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from pypy.module.cpyext.test.test_cpyext import AppTestCpythonExtensionBase
class AppTestStringObject(AppTestCpythonExtensionBase):
def test_basic(self):
module = self.import_extension('foo', [
("get_hello1", "METH_NOARGS",
"""
return PyByteArray_FromStringAndSize(
"Hello world<should not be included>", 11);
"""),
("get_hello2", "METH_NOARGS",
"""
return PyByteArray_FromStringAndSize("Hello world", 12);
"""),
("test_Size", "METH_NOARGS",
"""
PyObject* s = PyByteArray_FromStringAndSize("Hello world", 12);
int result = 0;
if(PyByteArray_Size(s) == 12) {
result = 1;
}
Py_DECREF(s);
return PyBool_FromLong(result);
"""),
("test_is_bytearray", "METH_VARARGS",
"""
return PyBool_FromLong(PyByteArray_Check(PyTuple_GetItem(args, 0)));
""")], prologue='#include <stdlib.h>')
assert module.get_hello1() == b'Hello world'
assert module.get_hello2() == b'Hello world\x00'
assert module.test_Size()
assert module.test_is_bytearray(bytearray(b""))
assert not module.test_is_bytearray(())
def test_bytearray_buffer_init(self):
module = self.import_extension('foo', [
("getbytearray", "METH_NOARGS",
"""
PyObject *s, *t;
char* c;
s = PyByteArray_FromStringAndSize(NULL, 4);
if (s == NULL)
return NULL;
t = PyByteArray_FromStringAndSize(NULL, 3);
if (t == NULL)
return NULL;
Py_DECREF(t);
c = PyByteArray_AsString(s);
if (c == NULL)
{
PyErr_SetString(PyExc_ValueError, "non-null bytearray object expected");
return NULL;
}
c[0] = 'a';
c[1] = 'b';
c[2] = 0;
c[3] = 'c';
return s;
"""),
])
s = module.getbytearray()
assert len(s) == 4
assert s == b'ab\x00c'
def test_bytearray_mutable(self):
module = self.import_extension('foo', [
("mutable", "METH_NOARGS",
"""
PyObject *base;
base = PyByteArray_FromStringAndSize("test", 10);
if (PyByteArray_GET_SIZE(base) != 10)
return PyLong_FromLong(-PyByteArray_GET_SIZE(base));
memcpy(PyByteArray_AS_STRING(base), "works", 6);
Py_INCREF(base);
return base;
"""),
])
s = module.mutable()
if s == b'\x00' * 10:
assert False, "no RW access to bytearray"
assert s[:6] == b'works\x00'
def test_AsByteArray(self):
module = self.import_extension('foo', [
("getbytearray", "METH_NOARGS",
"""
const char *c;
PyObject *s2, *s1 = PyByteArray_FromStringAndSize("test", 4);
if (s1 == NULL)
return NULL;
c = PyByteArray_AsString(s1);
s2 = PyByteArray_FromStringAndSize(c, 4);
Py_DECREF(s1);
return s2;
"""),
])
s = module.getbytearray()
assert s == b'test'
def test_manipulations(self):
import sys
module = self.import_extension('foo', [
("bytearray_from_bytes", "METH_VARARGS",
'''
return PyByteArray_FromStringAndSize(PyBytes_AsString(
PyTuple_GetItem(args, 0)), 4);
'''
),
("bytes_from_bytearray", "METH_VARARGS",
'''
char * buf;
int n;
PyObject * obj;
obj = PyTuple_GetItem(args, 0);
buf = PyByteArray_AsString(obj);
if (buf == NULL)
{
PyErr_SetString(PyExc_ValueError, "non-null bytearray object expected");
return NULL;
}
n = PyByteArray_Size(obj);
return PyBytes_FromStringAndSize(buf, n);
'''
),
("concat", "METH_VARARGS",
"""
PyObject * ret, *right, *left;
PyObject *ba1, *ba2;
if (!PyArg_ParseTuple(args, "OO", &left, &right)) {
return PyUnicode_FromString("parse failed");
}
ba1 = PyByteArray_FromObject(left);
ba2 = PyByteArray_FromObject(right);
if (ba1 == NULL || ba2 == NULL)
{
/* exception should be set */
return NULL;
}
ret = PyByteArray_Concat(ba1, ba2);
return ret;
""")])
assert module.bytearray_from_bytes(b"huheduwe") == b"huhe"
assert module.bytes_from_bytearray(bytearray(b'abc')) == b'abc'
if '__pypy__' in sys.builtin_module_names:
# CPython only makes an assert.
raises(ValueError, module.bytes_from_bytearray, 4.0)
ret = module.concat(b'abc', b'def')
assert ret == b'abcdef'
assert not isinstance(ret, str)
assert isinstance(ret, bytearray)
raises(TypeError, module.concat, b'abc', u'def')
def test_bytearray_resize(self):
module = self.import_extension('foo', [
("bytearray_resize", "METH_VARARGS",
'''
PyObject *obj, *ba;
int newsize, oldsize, ret;
if (!PyArg_ParseTuple(args, "Oi", &obj, &newsize)) {
return PyUnicode_FromString("parse failed");
}
ba = PyByteArray_FromObject(obj);
if (ba == NULL)
return NULL;
oldsize = PyByteArray_Size(ba);
if (oldsize == 0)
{
return PyUnicode_FromString("oldsize is 0");
}
ret = PyByteArray_Resize(ba, newsize);
if (ret != 0)
{
printf("ret, oldsize, newsize= %d, %d, %d\\n", ret, oldsize, newsize);
return NULL;
}
return ba;
'''
)])
ret = module.bytearray_resize(b'abc', 6)
assert len(ret) == 6,"%s, len=%d" % (ret, len(ret))
assert ret[:4] == b'abc\x00'
ret = module.bytearray_resize(b'abcdefghi', 4)
assert len(ret) == 4,"%s, len=%d" % (ret, len(ret))
assert ret == b'abcd'
|
