import main
import pytest
from os.path import exists

def test_likelyQuestion():
  likelyQuestion = main.mostLikely("birthday")
  assert likelyQuestion['question'] == 'What is your birthday?'

def test_likelyAnswer():
  likelyAnswer = main.mostLikely("weather today")
  assert likelyAnswer['answer'] == 'Same as yesterday.'

def test_detection_of_no_user_input():
  userQuestion = ''
  assert not main.continueQuestions(userQuestion)

def testDetectionOfUserInput():
  userQuestion = 'weather'
  assert main.continueQuestions(userQuestion)

def testFaqJsonFileExists():
  fileName = exists('./faq.json')
  assert fileName

#  Check whether log file gets made after a successful run

def testLogfileExists():
  logName = exists('./asked_questions_log.txt')
  assert logName

def readFileLines(fileName):
  file = open(fileName, "r")
  # Create a count of non-empty lines
  nonemptyLines = [line.strip("\n") for line in file if line != "\n"]
  lineCount = len(nonemptyLines)
  file.close()
  return lineCount

def testLogfileLinecountIncreases():
  oldLineCount = readFileLines("./asked_questions_log.txt")

  userQuestion = 'weather'
  main.continueQuestions(userQuestion)

  newLineCount = readFileLines("./asked_questions_log.txt")

  assert newLineCount == oldLineCount + 1

def testDetectionIfUserEntersSymbolsOnly():
  userQuestion = '#$%^&*'
  assert not main.continueQuestions(userQuestion)

def testDetectionIfUserEntersSpaceOnly():
  userQuestion = '    '
  assert not main.continueQuestions(userQuestion)