devenum: Implement IMoniker::IsEqual().

dlls/devenum/mediacatenum.c

@@ -528,9 +528,36 @@ static HRESULT WINAPI DEVENUM_IMediaCatMoniker_Enum(IMoniker *iface, BOOL fForwa
 
 static HRESULT WINAPI DEVENUM_IMediaCatMoniker_IsEqual(IMoniker *iface, IMoniker *pmkOtherMoniker)
 {
-    FIXME("(%p)->(%p): stub\n", iface, pmkOtherMoniker);
+    CLSID clsid;
+    LPOLESTR this_name, other_name;
+    IBindCtx *bind;
+    HRESULT res;
 
-    return E_NOTIMPL;
+    TRACE("(%p)->(%p)\n", iface, pmkOtherMoniker);
+
+    if (!pmkOtherMoniker)
+        return E_INVALIDARG;
+
+    IMoniker_GetClassID(pmkOtherMoniker, &clsid);
+    if (!IsEqualCLSID(&clsid, &CLSID_CDeviceMoniker))
+        return S_FALSE;
+
+    res = CreateBindCtx(0, &bind);
+    if (FAILED(res))
+       return res;
+
+    res = S_FALSE;
+    if (SUCCEEDED(IMoniker_GetDisplayName(iface, bind, NULL, &this_name)) &&
+        SUCCEEDED(IMoniker_GetDisplayName(pmkOtherMoniker, bind, NULL, &other_name)))
+    {
+        int result = lstrcmpiW(this_name, other_name);
+        CoTaskMemFree(this_name);
+        CoTaskMemFree(other_name);
+        if (!result)
+            res = S_OK;
+    }
+    IBindCtx_Release(bind);
+    return res;
 }
 
 static HRESULT WINAPI DEVENUM_IMediaCatMoniker_Hash(IMoniker *iface, DWORD *pdwHash)

dlls/devenum/tests/devenum.c

@@ -135,6 +135,94 @@ static void test_devenum(IBindCtx *bind_ctx)
     if(sizeof(void*) == 4)
         ok(have_mrle, "mrle codec not found\n");
 }
+static void test_moniker_isequal(void)
+{
+    HRESULT res;
+    ICreateDevEnum *create_devenum = NULL;
+    IEnumMoniker *enum_moniker0 = NULL, *enum_moniker1 = NULL;
+    IMoniker *moniker0 = NULL, *moniker1 = NULL;
+
+    res = CoCreateInstance(&CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC,
+                           &IID_ICreateDevEnum, (LPVOID*)&create_devenum);
+    if (FAILED(res))
+    {
+         skip("Cannot create SystemDeviceEnum object (%x)\n", res);
+         return;
+    }
+
+    res = ICreateDevEnum_CreateClassEnumerator(create_devenum, &CLSID_LegacyAmFilterCategory, &enum_moniker0, 0);
+    ok(SUCCEEDED(res), "Cannot create enum moniker (res = %x)\n", res);
+    if (SUCCEEDED(res))
+    {
+        if (SUCCEEDED(IEnumMoniker_Next(enum_moniker0, 1, &moniker0, NULL)) &&
+            SUCCEEDED(IEnumMoniker_Next(enum_moniker0, 1, &moniker1, NULL)))
+        {
+            res = IMoniker_IsEqual(moniker0, moniker1);
+            ok(res == S_FALSE, "IMoniker_IsEqual should fail (res = %x)\n", res);
+
+            res = IMoniker_IsEqual(moniker1, moniker0);
+            ok(res == S_FALSE, "IMoniker_IsEqual should fail (res = %x)\n", res);
+
+            IMoniker_Release(moniker0);
+            IMoniker_Release(moniker1);
+        }
+        else
+            skip("Cannot get moniker for testing.\n");
+    }
+    IEnumMoniker_Release(enum_moniker0);
+
+    res = ICreateDevEnum_CreateClassEnumerator(create_devenum, &CLSID_LegacyAmFilterCategory, &enum_moniker0, 0);
+    ok(SUCCEEDED(res), "Cannot create enum moniker (res = %x)\n", res);
+    res = ICreateDevEnum_CreateClassEnumerator(create_devenum, &CLSID_AudioRendererCategory, &enum_moniker1, 0);
+    ok(SUCCEEDED(res), "Cannot create enum moniker (res = %x)\n", res);
+    if (SUCCEEDED(res))
+    {
+        if (SUCCEEDED(IEnumMoniker_Next(enum_moniker0, 1, &moniker0, NULL)) &&
+            SUCCEEDED(IEnumMoniker_Next(enum_moniker1, 1, &moniker1, NULL)))
+        {
+            res = IMoniker_IsEqual(moniker0, moniker1);
+            ok(res == S_FALSE, "IMoniker_IsEqual should failed (res = %x)\n", res);
+
+            res = IMoniker_IsEqual(moniker1, moniker0);
+            ok(res == S_FALSE, "IMoniker_IsEqual should failed (res = %x)\n", res);
+
+            IMoniker_Release(moniker0);
+            IMoniker_Release(moniker1);
+        }
+        else
+            skip("Cannot get moniker for testing.\n");
+    }
+    IEnumMoniker_Release(enum_moniker0);
+    IEnumMoniker_Release(enum_moniker1);
+
+    res = ICreateDevEnum_CreateClassEnumerator(create_devenum, &CLSID_LegacyAmFilterCategory, &enum_moniker0, 0);
+    ok(SUCCEEDED(res), "Cannot create enum moniker (res = %x)\n", res);
+    res = ICreateDevEnum_CreateClassEnumerator(create_devenum, &CLSID_LegacyAmFilterCategory, &enum_moniker1, 0);
+    ok(SUCCEEDED(res), "Cannot create enum moniker (res = %x)\n", res);
+    if (SUCCEEDED(res))
+    {
+         if (SUCCEEDED(IEnumMoniker_Next(enum_moniker0, 1, &moniker0, NULL)) &&
+             SUCCEEDED(IEnumMoniker_Next(enum_moniker1, 1, &moniker1, NULL)))
+        {
+            res = IMoniker_IsEqual(moniker0, moniker1);
+            ok(res == S_OK, "IMoniker_IsEqual failed (res = %x)\n", res);
+
+            res = IMoniker_IsEqual(moniker1, moniker0);
+            ok(res == S_OK, "IMoniker_IsEqual failed (res = %x)\n", res);
+
+            IMoniker_Release(moniker0);
+            IMoniker_Release(moniker1);
+        }
+        else
+            skip("Cannot get moniker for testing.\n");
+    }
+    IEnumMoniker_Release(enum_moniker0);
+    IEnumMoniker_Release(enum_moniker1);
+
+    ICreateDevEnum_Release(create_devenum);
+
+    return;
+}
 
 /* CLSID_CDeviceMoniker */
 
@@ -155,5 +243,7 @@ START_TEST(devenum)
         IBindCtx_Release(bind_ctx);
     }
 
+    test_moniker_isequal();
+
     CoUninitialize();
 }