oledb32: Implement DBTYPE_I4 -> DBTYPE_VARIANT conversion.

dlls/oledb32/convert.c

@@ -740,6 +740,11 @@ static HRESULT WINAPI convert_DataConvert(IDataConvert* iface,
 
         switch(src_type)
         {
+        case DBTYPE_I4:
+            V_VT(v) = VT_I4;
+            V_I4(v) = *(signed int*)src;
+            hr = S_OK;
+            break;
         case DBTYPE_BSTR:
         {
             BSTR s = *(WCHAR**)src;
@@ -747,8 +752,8 @@ static HRESULT WINAPI convert_DataConvert(IDataConvert* iface,
             V_VT(v) = VT_BSTR;
             V_BSTR(v) = SysAllocString(s);
             hr = V_BSTR(v) ? S_OK : E_OUTOFMEMORY;
+            break;
         }
-        break;
         default: FIXME("Unimplemented conversion %04x -> VARIANT\n", src_type); return E_NOTIMPL;
         }
         break;

dlls/oledb32/tests/convert.c

@@ -2481,6 +2481,7 @@ static void test_converttovar(void)
     DBLENGTH dst_len;
     VARIANT dst;
     HRESULT hr;
+    INT i4;
 
     hr = CoCreateInstance(&CLSID_OLEDB_CONVERSIONLIBRARY, NULL, CLSCTX_INPROC_SERVER, &IID_IDataConvert, (void**)&convert);
     if(FAILED(hr))
@@ -2508,6 +2509,17 @@ static void test_converttovar(void)
     ok(!lstrcmpW(V_BSTR(&dst), strW), "got %s\n", wine_dbgstr_w(V_BSTR(&dst)));
     VariantClear(&dst);
 
+    V_VT(&dst) = VT_EMPTY;
+    dst_len = 0;
+    dst_status = DBSTATUS_S_DEFAULT;
+    i4 = 123;
+    hr = IDataConvert_DataConvert(convert, DBTYPE_I4, DBTYPE_VARIANT, sizeof(i4), &dst_len, &i4, &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 == sizeof(dst), "got %ld\n", dst_len);
+    ok(V_VT(&dst) == VT_I4, "got %d\n", V_VT(&dst));
+    ok(V_I4(&dst) == 123, "got %d\n", V_I4(&dst));
+
     IDataConvert_Release(convert);
 }