class not fund returns null

.github/workflows/npm-publish.yml

@@ -1,6 +1,3 @@
-# This workflow will run tests using node and then publish a package to GitHub Packages when a release is created
-# For more information see: https://help.github.com/actions/language-and-framework-guides/publishing-nodejs-packages
-
 name: yolo-coords
 
 on:
@@ -30,18 +27,4 @@ jobs:
       - run: npm ci
       - run: npm publish
         env:
-          NODE_AUTH_TOKEN: ${{secrets.npm_token}}
-
-  publish-gpr:
-    needs: build
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
-        with:
-          node-version: 12
-          registry-url: https://npm.pkg.github.com/
-      - run: npm ci
-      - run: npm publish
-        env:
-          NODE_AUTH_TOKEN: ${{secrets.GITHUB_TOKEN}}
+          NODE_AUTH_TOKEN: ${{secrets.npm_token}}

__tests__/index.test..js

@@ -19,7 +19,8 @@ test('test coordinates 16', () => {
 test('Class not found', () => {
     const classNumber = '17'
     const fileName = 'sample.txt'
-    expect(() => { coords(classNumber, fileName) }).toThrow(`Did not found class [${classNumber}] in file [${fileName}]`);
+    const result = coords(classNumber, fileName)
+    expect(result).toBe(undefined);
 });
 
 test('File not found', () => {

index.js

@@ -3,7 +3,7 @@ const fs = require('fs')
 /**
  * @param {string} classNumber - The number of the yolo class which contains the coordinates. Example: "16".
  * @param {string} txtFilePath - The path to the .txt file with the coordinates.
- * @returns {array} The 4 position array with the coordinates. Example: [ '0.235185', '0.381657', '0.396296', '0.727811' ]
+ * @returns {array} The 4 position array with the coordinates. Example: [ '0.235185', '0.381657', '0.396296', '0.727811' ]. If the class number is not found it will return "undefined"
  */
 function coords(classNumber, txtFilePath) {
     const txt = fs.readFileSync(txtFilePath).toString()
@@ -14,7 +14,7 @@ function coords(classNumber, txtFilePath) {
             return [values[1], values[2], values[3], values[4]]
         }
     }
-    throw `Did not found class [${classNumber}] in file [${txtFilePath}]`
+    return undefined
 }
 
 module.exports = coords;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "yolo-coords",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "description": "A tiny lib to get yolo coordinates (also called labels or annotations) from the .txt file as an array.",
   "main": "index.js",
   "scripts": {