--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/python-2.5.2/win32/Lib/test/test_fileinput.py Fri Apr 03 17:19:34 2009 +0100
@@ -0,0 +1,227 @@
+'''
+Tests for fileinput module.
+Nick Mathewson
+'''
+
+from test.test_support import verify, verbose, TESTFN, TestFailed
+import sys, os, 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
+
+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)
+
+if verbose:
+ print "15. Unicode filenames"
+try:
+ t1 = writeTmp(1, ["A\nB"])
+ encoding = sys.getfilesystemencoding()
+ if encoding is None:
+ encoding = 'ascii'
+ fi = FileInput(files=unicode(t1, encoding))
+ lines = list(fi)
+ verify(lines == ["A\n", "B"])
+finally:
+ remove_tempfiles(t1)
+
+if verbose:
+ print "16. fileno()"
+try:
+ t1 = writeTmp(1, ["A\nB"])
+ t2 = writeTmp(2, ["C\nD"])
+ fi = FileInput(files=(t1, t2))
+ verify(fi.fileno() == -1)
+ line = fi.next()
+ verify(fi.fileno() != -1)
+ fi.nextfile()
+ verify(fi.fileno() == -1)
+ line = list(fi)
+ verify(fi.fileno() == -1)
+finally:
+ remove_tempfiles(t1, t2)
+
+if verbose:
+ print "17. Specify opening mode"
+try:
+ # invalid mode, should raise ValueError
+ fi = FileInput(mode="w")
+ raise TestFailed("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)
+ verify(lines == ["A\n", "B\n", "C\n", "D"])
+finally:
+ remove_tempfiles(t1)
+
+if verbose:
+ print "18. Test file opening hook"
+try:
+ # cannot use openhook and inplace mode
+ fi = FileInput(inplace=1, openhook=lambda f,m: None)
+ raise TestFailed("FileInput should raise if both inplace "
+ "and openhook arguments are given")
+except ValueError:
+ pass
+try:
+ fi = FileInput(openhook=1)
+ raise TestFailed("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)
+ verify(lines == ["N\n", "O"])
+finally:
+ remove_tempfiles(t1)