[Python-checkins] CVS: python/dist/src/Lib/test test_fileinput.py,NONE,1.1 test_sundry.py,1.5,1.6

2001年7月11日 15:21:19 -0700

Update of /cvsroot/python/python/dist/src/Lib/test
In directory usw-pr-cvs1:/tmp/cvs-serv14522/python/dist/src/lib/test
Modified Files:
	test_sundry.py 
Added Files:
	test_fileinput.py 
Log Message:
SF patch #440170: Tests for fileinput module.
New test_fileinput.py from Nick Mathewson, fiddled to use TESTFN and sundry
style nits.
--- NEW FILE: test_fileinput.py ---
'''
Tests for fileinput module.
Nick Mathewson
'''
from test_support import verify, verbose, TESTFN
import sys, os, re
from StringIO import StringIO
from fileinput import FileInput
# 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):
 name = TESTFN + str(i)
 f = open(name, 'w')
 f.writelines(lines)
 f.close()
 return name
pat = re.compile(r'LINE (\d+) OF FILE (\d+)')
def remove_tempfiles(*names):
 for name in names:
 try:
 os.unlink(name)
 except:
 pass
def runTests(t1, t2, t3, t4, bs=0, round=0):
 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()
 verify(len(lines) == 31)
 verify(lines[4] == 'Line 5 of file 1\n')
 verify(lines[30] == 'Line 1 of file 4\n')
 verify(fi.lineno() == 31)
 verify(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()
 verify(fi.filename() == t2)
 verify(fi.lineno() == 21)
 verify(fi.filelineno() == 6)
 verify(not fi.isfirstline())
 verify(not fi.isstdin())
 if verbose:
 print '%s. Nextfile (bs=%s)' % (start+2, bs)
 fi.nextfile()
 verify(fi.readline() == 'Line 1 of file 3\n')
 verify(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)
 verify(len(lines) == 33)
 verify(lines[32] == 'Line 2 of stdin\n')
 verify(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)
 verify(fi.lineno() == 0)
 verify(fi.filename() == None)
 fi.nextfile()
 verify(fi.lineno() == 0)
 verify(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:
 verify(line[-1] == '\n')
 m = pat.match(line[:-1])
 verify(m != None)
 verify(int(m.group(1)) == fi.filelineno())
 fi.close()
def writeFiles():
 global t1, t2, t3, t4
 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)])
# First, run the tests with default and teeny buffer size.
for round, bs in (0, 0), (1, 30):
 try:
 writeFiles()
 runTests(t1, t2, t3, t4, bs, round)
 finally:
 remove_tempfiles(t1, t2, t3, t4)
# Next, check for proper behavior with 0-byte files.
if verbose:
 print "13. 0-byte files"
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()
 verify(line == 'The only line there is.\n')
 verify(fi.lineno() == 1)
 verify(fi.filelineno() == 1)
 verify(fi.filename() == t3)
 line = fi.readline()
 verify(not line)
 verify(fi.lineno() == 1)
 verify(fi.filelineno() == 0)
 verify(fi.filename() == t4)
 fi.close()
finally:
 remove_tempfiles(t1, t2, t3, t4)
if verbose:
 print "14. Files that don't end with newline"
try:
 t1 = writeTmp(1, ["A\nB\nC"])
 t2 = writeTmp(2, ["D\nE\nF"])
 fi = FileInput(files=(t1, t2))
 lines = list(fi)
 verify(lines == ["A\n", "B\n", "C", "D\n", "E\n", "F"])
 verify(fi.filelineno() == 3)
 verify(fi.lineno() == 6)
finally:
 remove_tempfiles(t1, t2)
Index: test_sundry.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/test/test_sundry.py,v
retrieving revision 1.5
retrieving revision 1.6
diff -C2 -r1.5 -r1.6
*** test_sundry.py	2001年07月11日 21:43:42	1.5
--- test_sundry.py	2001年07月11日 22:21:17	1.6
***************
*** 31,35 ****
 import encodings
 import filecmp
- import fileinput
 import fnmatch
 import formatter
--- 31,34 ----