Improved TestSmallBuffers to test whether a small buffer was created as committed

Which is expected unless tight alignment is enabled.

Author: adam-sawicki-a

src/Tests.cpp

@@ -778,13 +778,9 @@ static void TestSmallBuffers(const TestContext& ctx)
         CHECK_HR(ctx.allocator->CreateResource(&allocDesc, &resDesc, D3D12_RESOURCE_STATE_COMMON,
             nullptr, &resWithAlloc.allocation, IID_PPV_ARGS(&resWithAlloc.resource)));
         CHECK_BOOL(resWithAlloc.allocation && resWithAlloc.allocation->GetResource());
-        // May or may not be committed, depending on the PREFER_SMALL_BUFFERS_COMMITTED
-        // and TIGHT_ALIGNMENT settings.
+        // Expected to be committed unless tight alignment is supported.
         const bool isCommitted = resWithAlloc.allocation->GetHeap() == NULL;
-        if (isCommitted)
-            wprintf(L"    Small buffer %llu B inside a custom pool was created as committed.\n", resDesc.Width);
-        else
-            wprintf(L"    Small buffer %llu B inside a custom pool was created as placed.\n", resDesc.Width);
+        CHECK_BOOL(isCommitted != (ctx.allocator->IsTightAlignmentSupported() != FALSE));
     }
 
     // Test 3: NEVER_ALLOCATE.