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jest cambio clinton #84

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19 changes: 19 additions & 0 deletions app.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
// Declaramos una función con el nombre exacto "formEuroToDollar"
const fromEuroToDollar = function(valueInEuro) {
// Convertimos el valor a dólares
let valueInDollar = valueInEuro * 1.07;
// Retornamos el valor en dólares
return valueInDollar;
}


const sum = (a,b) => {
return a + b
}

// Solo un registro en consola para nosotros
console.log(sum(7,3))

// Exporta la función para usarla en otros archivos
// (similar a la palabra clave "export" cuando se usa webpack)
module.exports = { sum, fromEuroToDollar }
17 changes: 17 additions & 0 deletions homework.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,17 @@
function fromDollarToYen(dollars) {
return dollars * 156.5;
}


function fromYenToPound(yen) {
return yen * (0.87 / 156.5);
}

console.log(fromDollarToYen(1));
console.log(fromDollarToYen(10));
console.log(fromDollarToYen(100));


console.log(fromYenToPound(1));
console.log(fromYenToPound(100));
console.log(fromYenToPound(1000));
22 changes: 22 additions & 0 deletions test.js
Original file line number Diff line number Diff line change
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const { sum } = require('./app.js');

// one euro is:
let oneEuroIs = {
"JPY": 156.5, // japan yen
"USD": 1.07, // us dollar
"GBP": 0.87, // british pound
}

test("One euro should be 1.07 dollars", function() {
// Importo la funcion desde app.js
const { fromEuroToDollar } = require('./app.js');

// Uso la función como debe ser usada
const dollars = fromEuroToDollar(3.5);

// Si 1 euro son 1.07 dólares, entonces 3.5 euros debe ser (3.5 * 1.07)
const expected = 3.5 * 1.07;

// Hago mi comparación (la prueba)
expect(fromEuroToDollar(3.5)).toBe(3.745); // 1 euro son 1.07 dólares, entonces 3.5 euros deberían ser = (3.5 * 1.07)
})