There is no functional difference between test() and it() - they are aliases of each other. Both are used to define individual test cases:
test('should add two numbers', () => {
expect(add(2, 3)).toBe(5);
});
it('should add two numbers', () => {
expect(add(2, 3)).toBe(5);
});
The choice between them is often stylistic. it() reads more naturally in BDD (Behavior Driven Development) style, while test() is more explicit about its purpose.
Rewriting in plainer words…
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