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import sys
import os
import unittest
import tempfile
try:
from cStringIO import StringIO
except ImportError:
from StringIO import StringIO
import ctypes
from ctypes.util import find_library
from ctypeslib import h2xml
from ctypeslib.codegen.codegenerator import generate_code
def mktemp(suffix):
handle, fnm = tempfile.mkstemp(suffix)
os.close(handle)
return fnm
class ADict(dict):
def __getattr__(self, name):
try:
return self[name]
except KeyError:
raise AttributeError(name)
class ConstantsTest(unittest.TestCase):
def convert(self, defs, flags=None, dump=False, **kw):
hfile = mktemp(".h")
open(hfile, "w").write(defs)
xmlfile = mktemp(".xml")
try:
if flags:
h2xml.main(["h2xml", "-q", "-I.", hfile, "-o", xmlfile, flags])
else:
h2xml.main(["h2xml", "-q", "-I.", hfile, "-o", xmlfile])
ofi = StringIO()
generate_code(xmlfile, ofi, **kw)
namespace = {}
exec ofi.getvalue() in namespace
## print ofi.getvalue()
return ADict(namespace)
finally:
os.unlink(hfile)
if dump:
print open(xmlfile).read()
os.unlink(xmlfile)
def test_longlong(self):
ns = self.convert("""
long long int i1 = 0x7FFFFFFFFFFFFFFFLL;
long long int i2 = -1;
unsigned long long ui3 = 0xFFFFFFFFFFFFFFFFULL;
unsigned long long ui2 = 0x8000000000000000ULL;
unsigned long long ui1 = 0x7FFFFFFFFFFFFFFFULL;
""")
self.failUnlessEqual(ns.i1, 0x7FFFFFFFFFFFFFFF)
self.failUnlessEqual(ns.i2, -1)
self.failUnlessEqual(ns.ui1, 0x7FFFFFFFFFFFFFFF)
# These two tests fail on 64-bit Linux! gccxml bug, I assume...
self.failUnlessEqual(ns.ui3, 0xFFFFFFFFFFFFFFFF)
self.failUnlessEqual(ns.ui2, 0x8000000000000000)
def test_int(self):
ns = self.convert("""
int zero = 0;
int one = 1;
int minusone = -1;
int maxint = 2147483647;
int minint = -2147483648;
""")
self.failUnlessEqual(ns.zero, 0)
self.failUnlessEqual(ns.one, 1)
self.failUnlessEqual(ns.minusone, -1)
self.failUnlessEqual(ns.maxint, 2147483647)
self.failUnlessEqual(ns.minint, -2147483648)
def test_uint(self):
ns = self.convert("""
unsigned int zero = 0;
unsigned int one = 1;
unsigned int minusone = -1;
unsigned int maxuint = 0xFFFFFFFF;
""")
self.failUnlessEqual(ns.zero, 0)
self.failUnlessEqual(ns.one, 1)
self.failUnlessEqual(ns.minusone, 4294967295)
self.failUnlessEqual(ns.maxuint, 0xFFFFFFFF)
def test_doubles(self):
ns = self.convert("""
#define A 0.9642
#define B 1.0
#define C 0.8249
double d = 0.0036;
float f = 2.5;
""", "-c")
self.failUnlessAlmostEqual(ns.A, 0.9642)
self.failUnlessAlmostEqual(ns.B, 1.0)
self.failUnlessAlmostEqual(ns.C, 0.8249)
self.failUnlessAlmostEqual(ns.d, 0.0036)
self.failUnlessAlmostEqual(ns.f, 2.5)
def test_char(self):
ns = self.convert("""
char x = 'x';
wchar_t X = L'X';
char zero = 0;
wchar_t w_zero = 0;
""")
self.failUnlessEqual(ns.x, 'x')
self.failUnlessEqual(ns.X, 'X')
self.failUnlessEqual(type(ns.x), str)
self.failUnlessEqual(type(ns.X), unicode)
self.failUnlessEqual(ns.zero, '\0')
self.failUnlessEqual(ns.w_zero, '\0')
self.failUnlessEqual(type(ns.zero), str)
self.failUnlessEqual(type(ns.w_zero), unicode)
def test_defines(self):
ns = self.convert("""
#define zero 0
#define one 1
#define minusone -1
#define maxint 2147483647
#define minint -2147483648
#define spam "spam"
#define foo L"foo"
#define LARGE 0xFFFFFFFF
#ifdef _MSC_VER
# define VERYLARGE 0xFFFFFFFFFFFFFFFFui64
#endif
""", "-c")
self.failUnlessEqual(ns.zero, 0)
self.failUnlessEqual(ns.one, 1)
self.failUnlessEqual(ns.minusone, -1)
self.failUnlessEqual(ns.maxint, 2147483647)
self.failUnlessEqual(ns.LARGE, 0xFFFFFFFF)
## self.failUnlessEqual(ns.VERYLARGE, 0xFFFFFFFFFFFFFFFF)
## self.failUnlessEqual(ns.minint, -2147483648)
self.failUnlessEqual(ns.spam, "spam")
self.failUnlessEqual(type(ns.spam), str)
self.failUnlessEqual(ns.foo, "foo")
self.failUnlessEqual(type(ns.foo), unicode)
def test_array_nosize(self):
ns = self.convert("""
typedef char array[];
struct blah {
char varsize[];
};
""", "-c")
# for 'typedef char array[];', gccxml does XXX
self.failUnlessEqual(ctypes.sizeof(ns.blah), 0)
self.failUnlessEqual(ctypes.sizeof(ns.array), 0)
def test_docstring(self):
from ctypes import CDLL
from ctypes.util import find_library
if os.name == "nt":
libc = CDLL("msvcrt")
else:
libc = CDLL(find_library("c"))
ns = self.convert("""
#include <malloc.h>
""",
generate_docstrings=True,
searched_dlls=[libc]
)
prototype = "void * malloc(size_t".replace(" ", "")
docstring = ns.malloc.__doc__.replace(" ", "")
self.failUnlessEqual(docstring[:len(prototype)], prototype)
self.failUnless("malloc.h" in ns.malloc.__doc__)
def test_emptystruct(self):
ns = self.convert("""
typedef struct tagEMPTY {
} EMPTY;
""")
self.failUnlessEqual(ctypes.sizeof(ns.tagEMPTY), 0)
if __name__ == "__main__":
unittest.main()
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