1func s:test_expand_dllpath(optname)
2  let $TEST_EXPAND_DLLPATH = '/dllpath/lib' . substitute(a:optname, '\zedll$', '.', '')
3  execute 'let dllpath_save = &' . a:optname
4  try
5    execute 'set ' . a:optname . '=$TEST_EXPAND_DLLPATH'
6    execute 'call assert_equal("' . $TEST_EXPAND_DLLPATH . '", &' . a:optname . ')'
7
8    execute 'set ' . a:optname . '=~' . $TEST_EXPAND_DLLPATH
9    let home = substitute($HOME, '\\', '/', 'g')
10    execute 'call assert_equal("' . home . $TEST_EXPAND_DLLPATH . '", &' . a:optname . ')'
11  finally
12    execute 'let &' . a:optname . ' = dllpath_save'
13    let $TEST_EXPAND_DLLPATH = ''
14  endtry
15endfunc
16
17func s:generate_test_if_exists(optname)
18  if exists('+' . a:optname)
19    execute join([
20          \ 'func Test_expand_' . a:optname . '()',
21          \ '  call s:test_expand_dllpath("' . a:optname . '")',
22          \ 'endfunc'
23          \ ], "\n")
24  endif
25endfunc
26
27call s:generate_test_if_exists('luadll')
28call s:generate_test_if_exists('perldll')
29call s:generate_test_if_exists('pythondll')
30call s:generate_test_if_exists('pythonthreedll')
31call s:generate_test_if_exists('rubydll')
32call s:generate_test_if_exists('tcldll')
33