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#!/usr/bin/python -u
# -*- coding: ISO-8859-1 -*-
#
# this tests the next API of the XmlTextReader interface
#
import libxml2
import sys
try:
    import StringIO
    str_io = StringIO.StringIO
except:
    import io
    str_io = io.StringIO

# Memory debug specific
libxml2.debugMemory(1)

f = str_io("""<a><b><c /></b><d>content of d</d></a>""")
input = libxml2.inputBuffer(f)
reader = input.newTextReader("test_next")
ret = reader.Read()
if ret != 1:
    print("test_next: Error reading to first element")
    sys.exit(1)
if reader.Name() != "a" or reader.IsEmptyElement() != 0 or \
   reader.NodeType() != 1 or reader.HasAttributes() != 0:
    print("test_next: Error reading the first element")
    sys.exit(1)
ret = reader.Read()
if ret != 1:
    print("test_next: Error reading to second element")
    sys.exit(1)
if reader.Name() != "b" or reader.IsEmptyElement() != 0 or \
   reader.NodeType() != 1 or reader.HasAttributes() != 0:
    print("test_next: Error reading the second element")
    sys.exit(1)
ret = reader.Read()
if ret != 1:
    print("test_next: Error reading to third element")
    sys.exit(1)
if reader.Name() != "c" or reader.NodeType() != 1 or \
   reader.HasAttributes() != 0:
    print("test_next: Error reading the third element")
    sys.exit(1)
ret = reader.Read()
if ret != 1:
    print("test_next: Error reading to end of third element")
    sys.exit(1)
if reader.Name() != "b" or reader.NodeType() != 15:
    print("test_next: Error reading to end of second element")
    sys.exit(1)
ret = reader.Next()
if ret != 1:
    print("test_next: Error moving to third element")
    sys.exit(1)
if reader.Name() != "d" or reader.IsEmptyElement() != 0 or \
   reader.NodeType() != 1 or reader.HasAttributes() != 0:
    print("test_next: Error reading third element")
    sys.exit(1)
ret = reader.Next()
if ret != 1:
    print("test_next: Error reading to end of first element")
    sys.exit(1)
if reader.Name() != "a" or reader.IsEmptyElement() != 0 or \
   reader.NodeType() != 15 or reader.HasAttributes() != 0:
    print("test_next: Error reading the end of first element")
    sys.exit(1)
ret = reader.Read()
if ret != 0:
    print("test_next: Error reading to end of document")
    sys.exit(1)

#
# cleanup for memory allocation counting
#
del f
del input
del reader

# Memory debug specific
libxml2.cleanupParser()
if libxml2.debugMemory(1) == 0:
    print("OK")
else:
    print("Memory leak %d bytes" % (libxml2.debugMemory(1)))
    libxml2.dumpMemory()

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