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index.test.ts
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index.test.ts
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/**
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
*/
import each from '../';
describe('array', () => {
describe('.add', () => {
each([
[0, 0, 0],
[0, 1, 1],
[1, 1, 2],
]).test('returns the result of adding %s to %s', (a, b, expected) => {
expect(a + b).toBe(expected);
});
});
});
describe('concurrent', () => {
describe('.add', () => {
each([
[0, 0, 0],
[0, 1, 1],
[1, 1, 2],
]).test.concurrent(
'returns the result of adding %s to %s',
async (a, b, expected) => {
expect(a + b).toBe(expected);
},
);
});
});
describe('template', () => {
describe('.add', () => {
each`
a | b | expected
${0} | ${0} | ${0}
${0} | ${1} | ${1}
${1} | ${1} | ${2}
`.test('returns $expected when given $a and $b', ({a, b, expected}) => {
expect(a + b).toBe(expected);
});
});
});
test('throws an error when not called with the right number of arguments', () => {
expect(() =>
each(
[
[1, 1, 2],
[1, 2, 3],
[2, 1, 3],
],
'seems like a title but should not be here',
() => {},
),
).toThrowErrorMatchingSnapshot();
});