def test_utilio_cat_invalid_file(self):
with redirect_stdout() as stream:
with prepare_workdir() as test_dir:
output = cat(test_dir)
self.assertFalse(output)
self.assertEqual(stream.getvalue(), '')
def test_utilio_cat_missing_file(self):
with redirect_stdout() as stream:
with prepare_workdir() as test_dir:
test_file = os.path.join(test_dir, 'missing-file')
output = cat(test_file)
self.assertFalse(output)
self.assertEqual(stream.getvalue(), '')
def test_utilio_cat_valid_empty(self):
with redirect_stdout() as stream:
with prepare_workdir() as test_dir:
test_file = os.path.join(test_dir, 'test')
with open(test_file, 'w'):
pass # empty
output = cat(test_file)
self.assertTrue(output)
self.assertEqual(stream.getvalue(), '')
def test_utilio_cat_valid_contents_single(self):
with redirect_stdout() as stream:
with prepare_workdir() as test_dir:
test_file = os.path.join(test_dir, 'test')
with open(test_file, 'w') as f:
f.write('this is a test')
output = cat(test_file)
self.assertTrue(output)
self.assertEqual(stream.getvalue(), 'this is a test')
def test_utilio_cat_valid_contents_multiple(self):
with redirect_stdout() as stream:
with prepare_workdir() as test_dir:
test_file1 = os.path.join(test_dir, 'test1')
with open(test_file1, 'w') as f:
f.write('1')
test_file2 = os.path.join(test_dir, 'test2')
with open(test_file2, 'w') as f:
f.write('2')
test_file3 = os.path.join(test_dir, 'test3')
with open(test_file3, 'w') as f:
f.write('3')
output = cat(test_file1, test_file2, test_file3)
self.assertTrue(output)
self.assertEqual(stream.getvalue(), '123')