console.test() idea from mergerino-refactored gist...

console-test.js

// 19 June 2021
// 23 Feb 2022

// 29-30 March 2022: more ideas (bottom)

// draft idea from my mergerino refactored gist
// at https://gist.github.com/dfkaye/da82d3b7be2f97359510973a788c0285

// should add console.test.suite(name) that records subsequent
// console.test() runs (like QUnit)

// Note that console.assert() does not crash the thread.
// Could use an async/await assert()
// https://gist.github.com/dfkaye/95f3f68dc94d110a4a1f98c3b15d23ba

// Should really make console.test into a repo...

console.test = function(name, test) {
  var message = "Passed"
  try { test() }
  catch (error) { message = "Failed: " + error }
  finally { console.dir({ name, message }) }
}

console.test("deletes undefined keys", function () {
  var state = {
    prop: "prop",
    deep: { prop: "deep" }
  }

  var newState = merge(state, {
    prop: undefined,
    deep: { prop: undefined },
    undefined: undefined, // deleting non existent key
    null: null
  })

  console.assert(Object.keys(newState).sort().join(" ") == "deep other", Object.keys(newState).join(" "))
  console.assert(!("prop" in newState.deep), newState.deep.prop)
})


/* More Ideas */

// 1. overwrite console.assert with a counter function and apply arguments to real assert

var failing = 0, passing = 0;
var { assert } = console;
console.assert = function(assertion, ...rest) {
  assertion ? passing++ : failing++;
  assert.apply(console, [assertion, ...rest]);

  return !!assertion;
}

// 2. use string#test idea 2014 instead

// see string.test gist: https://gist.github.com/dfkaye/0461d4805817c21a5609

// 3. console.test can use $, $$, $x(path) etc. for shorthand DOM element access

// see google chrome docs: https://developer.chrome.com/docs/devtools/console/utilities/#querySelector-function

// 4. console.log pretty print colors

// see parse-integer.js tests: https://gist.github.com/dfkaye/d2fb31db090fc52a7f79883d1ab1da1c#file-parse-integer-js

// 5. async-assert, rather than crashing assert

// see https://gist.github.com/dfkaye/95f3f68dc94d110a4a1f98c3b15d23ba

// 6. object#assert, rather than console.assert 

// see https://gist.github.com/dfkaye/96112ac0fb956da9d8b5c8fb5255fbc3