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LURE: tests

Simple unit tests

tim@menzies.us
August'17

Standard usage:

require "show" local O=require "tests"

local function _num1()

 local NUM=require "num"
 local  i = NUM.create()
 for _,x in pairs{9,2,5,4,12,7,8,11,9,3,7,4,12,5,4,10,9,6,9,4} do
   NUM.update(i,x) 
 end
 assert(i.mu == 7)

O.k{_num1}

Track and report the pass, fail counts.

 
local _ = require "config"
local pass,fail = 0,0

local function report() 
  print(string.format(
        ":pass %s :fail %s :percentPass %.0f%%",
         pass, fail, 100*pass/(0.001+pass+fail))) end

Report stray globals, skipping the built-ins.

 
local builtin = { 
  math=true, package=true, 
  table=true, coroutine=true, os=true, 
  io=true, bit32=true, string=true, 
  arg=true, debug=true, _VERSION=true, _G=true,
  load=true, xpcall=true, type=true, print=true,
  pcall=true, require=true, tonumber=true,
  getmetatable=true, setmetatable=true, ipairs=true,
  tostring=true, loadfile=true, collectgarbage=true,
  next=true, rawequal=true, rawget=true, rawlen=true,
  pairs=true, error=true, dofile=true, unpack=true,
  select=true, loadstring=true, module=true, assert=true,
  rawset=true, gcinfo=true, setfenv=true, jit=true,
  bit=true, newproxy=true, getfenv=true}

local function globals()
  for k,v in pairs( _G ) do

if type(v) ~= 'function' then 

       if not builtin[k] then 
         print("-- Global: " .. k) end end end --end

Call all the functions in the list t. Update the pass and fail counts.

 
local function tests(t)
  for s,x in pairs(t) do  
    print("# test:", s) 
    pass = pass + 1
    local t1= os.clock()
    defaults()
    local passed,err = pcall(x) 
    local t2= os.clock()
    print((t2-t1) .. " secs")
    if not passed then   
       fail = fail + 1
       print("Failure: ".. err) end end end

Help for comparing real numbers. Converts them to a string with a limited number of significant figures.
e.g. assert(O.nstr(sd,4) == O.nstr(73.571,4))

 
local function nstr(x,n)
  return  string.format("%.".. n .."f",x) end

local function n5(x,n) return nstr(x,5) end
local function n4(x,n) return nstr(x,4) end
local function n3(x,n) return nstr(x,3) end
local function n2(x,n) return nstr(x,2) end

local function main(t) 
  if next(t) ~= nil then tests(t) end 
  report()
  globals()  end

return {k=main,nstr=nstr,n2=n2,n3=n3,n4=n4,n5=n5}

Legal

LURE, Copyright (c) 2017, Tim Menzies All rights reserved, BSD 3-Clause License

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

  • Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
  • Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
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