Added fast alternate io.BytesIO implementation and its test suite.

Removed old test suite for StringIO.
Modified truncate() to imply a seek to given argument value.

1 files changed, 0 insertions, 127 deletions

diff --git a/Lib/test/test_StringIO.py b/Lib/test/test_StringIO.py
deleted file mode 100644
index 4f3ce83..0000000
--- a/Lib/test/test_StringIO.py
+++ /dev/null
@@ -1,127 +0,0 @@
-# Tests StringIO and cStringIO
-
-import sys
-import unittest
-import io
-from test import test_support
-
-
-class TestGenericStringIO:
-    # use a class variable CLASS to define which class is being tested
-    CLASS = None
-
-    # 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.CLASS(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.CLASS()
-        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.CLASS()
-        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.CLASS()
-        self.assertRaises(KeyboardInterrupt, f.writelines, errorGen())
-
-    def test_truncate(self):
-        eq = self.assertEqual
-        f = self.CLASS()
-        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')
-        self.assertRaises(ValueError, f.truncate, -1)
-        f.close()
-        self.assertRaises(ValueError, f.write, 'frobnitz')
-
-    def test_closed_flag(self):
-        f = self.CLASS()
-        self.assertEqual(f.closed, False)
-        f.close()
-        self.assertEqual(f.closed, True)
-        f = self.CLASS(self.constructor("abc"))
-        self.assertEqual(f.closed, False)
-        f.close()
-        self.assertEqual(f.closed, True)
-
-    def test_isatty(self):
-        f = self.CLASS()
-        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(StopIteration, next, self._fp)
-
-class TestioStringIO(TestGenericStringIO, unittest.TestCase):
-    CLASS = io.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.CLASS()
-        f.write(self._line[:6])
-        f.seek(3)
-        f.write(str(self._line[20:26]))
-        f.write(str(self._line[52]))
-        s = f.getvalue()
-        self.assertEqual(s, str('abcuvwxyz!'))
-        self.assertEqual(type(s), str)
-
-
-def test_main():
-    test_support.run_unittest(TestioStringIO)
-
-
-if __name__ == '__main__':
-    test_main()