public void CanLockAndUnlockStore()
{
Guid guid = Guid.NewGuid();
double val;
using (var instance = new MFAttributes(0))
using (var waitHandle = new AutoResetEvent(false))
{
instance.LockStore();
try
{
instance.SetDouble(Guid.NewGuid(), 10);
ThreadPool.QueueUserWorkItem(o =>
{
waitHandle.Set();
instance.SetDouble(guid, 500);
waitHandle.Set();
});
waitHandle.WaitOne(); //wait for the threadpool the queue the user item
Thread.Sleep(2000); //give the threadpool some additional time to call instance.SetDouble
Assert.IsFalse(instance.TryGet(guid, out val), "Second thread could set the attribute while instance was locked.");
}
finally
{
instance.UnlockStore();
}
waitHandle.WaitOne();
}
}
public void CanSetAndGetValues()
{
var random = new Random();
using (var instance = new MFAttributes(0))
{
Guid guid = Guid.NewGuid();
instance.SetDouble(guid, 10d);
Assert.AreEqual(10d, instance.GetDouble(guid));
guid = Guid.NewGuid();
instance.SetGuid(guid, guid);
Assert.AreEqual(guid, instance.GetGuid(guid));
guid = Guid.NewGuid();
instance.SetString(guid, "Hello World");
Assert.AreEqual("Hello World", instance.GetString(guid));
guid = Guid.NewGuid();
instance.SetUINT32(guid, 10);
Assert.AreEqual(10, instance.GetUINT32(guid));
guid = Guid.NewGuid();
instance.SetUINT64(guid, 10L);
Assert.AreEqual(10L, instance.GetUINT64(guid));
guid = Guid.NewGuid();
var value = new PropertyVariant()
{
DataType = VarEnum.VT_UI4,
UIntValue = 10
};
instance.SetItem(guid, value);
Assert.AreEqual(value, instance.GetItem(guid));
guid = Guid.NewGuid();
byte[] inputBlob = new byte[100];
random.NextBytes(inputBlob);
instance.Set(guid, inputBlob);
CollectionAssert.AreEqual(inputBlob, instance.Get <byte[]>(guid));
guid = Guid.NewGuid();
TestStruct testStructValue = new TestStruct()
{
Field0 = Guid.NewGuid(),
Field1 = random.Next(),
Field2 = random.NextDouble() * random.Next(),
};
instance.Set(guid, testStructValue);
Assert.AreEqual(testStructValue, instance.Get <TestStruct>(guid));
}
}
public void CanDeleteItem()
{
double val;
using (var instance = new MFAttributes(0))
{
Guid guid = Guid.NewGuid();
instance.SetDouble(guid, 100);
Assert.AreEqual(100, instance.GetDouble(guid));
instance.DeleteItem(guid);
Assert.IsFalse(instance.TryGet(guid, out val), "Item got not deleted.");
}
}
public void CanGetItemByIndex()
{
using (var instance = new MFAttributes(0))
{
var guid = Guid.NewGuid();
instance.SetDouble(guid, 10);
Assert.AreEqual(10d, instance[0].GetValue());
Assert.AreEqual(10d, instance[guid]);
using (var instance0 = new MFAttributes(0))
{
instance.CopyAllItems(instance0);
Assert.AreEqual(10d, instance[0].GetValue());
Assert.AreEqual(10d, instance[guid]);
}
}
}
public void CanDeleteAllItems()
{
const int count = 20;
double val;
Random random = new Random();
using (var instance = new MFAttributes(0))
{
for (int i = 0; i < count; i++)
{
Guid guid = Guid.NewGuid();
val = random.NextDouble() * (i + 1);
instance.SetDouble(guid, val);
Assert.AreEqual(val, instance.GetDouble(guid));
}
Assert.AreEqual(count, instance.Count);
instance.DeleteAllItems();
Assert.AreEqual(0, instance.Count);
}
}