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captcha_spec.lua
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captcha_spec.lua
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--[[
Tests for src/middleware/captcha.lua
Tests pending captcha blocking, no captcha pass-through.
]]
describe('middleware.captcha', function()
local captcha_mw
local test_helper = require('spec.helpers.test_helper')
local env, ctx, message
before_each(function()
package.loaded['src.middleware.captcha'] = nil
package.loaded['src.core.session'] = {
get_captcha = function(chat_id, user_id)
local redis = env.redis
local hash = string.format('chat:%s:captcha:%s', tostring(chat_id), tostring(user_id))
local text = redis.hget(hash, 'text')
if not text then return nil end
return { text = text, message_id = redis.hget(hash, 'id') }
end,
}
captcha_mw = require('src.middleware.captcha')
env = test_helper.setup()
message = test_helper.make_message()
ctx = test_helper.make_ctx(env)
end)
after_each(function()
test_helper.teardown(env)
end)
describe('name', function()
it('should be "captcha"', function()
assert.are.equal('captcha', captcha_mw.name)
end)
end)
describe('non-group messages', function()
it('should pass through for private messages', function()
ctx.is_group = false
local _, should_continue = captcha_mw.run(ctx, message)
assert.is_true(should_continue)
end)
end)
describe('no from', function()
it('should pass through when no from', function()
message.from = nil
local _, should_continue = captcha_mw.run(ctx, message)
assert.is_true(should_continue)
end)
end)
describe('no pending captcha', function()
it('should pass through when user has no pending captcha', function()
local _, should_continue = captcha_mw.run(ctx, message)
assert.is_true(should_continue)
end)
end)
describe('pending captcha', function()
before_each(function()
-- Set up a pending captcha
local hash = string.format('chat:%s:captcha:%s', message.chat.id, message.from.id)
env.redis.hset(hash, 'text', 'ABCD')
env.redis.hset(hash, 'id', '42')
end)
it('should block regular messages from unverified users', function()
local _, should_continue = captcha_mw.run(ctx, message)
assert.is_false(should_continue)
end)
it('should delete blocked messages', function()
captcha_mw.run(ctx, message)
test_helper.assert_api_called(env.api, 'delete_message')
end)
it('should delete the correct message', function()
message.message_id = 99
captcha_mw.run(ctx, message)
local call = env.api.get_call('delete_message')
assert.are.equal(message.chat.id, call.args[1])
assert.are.equal(99, call.args[2])
end)
it('should allow new_chat_members messages even with pending captcha', function()
message.new_chat_members = { { id = message.from.id } }
local _, should_continue = captcha_mw.run(ctx, message)
assert.is_true(should_continue)
end)
it('should not delete new_chat_members messages', function()
message.new_chat_members = { { id = message.from.id } }
captcha_mw.run(ctx, message)
test_helper.assert_api_not_called(env.api, 'delete_message')
end)
end)
describe('run interface', function()
it('should be a valid middleware', function()
assert.are.equal('table', type(captcha_mw))
assert.are.equal('function', type(captcha_mw.run))
end)
end)
end)

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