duktape test unit

minctest.js

//
// MINCTEST - Minimal Duktape Test Library
// This is based on minctest.h (https://codeplea.com/minctest)
// 

/*
feel to free to improve
you will need implement a module loading OR embed 'all-in-one'
checkout: https://wiki.duktape.org/howtomodules



main.js

function sum(x,y) {
	return x+y;
}

var tu = require('./test.js')
var lok = tu.ok
var lrun = tu.run
var lresults = tu.results
var lequal = tu.equal
var lfequal = tu.fequal

lrun('sum', function() {
	lok(1==11)
	lequal( 1, 1 )
	lequal( 1, '1' )
	lfequal( 1, 1.001 )
}); 

lresults()

// EOF //

output:
$ /cygdrive/x/test.exe main.js
sum
        [anon] (hello.test.js:35)

        pass:3 fail:1

SOME TESTS FAILED (3/4)
*/

var LTEST_FLOAT_TOLERANCE = 0.001;
var ltests = 0;
var lfails = 0;

// https://duktape.org/guide#errorobjects
var caller = function() {
  var st = new Error().stack;
  st = st.split(/\r?\n/)[3];
  st = st.substr(st.indexOf("at ") + 3);
  return st;
};

var lok = function(test) {
    ltests += 1;
    if (!test) {
        lfails += 1;
        console.log("\t" + caller() + "\n");
    }
};

var lequal = function(a, b) {
    ltests += 1;
    if (a != b) {
        lfails += 1;
        console.log("\t (" + a + " != " + b + ")\n");
    }
};

var lfequal = function(a, b) {
    ltests += 1;
    if (Math.abs(a - b) > LTEST_FLOAT_TOLERANCE) {
        lfails += 1;
        console.log("\t (" + a + " != " + b + ")\n");
    }
};

var lrun = function(name, testfunc) {
    var ts = ltests;
    var fs = lfails;
    console.log(name);
    testfunc();
    console.log("\tpass:" + ((ltests-ts)-(lfails-fs)) + " fail:" + (lfails-fs) + "\n");
};

var lresults = function() {
    if (lfails === 0) {
        console.log("ALL TESTS PASSED (" + ltests + "/" + ltests + ")");
    } else {
        console.log("SOME TESTS FAILED (" + (ltests-lfails) + "/" + ltests + ")");
    }
    return lfails !== 0;
};

exports.ok = lok;
exports.run = lrun;
exports.results = lresults;
exports.equal = lequal;
exports.fequal = lfequal;