@santi100/binet-formula/tests/main.test.js

Santi's Basic Binet Formula Library: What is F_n?

// Generated by CodiumAI

describe('binetFormula_function', () => {
    const binetFormula = require('..');
    // Tests that the function returns 0 when n is 0
    it('test_happy_path_n_0', () => {
        expect(binetFormula(0)).toBe(0);
    });

    // Tests that the function returns 1 when n is 1
    it('test_happy_path_n_1', () => {
        expect(binetFormula(1)).toBe(1);
    });

    // Tests that the function returns 1 when n is 2
    it('test_happy_path_n_2', () => {
        expect(binetFormula(2)).toBe(1);
    });

    // Tests that the function returns a really big number when n is Number.MAX_SAFE_INTEGER
    it('test_edge_case_n_max_safe_integer', () => {
        const result = binetFormula(Number.MAX_SAFE_INTEGER);
        expect(result).toBeGreaterThan(1e+100);
    });

    // Tests that the function throws an error when n is negative
    it('test_edge_case_n_negative', () => {
        expect(() => binetFormula(-1)).toThrow();
    });

    // Tests that the function throws an error when n is not an integer
    it('test_edge_case_n_not_integer', () => {
        expect(() => binetFormula(1.5)).toThrow();
    });
});