Huw Davies : riched20/tests: Add some object identity tests.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: f81805507e182519a6347128c1f4c92077890e9e
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=f81805507e182519a6347128c1f4c92077890e9e

Author: Huw Davies <huw at codeweavers.com>
Date:   Wed Mar 31 12:23:05 2021 +0100

riched20/tests: Add some object identity tests.

Signed-off-by: Huw Davies <huw at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/riched20/tests/richole.c | 9 +++++++++
 dlls/riched20/tests/txtsrv.c  | 9 +++++++++
 2 files changed, 18 insertions(+)

diff --git a/dlls/riched20/tests/richole.c b/dlls/riched20/tests/richole.c
index 3cea9902620..e6329c5b1b6 100644
--- a/dlls/riched20/tests/richole.c
+++ b/dlls/riched20/tests/richole.c
@@ -149,6 +149,7 @@ static void test_Interfaces(void)
   LRESULT res;
   HWND w;
   ULONG refcount;
+  IUnknown *unk, *unk2;
 
   w = new_richedit(NULL);
   if (!w) {
@@ -180,6 +181,14 @@ static void test_Interfaces(void)
   hres = ITextDocument_GetSelection(txtDoc, &txtSel);
   ok(hres == S_OK, "got 0x%08x\n", hres);
 
+  hres = ITextDocument_QueryInterface(txtDoc, &IID_IUnknown, (void **)&unk);
+  ok(hres == S_OK, "got 0x%08x\n", hres);
+  hres = ITextSelection_QueryInterface(txtSel, &IID_IUnknown, (void **)&unk2);
+  ok(hres == S_OK, "got 0x%08x\n", hres);
+  ok(unk != unk2, "unknowns are the same\n");
+  IUnknown_Release(unk2);
+  IUnknown_Release(unk);
+
   EXPECT_REF(txtDoc, 4);
   EXPECT_REF(txtSel, 2);
 
diff --git a/dlls/riched20/tests/txtsrv.c b/dlls/riched20/tests/txtsrv.c
index 6834e38b7f5..fe27be26edb 100644
--- a/dlls/riched20/tests/txtsrv.c
+++ b/dlls/riched20/tests/txtsrv.c
@@ -917,6 +917,7 @@ static void test_QueryInterface(void)
     IRichEditOle *reole, *txtsrv_reole;
     ITextDocument *txtdoc, *txtsrv_txtdoc;
     ITextDocument2Old *txtdoc2old, *txtsrv_txtdoc2old;
+    IUnknown *unk, *unk2;
     ULONG refcount;
 
     if(!init_texthost(&txtserv, &host))
@@ -933,6 +934,14 @@ static void test_QueryInterface(void)
     refcount = get_refcount((IUnknown *)txtsrv_reole);
     ok(refcount == 2, "got wrong ref count: %d\n", refcount);
 
+    hres = ITextServices_QueryInterface( txtserv, &IID_IUnknown, (void **)&unk );
+    ok( hres == S_OK, "got 0x%08x\n", hres );
+    hres = IRichEditOle_QueryInterface( txtsrv_reole, &IID_IUnknown, (void **)&unk2 );
+    ok( hres == S_OK, "got 0x%08x\n", hres );
+    ok( unk == unk2, "unknowns differ\n" );
+    IUnknown_Release( unk2 );
+    IUnknown_Release( unk );
+
     hres = IRichEditOle_QueryInterface(txtsrv_reole, &IID_ITextDocument, (void **)&txtdoc);
     ok(hres == S_OK, "IRichEditOle_QueryInterface: 0x%08x\n", hres);
     refcount = get_refcount((IUnknown *)txtserv);