lsp_spec.lua

---@diagnostic disable: undefined-field, undefined-global
require('plugin.guard')
local api = vim.api
local same = assert.are.same
local ft = require('guard.filetype')
local gapi = require('guard.api')

describe('format module', function()
  local bufnr
  local ill_c = {
    'int main(     void ) {return 0;}',
  }

  before_each(function()
    for k, _ in pairs(ft) do
      ft[k] = nil
    end
    vim.g.guard_config = {
      lsp_as_default_formatter = true,
    }

    vim.lsp.config('clangd', {
      cmd = { 'clangd' },
      filetypes = { 'c' },
      capabilities = {
        textDocument = {
          formatting = {
            dynamicRegistration = true,
          },
        },
      },
    })
    vim.lsp.enable('clangd')

    bufnr = api.nvim_create_buf(true, false)

    vim.bo[bufnr].filetype = 'c'
    api.nvim_set_current_buf(bufnr)
    vim.cmd('silent! write! /tmp/lsp_spec_test.c')
  end)

  after_each(function()
    vim.lsp.enable('clangd', false)
  end)

  local function getlines()
    return api.nvim_buf_get_lines(bufnr, 0, -1, false)
  end

  local function setlines(lines)
    api.nvim_buf_set_lines(bufnr, 0, -1, false, lines)
  end

  it('lsp default formatter works', function()
    setlines(ill_c)
    vim.api.nvim_create_autocmd('LspAttach', {
      callback = function(args)
        same(args.buf, bufnr)
        same(args.file, '/tmp/lsp_spec_test.c')
        same(args.match, '/tmp/lsp_spec_test.c')
        gapi.fmt(bufnr)
        vim.wait(500)
        same({ 'int main(void) { return 0; }' }, getlines())
      end,
    })
    vim.wait(1500)
  end)
end)