HTMLTestRunner usage

demo_htmltestrunner.py

import unittest
import HTMLTestRunner


class SampleTest(unittest.TestCase):
    def test_pass(self):
        """Test to demonstrate pass condition"""
        self.assertTrue(True)        

    def test_fail(self):
        """Test to demonstrate fail condition"""
        self.assertTrue(False)

def suite():
    s1 = unittest.TestLoader().loadTestsFromTestCase(SampleTest)
    return unittest.TestSuite([s1])

def run(suite, report = "report.html"):
    with open(report, "w") as f:
        HTMLTestRunner.HTMLTestRunner(
                    stream = f,
                    title = 'Sample report',
                    verbosity = 2,
                    description = 'Sample test for HTMLTestRunner usage'
                    ).run(suite)
    
if __name__ == "__main__":  
    run(suite())

its generating bank html. can you pls let me know how to generate the report with results