public void GivenBuiltProxyWithTarget_WhenMemberIsCalled_ThenMemberIsIntercepted()
{
var subjectBuilder = new DynamicProxyBuilder();
// Given
var cTarget = new ClassC {
CP1 = 5
};
var aInterceptor = new InterceptorA();
var bInterceptor = new InterceptorB();
IClassC proxy = subjectBuilder
.ForInterface <IClassC>()
.WithTarget(cTarget)
.AddInterceptors(aInterceptor, bInterceptor)
.Build();
// When
int aValue = 0;
proxy.CMethod(() => aValue = 10);
var ret1_CP1 = proxy.CP1;
proxy.CP1 = 7;
var ret2_CP1 = proxy.CP1;
// Then
Assert.IsTrue(ProxyUtil.IsProxy(proxy), "object is not a proxy");
Assert.AreEqual(4, aInterceptor.InterceptReceivedCall);
Assert.AreEqual(4, bInterceptor.InterceptReceivedCall);
Assert.AreEqual(10, aValue);
Assert.AreEqual(5, ret1_CP1);
Assert.AreEqual(7, ret2_CP1);
}
public void GivenBuiltProxyWithTargetInterface_WhenMemberIsCalled_ThenMemberIsIntercepted()
{
var subjectBuilder = new DynamicProxyBuilder();
// Given
var cTarget1 = new ClassC { CP1 = 5 };
var cTarget2 = new ClassC { CP1 = 15 };
var interceptor1 = new Inteceptor1();
IClassC proxy = subjectBuilder
.ForInterface<IClassC>()
.WithTargetInterface(cTarget1)
.AddInterceptor(interceptor1)
.Build();
// When
interceptor1.ChangeProxyTarget(cTarget2);
interceptor1.ChangeInvocationTarget(cTarget2);
int aValue = 0;
proxy.CMethod(() => aValue = 10);
var ret1_CP1 = proxy.CP1;
proxy.CP1 = 17;
var ret2_CP1 = proxy.CP1;
// Then
Assert.IsTrue(ProxyUtil.IsProxy(proxy), "object is not a proxy");
Assert.AreEqual(4, interceptor1.InterceptReceivedCall);
Assert.AreEqual(10, aValue);
Assert.AreEqual(15, ret1_CP1);
Assert.AreEqual(17, ret2_CP1);
}
public void GivenBuiltProxyWithoutTarget_WhenMemberIsCalled_ThenMemberIsIntercepted()
{
var subjectBuilder = new DynamicProxyBuilder();
// Given
var testInterceptor1 = new TestInterceptor3(() => 1);
var testInterceptor2 = new TestInterceptor4(() => 2);
IClassC proxy = subjectBuilder
.ForInterface <IClassC>()
.WithoutTraget()
.AddInterceptors(testInterceptor1, testInterceptor2)
.Build();
// When
int aValue = 0;
proxy.CMethod(() => aValue = 10); // the test method does have target and action is not called
var retValue = proxy.CP1; // the first interceptor in the chain determine the return value
// Then
Assert.IsTrue(ProxyUtil.IsProxy(proxy), "object is not a proxy");
Assert.AreEqual(2, testInterceptor1.InterceptReceivedCall);
Assert.AreEqual(2, testInterceptor2.InterceptReceivedCall);
Assert.AreEqual(0, aValue);
Assert.AreEqual(1, retValue);
}