Fix some escaping and make some tests set filenames consistently

ale_linters/ruby/brakeman.vim

@@ -40,7 +40,7 @@ function! ale_linters#ruby#brakeman#GetCommand(buffer) abort
 
     return 'brakeman -f json -q '
     \    . ale#Var(a:buffer, 'ruby_brakeman_options')
-    \    . ' -p ' . l:rails_root
+    \    . ' -p ' . ale#Escape(l:rails_root)
 endfunction
 
 function! s:FindRailsRoot(buffer) abort

autoload/ale/test.vim

@@ -0,0 +1,19 @@
+" Author: w0rp <devw0rp@gmail.com>
+" Description: Functions for making testing ALE easier.
+"
+" This file should not typically be loaded during the normal execution of ALE.
+
+" Change the filename for the current buffer using a relative path to
+" the script without running autocmd commands.
+"
+" If a g:dir variable is set, it will be used as the path to the directory
+" containing the test file.
+function! ale#test#SetFilename(path) abort
+    let l:dir = get(g:, 'dir', '')
+
+    if empty(l:dir)
+        let l:dir = getcwd()
+    endif
+
+    silent noautocmd execute 'file ' . fnameescape(simplify(l:dir . '/' . a:path))
+endfunction

test/command_callback/test_brakeman_command_callback.vader

@@ -1,26 +1,42 @@
 Before:
+  Save g:ale_ruby_brakeman_options
+
   runtime ale_linters/ruby/brakeman.vim
 
+  let g:ale_ruby_brakeman_options = ''
+
+  silent! cd /testplugin/test/command_callback
+  let g:dir = getcwd()
+
 After:
+  Restore
+
+  silent execute 'cd ' . fnameescape(g:dir)
+  unlet! g:dir
+
   call ale#linter#Reset()
 
 Execute(The brakeman command callback should detect absence of a valid Rails app):
-    cd /testplugin/test/ruby_fixtures/not_a_rails_app/
+  call ale#test#SetFilename('../ruby_fixtures/not_a_rails_app/test.rb')
+
   AssertEqual
   \   '',
   \   ale_linters#ruby#brakeman#GetCommand(bufnr(''))
 
 Execute(The brakeman command callback should find a valid Rails app root):
-    cd /testplugin/test/ruby_fixtures/valid_rails_app/db/
+  call ale#test#SetFilename('../ruby_fixtures/valid_rails_app/db/test.rb')
+
   AssertEqual
-    \   'brakeman -f json -q  -p /testplugin/test/ruby_fixtures/valid_rails_app',
+  \ 'brakeman -f json -q  -p '
+  \ . ale#Escape(simplify(g:dir . '/../ruby_fixtures/valid_rails_app')),
   \ ale_linters#ruby#brakeman#GetCommand(bufnr(''))
 
 Execute(The brakeman command callback should include configured options):
-    cd /testplugin/test/ruby_fixtures/valid_rails_app/db/
+  call ale#test#SetFilename('../ruby_fixtures/valid_rails_app/db/test.rb')
+
   let g:ale_ruby_brakeman_options = '--combobulate'
 
-
   AssertEqual
-    \   'brakeman -f json -q --combobulate -p /testplugin/test/ruby_fixtures/valid_rails_app',
+  \ 'brakeman -f json -q --combobulate -p '
+  \ . ale#Escape(simplify(g:dir . '/../ruby_fixtures/valid_rails_app')),
   \ ale_linters#ruby#brakeman#GetCommand(bufnr(''))

test/command_callback/test_cppcheck_command_callbacks.vader

@@ -5,36 +5,43 @@ Before:
 After:
   silent execute 'cd ' . fnameescape(b:dir)
   unlet! b:dir
+
   call ale#linter#Reset()
 
 Execute(The default C cppcheck command should be correct):
   runtime ale_linters/c/cppcheck.vim
 
+  call ale#test#SetFilename('cppcheck_paths/two/foo.cpp')
+
   AssertEqual
   \ 'cppcheck -q --language=c --enable=style %t',
   \ ale_linters#c#cppcheck#GetCommand(bufnr(''))
 
 Execute(cppcheck for C should detect compile_commands.json files):
   runtime ale_linters/c/cppcheck.vim
-  cd cppcheck_paths/one
+
+  call ale#test#SetFilename('cppcheck_paths/one/foo.cpp')
 
   AssertEqual
-  \ 'cd ' . shellescape(b:dir . '/cppcheck_paths/one') . ' && '
+  \ 'cd ' . ale#Escape(b:dir . '/cppcheck_paths/one') . ' && '
   \ . 'cppcheck -q --language=c --project=compile_commands.json --enable=style %t',
   \ ale_linters#c#cppcheck#GetCommand(bufnr(''))
 
 Execute(The default C++ cppcheck command should be correct):
   runtime ale_linters/cpp/cppcheck.vim
 
+  call ale#test#SetFilename('cppcheck_paths/two/foo.cpp')
+
   AssertEqual
   \ 'cppcheck -q --language=c++ --enable=style %t',
   \ ale_linters#cpp#cppcheck#GetCommand(bufnr(''))
 
 Execute(cppcheck for C++ should detect compile_commands.json files):
   runtime ale_linters/cpp/cppcheck.vim
-  cd cppcheck_paths/one
+
+  call ale#test#SetFilename('cppcheck_paths/one/foo.cpp')
 
   AssertEqual
-  \ 'cd ' . shellescape(b:dir . '/cppcheck_paths/one') . ' && '
+  \ 'cd ' . ale#Escape(b:dir . '/cppcheck_paths/one') . ' && '
   \ . 'cppcheck -q --language=c++ --project=compile_commands.json --enable=style %t',
   \ ale_linters#cpp#cppcheck#GetCommand(bufnr(''))

test/test_phpcs_executable_detection.vader

@@ -1,5 +1,9 @@
 Before:
+  Save g:ale_php_phpcs_executable
+  Save g:ale_php_phpcs_use_global
+
   let g:ale_php_phpcs_executable = 'phpcs_test'
+  let g:ale_php_phpcs_use_global = 0
 
   silent! cd /testplugin/test
   let g:dir = getcwd()
@@ -7,39 +11,32 @@ Before:
   runtime ale_linters/php/phpcs.vim
 
 After:
-  let g:ale_php_phpcs_executable = 'phpcs'
+  Restore
-  let g:ale_php_phpcs_use_global = 0
 
-  silent execute 'cd ' . g:dir
+  silent execute 'cd ' . fnameescape(g:dir)
   unlet! g:dir
 
   call ale#linter#Reset()
 
 Execute(project with phpcs should use local by default):
-  silent noautocmd new phpcs-test-files/project-with-phpcs/vendor/bin/phpcs
+  call ale#test#SetFilename('phpcs-test-files/project-with-phpcs/foo/test.php')
 
   AssertEqual
   \ g:dir . '/phpcs-test-files/project-with-phpcs/vendor/bin/phpcs',
   \ ale_linters#php#phpcs#GetExecutable(bufnr(''))
 
-  :q
-
 Execute(use-global should override local detection):
   let g:ale_php_phpcs_use_global = 1
 
-  silent noautocmd new phpcs-test-files/project-with-phpcs/vendor/bin/phpcs
+  call ale#test#SetFilename('phpcs-test-files/project-with-phpcs/foo/test.php')
 
   AssertEqual
   \ 'phpcs_test',
   \ ale_linters#php#phpcs#GetExecutable(bufnr(''))
 
-  :q
-
 Execute(project without phpcs should use global):
-  silent noautocmd new phpcs-test-files/project-without-phpcs/vendor/bin/phpcs
+  call ale#test#SetFilename('phpcs-test-files/project-without-phpcs/foo/test.php')
 
   AssertEqual
   \ 'phpcs_test',
   \ ale_linters#php#phpcs#GetExecutable(bufnr(''))
-
-  :q