feat: initialize tests, docs and refactor

tests/logging.test.ts

@@ -1,7 +1,84 @@
-import * as logging from '../src/logging';
+import {expect, jest, test} from '@jest/globals';
 
 describe('Logger', () => {
     it('can be instantiated', () => {
         //const logger = new logging.Logger('test', 0);
     })
 });
+
+describe('getLevelName', () => {
+    var logging: any;
+
+    beforeEach(() => {
+        logging = require('../src/logging');
+    });
+
+    it('numeric to textual representation of built-ins', () => {
+        expect(
+            logging.getLevelName(logging.CRITICAL)
+        ).toBe('CRITICAL');
+        expect(
+            logging.getLevelName(logging.FATAL)
+        ).toBe('CRITICAL');
+        expect(
+            logging.getLevelName(logging.ERROR)
+        ).toBe('ERROR');
+        expect(
+            logging.getLevelName(logging.WARNING)
+        ).toBe('WARNING');
+        expect(
+            logging.getLevelName(logging.WARN)
+        ).toBe('WARNING');
+        expect(
+            logging.getLevelName(logging.INFO)
+        ).toBe('INFO');
+        expect(
+            logging.getLevelName(logging.DEBUG)
+        ).toBe('DEBUG');
+        expect(
+            logging.getLevelName(logging.NOTSET)
+        ).toBe('NOTSET');
+    });
+
+    it('textual to numeric representation of built-ins', () => {
+        expect(
+            logging.getLevelName('CRITICAL')
+        ).toBe(logging.CRITICAL);
+        expect(
+            logging.getLevelName('FATAL')
+        ).toBe(`Level FATAL`);
+        expect(
+            logging.getLevelName('ERROR')
+        ).toBe(logging.ERROR);
+        expect(
+            logging.getLevelName('WARNING')
+        ).toBe(logging.WARNING);
+        expect(
+            logging.getLevelName('WARN')
+        ).toBe('Level WARN');
+        expect(
+            logging.getLevelName('INFO')
+        ).toBe(logging.INFO);
+        expect(
+            logging.getLevelName('DEBUG')
+        ).toBe(logging.DEBUG);
+        expect(
+            logging.getLevelName('NOTSET')
+        ).toBe(logging.NOTSET);
+    });
+});
+
+
+describe('addLevelName', () => {
+    var logging: any;
+
+    beforeEach(() => {
+        logging = require('../src/logging');
+    });
+
+    it('numeric to textual representation of built-ins', () => {
+        logging.addLevelName(80, 'FOOBAR');
+        expect(logging.getLevelName(80)).toBe('FOOBAR');
+        expect(logging.getLevelName('FOOBAR')).toBe(80);
+    })
+});