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local assert = require "luassert"
local builtin = require "telescope.builtin"
local log = require "telescope.log"
local Job = require "plenary.job"
local Path = require "plenary.path"
local tester = {}
tester.debug = false
local replace_terms = function(input)
return vim.api.nvim_replace_termcodes(input, true, false, true)
end
local nvim_feed = function(text, feed_opts)
feed_opts = feed_opts or "m"
vim.api.nvim_feedkeys(text, feed_opts, true)
end
local writer = function(val)
if type(val) == "table" then
val = vim.fn.json_encode(val) .. "\n"
end
if tester.debug then
print(val)
else
io.stderr:write(val)
end
end
local execute_test_case = function(location, key, spec)
local ok, actual = pcall(spec[2])
if not ok then
writer {
location = "Error: " .. location,
case = key,
expected = "To succeed and return: " .. tostring(spec[1]),
actual = actual,
_type = spec._type,
}
else
writer {
location = location,
case = key,
expected = spec[1],
actual = actual,
_type = spec._type,
}
end
end
local end_test_cases = function()
vim.cmd [[qa!]]
end
local invalid_test_case = function(k)
writer { case = k, expected = "<a valid key>", actual = k }
end_test_cases()
end
tester.picker_feed = function(input, test_cases)
input = replace_terms(input)
return coroutine.wrap(function()
for i = 1, #input do
local char = input:sub(i, i)
nvim_feed(char, "")
-- TODO: I'm not 100% sure this is a hack or not...
-- it's possible these characters could still have an on_complete... but i'm not sure.
if string.match(char, "%g") then
coroutine.yield()
end
if tester.debug then
vim.wait(200)
end
end
vim.wait(10)
if tester.debug then
coroutine.yield()
end
vim.defer_fn(function()
if test_cases.post_typed then
for k, v in ipairs(test_cases.post_typed) do
execute_test_case("post_typed", k, v)
end
end
nvim_feed(replace_terms "<CR>", "")
end, 20)
vim.defer_fn(function()
if test_cases.post_close then
for k, v in ipairs(test_cases.post_close) do
execute_test_case("post_close", k, v)
end
end
if tester.debug then
return
end
vim.defer_fn(end_test_cases, 20)
end, 40)
coroutine.yield()
end)
end
local _VALID_KEYS = {
post_typed = true,
post_close = true,
}
tester.builtin_picker = function(builtin_key, input, test_cases, opts)
opts = opts or {}
tester.debug = opts.debug or false
for k, _ in pairs(test_cases) do
if not _VALID_KEYS[k] then
return invalid_test_case(k)
end
end
opts.on_complete = {
tester.picker_feed(input, test_cases),
}
builtin[builtin_key](opts)
end
local get_results_from_file = function(file)
local j = Job:new {
command = "nvim",
args = {
"--noplugin",
"-u",
"scripts/minimal_init.vim",
"-c",
string.format([[lua require("telescope.pickers._test")._execute("%s")]], file),
},
}
j:sync(10000)
local results = j:stderr_result()
local result_table = {}
for _, v in ipairs(results) do
table.insert(result_table, vim.fn.json_decode(v))
end
return result_table
end
local asserters = {
_default = assert.are.same,
are = assert.are.same,
are_not = assert.are_not.same,
}
local check_results = function(results)
-- TODO: We should get all the test cases here that fail, not just the first one.
for _, v in ipairs(results) do
local assertion = asserters[v._type or "default"]
assertion(v.expected, v.actual, string.format("Test Case: %s // %s", v.location, v.case))
end
end
tester.run_string = function(contents)
local tempname = vim.fn.tempname()
contents = [[
local tester = require('telescope.pickers._test')
local helper = require('telescope.pickers._test_helpers')
helper.make_globals()
]] .. contents
vim.fn.writefile(vim.split(contents, "\n"), tempname)
local result_table = get_results_from_file(tempname)
vim.fn.delete(tempname)
check_results(result_table)
end
tester.run_file = function(filename)
local file = "./lua/tests/pickers/" .. filename .. ".lua"
if not Path:new(file):exists() then
assert.are.same("<An existing file>", file)
end
local result_table = get_results_from_file(file)
check_results(result_table)
end
tester.not_ = function(val)
val._type = "are_not"
return val
end
tester._execute = function(filename)
-- Important so that the outputs don't get mixed
log.use_console = false
vim.cmd(string.format("luafile %s", filename))
local f = loadfile(filename)
if not f then
writer {
location = "Error: " .. filename,
case = filename,
expected = "To succeed",
actual = nil,
}
end
local ok, msg = pcall(f)
if not ok then
writer {
location = "Error: " .. msg,
case = msg,
expected = msg,
}
end
end_test_cases()
end
return tester
|
