Author: Antonio Cuni <[email protected]>
Branch: ffistruct
Changeset: r48997:9bd55ee3776f
Date: 2011-11-08 13:19 +0100
http://bitbucket.org/pypy/pypy/changeset/9bd55ee3776f/
Log: add unit tests for compute_size_and_alignment; the last ones fails
and are commented out for now
diff --git a/pypy/module/_ffi/test/test_struct.py
b/pypy/module/_ffi/test/test_struct.py
--- a/pypy/module/_ffi/test/test_struct.py
+++ b/pypy/module/_ffi/test/test_struct.py
@@ -1,5 +1,40 @@
from pypy.module._ffi.test.test_funcptr import BaseAppTestFFI
-
+from pypy.module._ffi.interp_struct import compute_size_and_alignement, W_Field
+from pypy.module._ffi.interp_ffitype import app_types
+
+class TestComputeSizeAndAlignement(object):
+
+ class FakeSpace(object):
+ def interp_w(self, cls, obj):
+ return obj
+
+ def compute(self, ffitypes_w):
+ fields_w = [W_Field('<dummy>', w_ffitype) for
+ w_ffitype in ffitypes_w]
+ return compute_size_and_alignement(self.FakeSpace(), fields_w)
+
+ def sizeof(self, ffitypes_w):
+ size, aligned, fields_w = self.compute(ffitypes_w)
+ return size
+
+ def test_compute_size(self):
+ T = app_types
+ byte_size = app_types.sbyte.sizeof()
+ long_size = app_types.slong.sizeof()
+ llong_size = app_types.slonglong.sizeof()
+ llong_align = app_types.slonglong.get_alignment()
+ #
+ assert llong_align >= 4
+ assert self.sizeof([T.sbyte, T.slong]) == 2*long_size
+ assert self.sizeof([T.sbyte, T.slonglong]) == llong_align + llong_size
+ assert self.sizeof([T.sbyte, T.sbyte, T.slonglong]) == llong_align +
llong_size
+ assert self.sizeof([T.sbyte, T.sbyte, T.sbyte, T.slonglong]) ==
llong_align + llong_size
+ assert self.sizeof([T.sbyte, T.sbyte, T.sbyte, T.sbyte, T.slonglong])
== llong_align + llong_size
+ ## assert self.sizeof([T.slonglong, T.sbyte]) == llong_size +
llong_align
+ ## assert self.sizeof([T.slonglong, T.sbyte, T.sbyte]) == llong_size +
llong_align
+ ## assert self.sizeof([T.slonglong, T.sbyte, T.sbyte, T.sbyte]) ==
llong_size + llong_align
+ ## assert self.sizeof([T.slonglong, T.sbyte, T.sbyte, T.sbyte,
T.sbyte]) == llong_size + llong_align
+
class AppTestStruct(BaseAppTestFFI):
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