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JavaScript - catch exception in Jest test
6 points
In this short article, we would like to show how to catch expected exception writing tests in Jest in JavaScript.
Quick solution:
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test('test name here ...', () => {2
expect(() => doSomeLogic()).toThrow();3
});
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import doSomeLogic from './doSomeLogic';2
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describe('Some logic', () => {4
test('throws always exception', () => {5
expect(() => doSomeLogic()).toThrow();6
});7
});Output:
doSomeLogic.js file:
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const doSomeLogic = () => {2
throw new Error('Some exception message here ...');3
};4
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export default doSomeLogic;
