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86d333ee94
* chore: Switch to Node 20 + Vitest * chore: migrate to vitest mock functions * chore: code style (switch to prettier) * test: re-enable long-running test Seems the switch to Node 20 and Vitest has vastly improved the code's and / or the test's runtime! see #1193 * chore: code style * chore: fix failing tests * Updated Documentation in README.md * Update contribution guidelines to state usage of Prettier * fix: set prettier printWidth back to 80 * chore: apply updated code style automatically * fix: set prettier line endings to lf again * chore: apply updated code style automatically --------- Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com> Co-authored-by: Lars Müller <34514239+appgurueu@users.noreply.github.com>
28 lines
671 B
JavaScript
28 lines
671 B
JavaScript
import { calcFactorial } from '../Factorial'
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describe('calcFactorial', () => {
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it('should return a statement for value "0"', () => {
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expect(calcFactorial(0)).toBe(1)
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})
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it('should throw error for "null" and "undefined"', () => {
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expect(() => {
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calcFactorial(null)
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}).toThrow(Error)
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expect(() => {
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calcFactorial(undefined)
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}).toThrow(Error)
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})
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it('should throw error for negative numbers', () => {
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expect(() => {
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calcFactorial(-1)
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}).toThrow(Error)
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})
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it('should return the factorial of a positive number', () => {
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const positiveFactorial = calcFactorial(3)
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expect(positiveFactorial).toBe(6)
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})
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})
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