import unittest
import io
import re
from unittest import mock
import math
import student_X as main #Replace student_X with your filename 
import sys
import io
from io import StringIO
    
    
    
 

class PrintHypotenuseLengthTests(unittest.TestCase):
    
    def test_default_case(self):
        function = main.print_hypotenuse_length
        

        try:
            docstring = function.__doc__
            docstring = docstring.strip()
        except:
            docstring = ""
        correct = docstring != ""
        message = "docstring is blank."
        self.assertTrue(correct, message) 

        

        with mock.patch('sys.stdout', new=io.StringIO()) as fake_stdout:
            function(3,4)
        output = fake_stdout.getvalue().strip()

        correct = "5.0"
        feedback = "Doesn't print the correct number when the parameters are 3 and 4."
        self.assertTrue(output == correct, feedback)

        

        with mock.patch('sys.stdout', new=io.StringIO()) as fake_stdout:
            function(8,6)
        output = fake_stdout.getvalue().strip()

        correct = "10.0"
        feedback = "Doesn't print the correct number when the parameters are 8 and 6."
        self.assertTrue(output == correct, feedback)

        

        with mock.patch('sys.stdout', new=io.StringIO()) as fake_stdout:
            function(10,10)
        output = fake_stdout.getvalue().strip()

        correct = str(10 * math.sqrt(2))
        feedback = "Doesn't print the correct number when the parameters are 10 and 10."
        self.assertTrue(output == correct, feedback)
        
        
if __name__ == "__main__":
    tests = PrintHypotenuseLengthTests()
    tests.test_default_case()