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Diffstat (limited to 'lib/python2.7/test/test_fileinput.py')
| -rw-r--r-- | lib/python2.7/test/test_fileinput.py | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/lib/python2.7/test/test_fileinput.py b/lib/python2.7/test/test_fileinput.py deleted file mode 100644 index 84aed1a..0000000 --- a/lib/python2.7/test/test_fileinput.py +++ /dev/null @@ -1,225 +0,0 @@ -''' -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.assertFalse(fi.isfirstline()) - self.assertFalse(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.assertFalse(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() |