[PATCH 4/6] oledb32: Support converting DBTYPE_VARIANT to DBTYPE_GUID.

[Zhiyi Zhang]

From: Zhiyi Zhang

---
 dlls/oledb32/convert.c       | 11 +++++++++++
 dlls/oledb32/tests/convert.c |  7 -------
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/dlls/oledb32/convert.c b/dlls/oledb32/convert.c
index 4ed9f0d8cc6..bb427e0cb54 100644
--- a/dlls/oledb32/convert.c
+++ b/dlls/oledb32/convert.c
@@ -855,6 +855,17 @@ static HRESULT WINAPI convert_DataConvert(IDataConvert* iface,
         {
         case DBTYPE_EMPTY:       *d = GUID_NULL; hr = S_OK; break;
         case DBTYPE_GUID:        *d = *(GUID*)src; hr = S_OK; break;
+        case DBTYPE_VARIANT:
+            if (V_VT((VARIANT *)src) == VT_BSTR)
+            {
+                hr = CLSIDFromString(V_BSTR((VARIANT *)src), d);
+                if (FAILED(hr))
+                {
+                    *dst_len = sizeof(GUID);
+                    *dst_status = DBSTATUS_E_CANTCONVERTVALUE;
+                }
+                break;
+            }
         default: FIXME("Unimplemented conversion %04x -> GUID\n", src_type); return E_NOTIMPL;
         }
         break;
diff --git a/dlls/oledb32/tests/convert.c b/dlls/oledb32/tests/convert.c
index 019e8c96d93..aea2e40473c 100644
--- a/dlls/oledb32/tests/convert.c
+++ b/dlls/oledb32/tests/convert.c
@@ -2686,13 +2686,9 @@ static void test_converttoguid(void)
     V_VT(&v) = VT_BSTR;
     V_BSTR(&v) = SysAllocStringLen(L"{0c733a8d-2a1c-11ce-ade5-00aa0044773d}", 38);
     hr = IDataConvert_DataConvert(convert, DBTYPE_VARIANT, DBTYPE_GUID, 0, &dst_len, &v, &dst, sizeof(dst), 0, &dst_status, 0, 0, 0);
-    todo_wine
     ok(hr == S_OK, "got %08lx\n", hr);
-    todo_wine
     ok(dst_status == DBSTATUS_S_OK, "got %08lx\n", dst_status);
-    todo_wine
     ok(dst_len == sizeof(GUID), "got %Id\n", dst_len);
-    todo_wine
     ok(IsEqualGUID(&dst, &IID_IDataConvert), "didn't get IID_IDataConvert\n");
     SysFreeString(V_BSTR(&v));

@@ -2700,11 +2696,8 @@ static void test_converttoguid(void)
     V_VT(&v) = VT_BSTR;
     V_BSTR(&v) = SysAllocStringLen(L"{invalid0-0000-0000-0000-000000000000}", 38);
     hr = IDataConvert_DataConvert(convert, DBTYPE_VARIANT, DBTYPE_GUID, 0, &dst_len, &v, &dst, sizeof(dst), 0, &dst_status, 0, 0, 0);
-    todo_wine
     ok(hr == CO_E_CLASSSTRING, "got %08lx\n", hr);
-    todo_wine
     ok(dst_status == DBSTATUS_E_CANTCONVERTVALUE, "got %08lx\n", dst_status);
-    todo_wine
     ok(dst_len == sizeof(GUID), "got %Id\n", dst_len);
     SysFreeString(V_BSTR(&v));
 }