import json


def test_post_with_wrong_content_type(client):
    data = json.dumps({})
    response = client.post("/", data=data)
    assert response.status_code == 415


def test_post_with_empty_data(client):
    data = json.dumps({})
    response = client.post("/", data=data, content_type="application/json")
    assert response.status_code == 400


def test_post_with_data(client):
    response = client.get("/?key=abc")
    assert response.status_code == 404
    assert response.get_json() == {
        "error": "404 Not Found: Key not found",
    }
    data = json.dumps({"key": "abc", "val": "def"})
    response = client.post("/", data=data, content_type="application/json")
    assert response.status_code == 201
    assert response.get_json() == {
        "message": "Ok",
        "data": {"key": "abc", "val": "def"},
    }
    client.delete("/", data=data, content_type="application/json")

    response = client.get("/?key=abc")
    assert response.status_code == 404
    assert response.get_json() == {
        "error": "404 Not Found: Key not found",
    }


def test_post_without_key(client):
    response = client.get("/?key=abc")
    assert response.status_code == 404
    assert response.get_json() == {
        "error": "404 Not Found: Key not found",
    }
    data = json.dumps({"val": "def"})
    response = client.post("/", data=data, content_type="application/json")
    assert response.status_code == 400
    assert response.get_json() == {"error": "400 Bad Request: 'key' required"}


def test_post_without_value(client):
    response = client.get("/?key=abc")
    assert response.status_code == 404
    assert response.get_json() == {
        "error": "404 Not Found: Key not found",
    }

    data = json.dumps({"key": "abc"})
    response = client.post("/", data=data, content_type="application/json")
    assert response.status_code == 400
    assert response.get_json() == {"error": "400 Bad Request: 'val' required"}

    response = client.get("/?key=abc")
    assert response.status_code == 404
    assert response.get_json() == {
        "error": "404 Not Found: Key not found",
    }


def test_post_with_data_double_adding(client):
    response = client.get("/?key=abc")
    assert response.status_code == 404
    assert response.get_json() == {
        "error": "404 Not Found: Key not found",
    }

    data = json.dumps({"key": "abc", "val": "def"})

    response = client.post("/", data=data, content_type="application/json")
    assert response.status_code == 201
    assert response.get_json() == {
        "message": "Ok",
        "data": {"key": "abc", "val": "def"},
    }

    response = client.post("/", data=data, content_type="application/json")
    assert response.status_code == 400
    assert response.get_json() == {
        "error": "400 Bad Request: Key alredy exist",
    }

    client.delete("/", data=data, content_type="application/json")

    response = client.get("/?key=abc")
    assert response.status_code == 404
    assert response.get_json() == {
        "error": "404 Not Found: Key not found",
    }