On Thursday, June 25, 2015 at 8:20:52 AM UTC-7, fl wrote:
> Hi,
>
> I download and install pyPDF2 library online. It says the test can run by:
>
>
> python -m unittest Tests.tests
>
>
> tests.py is under folder PyPDF2-master\Tests\
>
>
> The above command line does run and give output message, but I don't
> understand why it run after I read tests.py:
>
>
> ///////////////////////////////
> import os, sys, unittest
>
> # Configure path environment
> TESTS_ROOT = os.path.abspath(os.path.dirname(__file__))
> PROJECT_ROOT = os.path.dirname(TESTS_ROOT)
> RESOURCE_ROOT = os.path.join(PROJECT_ROOT, 'Resources')
>
> sys.path.append(PROJECT_ROOT)
>
> # Test imports
> import unittest
> from PyPDF2 import PdfFileReader
>
>
> class PdfReaderTestCases(unittest.TestCase):
>
> def test_PdfReaderFileLoad(self):
> ''' Test loading and parsing of a file. Extract text of the
> file and compare to expected
> textual output. Expected outcome: file loads, text
> matches expected.
> '''
> with open(os.path.join(RESOURCE_ROOT, 'crazyones.pdf'), 'rb')
> as inputfile:
>
> # Load PDF file from file
> ipdf = PdfFileReader(inputfile)
> ipdf_p1 = ipdf.getPage(0)
>
> # Retrieve the text of the PDF
> pdftext_file = open(os.path.join(RESOURCE_ROOT,
> 'crazyones.txt'), 'r')
> pdftext = pdftext_file.read()
> ipdf_p1_text = ipdf_p1.extractText()
>
> # Compare the text of the PDF to a known source
> self.assertEqual(ipdf_p1_text.encode('utf-8',
> errors='ignore'), pdftext,
> msg='PDF extracted text differs from expected
> value.\n\nExpected:\n\n%r\n\nExtracted:\n\n%r\n\n'
> % (pdftext,
> ipdf_p1_text.encode('utf-8', errors='ignore')))
> //////////////////////////////////////
>
> It only gives a class PdfReaderTestCases() substantiation. I have read
> usage on class, but I have not found the answer.
> Can you help me on why the command line can run the test?
>
> Thanks,
Thanks for reading. I make it out that it is a feature of unittest module.
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