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Diffstat (limited to 'tests_feedgenerator/test_stringio.py')
| -rw-r--r-- | tests_feedgenerator/test_stringio.py | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/tests_feedgenerator/test_stringio.py b/tests_feedgenerator/test_stringio.py deleted file mode 100644 index 3791035..0000000 --- a/tests_feedgenerator/test_stringio.py +++ /dev/null @@ -1,64 +0,0 @@ -import unittest - -from io import StringIO - -ENCODING = 'utf-8' - -S0 = 'hello world, Umlauts: äöüßÄÖÜ, Chinese: 四是四，十是十，十四是十四，四十是四十，四十四隻不識字之石獅子是死的' -S0_BYTES = 'fe fi foe fam'.encode(ENCODING) - -#print("###", StringIO, "###") - -class TestStringIO(unittest.TestCase): - - def test_001_text(self): - # If we throw unicode into the StringIO buffer, we'll - # get unicode out of it. - self.assertEqual(type(S0), str) - buf = StringIO() - print(S0, file=buf, end="") - s1 = buf.getvalue() - self.assertEqual(type(S0), type(s1)) - self.assertEqual(S0, s1) - self.assertEqual(type(s1), str) - - def test_002_bytes(self): - buf = StringIO() - print(S0_BYTES, file=buf, end="") - s1 = buf.getvalue() - - # In Python 3 StringIO *ALWAYS* returns str (=text=unicode) ! - # Even if we originally write bytes into the buffer, the value - # we get out of it has type str! - - # Input is bytes - self.assertEqual(type(S0_BYTES), bytes) - # Output is NOT bytes... - self.assertNotEqual(type(S0_BYTES), type(s1)) - self.assertNotEqual(type(s1), bytes) - # ...but str! - self.assertEqual(type(s1), str) - # So the contents are not equal! - self.assertNotEqual(S0_BYTES, s1) - # StringIO coerced bytes into str: - # b'xyz' ---> "b'xyz'" - self.assertEqual(str(S0_BYTES), s1) - # See, the type info is literally present in the output str! - self.assertEqual("b'" + str(S0_BYTES, encoding=ENCODING) + "'", s1) - # Coercion is NOT decoding! - self.assertNotEqual(S0_BYTES.decode(ENCODING), s1) - self.assertNotEqual(str(S0_BYTES, encoding=ENCODING), s1) - # These are the same - self.assertEqual(S0_BYTES.decode(ENCODING), - str(S0_BYTES, encoding=ENCODING)) - # Additional note: - # If we do not specify an encoding when we create a StringIO - # buffer, Python 3 automatically uses the locale's preferred - # encoding: locale.getpreferredencoding() - # Cf. http://docs.python.org/release/3.0.1/library/io.html#io.TextIOWrapper - # In my case this is the same encoding as the encoding of this source file, - # namely UTF-8. If on your system both encodings are different, you may - # encounter other results than the above. - # - # In Python 3.2 the signature of StringIO() has changed. It is no more - # possible to specify an encoding here. |