public void UpdateMethodTest_Truthy()
{
TestEntity dummy = new TestEntity();
_fakeCollection.Update(dummy).Returns(true);
_fakeDbWrapper.Execute <TestEntity>(Arg.Any <string>(), Arg.Any <string>(), Arg.Any <Func <ICollectionWrapper <TestEntity>, bool> >())
.Returns(x => ((Func <ICollectionWrapper <TestEntity>, bool>)x[2]).Invoke(_fakeCollection));
bool result = _sut.Update(dummy);
Assert.IsTrue(result);
}