switched nedb to nedb-promises (#37)

* breaking change: switched to nedb-promises
* Linting
* some dev dependencies
* more tests
* updated package version
* bug fixing
* changed isNaN to isString
* (fix) args[0]

__tests__/functions/CompareResults.js

@@ -3,7 +3,7 @@ require('module-alias/register');
 const { CompareResults } = require('@dsabot/CompareResults');
 
 it('should return an object', () => {
-    let Obj = {
+    const Obj = {
         Passed: 0,
         CriticalHit: 0,
         Fumbles: 0,
@@ -15,7 +15,7 @@ it('should return an object', () => {
 });
 
 it('should match No. of Fumbles', () => {
-    let Obj = {
+    const Obj = {
         Passed: 0,
         CriticalHit: 0,
         Fumbles: 2,
@@ -26,7 +26,7 @@ it('should match No. of Fumbles', () => {
 });
 
 it('should match No. of Passed', () => {
-    let Obj = {
+    const Obj = {
         Passed: 3,
         CriticalHit: 0,
         Fumbles: 0,
@@ -37,7 +37,7 @@ it('should match No. of Passed', () => {
 });
 
 it('should match No. of Critical Hits', () => {
-    let Obj = {
+    const Obj = {
         Passed: 3,
         CriticalHit: 2,
         Fumbles: 0,
@@ -48,7 +48,7 @@ it('should match No. of Critical Hits', () => {
 });
 
 it('should decrease Points remaining', () => {
-    let Obj = {
+    const Obj = {
         Passed: 3,
         CriticalHit: 0,
         Fumbles: 0,

__tests__/functions/findMessage.js

@@ -0,0 +1,6 @@
+require('module-alias/register');
+const { findMessage } = require('@dsabot/findMessage');
+
+it('should capitalize the first letter.', () => {
+    expect(findMessage('ERROR')).toBe('Irgendwas ist schief gelaufen. 🤔');
+});

__tests__/functions/isEmpty.js

@@ -0,0 +1,12 @@
+require('module-alias/register');
+const { isEmpty } = require('@dsabot/isEmpty');
+
+it('should return true statements', () => {
+    expect(isEmpty({})).toBeTruthy();
+    expect(isEmpty()).toBeTruthy();
+    expect(isEmpty('')).toBeTruthy();
+    expect(isEmpty([])).toBeTruthy();
+    expect(isEmpty({ key: 'value' })).toBeFalsy();
+    expect(isEmpty([null])).toBeFalsy();
+    expect(isEmpty([''])).toBeFalsy();
+});