MOAB: Mesh Oriented datABase  (version 5.2.1)
VarLenTagTest.cpp
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00001 #include "TestUtil.hpp"
00002 #include "VarLenTag.hpp"
00003 
00004 using namespace moab;
00005 
00006 #include <iostream>
00007 
00008 void test_valid_struct();
00009 void test_inline();
00010 void test_non_inline();
00011 void test_resize_ii();
00012 void test_resize_in();
00013 void test_resize_ni();
00014 void test_resize_nn();
00015 
00016 int main()
00017 {
00018     int count = 0;
00019     count += RUN_TEST( test_valid_struct );
00020     if( count )
00021     {
00022         std::cerr << "ABORTING VarLenTag TEST" << std::endl << "Structure is not valid" << std::endl;
00023         return count;
00024     }
00025 
00026     count += RUN_TEST( test_inline );
00027     count += RUN_TEST( test_non_inline );
00028     count += RUN_TEST( test_resize_ii );
00029     count += RUN_TEST( test_resize_in );
00030     count += RUN_TEST( test_resize_ni );
00031     count += RUN_TEST( test_resize_nn );
00032 
00033     return count;
00034 }
00035 
00036 #define OFFSET( A ) ( (char*)( &( A ) ) - (char*)this )
00037 class GetOffsets : public VarLenTag
00038 {
00039   public:
00040     unsigned pointer_array_offset()
00041     {
00042         return OFFSET( mData.mData.mPointer.array );
00043     }
00044     unsigned pointer_size_offset()
00045     {
00046         return OFFSET( mData.mData.mPointer.size );
00047     }
00048 #ifdef VAR_LEN_TAG_ELIDE_DATA
00049     unsigned inline_array_offset()
00050     {
00051         return OFFSET( mData.mData.mInline.array );
00052     }
00053     unsigned inline_size_offset()
00054     {
00055         return OFFSET( mData.mData.mInline.size );
00056     }
00057 #endif
00058 };
00059 struct ExpectedSize
00060 {
00061     unsigned char* pointer;
00062     unsigned size;
00063 };
00064 
00065 void test_valid_struct()
00066 {
00067     GetOffsets off;
00068     CHECK_EQUAL( 0u, off.pointer_array_offset() );
00069 #ifdef VAR_LEN_TAG_ELIDE_DATA
00070     CHECK_EQUAL( 0u, off.inline_array_offset() );
00071     CHECK_EQUAL( off.pointer_size_offset(), off.inline_size_offset() );
00072 #endif
00073     CHECK_EQUAL( sizeof( ExpectedSize ), sizeof( VarLenTag ) );
00074 }
00075 
00076 void test_inline()
00077 {
00078     VarLenTag tag( sizeof( void* ) );
00079     CHECK_EQUAL( (unsigned char*)&tag, tag.data() );
00080 }
00081 
00082 void test_non_inline()
00083 {
00084     VarLenTag tag( 2 * sizeof( void* ) );
00085     CHECK( (unsigned char*)&tag != tag.data() );
00086 }
00087 
00088 void test_resize_ii()
00089 {
00090     VarLenTag tag( 1 );
00091     tag.data()[0]      = 'X';
00092     unsigned char* ptr = tag.resize( 3 );
00093     CHECK_EQUAL( tag.data(), ptr );
00094     CHECK_EQUAL( (unsigned char*)&tag, tag.data() );
00095     CHECK_EQUAL( tag.data()[0], 'X' );
00096 }
00097 
00098 void test_resize_in()
00099 {
00100     VarLenTag tag( sizeof( void* ) );
00101     memcpy( tag.data(), "ABCDEFGHIJKLMNOPQRST", sizeof( void* ) );
00102     unsigned char* ptr = tag.resize( 2 * sizeof( void* ) );
00103     CHECK_EQUAL( tag.data(), ptr );
00104     CHECK( (unsigned char*)&tag != tag.data() );
00105     CHECK( !memcmp( tag.data(), "ABCDEFGHIJKLMNOPQRST", sizeof( void* ) ) );
00106 }
00107 
00108 void test_resize_ni()
00109 {
00110     VarLenTag tag( 2 * sizeof( void* ) );
00111     memcpy( tag.data(), "12345678901234567890", sizeof( void* ) );
00112     unsigned char* ptr = tag.resize( sizeof( void* ) );
00113     CHECK_EQUAL( tag.data(), ptr );
00114     CHECK_EQUAL( (unsigned char*)&tag, tag.data() );
00115     CHECK( !memcmp( tag.data(), "12345678901234567890", sizeof( void* ) ) );
00116 }
00117 
00118 void test_resize_nn()
00119 {
00120     VarLenTag tag( 2 * sizeof( void* ) );
00121     memcpy( tag.data(), "TSRQPONMLKJIHGFEDCBA", 2 * sizeof( void* ) );
00122     unsigned char* ptr = tag.resize( 4 * sizeof( void* ) );
00123     CHECK_EQUAL( tag.data(), ptr );
00124     CHECK( (unsigned char*)&tag != tag.data() );
00125     CHECK( !memcmp( tag.data(), "TSRQPONMLKJIHGFEDCBA", sizeof( void* ) ) );
00126 }
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