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Adding unit test for struct packing

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svn-id: r23570
This commit is contained in:
Max Horn 2006-07-22 18:39:41 +00:00
parent 2859b64702
commit b4af5bc331
1 changed files with 36 additions and 0 deletions
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36
test/common/pack.h Normal file
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#include <cxxtest/TestSuite.h>
#include "common/stdafx.h"
#include "common/scummsys.h"
#include <common/pack-start.h> // START STRUCT PACKING
struct TestStruct {
uint32 x;
byte y;
uint16 z;
uint32 a;
byte b;
};
#include <common/pack-end.h> // END STRUCT PACKING
#define OFFS(type,item) (int)(&((type*)0)->type::item)
class PackTestSuite : public CxxTest::TestSuite
{
public:
void test_packing( void )
{
TS_ASSERT_EQUALS( sizeof(TestStruct), 4+1+2+4+1 );
}
void test_offsets( void )
{
TS_ASSERT_EQUALS( OFFS(TestStruct, x), 0 );
TS_ASSERT_EQUALS( OFFS(TestStruct, y), 4 );
TS_ASSERT_EQUALS( OFFS(TestStruct, z), 5 );
TS_ASSERT_EQUALS( OFFS(TestStruct, a), 7 );
TS_ASSERT_EQUALS( OFFS(TestStruct, b), 11 );
}
};