diff options
author | cinap_lenrek <cinap_lenrek@localhost> | 2011-05-03 11:25:13 +0000 |
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committer | cinap_lenrek <cinap_lenrek@localhost> | 2011-05-03 11:25:13 +0000 |
commit | 458120dd40db6b4df55a4e96b650e16798ef06a0 (patch) | |
tree | 8f82685be24fef97e715c6f5ca4c68d34d5074ee /sys/lib/python/test/test_StringIO.py | |
parent | 3a742c699f6806c1145aea5149bf15de15a0afd7 (diff) |
add hg and python
Diffstat (limited to 'sys/lib/python/test/test_StringIO.py')
-rw-r--r-- | sys/lib/python/test/test_StringIO.py | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/sys/lib/python/test/test_StringIO.py b/sys/lib/python/test/test_StringIO.py new file mode 100644 index 000000000..aa36b0984 --- /dev/null +++ b/sys/lib/python/test/test_StringIO.py @@ -0,0 +1,167 @@ +# Tests StringIO and cStringIO + +import unittest +import StringIO +import cStringIO +import types +from test import test_support + + +class TestGenericStringIO(unittest.TestCase): + # use a class variable MODULE to define which module is being tested + + # Line of data to test as string + _line = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!' + + # Constructor to use for the test data (._line is passed to this + # constructor) + constructor = str + + def setUp(self): + self._line = self.constructor(self._line) + self._lines = self.constructor((self._line + '\n') * 5) + self._fp = self.MODULE.StringIO(self._lines) + + def test_reads(self): + eq = self.assertEqual + self.assertRaises(TypeError, self._fp.seek) + eq(self._fp.read(10), self._line[:10]) + eq(self._fp.readline(), self._line[10:] + '\n') + eq(len(self._fp.readlines(60)), 2) + + def test_writes(self): + f = self.MODULE.StringIO() + self.assertRaises(TypeError, f.seek) + f.write(self._line[:6]) + f.seek(3) + f.write(self._line[20:26]) + f.write(self._line[52]) + self.assertEqual(f.getvalue(), 'abcuvwxyz!') + + def test_writelines(self): + f = self.MODULE.StringIO() + f.writelines([self._line[0], self._line[1], self._line[2]]) + f.seek(0) + self.assertEqual(f.getvalue(), 'abc') + + def test_writelines_error(self): + def errorGen(): + yield 'a' + raise KeyboardInterrupt() + f = self.MODULE.StringIO() + self.assertRaises(KeyboardInterrupt, f.writelines, errorGen()) + + def test_truncate(self): + eq = self.assertEqual + f = self.MODULE.StringIO() + f.write(self._lines) + f.seek(10) + f.truncate() + eq(f.getvalue(), 'abcdefghij') + f.truncate(5) + eq(f.getvalue(), 'abcde') + f.write('xyz') + eq(f.getvalue(), 'abcdexyz') + f.close() + self.assertRaises(ValueError, f.write, 'frobnitz') + + def test_closed_flag(self): + f = self.MODULE.StringIO() + self.assertEqual(f.closed, False) + f.close() + self.assertEqual(f.closed, True) + f = self.MODULE.StringIO("abc") + self.assertEqual(f.closed, False) + f.close() + self.assertEqual(f.closed, True) + + def test_isatty(self): + f = self.MODULE.StringIO() + self.assertRaises(TypeError, f.isatty, None) + self.assertEqual(f.isatty(), False) + f.close() + self.assertRaises(ValueError, f.isatty) + + def test_iterator(self): + eq = self.assertEqual + unless = self.failUnless + eq(iter(self._fp), self._fp) + # Does this object support the iteration protocol? + unless(hasattr(self._fp, '__iter__')) + unless(hasattr(self._fp, 'next')) + i = 0 + for line in self._fp: + eq(line, self._line + '\n') + i += 1 + eq(i, 5) + self._fp.close() + self.assertRaises(ValueError, self._fp.next) + +class TestStringIO(TestGenericStringIO): + MODULE = StringIO + + def test_unicode(self): + + if not test_support.have_unicode: return + + # The StringIO module also supports concatenating Unicode + # snippets to larger Unicode strings. This is tested by this + # method. Note that cStringIO does not support this extension. + + f = self.MODULE.StringIO() + f.write(self._line[:6]) + f.seek(3) + f.write(unicode(self._line[20:26])) + f.write(unicode(self._line[52])) + s = f.getvalue() + self.assertEqual(s, unicode('abcuvwxyz!')) + self.assertEqual(type(s), types.UnicodeType) + +class TestcStringIO(TestGenericStringIO): + MODULE = cStringIO + + def test_unicode(self): + + if not test_support.have_unicode: return + + # The cStringIO module converts Unicode strings to character + # strings when writing them to cStringIO objects. + # Check that this works. + + f = self.MODULE.StringIO() + f.write(unicode(self._line[:5])) + s = f.getvalue() + self.assertEqual(s, 'abcde') + self.assertEqual(type(s), types.StringType) + + f = self.MODULE.StringIO(unicode(self._line[:5])) + s = f.getvalue() + self.assertEqual(s, 'abcde') + self.assertEqual(type(s), types.StringType) + + self.assertRaises(UnicodeEncodeError, self.MODULE.StringIO, + unicode('\xf4', 'latin-1')) + +import sys +if sys.platform.startswith('java'): + # Jython doesn't have a buffer object, so we just do a useless + # fake of the buffer tests. + buffer = str + +class TestBufferStringIO(TestStringIO): + constructor = buffer + +class TestBuffercStringIO(TestcStringIO): + constructor = buffer + + +def test_main(): + test_support.run_unittest( + TestStringIO, + TestcStringIO, + TestBufferStringIO, + TestBuffercStringIO + ) + +if __name__ == '__main__': + test_main() |