83a6a6ea32
* chore: make aware eslint that we use jest By setting up the jest environment, we no longer need to declare the 'test' global in the configuration. * chore: don't need to import expect, it's a jest environment global * chore: don't need to import expect when creating undefined test
42 lines
1.3 KiB
JavaScript
42 lines
1.3 KiB
JavaScript
const {toSafeInteger} = require('./_30s.js');
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test('toSafeInteger is a Function', () => {
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expect(toSafeInteger).toBeInstanceOf(Function);
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});
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test('Number(toSafeInteger(3.2)) is a number', () => {
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expect(Number(toSafeInteger(3.2))).toBeTruthy();
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});
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test('Converts a value to a safe integer', () => {
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expect(toSafeInteger(3.2)).toBe(3);
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});
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test("toSafeInteger('4.2') returns 4", () => {
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expect(toSafeInteger('4.2')).toBe(4);
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});
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test('toSafeInteger(4.6) returns 5', () => {
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expect(toSafeInteger(4.6)).toBe(5);
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});
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test('toSafeInteger([]) returns 0', () => {
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expect(toSafeInteger([])).toBe(0);
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});
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test('isNaN(toSafeInteger([1.5, 3124])) is true', () => {
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expect(isNaN(toSafeInteger([1.5, 3124]))).toBeTruthy();
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});
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test("isNaN(toSafeInteger('string')) is true", () => {
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expect(isNaN(toSafeInteger('string'))).toBeTruthy();
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});
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test('isNaN(toSafeInteger({})) is true', () => {
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expect(isNaN(toSafeInteger({}))).toBeTruthy();
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});
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test('isNaN(toSafeInteger()) is true', () => {
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expect(isNaN(toSafeInteger())).toBeTruthy();
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});
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test('toSafeInteger(Infinity) returns 9007199254740991', () => {
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expect(toSafeInteger(Infinity)).toBe(9007199254740991);
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});
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let start = new Date().getTime();
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toSafeInteger(3.2);
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let end = new Date().getTime();
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test('toSafeInteger(3.2) takes less than 2s to run', () => {
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expect(end - start < 2000).toBeTruthy();
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});
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