log4js-node/test/tap/global-log-level-test.js

'use strict';

const test = require('tap').test;

test('log4js global loglevel', (batch) => {
  batch.test('global loglevel', (t) => {
    const log4js = require('../../lib/log4js');

    t.test('set global loglevel on creation', (assert) => {
      const log1 = log4js.getLogger('log1');
      let level = 'OFF';
      if (log1.level.toString() === level) {
        level = 'TRACE';
      }
      assert.notEqual(log1.level.toString(), level);

      log4js.setGlobalLogLevel(level);
      assert.equal(log1.level.toString(), level);

      const log2 = log4js.getLogger('log2');
      assert.equal(log2.level.toString(), level);
      assert.end();
    });

    t.test('global change loglevel', (assert) => {
      const log1 = log4js.getLogger('log1');
      const log2 = log4js.getLogger('log2');
      let level = 'OFF';
      if (log1.level.toString() === level) {
        level = 'TRACE';
      }
      assert.notEqual(log1.level.toString(), level);

      log4js.setGlobalLogLevel(level);
      assert.equal(log1.level.toString(), level);
      assert.equal(log2.level.toString(), level);
      assert.end();
    });

    t.test('override loglevel', (assert) => {
      const log1 = log4js.getLogger('log1');
      const log2 = log4js.getLogger('log2');
      let level = 'OFF';
      if (log1.level.toString() === level) {
        level = 'TRACE';
      }
      assert.notEqual(log1.level.toString(), level);

      const oldLevel = log1.level.toString();
      assert.equal(log2.level.toString(), oldLevel);

      log2.setLevel(level);
      assert.equal(log1.level.toString(), oldLevel);
      assert.equal(log2.level.toString(), level);
      assert.notEqual(oldLevel, level);

      log2.removeLevel();
      assert.equal(log1.level.toString(), oldLevel);
      assert.equal(log2.level.toString(), oldLevel);
      assert.end();
    });

    t.test('preload loglevel', (assert) => {
      const log1 = log4js.getLogger('log1');
      let level = 'OFF';
      if (log1.level.toString() === level) {
        level = 'TRACE';
      }
      assert.notEqual(log1.level.toString(), level);

      const oldLevel = log1.level.toString();
      log4js.getLogger('log2').setLevel(level);

      assert.equal(log1.level.toString(), oldLevel);

      // get again same logger but as different variable
      const log2 = log4js.getLogger('log2');
      assert.equal(log2.level.toString(), level);
      assert.notEqual(oldLevel, level);

      log2.removeLevel();
      assert.equal(log1.level.toString(), oldLevel);
      assert.equal(log2.level.toString(), oldLevel);
      assert.end();
    });

    t.test('set level on all categories', (assert) => {
      // Get 2 loggers
      const log1 = log4js.getLogger('log1');
      const log2 = log4js.getLogger('log2');

      // First a test with 2 categories with different levels
      const config = {
        levels: {
          log1: 'ERROR',
          log2: 'WARN'
        }
      };
      log4js.configure(config);

      // Check if the levels are set correctly
      assert.equal('ERROR', log1.level.toString());
      assert.equal('WARN', log2.level.toString());

      log1.removeLevel();
      log2.removeLevel();

      // Almost identical test, but now we set
      // level on all categories
      const config2 = {
        levels: {
          '[all]': 'DEBUG'
        }
      };
      log4js.configure(config2);

      // Check if the loggers got the DEBUG level
      assert.equal('DEBUG', log1.level.toString());
      assert.equal('DEBUG', log2.level.toString());
      assert.end();
    });
    t.end();
  });

  batch.end();
});