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from io import BytesIO
import os
import unittest
from fontTools.ttLib import TTFont
from fontTools.misc.textTools import strjoin
from fontTools.misc.xmlReader import XMLReader, ProgressPrinter, BUFSIZE
import tempfile
class TestXMLReader(unittest.TestCase):
def test_decode_utf8(self):
class DebugXMLReader(XMLReader):
def __init__(self, fileOrPath, ttFont, progress=None):
super(DebugXMLReader, self).__init__(
fileOrPath, ttFont, progress)
self.contents = []
def _endElementHandler(self, name):
if self.stackSize == 3:
name, attrs, content = self.root
self.contents.append(content)
super(DebugXMLReader, self)._endElementHandler(name)
expected = 'fôôbär'
data = '''\
<?xml version="1.0" encoding="UTF-8"?>
<ttFont>
<name>
<namerecord nameID="1" platformID="3" platEncID="1" langID="0x409">
%s
</namerecord>
</name>
</ttFont>
''' % expected
with BytesIO(data.encode('utf-8')) as tmp:
reader = DebugXMLReader(tmp, TTFont())
reader.read()
content = strjoin(reader.contents[0]).strip()
self.assertEqual(expected, content)
def test_normalise_newlines(self):
class DebugXMLReader(XMLReader):
def __init__(self, fileOrPath, ttFont, progress=None):
super(DebugXMLReader, self).__init__(
fileOrPath, ttFont, progress)
self.newlines = []
def _characterDataHandler(self, data):
self.newlines.extend([c for c in data if c in ('\r', '\n')])
# notice how when CR is escaped, it is not normalised by the XML parser
data = (
'<ttFont>\r' # \r -> \n
' <test>\r\n' # \r\n -> \n
' a line of text\n' # \n
' escaped CR and unix newline \n' # \n -> \r\n
' escaped CR and macintosh newline \r' # \r -> \r\n
' escaped CR and windows newline \r\n' # \r\n -> \r\n
' </test>\n' # \n
'</ttFont>')
with BytesIO(data.encode('utf-8')) as tmp:
reader = DebugXMLReader(tmp, TTFont())
reader.read()
expected = ['\n'] * 3 + ['\r', '\n'] * 3 + ['\n']
self.assertEqual(expected, reader.newlines)
def test_progress(self):
class DummyProgressPrinter(ProgressPrinter):
def __init__(self, title, maxval=100):
self.label = title
self.maxval = maxval
self.pos = 0
def set(self, val, maxval=None):
if maxval is not None:
self.maxval = maxval
self.pos = val
def increment(self, val=1):
self.pos += val
def setLabel(self, text):
self.label = text
data = (
'<ttFont>\n'
' <test>\n'
' %s\n'
' </test>\n'
'</ttFont>\n'
% ("z" * 2 * BUFSIZE)
).encode('utf-8')
dataSize = len(data)
progressBar = DummyProgressPrinter('test')
with BytesIO(data) as tmp:
reader = XMLReader(tmp, TTFont(), progress=progressBar)
self.assertEqual(progressBar.pos, 0)
reader.read()
self.assertEqual(progressBar.pos, dataSize // 100)
self.assertEqual(progressBar.maxval, dataSize // 100)
self.assertTrue('test' in progressBar.label)
with BytesIO(b"<ttFont></ttFont>") as tmp:
reader = XMLReader(tmp, TTFont(), progress=progressBar)
reader.read()
# when data size is less than 100 bytes, 'maxval' is 1
self.assertEqual(progressBar.maxval, 1)
def test_close_file_path(self):
with tempfile.NamedTemporaryFile(delete=False) as tmp:
tmp.write(b'<ttFont></ttFont>')
reader = XMLReader(tmp.name, TTFont())
reader.read()
# when reading from path, the file is closed automatically at the end
self.assertTrue(reader.file.closed)
# this does nothing
reader.close()
self.assertTrue(reader.file.closed)
os.remove(tmp.name)
def test_close_file_obj(self):
with tempfile.NamedTemporaryFile(delete=False) as tmp:
tmp.write(b'<ttFont>"hello"</ttFont>')
with open(tmp.name, "rb") as f:
reader = XMLReader(f, TTFont())
reader.read()
# when reading from a file or file-like object, the latter is kept open
self.assertFalse(reader.file.closed)
# ... until the user explicitly closes it
reader.close()
self.assertTrue(reader.file.closed)
os.remove(tmp.name)
def test_read_sub_file(self):
# Verifies that sub-file content is able to be read to a table.
expectedContent = 'testContent'
expectedNameID = '1'
expectedPlatform = '3'
expectedLangId = '0x409'
with tempfile.NamedTemporaryFile(delete=False) as tmp:
subFileData = (
'<ttFont ttLibVersion="3.15">'
'<name>'
'<namerecord nameID="%s" platformID="%s" platEncID="1" langID="%s">'
'%s'
'</namerecord>'
'</name>'
'</ttFont>'
) % (expectedNameID, expectedPlatform, expectedLangId, expectedContent)
tmp.write(subFileData.encode("utf-8"))
with tempfile.NamedTemporaryFile(delete=False) as tmp2:
fileData = (
'<ttFont ttLibVersion="3.15">'
'<name>'
'<namerecord src="%s"/>'
'</name>'
'</ttFont>'
) % tmp.name
tmp2.write(fileData.encode('utf-8'))
ttf = TTFont()
with open(tmp2.name, "rb") as f:
reader = XMLReader(f, ttf)
reader.read()
reader.close()
nameTable = ttf['name']
self.assertTrue(int(expectedNameID) == nameTable.names[0].nameID)
self.assertTrue(int(expectedLangId, 16) == nameTable.names[0].langID)
self.assertTrue(int(expectedPlatform) == nameTable.names[0].platformID)
self.assertEqual(expectedContent, nameTable.names[0].string.decode(nameTable.names[0].getEncoding()))
os.remove(tmp.name)
os.remove(tmp2.name)
if __name__ == '__main__':
import sys
sys.exit(unittest.main())
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