Add tests & Fix tests

Author: aiya000

test/scratch_buffer.vim

@@ -6,21 +6,15 @@ function! s:suite.before() abort
 endfunction
 
 function! s:suite.before_each() abort
-  " Clean all created scratch files
-  for i in range(0, 100000)
-    let file = printf(g:scratch_buffer_tmp_file_pattern, i)
-    if !filereadable(expand(file))
-      return
-    endif
-    call delete(file)
-  endfor
+  " Clean all created scratch files and buffers
+  ScratchBufferCleanAllOf md
 endfunction
 
 function! s:suite.can_make_buffer() abort
   ScratchBufferOpen md
 
   const current_file_name = expand('%:p')
-  const expected = printf(g:scratch_buffer_tmp_file_pattern, 0)
+  const expected = printf(g:scratch_buffer_tmp_file_pattern, 0) .. '.md'
   call s:expect(current_file_name).to_equal(expected)
 endfunction
 
@@ -30,7 +24,7 @@ function! s:suite.can_make_multiple_buffer() abort
   ScratchBufferOpen md
 
   const current_file_name = expand('%:p')
-  const expected = printf(g:scratch_buffer_tmp_file_pattern, 3)
+  const expected = printf(g:scratch_buffer_tmp_file_pattern, 2) .. '.md'
   call s:expect(current_file_name).to_equal(expected)
 endfunction
 
@@ -43,3 +37,36 @@ function! s:suite.accept_buffer_size() abort
   ScratchBufferOpen md sp 5
   ScratchBufferOpen md vsp 50
 endfunction
+
+function! s:suite.wipes_opened_files_and_buffer() abort
+  ScratchBufferOpen md
+  write
+  ScratchBufferOpen md
+
+  const all_buffer_names = scratch_buffer#helper#get_all_buffer_names()
+
+  const first_file = printf(g:scratch_buffer_tmp_file_pattern, 0) .. '.md'
+  call s:expect(filereadable(first_file)).to_equal(1)
+  call s:expect(
+    \ all_buffer_names->scratch_buffer#helper#contains(first_file),
+  \ ).not.to_equal(-1)
+
+  const second_file = printf(g:scratch_buffer_tmp_file_pattern, 0) .. '.md'
+  call s:expect(filereadable(second_file)).not.to_equal(1)
+  call s:expect(
+   \ all_buffer_names->scratch_buffer#helper#contains(second_file),
+  \ ).not.to_equal(-1)
+
+  " Wipe all
+  ScratchBufferCleanAllOf
+  const new_all_buffer_names = scratch_buffer#helper#get_all_buffer_names()
+
+  call s:expect(filereadable(first_file)).not.to_equal(1)
+  call s:expect(
+    \ new_all_buffer_names->scratch_buffer#helper#contains(first_file),
+  \ ).not.to_equal(-1)
+
+  call s:expect(
+    \ new_all_buffer_names->scratch_buffer#helper#contains(second_file),
+  \ ).not.to_equal(-1)
+endfunction