refacto tests

main.test.js

@@ -5,9 +5,11 @@ const app = require("./main");
 const expected = {
   c:0.0488, dt:86400, ud0:1000, sigPeriod:432000
 }
-test('app convert raw data to expected', () => {
+describe('app convert raw data to expected', () => {
   const resultat = app(data);
   for(let key in expected){
+    it(`app parse ${key}`, () => {
       expect(resultat[key]).toBe(expected[key]);
+    });
   }
 });