Example of testing composite multiplyThenDivide, many cases

Tests for multiplyThenDivide

describe('multiplyThenDivide', function() {
    
    it('should return 0 when multiplying by 0, dividing by 2', function() {
        assert.equal(multiplyThenDivide(0, 1, 2), 0);
    });

    it('should return half of value when multiplying by 5, dividing by 2', function() {
        assert.equal(multiplyThenDivide(1, 5, 2), 2.5);
    });

    it('should return the correct result when two numbers are multiplied, dividing by 3', function() {
        assert.equal(multiplyThenDivide(6, 7, 3), 14);
    });

    it('should return a negative result when a positive and negative are multiplied together', function() {
        assert.equal(multiplyThenDivide(-3, 4, 6), -2);
    });

    it('should return a positive result when two negative numbers are multiplied', function() {
        assert.equal(multiplyThenDivide(-5, -6, 3), 10);
    });

});