Nikolay Sivov : oledb32: Implement DBTYPE_BSTR to DBTYPE_VARIANT conversion .

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 38a362a25ca9e85bcc656d680f9d01187f82d2bc
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=38a362a25ca9e85bcc656d680f...

Author: Nikolay Sivov <nsivov(a)codeweavers.com>
Date:   Sun Apr  7 23:28:33 2013 +0400

oledb32: Implement DBTYPE_BSTR to DBTYPE_VARIANT conversion.

---

 dlls/oledb32/convert.c       |   22 ++++++++++++++++++++++
 dlls/oledb32/tests/convert.c |   39 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 61 insertions(+), 0 deletions(-)

diff --git a/dlls/oledb32/convert.c b/dlls/oledb32/convert.c
index f2c46b0..0e31e4a 100644
--- a/dlls/oledb32/convert.c
+++ b/dlls/oledb32/convert.c
@@ -145,6 +145,8 @@ static int get_length(DBTYPE type)
     case DBTYPE_STR:
     case DBTYPE_BYREF | DBTYPE_WSTR:
         return 0;
+    case DBTYPE_VARIANT:
+        return sizeof(VARIANT);
     default:
         FIXME("Unhandled type %04x\n", type);
         return 0;
@@ -727,6 +729,26 @@ static HRESULT WINAPI convert_DataConvert(IDataConvert* iface,
         return hr;
     }
 
+    case DBTYPE_VARIANT:
+    {
+        VARIANT *v = dst;
+
+        switch(src_type)
+        {
+        case DBTYPE_BSTR:
+        {
+            BSTR s = *(WCHAR**)src;
+            TRACE("%s\n", debugstr_w(s));
+            V_VT(v) = VT_BSTR;
+            V_BSTR(v) = SysAllocString(s);
+            hr = V_BSTR(v) ? S_OK : E_OUTOFMEMORY;
+        }
+        break;
+        default: FIXME("Unimplemented conversion %04x -> VARIANT\n", src_type); return E_NOTIMPL;
+        }
+        break;
+    }
+
     default:
         FIXME("Unimplemented conversion %04x -> %04x\n", src_type, dst_type);
         return E_NOTIMPL;
diff --git a/dlls/oledb32/tests/convert.c b/dlls/oledb32/tests/convert.c
index 400ea3d..3c2f661 100644
--- a/dlls/oledb32/tests/convert.c
+++ b/dlls/oledb32/tests/convert.c
@@ -2440,6 +2440,7 @@ static void test_getconversionsize(void)
     IDataConvert *convert;
     DBLENGTH dst_len;
     HRESULT hr;
+    BSTR str;
 
     hr = CoCreateInstance(&CLSID_OLEDB_CONVERSIONLIBRARY, NULL, CLSCTX_INPROC_SERVER, &IID_IDataConvert, (void**)&convert);
     if(FAILED(hr))
@@ -2461,6 +2462,43 @@ static void test_getconversionsize(void)
     hr = IDataConvert_GetConversionSize(convert, DBTYPE_I2, DBTYPE_I4, NULL, NULL, NULL);
     ok(hr == E_INVALIDARG, "got 0x%08x\n", hr);
 
+    /* size doesn't include string size */
+    str = SysAllocStringLen(NULL, 10);
+    dst_len = 0;
+    hr = IDataConvert_GetConversionSize(convert, DBTYPE_BSTR, DBTYPE_VARIANT, NULL, &dst_len, str);
+    ok(hr == S_OK, "got 0x%08x\n", hr);
+    ok(dst_len == sizeof(VARIANT), "%ld\n", dst_len);
+    SysFreeString(str);
+
+    IDataConvert_Release(convert);
+}
+
+static void test_converttovar(void)
+{
+    static WCHAR strW[] = {'t','e','s','t',0};
+    IDataConvert *convert;
+    DBSTATUS dst_status;
+    DBLENGTH dst_len;
+    VARIANT dst;
+    HRESULT hr;
+
+    hr = CoCreateInstance(&CLSID_OLEDB_CONVERSIONLIBRARY, NULL, CLSCTX_INPROC_SERVER, &IID_IDataConvert, (void**)&convert);
+    if(FAILED(hr))
+    {
+        win_skip("Unable to load oledb conversion library\n");
+        return;
+    }
+
+    V_VT(&dst) = VT_EMPTY;
+    dst_len = 0;
+    hr = IDataConvert_DataConvert(convert, DBTYPE_WSTR, DBTYPE_VARIANT, sizeof(strW), &dst_len, strW, &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_BSTR, "got %d\n", V_VT(&dst));
+    ok(!lstrcmpW(V_BSTR(&dst), strW), "got %s\n", wine_dbgstr_w(V_BSTR(&dst)));
+    VariantClear(&dst);
+
     IDataConvert_Release(convert);
 }
 
@@ -2482,6 +2520,7 @@ START_TEST(convert)
     test_converttofiletime();
     test_converttocy();
     test_converttoui8();
+    test_converttovar();
     test_getconversionsize();
     OleUninitialize();
 }