public void CannotSetValueToNull_WithinTransaction()
{
var value = new TransactionalGateway<SimpleObject>(new SimpleObject());
using (var ts = new TransactionScope())
{
Assert.Throws<ArgumentNullException>(() => value.Value = null);
}
}
public void ChangesAreFlushedIntoOriginalObjectOnTransactionCompletion()
{
var so = new SimpleObject();
ITransactional<SimpleObject> gw = new TransactionalGateway<SimpleObject>(so);
Guid newGuid = Guid.NewGuid();
using(var ts = new TransactionScope())
{
gw.Value.TestGuid = newGuid;
gw.Value.TestInt = 42;
gw.Value.TestString = "Hello, World!";
Assert.AreEqual(Guid.Empty, so.TestGuid);
Assert.AreEqual(0, so.TestInt);
Assert.AreEqual(null, so.TestString);
ts.Complete();
}
Assert.AreEqual(newGuid, so.TestGuid);
Assert.AreEqual(42, so.TestInt);
Assert.AreEqual("Hello, World!", so.TestString);
}
public void ChangesAreDiscardedOnTransactionRollback()
{
var so = new SimpleObject();
ITransactional<SimpleObject> gw = new TransactionalGateway<SimpleObject>(so);
using (var ts = new TransactionScope())
{
gw.Value.TestGuid = Guid.NewGuid();
gw.Value.TestInt = 42;
gw.Value.TestString = "Hello, World!";
}
Assert.AreEqual(Guid.Empty, so.TestGuid);
Assert.AreEqual(0, so.TestInt);
Assert.AreEqual(null, so.TestString);
}
public void CannotSetValueToNull_OutsideTransaction()
{
var value = new TransactionalGateway<SimpleObject>(new SimpleObject());
Assert.Throws<ArgumentNullException>(() => value.Value = null);
}
public void ChangesVisibleWithinTransaction()
{
var so = new SimpleObject();
ITransactional<SimpleObject> tso = new TransactionalGateway<SimpleObject>(so);
Guid newGuid = Guid.NewGuid();
using (var ts = new TransactionScope())
{
tso.Value.TestInt = 42;
tso.Value.TestGuid = newGuid;
tso.Value.TestString = "Hello, World!";
Assert.AreEqual(42, tso.Value.TestInt);
Assert.AreEqual(newGuid, tso.Value.TestGuid);
Assert.AreEqual("Hello, World!", tso.Value.TestString);
ts.Complete();
}
}
public void ChangesNotVisibleOutsideOfTransaction()
{
var so = new SimpleObject();
ITransactional<SimpleObject> gw = new TransactionalGateway<SimpleObject>(so);
Guid newGuid = Guid.NewGuid();
using (var ts = new TransactionScope())
{
gw.Value.TestInt = 42;
gw.Value.TestGuid = newGuid;
gw.Value.TestString = "Hello, World!";
using (var suppressScope = new TransactionScope(TransactionScopeOption.Suppress))
{
Assert.AreNotEqual(42, gw.Value.TestInt);
Assert.AreNotEqual(newGuid, gw.Value.TestGuid);
Assert.AreNotEqual("Hello, World!", gw.Value.TestString);
suppressScope.Complete();
}
ts.Complete();
}
}
public void CopiesInitalValueOnNewTransaction()
{
Guid newGuid = Guid.NewGuid();
var so = new SimpleObject
{
TestGuid = newGuid,
TestInt = 42,
TestString = "Hello, World!"
};
ITransactional<SimpleObject> gw = new TransactionalGateway<SimpleObject>(so);
using (var ts = new TransactionScope())
{
Assert.IsFalse(ReferenceEquals(so, gw.Value));
Assert.AreEqual(so.TestInt, gw.Value.TestInt);
Assert.AreEqual(so.TestGuid, gw.Value.TestGuid);
Assert.AreEqual(so.TestString, gw.Value.TestString);
ts.Complete();
}
}
public void InitialValue()
{
var so = new SimpleObject();
ITransactional<SimpleObject> gw = new TransactionalGateway<SimpleObject>(so);
Assert.IsNotNull(gw.Value);
Assert.IsTrue(ReferenceEquals(so, gw.Value));
}
public void WithoutTransaction_SettingValueOnlyCopiesData()
{
var so = new SimpleObject();
ITransactional<SimpleObject> gw = new TransactionalGateway<SimpleObject>(so);
Guid newGuid = Guid.NewGuid();
var currentValue = gw.Value;
gw.Value = new SimpleObject
{
TestGuid = newGuid,
TestInt = 42,
TestString = "Hello, World!"
};
Assert.IsTrue(ReferenceEquals(currentValue, gw.Value));
Assert.AreEqual(newGuid, currentValue.TestGuid);
Assert.AreEqual(42, currentValue.TestInt);
Assert.AreEqual("Hello, World!", currentValue.TestString);
}