describe('mathEnforcer function test', () => {
    describe('addFive function test', () => {
        it('type of num is !== number', () => {
            assert(mathEnforcer.addFive('TEST') === undefined)
        });
        it('type of num is !== number (arr)', () => {
            assert(mathEnforcer.addFive([]) === undefined)
        });
        it('type of num is !== number (obj)', () => {
            assert(mathEnforcer.addFive({}) === undefined)
        });
        it('type of num is !== number (undefined)', () => {
            assert(mathEnforcer.addFive(undefined) === undefined)
        });
        it('type of num is !== number (null)', () => {
            assert(mathEnforcer.addFive(null) === undefined)
        });
        it('type of num is === number', () => {
            assert(mathEnforcer.addFive(5) === 10)
        });
        it('negative type of num is === number ', () => {
            assert(mathEnforcer.addFive(-5) === 0)
        });
        it('negative type of num is === number', () => {
            assert(mathEnforcer.addFive(5.5) === 10.5)
        });
    });
    describe('substractTen', () => {
        it('type of num is !== number', () => {
            assert(mathEnforcer.subtractTen('TEST') === undefined)
        });
        it('type of num is !== number (arr)', () => {
            assert(mathEnforcer.subtractTen([]) === undefined)
        });
        it('type of num is !== number (obj)', () => {
            assert(mathEnforcer.subtractTen({}) === undefined)
        });
        it('type of num is !== number (undefined)', () => {
            assert(mathEnforcer.subtractTen(undefined) === undefined)
        });
        it('type of num is !== number (null)', () => {
            assert(mathEnforcer.subtractTen(null) === undefined)
        });
        //wqeqweqweq
        it('positive integer num -10', () => {
            assert(mathEnforcer.subtractTen(5) === -5)
        });
        it('negative integer num -10', () => {
            assert(mathEnforcer.subtractTen(-5) === -15)
        });
        it('decimel num -10', () => {
            assert(mathEnforcer.subtractTen(15.5) === 5.5)
        });
    });
    describe('sum', () => {
        it('two positive numbers', () => {
            assert(mathEnforcer.sum(10, 10) === 20)
        });
        it('two negaive numbers', () => {
            assert(mathEnforcer.sum(-10, -2.5) === -12.5)
        });
        it('two decimal numbers', () => {
            assert(mathEnforcer.sum(3.2, 2.3) === 5.5)
        });

        it('return undefined first str', () => {
            assert(mathEnforcer.sum('rere', 10) === undefined);
        });
        it('return undefined second str', () => {
            assert(mathEnforcer.sum(10, 'rere') === undefined);
        });
        it('return undefined arr', () => {
            assert(mathEnforcer.sum(10, []) === undefined);
        });
        it('return undefined obj', () => {
            assert(mathEnforcer.sum(10, {}) === undefined);
        });

    });
});