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Module:UnitTests
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-- [[en:Module:UnitTests]] -- UnitTester provides unit testing for other Lua scripts. For details see [[Qiuwen:Lua#Unit_testing]]. -- For user documentation see talk page. local UnitTester = {} local frame, tick, cross local result_table_header = "{|class=\"wikitable\"\n|+ %s\n! !! 文本 !! 预期 !! 实际结果" local result_table = { n = 0 } local result_table_mt = { insert = function (self, ...) local n = self.n for i = 1, select('#', ...) do local val = select(i, ...) if val ~= nil then n = n + 1 self[n] = val end end self.n = n end, insert_format = function (self, ...) self:insert(string.format(...)) end, concat = table.concat } result_table_mt.__index = result_table_mt setmetatable(result_table, result_table_mt) 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 local function return_varargs(...) return ... end function UnitTester:preprocess_equals(text, expected, options) local actual = frame:preprocess(text) if actual == expected then result_table:insert('| ', tick) else result_table:insert('| ', cross) num_failures = num_failures + 1 end local maybe_nowiki = (options and options.nowiki) and mw.text.nowiki or return_varargs local differs_at = self.differs_at and (' \n| ' .. first_difference(expected, actual)) or '' result_table:insert(' \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 options and true == options.templatestyles then -- when module rendering has templatestyles strip markers, use ID from expected to prevent false test fail local pattern = '(\127[^\127]*UNIQ%-%-templatestyles%-)(%x+)(%-QINU[^\127]*\127)'; -- templatestyle stripmarker pattern local _, stripmarker_id = expected:match (pattern); -- get templatestyles strip marker id from expected (the reference); ignore first capture in pattern if stripmarker_id then actual = actual:gsub (pattern, '%1'..stripmarker_id..'%3'); -- replace actual id with expected id; ignore second capture in pattern end end -- option to ignore any strip marker when comparing actual to expected if options and true == options.stripmarker then local pattern = '(\127[^\127]*UNIQ%-%-%l+%-)(%x+)(%-QINU[^\127]*\127)'; local _, stripmarker_id = expected:match (pattern); if stripmarker_id then actual = actual:gsub (pattern, '%1'..stripmarker_id..'%3'); expected = expected:gsub (pattern, '%1'..stripmarker_id..'%3'); end end local highlight; if actual == expected then result_table:insert('| ', tick) else result_table:insert('| ', cross) num_failures = num_failures + 1 highlight=true end local maybe_nowiki = (options and options.nowiki) and mw.text.nowiki or return_varargs local differs_at = self.differs_at and (' \n| ' .. first_difference(expected, actual)) or '' result_table:insert(' \n| ', mw.text.nowiki(text1), ' \n| ', maybe_nowiki(expected), highlight and ' \n|style="background: #fc0"| ' or ' \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:insert('| ', tick) else result_table:insert('| ', cross) num_failures = num_failures + 1 end local maybe_nowiki = (options and options.nowiki) and mw.text.nowiki or return_varargs local differs_at = self.differs_at and (' \n| ' .. first_difference(expected, actual)) or '' local display = options and options.display or function(x) return x end result_table:insert(' \n| ', name, ' \n| ', maybe_nowiki(tostring(display(expected))), ' \n| ', maybe_nowiki(tostring(display(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:insert('| ', tick) else result_table:insert('| ', cross) num_failures = num_failures + 1 end local maybe_nowiki = (options and options.nowiki) and mw.text.nowiki or return_varargs 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:insert(' \n| ', name, ' \n| ', maybe_nowiki(expected_str), ' \n| ', maybe_nowiki(actual_str), differs_at, "\n|-\n") end function UnitTester:iterate(examples, func) require 'libraryUtil'.checkType('iterate', 1, examples, 'table') if type(func) == 'string' then func = self[func] elseif type(func) ~= 'function' then error(("问题参数 #2 to 'iterate'(预期为函数或字符串,实际取得%s)") :format(type(func)), 2) end for i, example in ipairs(examples) do if type(example) == 'table' then func(self, unpack(example)) elseif type(example) == 'string' then self:heading(example) else error(('问题例子#%d(预期为表,实际取得%s)') :format(i, type(example)), 2) end end end function UnitTester:heading(text) result_table:insert_format(' ! colspan="%u" style="text-align: left" | %s \n |- \n ', self.columns, text) end function UnitTester:run(frame_arg) frame = frame_arg self.frame = frame self.differs_at = frame.args['differs_at'] tick = frame:preprocess('{{Tick}}') cross = frame:preprocess('{{Cross}}') local table_header = result_table_header self.columns = 4 if self.differs_at then table_header = table_header .. ' !! 差异于' self.columns = self.columns + 1 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:insert_format(table_header .. "\n|-\n", value) self[value](self) result_table:insert("|}\n") end return (num_failures == 0 and "<b style=\"color:#008000\">All tests passed.</b>" or "<b style=\"color:#800000\">" .. num_failures .. " tests failed.</b>") .. "\n\n" .. frame:preprocess(result_table:concat()) 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
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