diff --git a/dlls/oledb32/tests/convert.c b/dlls/oledb32/tests/convert.c
index eb62e91b094..f25288e5f1b 100644
--- a/dlls/oledb32/tests/convert.c
+++ b/dlls/oledb32/tests/convert.c
@@ -1002,6 +1002,64 @@ static void test_converttowstr(void)
     ok(dst[3] == 0, "got %02x\n", dst[3]);
     ok(dst[4] == 0xcccc, "got %02x\n", dst[4]);
 
+
+
+    *(int *)src = 4321;
+    hr = IDataConvert_DataConvert(convert, DBTYPE_I4, DBTYPE_WSTR, 0, &dst_len, src, dst, sizeof(dst), 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 == 8, "got %d\n", dst_len);
+    ok(!lstrcmpW(dst, fourthreetwoone), "got %s\n", wine_dbgstr_w(dst));
+
+    *(int *)src = 4321;
+    memset(dst, 0xcc, sizeof(dst));
+    hr = IDataConvert_DataConvert(convert, DBTYPE_I4, DBTYPE_WSTR, 0, &dst_len, src, dst, 0, 0, &dst_status, 0, 0, 0);
+    ok(hr == DB_E_ERRORSOCCURRED, "got %08x\n", hr);
+    ok(dst_status == DBSTATUS_E_DATAOVERFLOW, "got %08x\n", dst_status);
+    ok(dst_len == 8, "got %d\n", dst_len);
+    ok(dst[0] == 0xcccc, "got %02x\n", dst[0]);
+
+    *(int *)src = 4321;
+    memset(dst, 0xcc, sizeof(dst));
+    hr = IDataConvert_DataConvert(convert, DBTYPE_I4, DBTYPE_WSTR, 0, &dst_len, src, NULL, 0, 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 == 8, "got %d\n", dst_len);
+    ok(dst[0] == 0xcccc, "got %02x\n", dst[0]);
+
+    *(int *)src = 4321;
+    memset(dst, 0xcc, sizeof(dst));
+    hr = IDataConvert_DataConvert(convert, DBTYPE_I4, DBTYPE_WSTR, 0, &dst_len, src, dst, 4, 0, &dst_status, 0, 0, 0);
+    ok(hr == S_OK, "got %08x\n", hr);
+    ok(dst_status == DBSTATUS_S_TRUNCATED, "got %08x\n", dst_status);
+    ok(dst_len == 8, "got %d\n", dst_len);
+    ok(dst[0] == '4', "got %02x\n", dst[0]);
+    ok(dst[1] == 0, "got %02x\n", dst[1]);
+    ok(dst[2] == 0xcccc, "got %02x\n", dst[2]);
+
+    *(int *)src = 4321;
+    memset(dst, 0xcc, sizeof(dst));
+    hr = IDataConvert_DataConvert(convert, DBTYPE_I4, DBTYPE_WSTR, 0, &dst_len, src, dst, 2, 0, &dst_status, 0, 0, 0);
+    ok(hr == S_OK, "got %08x\n", hr);
+    ok(dst_status == DBSTATUS_S_TRUNCATED, "got %08x\n", dst_status);
+    ok(dst_len == 8, "got %d\n", dst_len);
+    ok(dst[0] == 0, "got %02x\n", dst[0]);
+    ok(dst[1] == 0xcccc, "got %02x\n", dst[1]);
+
+    *(int *)src = 4321;
+    memset(dst, 0xcc, sizeof(dst));
+    hr = IDataConvert_DataConvert(convert, DBTYPE_I4, DBTYPE_WSTR, 0, &dst_len, src, dst, 8, 0, &dst_status, 0, 0, 0);
+    ok(hr == S_OK, "got %08x\n", hr);
+    ok(dst_status == DBSTATUS_S_TRUNCATED, "got %08x\n", dst_status);
+    ok(dst_len == 8, "got %d\n", dst_len);
+    ok(dst[0] == '4', "got %02x\n", dst[0]);
+    ok(dst[1] == '3', "got %02x\n", dst[1]);
+    ok(dst[2] == '2', "got %02x\n", dst[2]);
+    ok(dst[3] == 0, "got %02x\n", dst[3]);
+    ok(dst[4] == 0xcccc, "got %02x\n", dst[4]);
+
+
+
     b = SysAllocString(ten);
     *(BSTR *)src = b;
     hr = IDataConvert_DataConvert(convert, DBTYPE_BSTR, DBTYPE_WSTR, 0, &dst_len, src, dst, sizeof(dst), 0, &dst_status, 0, 0, 0);
@@ -1126,6 +1184,63 @@ static void test_converttostr(void)
     ok(dst[3] == 0, "got %02x\n", dst[3]);
     ok(dst[4] == (char)0xcc, "got %02x\n", dst[4]);
 
+
+    *(int *)src = 4321;
+    hr = IDataConvert_DataConvert(convert, DBTYPE_I4, DBTYPE_STR, 0, &dst_len, src, dst, sizeof(dst), 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 == 4, "got %d\n", dst_len);
+    ok(!lstrcmpA(dst, fourthreetwoone), "got %s\n", dst);
+
+    *(int *)src = 4321;
+    memset(dst, 0xcc, sizeof(dst));
+    hr = IDataConvert_DataConvert(convert, DBTYPE_I4, DBTYPE_STR, 0, &dst_len, src, dst, 0, 0, &dst_status, 0, 0, 0);
+    ok(hr == DB_E_ERRORSOCCURRED, "got %08x\n", hr);
+    ok(dst_status == DBSTATUS_E_DATAOVERFLOW, "got %08x\n", dst_status);
+    ok(dst_len == 4, "got %d\n", dst_len);
+    ok(dst[0] == (char)0xcc, "got %02x\n", dst[0]);
+
+    *(int *)src = 4321;
+    memset(dst, 0xcc, sizeof(dst));
+    hr = IDataConvert_DataConvert(convert, DBTYPE_I4, DBTYPE_STR, 0, &dst_len, src, NULL, 0, 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 == 4, "got %d\n", dst_len);
+    ok(dst[0] == (char)0xcc, "got %02x\n", dst[0]);
+
+    *(int *)src = 4321;
+    memset(dst, 0xcc, sizeof(dst));
+    hr = IDataConvert_DataConvert(convert, DBTYPE_I4, DBTYPE_STR, 0, &dst_len, src, dst, 2, 0, &dst_status, 0, 0, 0);
+    ok(hr == S_OK, "got %08x\n", hr);
+    ok(dst_status == DBSTATUS_S_TRUNCATED, "got %08x\n", dst_status);
+    ok(dst_len == 4, "got %d\n", dst_len);
+    ok(dst[0] == '4', "got %02x\n", dst[0]);
+    ok(dst[1] == 0, "got %02x\n", dst[1]);
+    ok(dst[2] == (char)0xcc, "got %02x\n", dst[2]);
+
+    *(int *)src = 4321;
+    memset(dst, 0xcc, sizeof(dst));
+    hr = IDataConvert_DataConvert(convert, DBTYPE_I4, DBTYPE_STR, 0, &dst_len, src, dst, 1, 0, &dst_status, 0, 0, 0);
+    ok(hr == S_OK, "got %08x\n", hr);
+    ok(dst_status == DBSTATUS_S_TRUNCATED, "got %08x\n", dst_status);
+    ok(dst_len == 4, "got %d\n", dst_len);
+    ok(dst[0] == 0, "got %02x\n", dst[0]);
+    ok(dst[1] == (char)0xcc, "got %02x\n", dst[1]);
+
+    *(int *)src = 4321;
+    memset(dst, 0xcc, sizeof(dst));
+    hr = IDataConvert_DataConvert(convert, DBTYPE_I4, DBTYPE_STR, 0, &dst_len, src, dst, 4, 0, &dst_status, 0, 0, 0);
+    ok(hr == S_OK, "got %08x\n", hr);
+    ok(dst_status == DBSTATUS_S_TRUNCATED, "got %08x\n", dst_status);
+    ok(dst_len == 4, "got %d\n", dst_len);
+    ok(dst[0] == '4', "got %02x\n", dst[0]);
+    ok(dst[1] == '3', "got %02x\n", dst[1]);
+    ok(dst[2] == '2', "got %02x\n", dst[2]);
+    ok(dst[3] == 0, "got %02x\n", dst[3]);
+    ok(dst[4] == (char)0xcc, "got %02x\n", dst[4]);
+
+
+
     b = SysAllocString(ten);
     *(BSTR *)src = b;
     memset(dst, 0xcc, sizeof(dst));