--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Lib/test/test_fileinput.py Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,225 @@
+'''
+Tests for fileinput module.
+Nick Mathewson
+'''
+
+import unittest
+from test.test_support import verbose, TESTFN, run_unittest
+from test.test_support import unlink as safe_unlink
+import sys, re
+from StringIO import StringIO
+from fileinput import FileInput, hook_encoded
+
+# The fileinput module has 2 interfaces: the FileInput class which does
+# all the work, and a few functions (input, etc.) that use a global _state
+# variable. We only test the FileInput class, since the other functions
+# only provide a thin facade over FileInput.
+
+# Write lines (a list of lines) to temp file number i, and return the
+# temp file's name.
+def writeTmp(i, lines, mode='w'): # opening in text mode is the default
+ name = TESTFN + str(i)
+ f = open(name, mode)
+ f.writelines(lines)
+ f.close()
+ return name
+
+def remove_tempfiles(*names):
+ for name in names:
+ safe_unlink(name)
+
+class BufferSizesTests(unittest.TestCase):
+ def test_buffer_sizes(self):
+ # First, run the tests with default and teeny buffer size.
+ for round, bs in (0, 0), (1, 30):
+ try:
+ t1 = writeTmp(1, ["Line %s of file 1\n" % (i+1) for i in range(15)])
+ t2 = writeTmp(2, ["Line %s of file 2\n" % (i+1) for i in range(10)])
+ t3 = writeTmp(3, ["Line %s of file 3\n" % (i+1) for i in range(5)])
+ t4 = writeTmp(4, ["Line %s of file 4\n" % (i+1) for i in range(1)])
+ self.buffer_size_test(t1, t2, t3, t4, bs, round)
+ finally:
+ remove_tempfiles(t1, t2, t3, t4)
+
+ def buffer_size_test(self, t1, t2, t3, t4, bs=0, round=0):
+ pat = re.compile(r'LINE (\d+) OF FILE (\d+)')
+
+ start = 1 + round*6
+ if verbose:
+ print '%s. Simple iteration (bs=%s)' % (start+0, bs)
+ fi = FileInput(files=(t1, t2, t3, t4), bufsize=bs)
+ lines = list(fi)
+ fi.close()
+ self.assertEqual(len(lines), 31)
+ self.assertEqual(lines[4], 'Line 5 of file 1\n')
+ self.assertEqual(lines[30], 'Line 1 of file 4\n')
+ self.assertEqual(fi.lineno(), 31)
+ self.assertEqual(fi.filename(), t4)
+
+ if verbose:
+ print '%s. Status variables (bs=%s)' % (start+1, bs)
+ fi = FileInput(files=(t1, t2, t3, t4), bufsize=bs)
+ s = "x"
+ while s and s != 'Line 6 of file 2\n':
+ s = fi.readline()
+ self.assertEqual(fi.filename(), t2)
+ self.assertEqual(fi.lineno(), 21)
+ self.assertEqual(fi.filelineno(), 6)
+ self.failIf(fi.isfirstline())
+ self.failIf(fi.isstdin())
+
+ if verbose:
+ print '%s. Nextfile (bs=%s)' % (start+2, bs)
+ fi.nextfile()
+ self.assertEqual(fi.readline(), 'Line 1 of file 3\n')
+ self.assertEqual(fi.lineno(), 22)
+ fi.close()
+
+ if verbose:
+ print '%s. Stdin (bs=%s)' % (start+3, bs)
+ fi = FileInput(files=(t1, t2, t3, t4, '-'), bufsize=bs)
+ savestdin = sys.stdin
+ try:
+ sys.stdin = StringIO("Line 1 of stdin\nLine 2 of stdin\n")
+ lines = list(fi)
+ self.assertEqual(len(lines), 33)
+ self.assertEqual(lines[32], 'Line 2 of stdin\n')
+ self.assertEqual(fi.filename(), '<stdin>')
+ fi.nextfile()
+ finally:
+ sys.stdin = savestdin
+
+ if verbose:
+ print '%s. Boundary conditions (bs=%s)' % (start+4, bs)
+ fi = FileInput(files=(t1, t2, t3, t4), bufsize=bs)
+ self.assertEqual(fi.lineno(), 0)
+ self.assertEqual(fi.filename(), None)
+ fi.nextfile()
+ self.assertEqual(fi.lineno(), 0)
+ self.assertEqual(fi.filename(), None)
+
+ if verbose:
+ print '%s. Inplace (bs=%s)' % (start+5, bs)
+ savestdout = sys.stdout
+ try:
+ fi = FileInput(files=(t1, t2, t3, t4), inplace=1, bufsize=bs)
+ for line in fi:
+ line = line[:-1].upper()
+ print line
+ fi.close()
+ finally:
+ sys.stdout = savestdout
+
+ fi = FileInput(files=(t1, t2, t3, t4), bufsize=bs)
+ for line in fi:
+ self.assertEqual(line[-1], '\n')
+ m = pat.match(line[:-1])
+ self.assertNotEqual(m, None)
+ self.assertEqual(int(m.group(1)), fi.filelineno())
+ fi.close()
+
+class FileInputTests(unittest.TestCase):
+ def test_zero_byte_files(self):
+ try:
+ t1 = writeTmp(1, [""])
+ t2 = writeTmp(2, [""])
+ t3 = writeTmp(3, ["The only line there is.\n"])
+ t4 = writeTmp(4, [""])
+ fi = FileInput(files=(t1, t2, t3, t4))
+
+ line = fi.readline()
+ self.assertEqual(line, 'The only line there is.\n')
+ self.assertEqual(fi.lineno(), 1)
+ self.assertEqual(fi.filelineno(), 1)
+ self.assertEqual(fi.filename(), t3)
+
+ line = fi.readline()
+ self.failIf(line)
+ self.assertEqual(fi.lineno(), 1)
+ self.assertEqual(fi.filelineno(), 0)
+ self.assertEqual(fi.filename(), t4)
+ fi.close()
+ finally:
+ remove_tempfiles(t1, t2, t3, t4)
+
+ def test_files_that_dont_end_with_newline(self):
+ try:
+ t1 = writeTmp(1, ["A\nB\nC"])
+ t2 = writeTmp(2, ["D\nE\nF"])
+ fi = FileInput(files=(t1, t2))
+ lines = list(fi)
+ self.assertEqual(lines, ["A\n", "B\n", "C", "D\n", "E\n", "F"])
+ self.assertEqual(fi.filelineno(), 3)
+ self.assertEqual(fi.lineno(), 6)
+ finally:
+ remove_tempfiles(t1, t2)
+
+ def test_unicode_filenames(self):
+ try:
+ t1 = writeTmp(1, ["A\nB"])
+ encoding = sys.getfilesystemencoding()
+ if encoding is None:
+ encoding = 'ascii'
+ fi = FileInput(files=unicode(t1, encoding))
+ lines = list(fi)
+ self.assertEqual(lines, ["A\n", "B"])
+ finally:
+ remove_tempfiles(t1)
+
+ def test_fileno(self):
+ try:
+ t1 = writeTmp(1, ["A\nB"])
+ t2 = writeTmp(2, ["C\nD"])
+ fi = FileInput(files=(t1, t2))
+ self.assertEqual(fi.fileno(), -1)
+ line = fi.next()
+ self.assertNotEqual(fi.fileno(), -1)
+ fi.nextfile()
+ self.assertEqual(fi.fileno(), -1)
+ line = list(fi)
+ self.assertEqual(fi.fileno(), -1)
+ finally:
+ remove_tempfiles(t1, t2)
+
+ def test_opening_mode(self):
+ try:
+ # invalid mode, should raise ValueError
+ fi = FileInput(mode="w")
+ self.fail("FileInput should reject invalid mode argument")
+ except ValueError:
+ pass
+ try:
+ # try opening in universal newline mode
+ t1 = writeTmp(1, ["A\nB\r\nC\rD"], mode="wb")
+ fi = FileInput(files=t1, mode="U")
+ lines = list(fi)
+ self.assertEqual(lines, ["A\n", "B\n", "C\n", "D"])
+ finally:
+ remove_tempfiles(t1)
+
+ def test_file_opening_hook(self):
+ try:
+ # cannot use openhook and inplace mode
+ fi = FileInput(inplace=1, openhook=lambda f,m: None)
+ self.fail("FileInput should raise if both inplace "
+ "and openhook arguments are given")
+ except ValueError:
+ pass
+ try:
+ fi = FileInput(openhook=1)
+ self.fail("FileInput should check openhook for being callable")
+ except ValueError:
+ pass
+ try:
+ t1 = writeTmp(1, ["A\nB"], mode="wb")
+ fi = FileInput(files=t1, openhook=hook_encoded("rot13"))
+ lines = list(fi)
+ self.assertEqual(lines, ["N\n", "O"])
+ finally:
+ remove_tempfiles(t1)
+
+def test_main():
+ run_unittest(BufferSizesTests, FileInputTests)
+
+if __name__ == "__main__":
+ test_main()