ahmad/biscuit

local formatters = require('biscuit.formatters')

describe('biscuit.formatters', function()
  before_each(function()
    require('biscuit').setup({ auto_save = false })
  end)

  it('should only request formatting once per buffer even with multiple formatting clients', function()
    local bufnr = vim.api.nvim_create_buf(true, false)
    vim.bo[bufnr].buflisted = true

    local original_list_bufs = vim.api.nvim_list_bufs
    local original_buf_is_loaded = vim.api.nvim_buf_is_loaded
    local original_get_clients = vim.lsp.get_clients
    local original_buf_request = vim.lsp.buf_request
    local original_defer_fn = vim.defer_fn
    local original_notify = vim.notify

    local requests = 0

    vim.api.nvim_list_bufs = function()
      return { bufnr }
    end

    vim.api.nvim_buf_is_loaded = function(candidate)
      return candidate == bufnr
    end

    vim.lsp.get_clients = function(opts)
      if opts and opts.bufnr == bufnr then
        return {
          { supports_method = function(method) return method == 'textDocument/formatting' end },
          { supports_method = function(method) return method == 'textDocument/formatting' end },
        }
      end
      return {}
    end

    vim.lsp.buf_request = function(candidate, method, params, callback)
      requests = requests + 1