quartz: Add test for IReferenceClock.

dlls/quartz/tests/Makefile.in

@@ -8,7 +8,8 @@ EXTRALIBS = -lstrmiids
 
 CTESTS = \
 	filtergraph.c \
-	memallocator.c
+	memallocator.c \
+	referenceclock.c
 
 @MAKE_TEST_RULES@
 

dlls/quartz/tests/referenceclock.c

+/*
+ * Unit tests for Direct Show functions - IReferenceClock
+ *
+ * Copyright (C) 2007 Alex Villacís Lasso
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <assert.h>
+
+#define COBJMACROS
+
+#include "wine/test.h"
+#include "uuids.h"
+#include "dshow.h"
+#include "control.h"
+
+/* The following method expects a reference clock that will keep ticking for
+ * at least 5 seconds since its creation. This method assumes no other methods
+ * were called on the IReferenceClock interface since its creation.
+ */
+static void test_IReferenceClock_methods(const char * clockdesc, IReferenceClock * pClock)
+{
+    HRESULT hr;
+    REFERENCE_TIME time1;
+    REFERENCE_TIME time2;
+    signed long diff;
+
+    /* Test response from invalid (NULL) argument */
+    hr = IReferenceClock_GetTime(pClock, NULL);
+    ok (hr == E_POINTER, "%s - Expected E_POINTER (0x%08x), got 0x%08x\n", clockdesc, E_POINTER, hr);
+
+    /* Test response for valid value - try 1 */
+    /* TODO: test whether Windows actually returns S_FALSE in its first invocation */
+    time1 = (REFERENCE_TIME)0xdeadbeef;
+    hr = IReferenceClock_GetTime(pClock, &time1);
+    ok (hr == S_FALSE || hr == S_OK, "%s - Expected S_OK or S_FALSE, got 0x%08x\n", clockdesc, hr);
+    ok (time1 != 0xdeadbeef, "%s - value was NOT changed on return!\n", clockdesc);
+
+    /* Test response for valid value - try 2 */
+    time2 = (REFERENCE_TIME)0xdeadbeef;
+    hr = IReferenceClock_GetTime(pClock, &time2);
+    ok (hr == S_FALSE || hr == S_OK, "%s - Expected S_OK or S_FALSE, got 0x%08x\n", clockdesc, hr);
+    ok (time2 != 0xdeadbeef, "%s - value was NOT changed on return!\n", clockdesc);
+
+    /* In case the second invocation managed to return S_FALSE, MSDN says the
+       returned time is the same as the previous one. */
+    ok ((hr != S_FALSE || time1 == time2), "%s - returned S_FALSE, but values not equal!\n", clockdesc);
+
+    time1 = time2;
+    Sleep(1000); /* Sleep for at least 1 second */
+    hr = IReferenceClock_GetTime(pClock, &time2);
+    /* After a 1-second sleep, there is no excuse to get S_FALSE (see TODO above) */
+    todo_wine {
+    ok (hr == S_OK, "%s - Expected S_OK, got 0x%08x\n", clockdesc, hr);
+    }
+
+    /* FIXME: How much deviation should be allowed after a sleep? */
+    diff = time2 - time1;
+    ok (9980000 <= diff && diff <= 10020000, "%s - Expected difference around 10000000, got %lu\n", clockdesc, diff);
+
+}
+
+static void test_IReferenceClock_SystemClock(void)
+{
+    IReferenceClock * pReferenceClock;
+    HRESULT hr;
+
+    hr = CoCreateInstance(&CLSID_SystemClock, NULL, CLSCTX_INPROC_SERVER, &IID_IReferenceClock, (LPVOID*)&pReferenceClock);
+    ok(hr == S_OK, "Unable to create reference clock from system clock %x\n", hr);
+    if (hr == S_OK)
+    {
+	test_IReferenceClock_methods("SystemClock", pReferenceClock);
+	IReferenceClock_Release(pReferenceClock);
+    }
+}
+
+START_TEST(referenceclock)
+{
+    CoInitialize(NULL);
+
+    test_IReferenceClock_SystemClock();
+}