native type test

Author: andreax79

tests/test_native_types.py

@@ -0,0 +1,59 @@
+#!/usr/bin/env python
+# *****************************************************************************
+#
+# Copyright (c) 2013-2019 Andrea Bonomi <andrea.bonomi@gmail.com>
+#
+# Published under the terms of the MIT license.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+#
+# *****************************************************************************
+
+from cstruct import MemCStruct, sizeof
+from cstruct.base import TYPEDEFS
+from cstruct.native_types import AbstractNativeType
+
+
+class SizeT(AbstractNativeType):
+    type_name = "size_t"
+    native_format = "Q"
+
+
+class StructWithSizeT(MemCStruct):
+    __def__ = """
+        typedef size_t size;
+        typedef unsigned long long ull;
+
+        struct StructWithSizeT {
+            ull     a;
+            size_t  b;
+            size    c;
+        }
+    """
+
+
+def test_typedef():
+    assert TYPEDEFS["size"] == "size_t"
+    assert TYPEDEFS["ull"] == "unsigned long long"
+
+
+def test_sizeof_custom_native_type():
+    assert sizeof("size_t") == 8
+    assert sizeof("ull") == 8
+    assert sizeof("struct StructWithSizeT") == 8 * 3