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Before:
  call ale#test#SetDirectory('/testplugin/test')
  call ale#test#SetFilename('dummy.txt')

  let g:old_filename = expand('%:p')
  let g:Callback = ''
  let g:expr_list = []
  let g:message_list = []
  let g:handle_code_action_called = 0
  let g:code_actions = []
  let g:options = {}
  let g:capability_checked = ''
  let g:conn_id = v:null
  let g:InitCallback = v:null

  runtime autoload/ale/lsp_linter.vim
  runtime autoload/ale/lsp.vim
  runtime autoload/ale/util.vim
  runtime autoload/ale/rename.vim
  runtime autoload/ale/code_action.vim

  function! ale#lsp_linter#StartLSP(buffer, linter, Callback) abort
    let g:conn_id = ale#lsp#Register('executable', '/foo/bar', {})
    call ale#lsp#MarkDocumentAsOpen(g:conn_id, a:buffer)

    if a:linter.lsp is# 'tsserver'
        call ale#lsp#MarkConnectionAsTsserver(g:conn_id)
    endif

    let l:details = {
    \ 'command': 'foobar',
    \ 'buffer': a:buffer,
    \ 'connection_id': g:conn_id,
    \ 'project_root': '/foo/bar',
    \}

    let g:InitCallback = {-> ale#lsp_linter#OnInit(a:linter, l:details, a:Callback)}
  endfunction

  function! ale#lsp#HasCapability(conn_id, capability) abort
    let g:capability_checked = a:capability

    return 1
  endfunction

  function! ale#lsp#RegisterCallback(conn_id, callback) abort
    let g:Callback = a:callback
  endfunction

  function! ale#lsp#Send(conn_id, message) abort
    call add(g:message_list, a:message)

    return 42
  endfunction

  function! ale#util#Execute(expr) abort
    call add(g:expr_list, a:expr)
  endfunction

  function! ale#code_action#HandleCodeAction(code_action, options) abort
    let g:handle_code_action_called = 1
    Assert get(a:options, 'should_save')
    call add(g:code_actions, a:code_action)
  endfunction

  function! ale#util#Input(message, value) abort
    return 'a-new-name'
  endfunction

  call ale#rename#SetMap({
  \  3: {
  \    'old_name': 'oldName',
  \    'new_name': 'aNewName',
  \  },
  \})

After:
  if g:conn_id isnot v:null
    call ale#lsp#RemoveConnectionWithID(g:conn_id)
  endif

  call ale#rename#SetMap({})
  call ale#test#RestoreDirectory()
  call ale#linter#Reset()

  unlet! g:capability_checked
  unlet! g:InitCallback
  unlet! g:old_filename
  unlet! g:conn_id
  unlet! g:Callback
  unlet! g:message_list
  unlet! g:expr_list
  unlet! b:ale_linters
  unlet! g:options
  unlet! g:code_actions
  unlet! g:handle_code_action_called

  runtime autoload/ale/lsp_linter.vim
  runtime autoload/ale/lsp.vim
  runtime autoload/ale/util.vim
  runtime autoload/ale/rename.vim
  runtime autoload/ale/code_action.vim

Execute(Other messages for the tsserver handler should be ignored):
  call ale#rename#HandleTSServerResponse(1, {'command': 'foo'})
  AssertEqual g:handle_code_action_called, 0

Execute(Failed rename responses should be handled correctly):
  call ale#rename#SetMap({3: {'old_name': 'oldName', 'new_name': 'a-test'}})
  call ale#rename#HandleTSServerResponse(
  \ 1,
  \ {'command': 'rename', 'request_seq': 3}
  \)
  AssertEqual g:handle_code_action_called, 0

Given typescript(Some typescript file):
  foo
  somelongerline
  bazxyzxyzxyz

Execute(Code actions from tsserver should be handled):
  call ale#rename#HandleTSServerResponse(1, {
  \ 'command': 'rename',
  \ 'request_seq': 3,
  \ 'success': v:true,
  \ 'body': {
  \   'locs': [
  \     {
  \       'file': '/foo/bar/file1.ts',
  \       'locs': [
  \          {
  \            'start': {
  \              'line': 1,
  \              'offset': 2,
  \            },
  \            'end': {
  \              'line': 3,
  \              'offset': 4,
  \            },
  \          },
  \       ],
  \     },
  \     {
  \       'file': '/foo/bar/file2.ts',
  \       'locs': [
  \         {
  \           'start': {
  \             'line': 10,
  \             'offset': 20,
  \           },
  \            'end': {
  \              'line': 30,
  \              'offset': 40,
  \            },
  \         },
  \       ],
  \     },
  \   ]
  \ },
  \})

  AssertEqual
  \ [
  \   {
  \     'description': 'rename',
  \     'changes': [
  \       {
  \         'fileName': '/foo/bar/file1.ts',
  \         'textChanges': [
  \            {
  \              'start': {
  \                'line': 1,
  \                'offset': 2,
  \              },
  \              'end': {
  \                'line': 3,
  \                'offset': 4,
  \              },
  \              'newText': 'aNewName',
  \            },
  \         ],
  \       },
  \       {
  \         'fileName': '/foo/bar/file2.ts',
  \         'textChanges': [
  \           {
  \             'start': {
  \               'line': 10,
  \               'offset': 20,
  \             },
  \              'end': {
  \                'line': 30,
  \                'offset': 40,
  \              },
  \              'newText': 'aNewName',
  \           },
  \         ],
  \       },
  \     ],
  \   }
  \ ],
  \ g:code_actions

Execute(HandleTSServerResponse does nothing when no data in rename_map):
  call ale#rename#HandleTSServerResponse(1, {
  \ 'command': 'rename',
  \ 'request_seq': -9,
  \ 'success': v:true,
  \ 'body': {}
  \})

  AssertEqual g:handle_code_action_called, 0

Execute(Prints a tsserver error message when unsuccessful):
  call ale#rename#HandleTSServerResponse(1, {
  \ 'command': 'rename',
  \ 'request_seq': 3,
  \ 'success': v:false,
  \ 'message': 'This symbol cannot be renamed',
  \})

  AssertEqual g:handle_code_action_called, 0
  AssertEqual ['echom ''Error renaming "oldName" to: "aNewName". ' .
  \ 'Reason: This symbol cannot be renamed'''], g:expr_list

Execute(Does nothing when no changes):
  call ale#rename#HandleTSServerResponse(1, {
  \ 'command': 'rename',
  \ 'request_seq': 3,
  \ 'success': v:true,
  \ 'body': {
  \   'locs': []
  \ }
  \})

  AssertEqual g:handle_code_action_called, 0
  AssertEqual ['echom ''Error renaming "oldName" to: "aNewName"'''], g:expr_list

Execute(tsserver rename requests should be sent):
  call ale#rename#SetMap({})
  call ale#linter#Reset()

  runtime ale_linters/typescript/tsserver.vim
  call setpos('.', [bufnr(''), 2, 5, 0])

  ALERename

  " We shouldn't register the callback yet.
  AssertEqual '''''', string(g:Callback)

  AssertEqual type(function('type')), type(g:InitCallback)
  call g:InitCallback()

  AssertEqual 'rename', g:capability_checked
  AssertEqual
  \ 'function(''ale#rename#HandleTSServerResponse'')',
  \ string(g:Callback)
  AssertEqual
  \ [
  \   ale#lsp#tsserver_message#Change(bufnr('')),
  \   [0, 'ts@rename', {
  \     'file': expand('%:p'),
  \     'line': 2,
  \     'offset': 5,
  \     'arguments': {
  \         'findInComments': g:ale_rename_tsserver_find_in_comments,
  \         'findInStrings': g:ale_rename_tsserver_find_in_strings,
  \     },
  \   }]
  \ ],
  \ g:message_list
  AssertEqual {'42': {'old_name': 'somelongerline', 'new_name': 'a-new-name'}},
  \ ale#rename#GetMap()

Given python(Some Python file):
  foo
  somelongerline
  bazxyzxyzxyz

Execute(Code actions from LSP should be handled):
  call ale#rename#HandleLSPResponse(1, {
  \ 'id': 3,
  \ 'result': {
  \   'changes': {
  \     'file:///foo/bar/file1.ts': [
  \       {
  \         'range': {
  \           'start': {
  \             'line': 1,
  \             'character': 2,
  \           },
  \           'end': {
  \             'line': 3,
  \             'character': 4,
  \           },
  \         },
  \         'newText': 'bla123'
  \       },
  \     ],
  \   },
  \ },
  \})

  AssertEqual
  \ [
  \   {
  \     'description': 'rename',
  \     'changes': [
  \       {
  \         'fileName': '/foo/bar/file1.ts',
  \         'textChanges': [
  \            {
  \              'start': {
  \                'line': 2,
  \                'offset': 3,
  \              },
  \              'end': {
  \                'line': 4,
  \                'offset': 5,
  \              },
  \              'newText': 'bla123',
  \            },
  \         ],
  \       },
  \     ],
  \   }
  \ ],
  \ g:code_actions

Execute(DocumentChanges from LSP should be handled):
  call ale#rename#HandleLSPResponse(1, {
  \ 'id': 3,
  \ 'result': {
  \   'documentChanges': [
  \     {
  \       'textDocument': {
  \         'version': 1.0,
  \         'uri': 'file:///foo/bar/file1.ts',
  \       },
  \       'edits': [
  \         {
  \           'range': {
  \             'start': {
  \               'line': 1,
  \               'character': 2,
  \             },
  \             'end': {
  \               'line': 3,
  \               'character': 4,
  \             },
  \           },
  \           'newText': 'bla123',
  \         },
  \       ],
  \     },
  \   ],
  \ },
  \})

  AssertEqual
  \ [
  \   {
  \     'description': 'rename',
  \     'changes': [
  \       {
  \         'fileName': '/foo/bar/file1.ts',
  \         'textChanges': [
  \            {
  \              'start': {
  \                'line': 2,
  \                'offset': 3,
  \              },
  \              'end': {
  \                'line': 4,
  \                'offset': 5,
  \              },
  \              'newText': 'bla123',
  \            },
  \         ],
  \       },
  \     ],
  \   }
  \ ],
  \ g:code_actions

Execute(Single DocumentChange from LSP should be handled):
  call ale#rename#HandleLSPResponse(1, {
  \ 'id': 3,
  \ 'result': {
  \   'documentChanges': {
  \     'textDocument': {
  \       'version': 1.0,
  \       'uri': 'file:///foo/bar/file1.ts',
  \     },
  \     'edits': [
  \       {
  \         'range': {
  \           'start': {
  \             'line': 1,
  \             'character': 2,
  \           },
  \           'end': {
  \             'line': 3,
  \             'character': 4,
  \           },
  \         },
  \         'newText': 'bla123',
  \       },
  \     ],
  \   },
  \ },
  \})

  AssertEqual
  \ [
  \   {
  \     'description': 'rename',
  \     'changes': [
  \       {
  \         'fileName': '/foo/bar/file1.ts',
  \         'textChanges': [
  \            {
  \              'start': {
  \                'line': 2,
  \                'offset': 3,
  \              },
  \              'end': {
  \                'line': 4,
  \                'offset': 5,
  \              },
  \              'newText': 'bla123',
  \            },
  \         ],
  \       },
  \     ],
  \   }
  \ ],
  \ g:code_actions
Execute(LSP should perform no action when no result):
  call ale#rename#HandleLSPResponse(1, {
  \ 'id': 3,
  \})

  AssertEqual g:handle_code_action_called, 0
  AssertEqual ['echom ''No rename result received from server'''], g:expr_list

Execute(LSP should perform no action when no changes):
  call ale#rename#HandleLSPResponse(1, {
  \ 'id': 3,
  \ 'result': {},
  \})

  AssertEqual g:handle_code_action_called, 0
  AssertEqual ['echom ''No changes received from server'''], g:expr_list

Execute(LSP should perform no action when changes is empty):
  call ale#rename#HandleLSPResponse(1, {
  \ 'id': 3,
  \ 'result': {
  \   'changes': [],
  \ },
  \})

  AssertEqual g:handle_code_action_called, 0
  AssertEqual ['echom ''No changes received from server'''], g:expr_list

Execute(LSP rename requests should be sent):
  call ale#rename#SetMap({})
  runtime ale_linters/python/pyls.vim
  let b:ale_linters = ['pyls']
  call setpos('.', [bufnr(''), 1, 5, 0])

  ALERename

  " We shouldn't register the callback yet.
  AssertEqual '''''', string(g:Callback)

  AssertEqual type(function('type')), type(g:InitCallback)
  call g:InitCallback()

  AssertEqual 'rename', g:capability_checked
  AssertEqual
  \ 'function(''ale#rename#HandleLSPResponse'')',
  \ string(g:Callback)

  AssertEqual
  \ [
  \   [1, 'textDocument/didChange', {
  \     'textDocument': {
  \         'uri': ale#path#ToURI(expand('%:p')),
  \         'version': g:ale_lsp_next_version_id - 1,
  \     },
  \     'contentChanges': [{'text': join(getline(1, '$'), "\n") . "\n"}]
  \   }],
  \   [0, 'textDocument/rename', {
  \   'textDocument': {'uri': ale#path#ToURI(expand('%:p'))},
  \   'position': {'line': 0, 'character': 2},
  \   'newName': 'a-new-name',
  \   }],
  \ ],
  \ g:message_list

  AssertEqual {'42': {'old_name': 'foo', 'new_name': 'a-new-name'}},
  \ ale#rename#GetMap()