test_blog.py

from app import create_app

# new client to send test requests
def make_client():
    # TESTING = true ->>> better error messages no server running to check this....
    app = create_app({"TESTING": True})
    return app.test_client()

def test_home():
    client = make_client()
    res = client.get("/")
    assert res.status_code == 200
    assert res.get_json() ["message"] == "Welcome to our Blog for testing"
    
def test_list_empty():
    client = make_client()
    res = client.get("/posts")
    data = res.get_json()
    assert res.status_code == 200
    assert data == {"posts": []}
    
    
    # need to check post id too (you can try on your own if you like will update the code soon :) 
    
# def test_create_and_gest_post():
#     client = make_client()
#     res = client.get("/posts", json={"title": "Hello", "body": "Hey MY first blog"})
#     assert res.status_code == 201
#     post =res.get_json()["post"]
#     assert post["title"] == "Hello"