Testing with Jest

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OwnerPetter Rasmussen
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// Note that the run command is set to 'jest' module.exports = { clearMocks: true, coverageProvider: "v8", testEnvironment: "node", };
function sum(a, b) { return a + b; } module.exports = sum;
const sum = require('./sum'); test('adds 1 + 2 to equal 3', () => { expect(sum(1, 2)).toBe(3); });
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