oledb32: Implement DataConvert DBTYPE_DBDATE->DBTYPE_DBDATE.

dlls/oledb32/convert.c

@@ -131,6 +131,8 @@ static int get_length(DBTYPE type)
     case DBTYPE_R8:
     case DBTYPE_DATE:
         return 8;
+    case DBTYPE_DBDATE:
+        return sizeof(DBDATE);
     case DBTYPE_DBTIMESTAMP:
 	return sizeof(DBTIMESTAMP);
     case DBTYPE_CY:
@@ -413,6 +415,16 @@ static HRESULT WINAPI convert_DataConvert(IDataConvert* iface,
         }
         break;
     }
+    case DBTYPE_DBDATE:
+    {
+        DBDATE *d=dst;
+        switch (src_type)
+        {
+        case DBTYPE_DBDATE: memcpy(d, src, sizeof(DBDATE));  hr = S_OK; break;
+        default: FIXME("Unimplemented conversion %04x -> DBDATE\n", src_type); return  E_NOTIMPL;
+        }
+        break;
+    }
     case DBTYPE_DBTIMESTAMP:
     {
         DBTIMESTAMP *d=dst;

dlls/oledb32/tests/convert.c

@@ -2447,6 +2447,24 @@ static void test_converttobytes(void)
     ok(!memcmp(byte_src, dst, 2 ), "bytes differ\n");
 }
 
+static void test_converttodbdate(void)
+{
+    DBLENGTH dst_len;
+    HRESULT hr;
+    DBDATE ts = {2013, 5, 14};
+    DBDATE dst;
+    DBSTATUS dst_status;
+
+    dst_len = 0;
+    hr = IDataConvert_DataConvert(convert, DBTYPE_DBDATE, DBTYPE_DBDATE, sizeof(ts), &dst_len, &ts, &dst, 2, 0, &dst_status, 0, 0, 0);
+    ok(hr == S_OK, "got %08x\n", hr);
+    ok(dst_status == DBSTATUS_S_OK, "got %08x\n", dst_status);
+    ok(dst_len == sizeof(DBDATE), "got %ld\n", dst_len);
+    ok(!memcmp(&ts, &dst, sizeof(DBDATE) ), "bytes differ\n");
+
+}
+
+
 static void test_converttovar(void)
 {
     static WCHAR strW[] = {'t','e','s','t',0};
@@ -2601,6 +2619,7 @@ START_TEST(convert)
     test_converttoui8();
     test_converttovar();
     test_converttobytes();
+    test_converttodbdate();
     test_getconversionsize();
 
     IDataConvert_Release(convert);