supertest jest

Jest Expect Methods https://jestjs.io/docs/en/expect

it = test

 it('count > 30', async () => {  
            await reqTarget.get("/members").expect(200)  
            .then((res) => {  
                //Can use foreach, more easy  
                for(key in res.body){  
                    //console.log(res.body\[key\].cou );  
                    if (res.body\[key\].cou  > 100) throw new Error("count: "+res.body\[key\].cou +" > 30");  //for vars value check message  
                    expect(res.body\[key\].cou ).toBeLessThan(30);  
                }  
            });  
        });