %!', g:statusline
+	endif
+	return ''
+endfunction
+function SourcePowerline()
+	let g:powerline_config_paths = [g:root . '/powerline/config_files']
+	try
+		execute 'source' fnameescape(g:root . '/powerline/bindings/vim/plugin/powerline.vim')
+	catch
+		EXC SourcePowerline
+	endtry
+endfunction
+function NDiff(actual, expected)
+	return systemlist(shellescape(g:root.'/tests/bot-ci/scripts/ndiff-strings.py').' '.shellescape(a:actual).' '.shellescape(a:expected))
+endfunction
+function CheckStatuslineValue(actual, expected)
+	if a:actual isnot# a:expected
+		LST ['Expected different statusline value', a:actual, a:expected] + NDiff(a:actual, a:expected)
+	endif
+endfunction
+function CheckRecordedStatuslineValue(expected)
+	return CheckStatuslineValue(g:statusline_value, a:expected)
+endfunction
+function CheckMessages()
+	if !empty(g:powerline_log_messages)
+		LST ['Unexpected messages in log'] + g:powerline_log_messages
+	endif
+	redir => mes
+		messages
+	redir END
+	let mesl = split(mes, "\n")[1:]
+	if !empty(mesl)
+		LST ['Unexpected messages'] + split(mes, "\n", 1)
+	endif
+endfunction
+function RunPython(s)
+	if has('python')
+		execute 'python' a:s
+	else
+		execute 'python3' a:s
+	endif
+endfunction
+function PyFile(f)
+	if has('python')
+		execute 'pyfile' fnameescape(g:root.'/tests/'.a:f.'.py')
+	else
+		execute 'py3file' fnameescape(g:root.'/tests/'.a:f.'.py')
+	endif
+endfunction
+
+for s:c in ['noremap', 'noremap!']
+	execute s:c '<special><expr>' '<Plug>(PowerlineTestRecordStatusline)' 'RecordStatusline()'
+endfor