shell32/tests: Tests for broken apps that check GetLastError() after SHFileOperation().

dlls/shell32/tests/shlfileop.c

@@ -1819,6 +1819,30 @@ static void test_copy(void)
         ok(DeleteFileA("abcdefgh.abc"), "Expected file to exist\n");
     ok(DeleteFileA("dir\\abcdefgh.abc"), "Expected file to exist\n");
     ok(RemoveDirectoryA("dir"), "Expected dir to exist\n");
+
+    /* Check last error after a successful file operation. */
+    clean_after_shfo_tests();
+    init_shfo_tests();
+    shfo.pFrom = "test1.txt\0";
+    shfo.pTo = "testdir2\0";
+    shfo.fFlags = FOF_NOCONFIRMATION | FOF_SILENT | FOF_NOERRORUI;
+    SetLastError(0xdeadbeef);
+    retval = SHFileOperationA(&shfo);
+    ok(retval == ERROR_SUCCESS, "File copy failed with %d\n", retval);
+    ok(!shfo.fAnyOperationsAborted, "Didn't expect aborted operations\n");
+    ok(GetLastError() == ERROR_SUCCESS, "Expected ERROR_SUCCESS, got %d\n", GetLastError());
+
+    /* Check last error after a failed file operation. */
+    clean_after_shfo_tests();
+    init_shfo_tests();
+    shfo.pFrom = "nonexistent\0";
+    shfo.pTo = "testdir2\0";
+    shfo.fFlags = FOF_NOCONFIRMATION | FOF_SILENT | FOF_NOERRORUI;
+    SetLastError(0xdeadbeef);
+    retval = SHFileOperationA(&shfo);
+    ok(retval != ERROR_SUCCESS, "Unexpected ERROR_SUCCESS\n");
+    ok(!shfo.fAnyOperationsAborted, "Didn't expect aborted operations\n");
+    ok(GetLastError() == ERROR_SUCCESS, "Expected ERROR_SUCCESS, got %d\n", GetLastError());
 }
 
 /* tests the FO_MOVE action */
@@ -2464,6 +2488,7 @@ static void test_unicode(void)
     SHFILEOPSTRUCTW shfoW;
     int ret;
     HANDLE file;
+    static const WCHAR UNICODE_PATH_TO[] = {'c',':','\\',0x00ae,0x00ae,'\0'};
 
     if (!pSHFileOperationW)
     {
@@ -2530,6 +2555,36 @@ static void test_unicode(void)
     ret = pSHFileOperationW(&shfoW);
     ok(!ret, "Directory is not removed, ErrorCode: %d\n", ret);
     ok(!file_existsW(UNICODE_PATH), "The directory should have been removed\n");
+
+    shfoW.hwnd = NULL;
+    shfoW.wFunc = FO_COPY;
+    shfoW.pFrom = UNICODE_PATH;
+    shfoW.pTo = UNICODE_PATH_TO;
+    shfoW.fFlags = FOF_NOCONFIRMATION | FOF_SILENT | FOF_NOERRORUI;
+    shfoW.hNameMappings = NULL;
+    shfoW.lpszProgressTitle = NULL;
+
+    /* Check last error after a successful file operation. */
+    createTestFileW(UNICODE_PATH);
+    ok(file_existsW(UNICODE_PATH), "The file does not exist\n");
+    SetLastError(0xdeadbeef);
+    ret = SHFileOperationW(&shfoW);
+    ok(ret == ERROR_SUCCESS, "File copy failed with %d\n", ret);
+    ok(!shfoW.fAnyOperationsAborted, "Didn't expect aborted operations\n");
+    ok(GetLastError() == ERROR_SUCCESS ||
+       broken(GetLastError() == ERROR_INVALID_HANDLE), /* WinXp, win2k3 */
+       "Expected ERROR_SUCCESS, got %d\n", GetLastError());
+
+    /* Check last error after a failed file operation. */
+    DeleteFileW(UNICODE_PATH);
+    ok(!file_existsW(UNICODE_PATH), "The file should have been removed\n");
+    SetLastError(0xdeadbeef);
+    ret = SHFileOperationW(&shfoW);
+    ok(ret != ERROR_SUCCESS, "Unexpected ERROR_SUCCESS\n");
+    ok(!shfoW.fAnyOperationsAborted, "Didn't expect aborted operations\n");
+    ok(GetLastError() == ERROR_SUCCESS ||
+       broken(GetLastError() == ERROR_INVALID_HANDLE), /* WinXp, win2k3 */
+       "Expected ERROR_SUCCESS, got %d\n", GetLastError());
 }
 
 static void