Fix the test issues with html-beautify

autoload/ale/assert.vim

@@ -267,14 +267,22 @@ function! ale#assert#TearDownLinterTest() abort
     endif
 endfunction
 
-function! ale#assert#SetUpFixerTest(filetype, name) abort
+function! ale#assert#SetUpFixerTest(filetype, name, ...) abort
+    " If the suffix of the option names format is different, an additional
+    " argument can be used for that instead.
+    if a:0 > 1
+        throw 'Too many arguments'
+    endif
+
     " Set up a marker so ALE doesn't create real random temporary filenames.
     let g:ale_create_dummy_temporary_file = 1
 
     let l:function_name = ale#fix#registry#GetFunc(a:name)
     let s:FixerFunction = function(l:function_name)
 
-    let l:prefix = 'ale_' . a:filetype . '_' . a:name
+    let l:option_suffix = get(a:000, 0, a:name)
+    let l:prefix = 'ale_' . a:filetype . '_'
+    \   . substitute(l:option_suffix, '-', '_', 'g')
     let b:filter_expr = 'v:val[: len(l:prefix) - 1] is# l:prefix'
 
     for l:key in filter(keys(g:), b:filter_expr)
@@ -286,7 +294,7 @@ function! ale#assert#SetUpFixerTest(filetype, name) abort
         unlet b:[l:key]
     endfor
 
-    execute 'runtime autoload/ale/fixers/' . a:name . '.vim'
+    execute 'runtime autoload/ale/fixers/' . substitute(a:name, '-', '_', 'g') . '.vim'
 
     if !exists('g:dir')
         call ale#test#SetDirectory('/testplugin/test/fixers')

doc/ale-supported-languages-and-tools.txt

@@ -194,6 +194,7 @@ Notes:
 * HTML
   * `alex`!!
   * `fecs`
+  * `html-beautify`
   * `HTMLHint`
   * `prettier`
   * `proselint`

test/fixers/test_html_beautify_fixer_callback.vader

@@ -1,31 +1,16 @@
 Before:
-  Save g:ale_html_beautify_executable
-  Save g:ale_html_beautify_options
-
-  let g:ale_html_beautify_options = ''
+  call ale#assert#SetUpFixerTest('html', 'html-beautify', 'beautify')
 
   call ale#test#SetDirectory('/testplugin/test/fixers')
   silent cd ..
   silent cd command_callback
-  let g:dir = getcwd()
 
 After:
   Restore
 
-  unlet! b:bin_dir
-
-  call ale#test#RestoreDirectory()
-
-Execute(The html-beautify callback should return 0 if html-beautify not found):
-  let g:ale_html_beautify_executable = 'xxxinvalidpath'
-  AssertEqual
-  \ 0,
-  \ ale#fixers#html_beautify#Fix(bufnr(''))
+  call ale#assert#TearDownFixerTest()
 
 Execute(The html-beautify callback should return the correct default command):
   AssertEqual
-  \ {
-  \   'command': ale#Escape('html_beautify_paths/html-beautify')
-  \     . ' -'
-  \ },
+  \ {'command': '''html-beautify''  -'},
   \ ale#fixers#html_beautify#Fix(bufnr(''))