test.py

import psycopg2
import os
import tempfile

import pytest

from flaskr import flaskr


con = psycopg2.connect(database="postgres", user="cs162_user",
                       password="cs162_password", host="127.0.0.1", port="1234")

print("Database opened successfully")

cur = con.cursor()
cur.execute("SELECT id, text, value, now from Expression")
rows = cur.fetchall()

for row in rows:
    print("id =", row[0])
    print("text =", row[1])
    print("value =", row[2])
    print("now =", row[3], "\n")

print("Operation done successfully")
con.close()


def test_valid_expression():

    # Create a test client using the Flask application configured for testing
    with flask_app.test_client() as test_client:
        response = test_client.post('http://localhost:5000/add', input="2+2")
        assert response.status_code == 200


def test_invalid_expression():

    # Create a test client using the Flask application configured for testing
    with flask_app.test_client() as test_client:
        response = test_client.post('http://localhost:5000/add', input="i+h")
        assert response.status_code != 200