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# -*- encoding: utf-8 -*-
class AppTestBuilders(object):
spaceconfig = dict(usemodules=['__pypy__'])
def test_simple(self):
from __pypy__.builders import StringBuilder
b = StringBuilder()
b.append(u"abcä")
b.append(u"123")
b.append(u"1")
s = b.build()
assert s == u"abcä1231"
assert b.build() == s
b.append(u"123")
assert b.build() == s + u"123"
def test_preallocate(self):
from __pypy__.builders import StringBuilder
b = StringBuilder(10)
b.append(u"abc")
b.append(u"123")
s = b.build()
assert s == u"abc123"
def test_append_slice(self):
from __pypy__.builders import StringBuilder
b = StringBuilder()
b.append_slice(u"abcdefgh", 2, 5)
raises(ValueError, b.append_slice, u"1", 2, 1)
s = b.build()
assert s == u"cde"
b.append_slice(u"abc", 1, 2)
assert b.build() == u"cdeb"
b.append_slice(b'\xc3\xa4\xc4\x83\xc3\xa7'.decode("utf-8"), 1, 2)
s = b.build()
assert s.encode("utf-8") == b"cdeb\xc4\x83"
def test_stringbuilder(self):
from __pypy__.builders import BytesBuilder
b = BytesBuilder()
b.append(b"abc")
b.append(b"123")
assert len(b) == 6
b.append(b"you and me")
s = b.build()
assert len(b) == 16
assert s == b"abc123you and me"
assert b.build() == s
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