Test suite for universal newline support.
diff --git a/Lib/test/test_univnewlines.py b/Lib/test/test_univnewlines.py
new file mode 100644
index 0000000..e77797a
--- /dev/null
+++ b/Lib/test/test_univnewlines.py
@@ -0,0 +1,114 @@
+# Tests universal newline support for both reading and parsing files.
+import unittest
+import test_support
+import os
+import sys
+
+DATA_TEMPLATE=[
+ "line1=1",
+ "line2='this is a very long line designed to go past the magic " +
+ "hundred character limit that is inside fileobject.c and which " +
+ "is meant to speed up the common case, but we also want to test " +
+ "the uncommon case, naturally.'",
+ "def line3():pass"
+ ]
+DATA_LF = "\n".join(DATA_TEMPLATE) + "\n"
+DATA_CR = "\r".join(DATA_TEMPLATE) + "\r"
+DATA_CRLF = "\r\n".join(DATA_TEMPLATE) + "\r\n"
+# Note that DATA_MIXED also tests the ability to recognize a lone \r
+# before end-of-file.
+DATA_MIXED = "\n".join(DATA_TEMPLATE) + "\r"
+DATA_SPLIT = map(lambda x: x+"\n", DATA_TEMPLATE)
+
+if not hasattr(sys.stdin, 'newlines'):
+ raise test_support.TestSkipped, \
+ "This Python does not have universal newline support"
+
+class TestGenericUnivNewlines(unittest.TestCase):
+ # use a class variable DATA to define the data to write to the file
+ # and a class variable NEWLINE to set the expected newlines value
+ READMODE = 'U'
+ WRITEMODE = 'wb'
+
+ def setUp(self):
+ fp = open(test_support.TESTFN, self.WRITEMODE)
+ fp.write(self.DATA)
+ fp.close()
+
+ def tearDown(self):
+ try:
+ os.unlink(test_support.TESTFN)
+ except:
+ pass
+
+ def test_read(self):
+ fp = open(test_support.TESTFN, self.READMODE)
+ data = fp.read()
+ self.assertEqual(data, DATA_LF)
+ self.assertEqual(`fp.newlines`, `self.NEWLINE`)
+
+ def test_readlines(self):
+ fp = open(test_support.TESTFN, self.READMODE)
+ data = fp.readlines()
+ self.assertEqual(data, DATA_SPLIT)
+ self.assertEqual(`fp.newlines`, `self.NEWLINE`)
+
+ def test_readline(self):
+ fp = open(test_support.TESTFN, self.READMODE)
+ data = []
+ d = fp.readline()
+ while d:
+ data.append(d)
+ d = fp.readline()
+ self.assertEqual(data, DATA_SPLIT)
+ self.assertEqual(`fp.newlines`, `self.NEWLINE`)
+
+ def test_seek(self):
+ fp = open(test_support.TESTFN, self.READMODE)
+ fp.readline()
+ pos = fp.tell()
+ data = fp.readlines()
+ self.assertEqual(data, DATA_SPLIT[1:])
+ fp.seek(pos)
+ data = fp.readlines()
+ self.assertEqual(data, DATA_SPLIT[1:])
+
+ def test_execfile(self):
+ dict = {}
+ execfile(test_support.TESTFN, dict)
+ func = dict['line3']
+ self.assertEqual(func.func_code.co_firstlineno, 3)
+
+
+class TestNativeNewlines(TestGenericUnivNewlines):
+ NEWLINE=None
+ DATA=DATA_LF
+ READMODE='r'
+ WRITEMODE='w'
+
+class TestCRNewlines(TestGenericUnivNewlines):
+ NEWLINE='\r'
+ DATA=DATA_CR
+
+class TestLFNewlines(TestGenericUnivNewlines):
+ NEWLINE='\n'
+ DATA=DATA_LF
+
+class TestCRLFNewlines(TestGenericUnivNewlines):
+ NEWLINE='\r\n'
+ DATA=DATA_CRLF
+
+class TestMixedNewlines(TestGenericUnivNewlines):
+ NEWLINE=('\r', '\n')
+ DATA=DATA_MIXED
+
+
+def test_main():
+ test_support.run_unittest(TestNativeNewlines)
+ test_support.run_unittest(TestCRNewlines)
+ test_support.run_unittest(TestLFNewlines)
+ test_support.run_unittest(TestCRLFNewlines)
+ test_support.run_unittest(TestMixedNewlines)
+
+if __name__ == '__main__':
+ test_main()