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[rbdr/cologne] / test / formatters / simple.js

'use strict';

const Tap = require('tap');

const SimpleFormatter = require('../../lib/formatters/simple');

// Prepare the test

Tap.plan(12);

const logObject = {
  _timestamp: BigInt(Date.now()) * 1000000n,
  _cologneLog: '1.0.0',
  _from: 'Dummy Logger',
  _level: 3,
  _levelString: 'error',
  message: 'testing stuff!'
};
const isoDate = (new Date(Number(logObject._timestamp) / 1000000)).toISOString();

const plainFormatter = new SimpleFormatter();
const colorFormatter = new SimpleFormatter({
  colorize: true
});

/**
 * TEST: #format() - plain
 */

const plainFormattedString = plainFormatter.format(logObject);

Tap.equal(typeof plainFormattedString, 'string',
  '#format() should output a string in plain mode');

Tap.ok(plainFormattedString.match(logObject._from),
  '#format() should include the from property in plain mode');

Tap.ok(plainFormattedString.match(isoDate),
  '#format() should include the timestamp property in iso format in plain mode');

Tap.ok(plainFormattedString.match(logObject._levelString),
  '#format() should include the level string property in plain mode');

Tap.ok(plainFormattedString.match(logObject.message),
  '#format() should include the message property in plain mode');

/**
 * TEST: #format() - colorized
 */

const colorFormattedString = colorFormatter.format(logObject);

Tap.equal(typeof colorFormattedString, 'string',
  '#format() should output a string in color mode');

Tap.ok(colorFormattedString.match(logObject._from),
  '#format() should include the from property in color mode');

Tap.ok(colorFormattedString.match(isoDate),
  '#format() should include the timestamp property in iso format in color mode');

Tap.ok(colorFormattedString.match(logObject._levelString),
  '#format() should include the level string property in color mode');

Tap.ok(colorFormattedString.match(logObject.message),
  '#format() should include the message property in color mode');

Tap.equal(colorFormattedString.split(String.fromCharCode(27) + '[31m').length, 2,
  '#format() should colorize the string');

Tap.equal(colorFormattedString.split(String.fromCharCode(27) + '[0m').length, 2,
  '#format() should colorize only a bit of the string');