reactos/rostests/apitests/atl/CComBSTR.cpp

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/*
* PROJECT: ReactOS api tests
* LICENSE: LGPLv2.1+ - See COPYING.LIB in the top level directory
* PURPOSE: Test for CComBSTR
* PROGRAMMER: Mark Jansen
*/
#include <apitest.h>
#include <atlbase.h>
#include <atlcom.h>
#include "resource.h"
#define verify_str (winetest_set_location(__FILE__, __LINE__), 0) ? (void)0 : verify_str_imp
#define verify_str2 (winetest_set_location(__FILE__, __LINE__), 0) ? (void)0 : verify_str_imp2
static void verify_str_imp2(const CComBSTR& comstr, PCWSTR expected, size_t ExpectedLength)
{
BSTR str = (BSTR)comstr;
if (expected || ExpectedLength)
{
winetest_ok(str != NULL, "Expected str to be a valid pointer\n");
if (str)
{
if (expected)
{
winetest_ok(!wcscmp(str, expected), "Expected the string to be '%s', was '%s'\n", wine_dbgstr_w(expected), wine_dbgstr_w(str));
}
size_t Length = comstr.Length();
winetest_ok(Length == ExpectedLength, "Expected Length to be %u, was: %u\n", ExpectedLength, Length);
Length = comstr.ByteLength();
ExpectedLength *= sizeof(WCHAR);
winetest_ok(Length == ExpectedLength, "Expected ByteLength to be %u, was: %u\n", ExpectedLength, Length);
}
}
else
{
winetest_ok(str == NULL || str[0] == '\0', "Expected str to be empty, was: '%s'\n", wine_dbgstr_w(str));
}
}
static void verify_str_imp(const CComBSTR& comstr, PCWSTR expected)
{
verify_str_imp2(comstr, expected, expected ? wcslen(expected) : 0);
}
void test_construction()
{
CComBSTR empty1, empty2;
CComBSTR happyW(L"I am a happy BSTR");
CComBSTR happyA("I am a happy BSTR");
CComBSTR happyW4(4, L"I am a happy BSTR");
CComBSTR fromlen1(1), fromlen10(10);
CComBSTR fromBSTRW(happyW), fromBSTRA(happyA), fromBSTRW4(happyW4);
CComBSTR fromBSTRlen1(fromlen1), fromBSTRlen10(fromlen10);
verify_str(empty1, NULL);
verify_str(empty2, NULL);
verify_str(happyW, L"I am a happy BSTR");
verify_str(happyA, L"I am a happy BSTR");
verify_str(happyW4, L"I am");
verify_str2(fromlen1, NULL, 1);
verify_str2(fromlen10, NULL, 10);
verify_str(fromBSTRW, L"I am a happy BSTR");
verify_str(fromBSTRA, L"I am a happy BSTR");
verify_str(fromBSTRW4, L"I am");
verify_str2(fromBSTRlen1, NULL, 1);
verify_str2(fromBSTRlen10, NULL, 10);
}
void test_copyassignment()
{
CComBSTR happy(L"I am a happy BSTR"), empty, odd;
CComBSTR happyCopy1, happyCopy2, emptyCopy, oddCopy;
odd = ::SysAllocStringByteLen("aaaaa", 3);
happyCopy1 = happy.Copy();
happyCopy2 = happy; // Calls happyW.Copy()
emptyCopy = empty.Copy();
oddCopy = odd.Copy();
verify_str(happy, L"I am a happy BSTR");
verify_str(empty, NULL);
verify_str2(odd, L"\u6161a", 2);
verify_str(happyCopy1, L"I am a happy BSTR");
verify_str(happyCopy2, L"I am a happy BSTR");
verify_str(emptyCopy, NULL);
verify_str2(oddCopy, L"\u6161a", 2);
ok((BSTR)happy != (BSTR)happyCopy1, "Expected pointers to be different\n");
ok((BSTR)happy != (BSTR)happyCopy2, "Expected pointers to be different\n");
happyCopy1 = (LPCOLESTR)NULL;
happyCopy2 = (LPCSTR)NULL;
verify_str(happyCopy1, NULL);
verify_str(happyCopy2, NULL);
HRESULT hr = happy.CopyTo(&happyCopy1);
ok(hr == S_OK, "Expected hr to be E_POINTER, was: %08lx\n", hr);
#if 0
// This asserts
hr = happy.CopyTo((BSTR*)NULL);
ok(hr == E_POINTER, "Expected hr to be E_POINTER, was: %u\n");
#endif
}
void test_fromguid()
{
GUID guid = { 0x12345678, 0x9abc, 0xdef0, { 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0} };
CComBSTR fromGuid(guid), empty;
verify_str(fromGuid, L"{12345678-9ABC-DEF0-1234-56789ABCDEF0}");
verify_str(empty, NULL);
empty = fromGuid;
verify_str(empty, L"{12345678-9ABC-DEF0-1234-56789ABCDEF0}");
}
void test_loadres()
{
CComBSTR test1, test2, test3;
HMODULE mod = GetModuleHandle(NULL);
ok(true == test1.LoadString(mod, IDS_TEST1), "Expected LoadString to succeed\n");
ok(true == test2.LoadString(mod, IDS_TEST2), "Expected LoadString to succeed\n");
ok(false == test3.LoadString(mod, IDS_TEST2 + 1), "Expected LoadString to fail\n");
verify_str(test1, L"Test string one.");
verify_str(test2, L"I am a happy BSTR");
verify_str(test3, NULL);
}
START_TEST(CComBSTR)
{
test_construction();
test_copyassignment();
test_fromguid();
test_loadres();
}