Модул:UnitTests
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-- UnitTester provides unit testing for other Lua scripts. For details see [[Wikipedia:Lua#Unit_testing]].
-- For user documentation see talk page.
local UnitTester = {}
local frame, tick, cross
local header_text = 'Text'
local header_expected = 'Expected'
local header_actual = 'Actual'
local header_differs_at = 'Differs at'
local result_table_header = [=[
{|class="wikitable"
|+ style="text-align:left; margin-bottom:1em;"| %s :
!scope=col|
!scope=col| %s
!scope=col| %s
!scope=col| %s]=]
result_table_header = result_table_header:format( '%s', header_text, header_expected, header_actual )
local result_table_header_differs_at = '!scope=col| ' .. header_differs_at
local result_table = ''
local num_failures = 0
function first_difference(s1, s2)
if s1 == s2 then return '' end
local max = math.min(#s1, #s2)
for i = 1, max do
if s1:sub(i,i) ~= s2:sub(i,i) then return i end
end
return max + 1
end
function UnitTester:preprocess_equals(text, expected, options)
local actual = frame:preprocess(text)
if actual == expected then
result_table = result_table .. '| ' .. tick
else
result_table = result_table .. '| ' .. cross
num_failures = num_failures + 1
end
local maybe_nowiki = (options and options.nowiki) and mw.text.nowiki or function(...) return ... end
local differs_at = self.differs_at and (' \n| ' .. first_difference(expected, actual)) or ''
result_table = result_table
.. '\n| ' .. mw.text.nowiki(text)
.. '\n| ' .. maybe_nowiki(expected)
.. '\n| ' .. maybe_nowiki(actual) .. differs_at
.. '\n|-\n'
end
function UnitTester:preprocess_equals_many(prefix, suffix, cases, options)
for _, case in ipairs(cases) do
self:preprocess_equals(prefix .. case[1] .. suffix, case[2], options)
end
end
function UnitTester:preprocess_equals_preprocess(text1, text2, options)
local actual = frame:preprocess(text1)
local expected = frame:preprocess(text2)
if actual == expected then
result_table = result_table .. '| ' .. tick
else
result_table = result_table .. '| ' .. cross
num_failures = num_failures + 1
end
local maybe_nowiki = (options and options.nowiki) and mw.text.nowiki or function(...) return ... end
local differs_at = self.differs_at and ('\n| ' .. first_difference(expected, actual)) or ''
result_table = result_table
.. '\n| ' .. mw.text.nowiki(text1)
.. '\n| ' .. maybe_nowiki(expected)
.. '\n| ' .. maybe_nowiki(actual) .. differs_at
.. '\n|-\n'
end
function UnitTester:preprocess_equals_preprocess_many(prefix1, suffix1, prefix2, suffix2, cases, options)
for _, case in ipairs(cases) do
self:preprocess_equals_preprocess(prefix1 .. case[1] .. suffix1, prefix2 .. (case[2] and case[2] or case[1]) .. suffix2, options)
end
end
function UnitTester:equals(name, actual, expected, options)
if actual == expected then
result_table = result_table .. '| ' .. tick
else
result_table = result_table .. '| ' .. cross
num_failures = num_failures + 1
end
local maybe_nowiki = (options and options.nowiki) and mw.text.nowiki or function(...) return ... end
local differs_at = self.differs_at and (' \n| ' .. first_difference(expected, actual)) or ''
result_table = result_table
.. '\n| ' .. name
.. '\n| ' .. maybe_nowiki(tostring(expected))
.. '\n| ' .. maybe_nowiki(tostring(actual)) .. differs_at
.. '\n|-\n'
end
local function deep_compare(t1, t2, ignore_mt)
local ty1 = type(t1)
local ty2 = type(t2)
if ty1 ~= ty2 then return false end
if ty1 ~= 'table' and ty2 ~= 'table' then return t1 == t2 end
local mt = getmetatable(t1)
if not ignore_mt and mt and mt.__eq then return t1 == t2 end
for k1, v1 in pairs(t1) do
local v2 = t2[k1]
if v2 == nil or not deep_compare(v1, v2) then return false end
end
for k2, v2 in pairs(t2) do
local v1 = t1[k2]
if v1 == nil or not deep_compare(v1, v2) then return false end
end
return true
end
function val_to_str(v)
if type(v) == 'string' then
v = mw.ustring.gsub(v, '\n', '\\n')
if mw.ustring.match(mw.ustring.gsub(v, '[^\'"]', ''), '^"+$') then
return "'" .. v .. "'"
end
return '"' .. mw.ustring.gsub(v, '"', '\\"' ) .. '"'
else
return type(v) == 'table' and table_to_str(v) or tostring(v)
end
end
function table_key_to_str(k)
if type(k) == 'string' and mw.ustring.match(k, '^[_%a][_%a%d]*$') then
return k
else
return '[' .. val_to_str(k) .. ']'
end
end
function table_to_str(tbl)
local result, done = {}, {}
for k, v in ipairs(tbl) do
table.insert(result, val_to_str(v))
done[k] = true
end
for k, v in pairs(tbl) do
if not done[k] then
table.insert(result, table_key_to_str(k) .. '=' .. val_to_str(v))
end
end
return '{' .. table.concat(result, ',') .. '}'
end
function UnitTester:equals_deep(name, actual, expected, options)
if deep_compare(actual, expected) then
result_table = result_table .. '| ' .. tick
else
result_table = result_table .. '| ' .. cross
num_failures = num_failures + 1
end
local maybe_nowiki = (options and options.nowiki) and mw.text.nowiki or function(...) return ... end
local actual_str = val_to_str(actual)
local expected_str = val_to_str(expected)
local differs_at = self.differs_at and (' \n| ' .. first_difference(expected_str, actual_str)) or ''
result_table = result_table
.. ' \n| ' .. name
.. ' \n| ' .. maybe_nowiki(expected_str)
.. ' \n| ' .. maybe_nowiki(actual_str) .. differs_at
.. '\n|-\n'
end
function UnitTester:run(frame_arg)
frame = frame_arg
self.frame = frame
self.differs_at = frame.args['differs_at']
tick = frame:preprocess('{{fait}}')
cross = frame:preprocess('{{Croix3}}')
local table_header = result_table_header
if self.differs_at then
table_header = table_header .. result_table_header_differs_at
end
-- Sort results into alphabetical order.
local self_sorted = {}
for key,value in pairs(self) do
if key:find('^test') then
table.insert(self_sorted, key)
end
end
table.sort(self_sorted)
-- Add results to the results table.
for i,value in ipairs(self_sorted) do
result_table = result_table
.. '\n' .. table_header:format( value )
.. '\n|-\n'
self[value](self)
result_table = result_table .. '|}\n\n'
end
local printResult = [=[<span style="color:#008000">'''All tests passed.'''</span>]=]
if num_failures > 0 then
printResult = [=[<span style="color:#800000">''']=] .. num_failures .. [=[ tests failed.'''</span>]=]
end
return printResult .. '\n\n' .. frame:preprocess(result_table)
end
function UnitTester:new()
local o = {}
setmetatable(o, self)
self.__index = self
return o
end
local p = UnitTester:new()
function p.run_tests(frame) return p:run(frame) end
return p