slack_mattermost_emoji/spec/slack_client_spec.rb

require "dotenv/load"
require "slack_mattermost_emoji/slack_client"

RSpec.describe SlackMattermostEmoji::SlackClient do
  it 'should raise if credentials are missing' do
    expect do
       SlackMattermostEmoji::SlackClient.new(
        username: '',
        password: '',
        domain: '',
      )
    end.to raise_error('Slack username, password, and domain are all required')
  end

  it 'should be able to log in to slack using the provided credentials' do
    client = SlackMattermostEmoji::SlackClient.new(
      username: ENV['SLACK_USERNAME'],
      password: ENV['SLACK_PASSWORD'],
      domain: ENV['SLACK_DOMAIN'],
      log: false,
    )
    client.authenticate

    expect(client.authenticated?).to be true
  end

  it 'should handle a bad credentials error' do
    client = SlackMattermostEmoji::SlackClient.new(
      username: ENV['SLACK_USERNAME'],
      password: 'wrongpassword',
      domain: ENV['SLACK_DOMAIN'],
      log: false,
    )
    expect { client.authenticate }.to raise_error('Invalid Slack credentials')
  end

  it 'should download emoji from slack' do
    download_path = File.expand_path('~/Desktop/slack-emoji')
    FileUtils.rm_rf(download_path) if Dir.exist?(download_path)

    client = SlackMattermostEmoji::SlackClient.new(
      username: ENV['SLACK_USERNAME'],
      password: ENV['SLACK_PASSWORD'],
      domain: ENV['SLACK_DOMAIN'],
      download_path: download_path,
      log: false,
    )
    client.authenticate

    emoji = client.download_emoji
    emoji.each do |name, image_url|
      next if URI(image_url).scheme == 'alias'

      extension = File.extname(image_url)
      file_name = "#{name}#{extension}"
      file_path = File.join(download_path, file_name)
      expect(File.exist?(file_path)).to be true
    end
  end
end