feat: async scraper

This commit is contained in:
Barrett Ruth 2025-09-22 22:59:57 -04:00
parent 53562eb6a8
commit a32fd396d3
12 changed files with 1527 additions and 474 deletions

25
lua/cp/async/init.lua Normal file
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@ -0,0 +1,25 @@
local M = {}
local active_operation = nil
function M.start_contest_operation(operation_name)
if active_operation then
error(
("Contest operation '%s' already active, cannot start '%s'"):format(
active_operation,
operation_name
)
)
end
active_operation = operation_name
end
function M.finish_contest_operation()
active_operation = nil
end
function M.get_active_operation()
return active_operation
end
return M

44
lua/cp/async/jobs.lua Normal file
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local M = {}
local current_jobs = {}
function M.start_job(job_id, args, opts, callback)
opts = opts or {}
if current_jobs[job_id] then
current_jobs[job_id]:kill(9)
current_jobs[job_id] = nil
end
local job = vim.system(args, opts, function(result)
current_jobs[job_id] = nil
callback(result)
end)
current_jobs[job_id] = job
return job
end
function M.kill_job(job_id)
if current_jobs[job_id] then
current_jobs[job_id]:kill(9)
current_jobs[job_id] = nil
end
end
function M.kill_all_jobs()
for job_id, job in pairs(current_jobs) do
job:kill(9)
end
current_jobs = {}
end
function M.get_active_jobs()
local active = {}
for job_id, _ in pairs(current_jobs) do
table.insert(active, job_id)
end
return active
end
return M

202
lua/cp/async/scraper.lua Normal file
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local M = {}
local cache = require('cp.cache')
local jobs = require('cp.async.jobs')
local utils = require('cp.utils')
local function check_internet_connectivity()
local result = vim.system({ 'ping', '-c', '5', '-W', '3', '8.8.8.8' }, { text = true }):wait()
return result.code == 0
end
function M.scrape_contest_metadata_async(platform, contest_id, callback)
vim.validate({
platform = { platform, 'string' },
contest_id = { contest_id, 'string' },
callback = { callback, 'function' },
})
cache.load()
local cached_data = cache.get_contest_data(platform, contest_id)
if cached_data then
callback({
success = true,
problems = cached_data.problems,
})
return
end
if not check_internet_connectivity() then
callback({
success = false,
error = 'No internet connection available',
})
return
end
if not utils.setup_python_env() then
callback({
success = false,
error = 'Python environment setup failed',
})
return
end
local plugin_path = utils.get_plugin_path()
local args = {
'uv',
'run',
'--directory',
plugin_path,
'-m',
'scrapers.' .. platform,
'metadata',
contest_id,
}
local job_id = 'contest_metadata_' .. platform .. '_' .. contest_id
jobs.start_job(job_id, args, {
cwd = plugin_path,
text = true,
timeout = 30000,
}, function(result)
if result.code ~= 0 then
callback({
success = false,
error = 'Failed to run metadata scraper: ' .. (result.stderr or 'Unknown error'),
})
return
end
local ok, data = pcall(vim.json.decode, result.stdout)
if not ok then
callback({
success = false,
error = 'Failed to parse metadata scraper output: ' .. tostring(data),
})
return
end
if not data.success then
callback(data)
return
end
local problems_list = data.problems or {}
cache.set_contest_data(platform, contest_id, problems_list)
callback({
success = true,
problems = problems_list,
})
end)
end
function M.scrape_problem_async(platform, contest_id, problem_id, callback)
vim.validate({
platform = { platform, 'string' },
contest_id = { contest_id, 'string' },
problem_id = { problem_id, 'string' },
callback = { callback, 'function' },
})
if not check_internet_connectivity() then
callback({
success = false,
problem_id = problem_id,
error = 'No internet connection available',
})
return
end
if not utils.setup_python_env() then
callback({
success = false,
problem_id = problem_id,
error = 'Python environment setup failed',
})
return
end
local plugin_path = utils.get_plugin_path()
local args = {
'uv',
'run',
'--directory',
plugin_path,
'-m',
'scrapers.' .. platform,
'tests',
contest_id,
problem_id,
}
local job_id = 'problem_tests_' .. platform .. '_' .. contest_id .. '_' .. problem_id
jobs.start_job(job_id, args, {
cwd = plugin_path,
text = true,
timeout = 30000,
}, function(result)
if result.code ~= 0 then
callback({
success = false,
problem_id = problem_id,
error = 'Failed to run tests scraper: ' .. (result.stderr or 'Unknown error'),
})
return
end
local ok, data = pcall(vim.json.decode, result.stdout)
if not ok then
callback({
success = false,
problem_id = problem_id,
error = 'Failed to parse tests scraper output: ' .. tostring(data),
})
return
end
if not data.success then
callback(data)
return
end
if data.tests and #data.tests > 0 then
vim.fn.mkdir('io', 'p')
local cached_test_cases = {}
for i, test_case in ipairs(data.tests) do
table.insert(cached_test_cases, {
index = i,
input = test_case.input,
expected = test_case.expected,
})
end
cache.set_test_cases(
platform,
contest_id,
problem_id,
cached_test_cases,
data.timeout_ms,
data.memory_mb
)
end
callback({
success = true,
problem_id = problem_id,
test_count = data.tests and #data.tests or 0,
test_cases = data.tests,
timeout_ms = data.timeout_ms,
memory_mb = data.memory_mb,
url = data.url,
})
end)
end
return M

271
lua/cp/async/setup.lua Normal file
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@ -0,0 +1,271 @@
local M = {}
local async = require('cp.async')
local async_scraper = require('cp.async.scraper')
local cache = require('cp.cache')
local config_module = require('cp.config')
local logger = require('cp.log')
local problem = require('cp.problem')
local state = require('cp.state')
function M.setup_contest_async(contest_id, language)
if not state.get_platform() then
logger.log('no platform set', vim.log.levels.ERROR)
return
end
async.start_contest_operation('contest_setup')
local config = config_module.get_config()
local platform = state.get_platform() or ''
if not vim.tbl_contains(config.scrapers, platform) then
logger.log('scraping disabled for ' .. platform, vim.log.levels.WARN)
async.finish_contest_operation()
return
end
logger.log(('setting up contest %s %s'):format(platform, contest_id))
async_scraper.scrape_contest_metadata_async(platform, contest_id, function(metadata_result)
if not metadata_result.success then
logger.log(
'failed to load contest metadata: ' .. (metadata_result.error or 'unknown error'),
vim.log.levels.ERROR
)
async.finish_contest_operation()
return
end
local problems = metadata_result.problems
if not problems or #problems == 0 then
logger.log('no problems found in contest', vim.log.levels.ERROR)
async.finish_contest_operation()
return
end
logger.log(('found %d problems'):format(#problems))
state.set_contest_id(contest_id)
M.setup_problem_async(contest_id, problems[1].id, language)
M.start_background_problem_scraping(contest_id, problems, config)
end)
end
function M.setup_problem_async(contest_id, problem_id, language)
if not state.get_platform() then
logger.log('no platform set. run :CP <platform> <contest> first', vim.log.levels.ERROR)
return
end
local config = config_module.get_config()
local problem_name = contest_id .. (problem_id or '')
logger.log(('setting up problem: %s'):format(problem_name))
local ctx =
problem.create_context(state.get_platform() or '', contest_id, problem_id, config, language)
local cached_test_cases = cache.get_test_cases(state.get_platform() or '', contest_id, problem_id)
if cached_test_cases then
state.set_test_cases(cached_test_cases)
logger.log(('using cached test cases (%d)'):format(#cached_test_cases))
elseif vim.tbl_contains(config.scrapers, state.get_platform() or '') then
logger.log('test cases not cached, will scrape in background...')
state.set_test_cases(nil)
async_scraper.scrape_problem_async(
state.get_platform() or '',
contest_id,
problem_id,
function(scrape_result)
if scrape_result.success then
local test_count = scrape_result.test_count or 0
logger.log(
('scraped %d test case(s) for %s'):format(test_count, scrape_result.problem_id)
)
state.set_test_cases(scrape_result.test_cases)
else
logger.log(
'scraping failed: ' .. (scrape_result.error or 'unknown error'),
vim.log.levels.ERROR
)
end
end
)
else
logger.log(('scraping disabled for %s'):format(state.get_platform() or ''))
state.set_test_cases(nil)
end
vim.cmd('silent only')
state.set_run_panel_active(false)
state.set_contest_id(contest_id)
state.set_problem_id(problem_id)
vim.cmd.e(ctx.source_file)
local source_buf = vim.api.nvim_get_current_buf()
if vim.api.nvim_buf_get_lines(source_buf, 0, -1, true)[1] == '' then
local constants = require('cp.constants')
local has_luasnip, luasnip = pcall(require, 'luasnip')
if has_luasnip then
local filetype = vim.api.nvim_get_option_value('filetype', { buf = source_buf })
local language_name = constants.filetype_to_language[filetype]
local canonical_language = constants.canonical_filetypes[language_name] or language_name
local prefixed_trigger = ('cp.nvim/%s.%s'):format(state.get_platform(), canonical_language)
vim.api.nvim_buf_set_lines(0, 0, -1, false, { prefixed_trigger })
vim.api.nvim_win_set_cursor(0, { 1, #prefixed_trigger })
vim.cmd.startinsert({ bang = true })
vim.schedule(function()
if luasnip.expandable() then
luasnip.expand()
else
vim.api.nvim_buf_set_lines(0, 0, 1, false, { '' })
vim.api.nvim_win_set_cursor(0, { 1, 0 })
end
vim.cmd.stopinsert()
end)
else
vim.api.nvim_input(('i%s<c-space><esc>'):format(state.get_platform()))
end
end
if config.hooks and config.hooks.setup_code then
config.hooks.setup_code(ctx)
end
cache.set_file_state(
vim.fn.expand('%:p'),
state.get_platform() or '',
contest_id,
problem_id,
language
)
logger.log(('switched to problem %s'):format(ctx.problem_name))
async.finish_contest_operation()
end
function M.start_background_problem_scraping(contest_id, problems, config)
cache.load()
local platform = state.get_platform() or ''
local missing_problems = {}
for _, prob in ipairs(problems) do
local cached_tests = cache.get_test_cases(platform, contest_id, prob.id)
if not cached_tests then
table.insert(missing_problems, prob)
end
end
if #missing_problems == 0 then
logger.log('all problems already cached')
return
end
logger.log(('scraping %d uncached problems in background...'):format(#missing_problems))
local success_count = 0
local failed_problems = {}
local total_problems = #missing_problems
for _, prob in ipairs(missing_problems) do
async_scraper.scrape_problem_async(platform, contest_id, prob.id, function(result)
if result.success then
success_count = success_count + 1
else
table.insert(failed_problems, prob.id)
end
local completed = success_count + #failed_problems
if completed == total_problems then
if #failed_problems > 0 then
logger.log(
('background scraping complete: %d/%d successful, failed: %s'):format(
success_count,
total_problems,
table.concat(failed_problems, ', ')
),
vim.log.levels.WARN
)
else
logger.log(
('background scraping complete: %d/%d successful'):format(success_count, total_problems)
)
end
end
end)
end
end
function M.handle_full_setup_async(cmd)
async.start_contest_operation('full_setup')
state.set_contest_id(cmd.contest)
local config = config_module.get_config()
if vim.tbl_contains(config.scrapers, cmd.platform) then
async_scraper.scrape_contest_metadata_async(cmd.platform, cmd.contest, function(metadata_result)
if not metadata_result.success then
logger.log(
'failed to load contest metadata: ' .. (metadata_result.error or 'unknown error'),
vim.log.levels.ERROR
)
async.finish_contest_operation()
return
end
logger.log(
('loaded %d problems for %s %s'):format(
#metadata_result.problems,
cmd.platform,
cmd.contest
),
vim.log.levels.INFO,
true
)
local problem_ids = vim.tbl_map(function(prob)
return prob.id
end, metadata_result.problems)
if not vim.tbl_contains(problem_ids, cmd.problem) then
logger.log(
("Invalid problem '%s' for contest %s %s"):format(cmd.problem, cmd.platform, cmd.contest),
vim.log.levels.ERROR
)
async.finish_contest_operation()
return
end
M.setup_problem_async(cmd.contest, cmd.problem, cmd.language)
end)
else
cache.load()
local contest_data = cache.get_contest_data(cmd.platform or '', cmd.contest)
if contest_data and contest_data.problems then
local problem_ids = vim.tbl_map(function(prob)
return prob.id
end, contest_data.problems)
if not vim.tbl_contains(problem_ids, cmd.problem) then
logger.log(
("Invalid problem '%s' for contest %s %s"):format(cmd.problem, cmd.platform, cmd.contest),
vim.log.levels.ERROR
)
async.finish_contest_operation()
return
end
M.setup_problem_async(cmd.contest, cmd.problem, cmd.language)
else
logger.log('no contest data available', vim.log.levels.ERROR)
async.finish_contest_operation()
end
end
end
return M

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@ -153,23 +153,25 @@ function M.handle_command(opts)
if cmd.type == 'contest_setup' then
local setup = require('cp.setup')
local async_setup = require('cp.async.setup')
if setup.set_platform(cmd.platform) then
setup.setup_contest(cmd.contest, cmd.language)
async_setup.setup_contest_async(cmd.contest, cmd.language)
end
return
end
if cmd.type == 'full_setup' then
local setup = require('cp.setup')
local async_setup = require('cp.async.setup')
if setup.set_platform(cmd.platform) then
setup.handle_full_setup(cmd)
async_setup.handle_full_setup_async(cmd)
end
return
end
if cmd.type == 'problem_switch' then
local setup = require('cp.setup')
setup.setup_problem(state.get_contest_id() or '', cmd.problem, cmd.language)
local async_setup = require('cp.async.setup')
async_setup.setup_problem_async(state.get_contest_id() or '', cmd.problem, cmd.language)
return
end
end

50
spec/async_init_spec.lua Normal file
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describe('cp.async.init', function()
local async
local spec_helper = require('spec.spec_helper')
before_each(function()
spec_helper.setup()
async = spec_helper.fresh_require('cp.async.init')
end)
after_each(function()
spec_helper.teardown()
end)
describe('contest operation guard', function()
it('allows starting operation when none active', function()
assert.has_no_errors(function()
async.start_contest_operation('test_operation')
end)
assert.equals('test_operation', async.get_active_operation())
end)
it('throws error when starting operation while one is active', function()
async.start_contest_operation('first_operation')
assert.has_error(function()
async.start_contest_operation('second_operation')
end, "Contest operation 'first_operation' already active, cannot start 'second_operation'")
end)
it('allows starting operation after finishing previous one', function()
async.start_contest_operation('first_operation')
async.finish_contest_operation()
assert.has_no_errors(function()
async.start_contest_operation('second_operation')
end)
assert.equals('second_operation', async.get_active_operation())
end)
it('correctly reports active operation status', function()
assert.is_nil(async.get_active_operation())
async.start_contest_operation('test_operation')
assert.equals('test_operation', async.get_active_operation())
async.finish_contest_operation()
assert.is_nil(async.get_active_operation())
end)
end)
end)

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@ -0,0 +1,288 @@
describe('async integration', function()
local cp
local spec_helper = require('spec.spec_helper')
local logged_messages = {}
before_each(function()
logged_messages = {}
local mock_logger = {
log = function(msg, level)
table.insert(logged_messages, { msg = msg, level = level })
end,
set_config = function() end,
}
package.loaded['cp.log'] = mock_logger
spec_helper.mock_async_scraper_success()
local mock_async = {
start_contest_operation = function() end,
finish_contest_operation = function() end,
get_active_operation = function()
return nil
end,
}
local mock_state = {
get_platform = function()
return 'atcoder'
end,
get_contest_id = function()
return 'abc123'
end,
set_platform = function() end,
set_contest_id = function() end,
set_problem_id = function() end,
set_test_cases = function() end,
set_run_panel_active = function() end,
}
local mock_config = {
setup = function()
return {}
end,
get_config = function()
return {
scrapers = { 'atcoder', 'codeforces' },
hooks = nil,
}
end,
}
local mock_cache = {
load = function() end,
get_contest_data = function()
return nil
end,
get_test_cases = function()
return nil
end,
set_file_state = function() end,
}
local mock_problem = {
create_context = function()
return {
source_file = '/test/source.cpp',
problem_name = 'abc123a',
}
end,
}
local mock_setup = {
set_platform = function()
return true
end,
}
vim.cmd = { e = function() end, only = function() end }
vim.api.nvim_get_current_buf = function()
return 1
end
vim.api.nvim_buf_get_lines = function()
return { '' }
end
vim.fn.expand = function()
return '/test/file.cpp'
end
package.loaded['cp.async'] = mock_async
package.loaded['cp.state'] = mock_state
package.loaded['cp.config'] = mock_config
package.loaded['cp.cache'] = mock_cache
package.loaded['cp.problem'] = mock_problem
package.loaded['cp.setup'] = mock_setup
cp = spec_helper.fresh_require('cp')
cp.setup({})
end)
after_each(function()
spec_helper.teardown()
logged_messages = {}
end)
describe('command routing', function()
it('contest_setup command uses async setup', function()
local opts = { fargs = { 'atcoder', 'abc123' } }
assert.has_no_errors(function()
cp.handle_command(opts)
end)
end)
it('full_setup command uses async setup', function()
local opts = { fargs = { 'atcoder', 'abc123', 'a' } }
assert.has_no_errors(function()
cp.handle_command(opts)
end)
end)
it('problem_switch uses async setup', function()
local mock_state = require('cp.state')
mock_state.get_contest_id = function()
return 'abc123'
end
local opts = { fargs = { 'a' } }
assert.has_no_errors(function()
cp.handle_command(opts)
end)
end)
end)
describe('end-to-end workflow', function()
it('handles complete contest setup workflow', function()
local setup_completed = false
local mock_async_setup = {
setup_contest_async = function(contest_id, language)
assert.equals('abc123', contest_id)
assert.is_nil(language)
setup_completed = true
end,
}
package.loaded['cp.async.setup'] = mock_async_setup
local opts = { fargs = { 'atcoder', 'abc123' } }
cp.handle_command(opts)
assert.is_true(setup_completed)
end)
it('handles problem switching within contest', function()
local mock_state = require('cp.state')
mock_state.get_contest_id = function()
return 'abc123'
end
local problem_setup_called = false
local mock_async_setup = {
setup_problem_async = function(contest_id, problem_id, language)
assert.equals('abc123', contest_id)
assert.equals('b', problem_id)
problem_setup_called = true
end,
}
package.loaded['cp.async.setup'] = mock_async_setup
local opts = { fargs = { 'b' } }
cp.handle_command(opts)
assert.is_true(problem_setup_called)
end)
it('handles language flags correctly', function()
local language_passed = nil
local mock_async_setup = {
setup_contest_async = function(contest_id, language)
language_passed = language
end,
}
package.loaded['cp.async.setup'] = mock_async_setup
local opts = { fargs = { 'atcoder', 'abc123', '--lang=python' } }
cp.handle_command(opts)
assert.equals('python', language_passed)
end)
it('handles scraping failures gracefully', function()
spec_helper.mock_async_scraper_failure()
local opts = { fargs = { 'atcoder', 'abc123' } }
assert.has_no_errors(function()
cp.handle_command(opts)
end)
end)
end)
describe('error handling', function()
it('handles invalid platform gracefully', function()
local opts = { fargs = { 'invalid_platform', 'abc123' } }
cp.handle_command(opts)
local error_logged = false
for _, log_entry in ipairs(logged_messages) do
if log_entry.level == vim.log.levels.ERROR then
error_logged = true
break
end
end
assert.is_true(error_logged)
end)
it('handles platform setup failure', function()
local mock_setup = require('cp.setup')
mock_setup.set_platform = function()
return false
end
local opts = { fargs = { 'atcoder', 'abc123' } }
assert.has_no_errors(function()
cp.handle_command(opts)
end)
end)
it('handles empty contest context for problem switch', function()
local mock_state = require('cp.state')
mock_state.get_contest_id = function()
return nil
end
local opts = { fargs = { 'a' } }
cp.handle_command(opts)
local error_logged = false
for _, log_entry in ipairs(logged_messages) do
if log_entry.level == vim.log.levels.ERROR then
error_logged = true
break
end
end
assert.is_true(error_logged)
end)
end)
describe('callback behavior', function()
it('maintains execution context in callbacks', function()
local callback_executed = false
local mock_scraper = {
scrape_contest_metadata_async = function(platform, contest_id, callback)
vim.schedule(function()
callback({ success = true, problems = { { id = 'a' } } })
callback_executed = true
end)
end,
}
package.loaded['cp.async.scraper'] = mock_scraper
local opts = { fargs = { 'atcoder', 'abc123' } }
cp.handle_command(opts)
assert.is_true(callback_executed)
end)
it('handles multiple rapid commands', function()
local command_count = 0
local mock_async_setup = {
setup_contest_async = function()
command_count = command_count + 1
end,
}
package.loaded['cp.async.setup'] = mock_async_setup
cp.handle_command({ fargs = { 'atcoder', 'abc123' } })
cp.handle_command({ fargs = { 'atcoder', 'abc124' } })
cp.handle_command({ fargs = { 'atcoder', 'abc125' } })
assert.equals(3, command_count)
end)
end)
end)

111
spec/async_jobs_spec.lua Normal file
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@ -0,0 +1,111 @@
describe('cp.async.jobs', function()
local jobs
local spec_helper = require('spec.spec_helper')
local mock_jobs = {}
before_each(function()
spec_helper.setup()
mock_jobs = {}
vim.system = function(args, opts, callback)
local job = {
kill = function() end,
args = args,
opts = opts,
callback = callback,
}
mock_jobs[#mock_jobs + 1] = job
return job
end
jobs = spec_helper.fresh_require('cp.async.jobs')
end)
after_each(function()
spec_helper.teardown()
mock_jobs = {}
end)
describe('job management', function()
it('starts job with unique ID', function()
local callback = function() end
local args = { 'test', 'command' }
local opts = { cwd = '/test' }
local job = jobs.start_job('test_job', args, opts, callback)
assert.is_not_nil(job)
assert.equals(1, #mock_jobs)
assert.same(args, mock_jobs[1].args)
assert.same(opts, mock_jobs[1].opts)
assert.equals(callback, mock_jobs[1].callback)
end)
it('kills existing job when starting new job with same ID', function()
local killed = false
vim.system = function(args, opts, callback)
return {
kill = function()
killed = true
end,
args = args,
opts = opts,
callback = callback,
}
end
jobs.start_job('same_id', { 'first' }, {}, function() end)
jobs.start_job('same_id', { 'second' }, {}, function() end)
assert.is_true(killed)
end)
it('kills specific job by ID', function()
local killed = false
vim.system = function()
return {
kill = function()
killed = true
end,
}
end
jobs.start_job('target_job', { 'test' }, {}, function() end)
jobs.kill_job('target_job')
assert.is_true(killed)
end)
it('kills all active jobs', function()
local kill_count = 0
vim.system = function()
return {
kill = function()
kill_count = kill_count + 1
end,
}
end
jobs.start_job('job1', { 'test1' }, {}, function() end)
jobs.start_job('job2', { 'test2' }, {}, function() end)
jobs.kill_all_jobs()
assert.equals(2, kill_count)
end)
it('tracks active job IDs correctly', function()
jobs.start_job('job1', { 'test1' }, {}, function() end)
jobs.start_job('job2', { 'test2' }, {}, function() end)
local active_jobs = jobs.get_active_jobs()
assert.equals(2, #active_jobs)
assert.is_true(vim.tbl_contains(active_jobs, 'job1'))
assert.is_true(vim.tbl_contains(active_jobs, 'job2'))
jobs.kill_job('job1')
active_jobs = jobs.get_active_jobs()
assert.equals(1, #active_jobs)
assert.is_true(vim.tbl_contains(active_jobs, 'job2'))
end)
end)
end)

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describe('cp.async.scraper', function()
local scraper
local spec_helper = require('spec.spec_helper')
local mock_cache, mock_utils
local callback_results = {}
before_each(function()
spec_helper.setup()
callback_results = {}
mock_cache = {
load = function() end,
get_contest_data = function()
return nil
end,
set_contest_data = function() end,
set_test_cases = function() end,
}
mock_utils = {
setup_python_env = function()
return true
end,
get_plugin_path = function()
return '/test/plugin'
end,
}
vim.system = function(cmd, opts, callback)
local result = { code = 0, stdout = '{}', stderr = '' }
if cmd[1] == 'ping' then
result = { code = 0 }
elseif cmd[1] == 'uv' and vim.tbl_contains(cmd, 'metadata') then
result.stdout = '{"success": true, "problems": [{"id": "a", "name": "Test Problem"}]}'
elseif cmd[1] == 'uv' and vim.tbl_contains(cmd, 'tests') then
result.stdout =
'{"success": true, "tests": [{"input": "1 2", "expected": "3"}], "timeout_ms": 2000, "memory_mb": 256.0, "url": "https://example.com"}'
end
callback(result)
end
vim.fn.mkdir = function() end
package.loaded['cp.cache'] = mock_cache
package.loaded['cp.utils'] = mock_utils
scraper = spec_helper.fresh_require('cp.async.scraper')
end)
after_each(function()
spec_helper.teardown()
end)
describe('scrape_contest_metadata_async', function()
it('returns cached data immediately if available', function()
mock_cache.get_contest_data = function()
return { problems = { { id = 'cached', name = 'Cached Problem' } } }
end
scraper.scrape_contest_metadata_async('atcoder', 'abc123', function(result)
callback_results[#callback_results + 1] = result
end)
assert.equals(1, #callback_results)
assert.is_true(callback_results[1].success)
assert.equals('Cached Problem', callback_results[1].problems[1].name)
end)
it('calls callback with success result after scraping', function()
scraper.scrape_contest_metadata_async('atcoder', 'abc123', function(result)
callback_results[#callback_results + 1] = result
end)
assert.equals(1, #callback_results)
assert.is_true(callback_results[1].success)
assert.equals(1, #callback_results[1].problems)
assert.equals('Test Problem', callback_results[1].problems[1].name)
end)
it('calls callback with error on network failure', function()
vim.system = function(cmd, opts, callback)
if cmd[1] == 'ping' then
callback({ code = 1 })
end
end
scraper.scrape_contest_metadata_async('atcoder', 'abc123', function(result)
callback_results[#callback_results + 1] = result
end)
assert.equals(1, #callback_results)
assert.is_false(callback_results[1].success)
assert.equals('No internet connection available', callback_results[1].error)
end)
it('calls callback with error on python env failure', function()
mock_utils.setup_python_env = function()
return false
end
scraper.scrape_contest_metadata_async('atcoder', 'abc123', function(result)
callback_results[#callback_results + 1] = result
end)
assert.equals(1, #callback_results)
assert.is_false(callback_results[1].success)
assert.equals('Python environment setup failed', callback_results[1].error)
end)
it('calls callback with error on subprocess failure', function()
vim.system = function(cmd, opts, callback)
if cmd[1] == 'ping' then
callback({ code = 0 })
else
callback({ code = 1, stderr = 'execution failed' })
end
end
scraper.scrape_contest_metadata_async('atcoder', 'abc123', function(result)
callback_results[#callback_results + 1] = result
end)
assert.equals(1, #callback_results)
assert.is_false(callback_results[1].success)
assert.is_not_nil(callback_results[1].error:match('Failed to run metadata scraper'))
end)
it('calls callback with error on invalid JSON', function()
vim.system = function(cmd, opts, callback)
if cmd[1] == 'ping' then
callback({ code = 0 })
else
callback({ code = 0, stdout = 'invalid json' })
end
end
scraper.scrape_contest_metadata_async('atcoder', 'abc123', function(result)
callback_results[#callback_results + 1] = result
end)
assert.equals(1, #callback_results)
assert.is_false(callback_results[1].success)
assert.is_not_nil(callback_results[1].error:match('Failed to parse metadata scraper output'))
end)
end)
describe('scrape_problem_async', function()
it('calls callback with success after scraping tests', function()
scraper.scrape_problem_async('atcoder', 'abc123', 'a', function(result)
callback_results[#callback_results + 1] = result
end)
assert.equals(1, #callback_results)
assert.is_true(callback_results[1].success)
assert.equals('a', callback_results[1].problem_id)
assert.equals(1, callback_results[1].test_count)
end)
it('handles network failure gracefully', function()
vim.system = function(cmd, opts, callback)
if cmd[1] == 'ping' then
callback({ code = 1 })
end
end
scraper.scrape_problem_async('atcoder', 'abc123', 'a', function(result)
callback_results[#callback_results + 1] = result
end)
assert.equals(1, #callback_results)
assert.is_false(callback_results[1].success)
assert.equals('a', callback_results[1].problem_id)
assert.equals('No internet connection available', callback_results[1].error)
end)
it('validates input parameters', function()
assert.has_error(function()
scraper.scrape_contest_metadata_async(nil, 'abc123', function() end)
end)
assert.has_error(function()
scraper.scrape_problem_async('atcoder', nil, 'a', function() end)
end)
end)
end)
end)

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describe('cp.async.setup', function()
local setup
local spec_helper = require('spec.spec_helper')
local mock_async, mock_scraper, mock_state
local callback_calls = {}
before_each(function()
spec_helper.setup()
callback_calls = {}
mock_async = {
start_contest_operation = function() end,
finish_contest_operation = function() end,
}
mock_scraper = {
scrape_contest_metadata_async = function(platform, contest_id, callback)
callback({
success = true,
problems = {
{ id = 'a', name = 'Problem A' },
{ id = 'b', name = 'Problem B' },
},
})
end,
scrape_problem_async = function(platform, contest_id, problem_id, callback)
callback({
success = true,
problem_id = problem_id,
test_cases = { { input = '1', expected = '1' } },
test_count = 1,
})
end,
}
mock_state = {
get_platform = function()
return 'atcoder'
end,
get_contest_id = function()
return 'abc123'
end,
set_contest_id = function() end,
set_problem_id = function() end,
set_test_cases = function() end,
set_run_panel_active = function() end,
}
local mock_config = {
get_config = function()
return {
scrapers = { 'atcoder', 'codeforces' },
hooks = nil,
}
end,
}
local mock_cache = {
load = function() end,
get_test_cases = function()
return nil
end,
set_file_state = function() end,
}
local mock_problem = {
create_context = function()
return {
source_file = '/test/source.cpp',
problem_name = 'abc123a',
}
end,
}
vim.cmd = { e = function() end, only = function() end }
vim.api.nvim_get_current_buf = function()
return 1
end
vim.api.nvim_buf_get_lines = function()
return { '' }
end
vim.fn.expand = function()
return '/test/file.cpp'
end
package.loaded['cp.async'] = mock_async
package.loaded['cp.async.scraper'] = mock_scraper
package.loaded['cp.state'] = mock_state
package.loaded['cp.config'] = mock_config
package.loaded['cp.cache'] = mock_cache
package.loaded['cp.problem'] = mock_problem
setup = spec_helper.fresh_require('cp.async.setup')
end)
after_each(function()
spec_helper.teardown()
end)
describe('setup_contest_async', function()
it('guards against multiple simultaneous operations', function()
local started = false
mock_async.start_contest_operation = function()
started = true
end
setup.setup_contest_async('abc123', 'cpp')
assert.is_true(started)
end)
it('handles metadata scraping success', function()
local finished = false
mock_async.finish_contest_operation = function()
finished = true
end
setup.setup_contest_async('abc123', 'cpp')
assert.is_true(finished)
end)
it('handles metadata scraping failure gracefully', function()
mock_scraper.scrape_contest_metadata_async = function(platform, contest_id, callback)
callback({
success = false,
error = 'network error',
})
end
local finished = false
mock_async.finish_contest_operation = function()
finished = true
end
setup.setup_contest_async('abc123', 'cpp')
assert.is_true(finished)
end)
it('handles disabled scraping platform', function()
mock_state.get_platform = function()
return 'disabled_platform'
end
assert.has_no_errors(function()
setup.setup_contest_async('abc123', 'cpp')
end)
end)
end)
describe('setup_problem_async', function()
it('opens buffer immediately', function()
local buffer_opened = false
vim.cmd.e = function()
buffer_opened = true
end
setup.setup_problem_async('abc123', 'a', 'cpp')
assert.is_true(buffer_opened)
end)
it('uses cached test cases if available', function()
local cached_cases = { { input = 'cached', expected = 'result' } }
local mock_cache = require('cp.cache')
mock_cache.get_test_cases = function()
return cached_cases
end
local set_test_cases_called = false
mock_state.set_test_cases = function(cases)
assert.same(cached_cases, cases)
set_test_cases_called = true
end
setup.setup_problem_async('abc123', 'a', 'cpp')
assert.is_true(set_test_cases_called)
end)
it('starts background test scraping if not cached', function()
local scraping_started = false
mock_scraper.scrape_problem_async = function(platform, contest_id, problem_id, callback)
scraping_started = true
callback({ success = true, problem_id = problem_id, test_cases = {} })
end
setup.setup_problem_async('abc123', 'a', 'cpp')
assert.is_true(scraping_started)
end)
it('finishes contest operation on completion', function()
local finished = false
mock_async.finish_contest_operation = function()
finished = true
end
setup.setup_problem_async('abc123', 'a', 'cpp')
assert.is_true(finished)
end)
end)
describe('handle_full_setup_async', function()
it('validates problem exists in contest', function()
mock_scraper.scrape_contest_metadata_async = function(platform, contest_id, callback)
callback({
success = true,
problems = { { id = 'a' }, { id = 'b' } },
})
end
local cmd = { platform = 'atcoder', contest = 'abc123', problem = 'c' }
local finished = false
mock_async.finish_contest_operation = function()
finished = true
end
setup.handle_full_setup_async(cmd)
assert.is_true(finished)
end)
it('proceeds with valid problem', function()
mock_scraper.scrape_contest_metadata_async = function(platform, contest_id, callback)
callback({
success = true,
problems = { { id = 'a' }, { id = 'b' } },
})
end
local cmd = { platform = 'atcoder', contest = 'abc123', problem = 'a' }
assert.has_no_errors(function()
setup.handle_full_setup_async(cmd)
end)
end)
end)
describe('background problem scraping', function()
it('scrapes uncached problems in background', function()
local problems = { { id = 'a' }, { id = 'b' }, { id = 'c' } }
local scraping_calls = {}
mock_scraper.scrape_problem_async = function(platform, contest_id, problem_id, callback)
scraping_calls[#scraping_calls + 1] = problem_id
callback({ success = true, problem_id = problem_id })
end
local mock_cache = require('cp.cache')
mock_cache.get_test_cases = function()
return nil
end
setup.start_background_problem_scraping('abc123', problems, { scrapers = { 'atcoder' } })
assert.equals(3, #scraping_calls)
assert.is_true(vim.tbl_contains(scraping_calls, 'a'))
assert.is_true(vim.tbl_contains(scraping_calls, 'b'))
assert.is_true(vim.tbl_contains(scraping_calls, 'c'))
end)
it('skips already cached problems', function()
local problems = { { id = 'a' }, { id = 'b' } }
local scraping_calls = {}
mock_scraper.scrape_problem_async = function(platform, contest_id, problem_id, callback)
scraping_calls[#scraping_calls + 1] = problem_id
callback({ success = true, problem_id = problem_id })
end
local mock_cache = require('cp.cache')
mock_cache.get_test_cases = function(platform, contest_id, problem_id)
return problem_id == 'a' and { { input = '1', expected = '1' } } or nil
end
setup.start_background_problem_scraping('abc123', problems, { scrapers = { 'atcoder' } })
assert.equals(1, #scraping_calls)
assert.equals('b', scraping_calls[1])
end)
end)
end)

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describe('cp.scrape', function()
local scrape
local mock_cache
local mock_utils
local mock_system_calls
local temp_files
local spec_helper = require('spec.spec_helper')
before_each(function()
spec_helper.setup()
temp_files = {}
mock_system_calls = {}
mock_cache = {
load = function() end,
get_contest_data = function()
return nil
end,
set_contest_data = function() end,
set_test_cases = function() end,
}
mock_utils = {
setup_python_env = function()
return true
end,
get_plugin_path = function()
return '/test/plugin/path'
end,
}
vim.system = function(cmd, opts)
table.insert(mock_system_calls, { cmd = cmd, opts = opts })
local result = { code = 0, stdout = '{}', stderr = '' }
if cmd[1] == 'ping' then
result = { code = 0 }
elseif cmd[1] == 'uv' and cmd[2] == 'sync' then
result = { code = 0, stdout = '', stderr = '' }
elseif cmd[1] == 'uv' and cmd[2] == 'run' then
if vim.tbl_contains(cmd, 'metadata') then
result.stdout = '{"success": true, "problems": [{"id": "a", "name": "Test Problem"}]}'
elseif vim.tbl_contains(cmd, 'tests') then
result.stdout =
'{"success": true, "tests": [{"input": "1 2", "expected": "3"}], "url": "https://example.com", "timeout_ms": 2000, "memory_mb": 256.0}'
end
end
return {
wait = function()
return result
end,
}
end
package.loaded['cp.cache'] = mock_cache
package.loaded['cp.utils'] = mock_utils
scrape = spec_helper.fresh_require('cp.scrape')
local original_fn = vim.fn
vim.fn = vim.tbl_extend('force', vim.fn, {
executable = function(cmd)
if cmd == 'uv' then
return 1
end
return original_fn.executable(cmd)
end,
isdirectory = function(path)
if path:match('%.venv$') then
return 1
end
return original_fn.isdirectory(path)
end,
filereadable = function(path)
if temp_files[path] then
return 1
end
return 0
end,
readfile = function(path)
return temp_files[path] or {}
end,
writefile = function(lines, path)
temp_files[path] = lines
end,
mkdir = function() end,
fnamemodify = function(path, modifier)
if modifier == ':r' then
return path:gsub('%..*$', '')
end
return original_fn.fnamemodify(path, modifier)
end,
})
end)
after_each(function()
package.loaded['cp.cache'] = nil
vim.system = vim.system_original or vim.system
spec_helper.teardown()
temp_files = {}
end)
describe('cache integration', function()
it('returns cached data when available', function()
mock_cache.get_contest_data = function(platform, contest_id)
if platform == 'atcoder' and contest_id == 'abc123' then
return { problems = { { id = 'a', name = 'Cached Problem' } } }
end
return nil
end
local result = scrape.scrape_contest_metadata('atcoder', 'abc123')
assert.is_true(result.success)
assert.equals(1, #result.problems)
assert.equals('Cached Problem', result.problems[1].name)
assert.equals(0, #mock_system_calls)
end)
it('stores scraped data in cache after successful scrape', function()
local stored_data = nil
mock_cache.set_contest_data = function(platform, contest_id, problems)
stored_data = { platform = platform, contest_id = contest_id, problems = problems }
end
scrape = spec_helper.fresh_require('cp.scrape')
local result = scrape.scrape_contest_metadata('atcoder', 'abc123')
assert.is_true(result.success)
assert.is_not_nil(stored_data)
assert.equals('atcoder', stored_data.platform)
assert.equals('abc123', stored_data.contest_id)
assert.equals(1, #stored_data.problems)
end)
end)
describe('system dependency checks', function()
it('handles missing uv executable', function()
local cache = require('cp.cache')
local utils = require('cp.utils')
cache.load = function() end
cache.get_contest_data = function()
return nil
end
vim.fn.executable = function(cmd)
return cmd == 'uv' and 0 or 1
end
utils.setup_python_env = function()
return vim.fn.executable('uv') == 1
end
vim.system = function(cmd)
if cmd[1] == 'ping' then
return {
wait = function()
return { code = 0 }
end,
}
end
return {
wait = function()
return { code = 0 }
end,
}
end
local result = scrape.scrape_contest_metadata('atcoder', 'abc123')
assert.is_false(result.success)
assert.is_not_nil(result.error)
end)
it('handles python environment setup failure', function()
local cache = require('cp.cache')
cache.load = function() end
cache.get_contest_data = function()
return nil
end
mock_utils.setup_python_env = function()
return false
end
vim.system = function(cmd)
if cmd[1] == 'ping' then
return {
wait = function()
return { code = 0 }
end,
}
end
return {
wait = function()
return { code = 0 }
end,
}
end
local result = scrape.scrape_contest_metadata('atcoder', 'abc123')
assert.is_false(result.success)
assert.equals('Python environment setup failed', result.error)
end)
it('handles network connectivity issues', function()
vim.system = function(cmd)
if cmd[1] == 'ping' then
return {
wait = function()
return { code = 1 }
end,
}
end
return {
wait = function()
return { code = 0 }
end,
}
end
local result = scrape.scrape_contest_metadata('atcoder', 'abc123')
assert.is_false(result.success)
assert.equals('No internet connection available', result.error)
end)
end)
describe('subprocess execution', function()
it('constructs correct command for atcoder metadata', function()
scrape.scrape_contest_metadata('atcoder', 'abc123')
local metadata_call = nil
for _, call in ipairs(mock_system_calls) do
if vim.tbl_contains(call.cmd, 'metadata') then
metadata_call = call
break
end
end
assert.is_not_nil(metadata_call)
assert.equals('uv', metadata_call.cmd[1])
assert.equals('run', metadata_call.cmd[2])
assert.is_true(vim.tbl_contains(metadata_call.cmd, 'metadata'))
assert.is_true(vim.tbl_contains(metadata_call.cmd, 'abc123'))
end)
it('constructs correct command for cses metadata', function()
scrape.scrape_contest_metadata('cses', 'sorting_and_searching')
local metadata_call = nil
for _, call in ipairs(mock_system_calls) do
if vim.tbl_contains(call.cmd, 'metadata') then
metadata_call = call
break
end
end
assert.is_not_nil(metadata_call)
assert.equals('uv', metadata_call.cmd[1])
assert.is_true(vim.tbl_contains(metadata_call.cmd, 'metadata'))
assert.is_true(vim.tbl_contains(metadata_call.cmd, 'sorting_and_searching'))
end)
it('handles subprocess execution failure', function()
vim.system = function(cmd)
if cmd[1] == 'ping' then
return {
wait = function()
return { code = 0 }
end,
}
elseif cmd[1] == 'uv' and vim.tbl_contains(cmd, 'metadata') then
return {
wait = function()
return { code = 1, stderr = 'execution failed' }
end,
}
end
return {
wait = function()
return { code = 0 }
end,
}
end
local result = scrape.scrape_contest_metadata('atcoder', 'abc123')
assert.is_false(result.success)
assert.is_not_nil(result.error:match('Failed to run metadata scraper'))
assert.is_not_nil(result.error:match('execution failed'))
end)
end)
describe('json parsing', function()
it('handles invalid json output', function()
vim.system = function(cmd)
if cmd[1] == 'ping' then
return {
wait = function()
return { code = 0 }
end,
}
elseif cmd[1] == 'uv' and vim.tbl_contains(cmd, 'metadata') then
return {
wait = function()
return { code = 0, stdout = 'invalid json' }
end,
}
end
return {
wait = function()
return { code = 0 }
end,
}
end
local result = scrape.scrape_contest_metadata('atcoder', 'abc123')
assert.is_false(result.success)
assert.is_not_nil(result.error:match('Failed to parse metadata scraper output'))
end)
it('handles scraper-reported failures', function()
vim.system = function(cmd)
if cmd[1] == 'ping' then
return {
wait = function()
return { code = 0 }
end,
}
elseif cmd[1] == 'uv' and vim.tbl_contains(cmd, 'metadata') then
return {
wait = function()
return {
code = 0,
stdout = '{"success": false, "error": "contest not found"}',
}
end,
}
end
return {
wait = function()
return { code = 0 }
end,
}
end
local result = scrape.scrape_contest_metadata('atcoder', 'abc123')
assert.is_false(result.success)
assert.equals('contest not found', result.error)
end)
end)
describe('problem scraping', function()
local test_context
before_each(function()
test_context = {
contest = 'atcoder',
contest_id = 'abc123',
problem_id = 'a',
problem_name = 'abc123a',
input_file = 'io/abc123a.cpin',
expected_file = 'io/abc123a.expected',
}
end)
it('uses existing files when available', function()
temp_files['io/abc123a.cpin'] = { '1 2' }
temp_files['io/abc123a.expected'] = { '3' }
temp_files['io/abc123a.1.cpin'] = { '4 5' }
temp_files['io/abc123a.1.cpout'] = { '9' }
local result = scrape.scrape_problem(test_context)
assert.is_true(result.success)
assert.equals('abc123a', result.problem_id)
assert.equals(1, result.test_count)
assert.equals(0, #mock_system_calls)
end)
it('scrapes and writes test case files', function()
local result = scrape.scrape_problem(test_context)
assert.is_true(result.success)
assert.equals('abc123a', result.problem_id)
assert.equals(1, result.test_count)
assert.is_not_nil(temp_files['io/abc123a.1.cpin'])
assert.is_not_nil(temp_files['io/abc123a.1.cpout'])
assert.equals('1 2', table.concat(temp_files['io/abc123a.1.cpin'], '\n'))
assert.equals('3', table.concat(temp_files['io/abc123a.1.cpout'], '\n'))
end)
it('constructs correct command for atcoder problem tests', function()
scrape.scrape_problem(test_context)
local tests_call = nil
for _, call in ipairs(mock_system_calls) do
if vim.tbl_contains(call.cmd, 'tests') then
tests_call = call
break
end
end
assert.is_not_nil(tests_call)
assert.is_true(vim.tbl_contains(tests_call.cmd, 'tests'))
assert.is_true(vim.tbl_contains(tests_call.cmd, 'abc123'))
assert.is_true(vim.tbl_contains(tests_call.cmd, 'a'))
end)
it('constructs correct command for cses problem tests', function()
test_context.contest = 'cses'
test_context.contest_id = 'sorting_and_searching'
test_context.problem_id = '1001'
scrape.scrape_problem(test_context)
local tests_call = nil
for _, call in ipairs(mock_system_calls) do
if vim.tbl_contains(call.cmd, 'tests') then
tests_call = call
break
end
end
assert.is_not_nil(tests_call)
assert.is_true(vim.tbl_contains(tests_call.cmd, 'tests'))
assert.is_true(vim.tbl_contains(tests_call.cmd, '1001'))
assert.is_true(vim.tbl_contains(tests_call.cmd, 'sorting_and_searching'))
end)
end)
describe('error scenarios', function()
it('validates input parameters', function()
assert.has_error(function()
scrape.scrape_contest_metadata(nil, 'abc123')
end)
assert.has_error(function()
scrape.scrape_contest_metadata('atcoder', nil)
end)
end)
it('handles file system errors gracefully', function()
vim.fn.mkdir = function()
error('permission denied')
end
local ctx = {
contest = 'atcoder',
contest_id = 'abc123',
problem_id = 'a',
problem_name = 'abc123a',
input_file = 'io/abc123a.cpin',
expected_file = 'io/abc123a.expected',
}
assert.has_error(function()
scrape.scrape_problem(ctx)
end)
end)
end)
end)

View file

@ -103,6 +103,61 @@ function M.mock_scraper_success()
}
end
function M.mock_async_scraper_success()
package.loaded['cp.async.scraper'] = {
scrape_contest_metadata_async = function(platform, contest_id, callback)
vim.schedule(function()
callback({
success = true,
problems = {
{ id = 'a' },
{ id = 'b' },
{ id = 'c' },
},
})
end)
end,
scrape_problem_async = function(platform, contest_id, problem_id, callback)
vim.schedule(function()
callback({
success = true,
problem_id = problem_id,
test_cases = {
{ input = '1 2', expected = '3' },
{ input = '3 4', expected = '7' },
},
test_count = 2,
timeout_ms = 2000,
memory_mb = 256.0,
url = 'https://example.com',
})
end)
end,
}
end
function M.mock_async_scraper_failure()
package.loaded['cp.async.scraper'] = {
scrape_contest_metadata_async = function(platform, contest_id, callback)
vim.schedule(function()
callback({
success = false,
error = 'mock network error',
})
end)
end,
scrape_problem_async = function(platform, contest_id, problem_id, callback)
vim.schedule(function()
callback({
success = false,
problem_id = problem_id,
error = 'mock scraping failed',
})
end)
end,
}
end
function M.has_error_logged()
for _, log_entry in ipairs(M.logged_messages) do
if log_entry.level == vim.log.levels.ERROR then
@ -135,6 +190,10 @@ end
function M.teardown()
package.loaded['cp.log'] = nil
package.loaded['cp.scrape'] = nil
package.loaded['cp.async.scraper'] = nil
package.loaded['cp.async.jobs'] = nil
package.loaded['cp.async.setup'] = nil
package.loaded['cp.async'] = nil
M.logged_messages = {}
end