public void CreateWillNotTriggerHandlingUntilDeeperThanRecursionDepth()
{
// Fixture setup
var requestScenario = new Queue <int>(new[] { 1, 2, 1, 3, 1, 4 });
var builder = new DelegatingSpecimenBuilder();
builder.OnCreate = (r, c) => c.Resolve(requestScenario.Dequeue());
// By setting the depth to two we expect the handle to be triggered at the third "1" occurence.
var sut = new DelegatingRecursionGuard(builder, 2);
object recursiveRequest = null;
sut.OnHandleRecursiveRequest = obj => recursiveRequest = obj;
var container = new DelegatingSpecimenContext();
container.OnResolve = r => sut.Create(r, container);
// Exercise system
sut.Create(5, container);
// Verify outcome
// Check that recursion was actually detected as expected
Assert.Equal(1, recursiveRequest);
// Check that we passed the first recursion, but didn't go any further
Assert.Equal(4, requestScenario.Dequeue());
}
public void CreateWillTriggerHandlingOnSecondLevelRecursiveRequest()
{
// Fixture setup
object subRequest1 = Guid.NewGuid();
object subRequest2 = Guid.NewGuid();
var requestScenario = new Stack <object>(new [] { subRequest1, subRequest2, subRequest1 });
var builder = new DelegatingSpecimenBuilder();
builder.OnCreate = (r, c) => c.Resolve(requestScenario.Pop());
var sut = new DelegatingRecursionGuard(builder);
object recursiveRequest = null;
sut.OnHandleRecursiveRequest = obj => recursiveRequest = obj;
var container = new DelegatingSpecimenContext();
container.OnResolve = (r) => sut.Create(r, container);
// Exercise system
sut.Create(Guid.NewGuid(), container);
// Verify outcome
Assert.Same(subRequest1, recursiveRequest);
}
public void CreateWillNotTriggerHandlingOnSecondarySameRequestWhenDecoratedBuilderThrows()
{
// Fixture setup
var builder = new DelegatingSpecimenBuilder {
OnCreate = (r, c) =>
{
throw new PrivateExpectedException("The decorated builder always throws.");
}
};
var sut = new DelegatingRecursionGuard(builder)
{
OnHandleRecursiveRequest = o =>
{
throw new PrivatUnexpectedException("Recursive handling should not be triggered.");
}
};
var dummyContext = new DelegatingSpecimenContext();
var sameRequest = new object();
// Exercise system and verify outcome
Assert.Throws <PrivateExpectedException>(() => sut.Create(sameRequest, dummyContext));
Assert.Empty(sut.UnprotectedRecordedRequests);
Assert.Throws <PrivateExpectedException>(() => sut.Create(sameRequest, dummyContext));
Assert.Empty(sut.UnprotectedRecordedRequests);
}
public void CreateWillNotTriggerHandlingOnSubsequentSimilarRequests()
{
// Fixture setup
var sut = new DelegatingRecursionGuard(new DelegatingSpecimenBuilder());
bool handlingTriggered = false;
object request = Guid.NewGuid();
sut.OnHandleRecursiveRequest = obj => handlingTriggered = true;
// Exercise system
sut.Create(request, new DelegatingSpecimenContext());
sut.Create(request, new DelegatingSpecimenContext());
// Verify outcome
Assert.False(handlingTriggered);
}
public void CreateWillTriggerHandlingOnRecursiveRequests()
{
// Fixture setup
var builder = new DelegatingSpecimenBuilder();
builder.OnCreate = (r, c) => c.Resolve(r);
var sut = new DelegatingRecursionGuard(builder);
bool handlingTriggered = false;
sut.OnHandleRecursiveRequest = obj => handlingTriggered = true;
var container = new DelegatingSpecimenContext();
container.OnResolve = (r) => sut.Create(r, container);
// Exercise system
sut.Create(Guid.NewGuid(), container);
// Verify outcome
Assert.True(handlingTriggered);
}
public void CreateWillUseEqualityComparer()
{
// Fixture setup
var builder = new DelegatingSpecimenBuilder();
builder.OnCreate = (r, c) => c.Resolve(r);
bool comparerUsed = false;
var comparer = new DelegatingEqualityComparer {
OnEquals = (x, y) => comparerUsed = true
};
var sut = new DelegatingRecursionGuard(builder, comparer);
sut.OnHandleRecursiveRequest = (obj) => { return(null); };
var container = new DelegatingSpecimenContext();
container.OnResolve = (r) => sut.Create(r, container);
// Exercise system
sut.Create(Guid.NewGuid(), container);
// Verify outcome
Assert.True(comparerUsed);
}
public void CreateWillUseEqualityComparer()
{
// Fixture setup
var builder = new DelegatingSpecimenBuilder();
builder.OnCreate = (r, c) => c.Resolve(r);
bool comparerUsed = false;
var comparer = new DelegatingEqualityComparer { OnEquals = (x, y) => comparerUsed = true };
var sut = new DelegatingRecursionGuard(builder, comparer);
sut.OnHandleRecursiveRequest = (obj) => { return null; };
var container = new DelegatingSpecimenContext();
container.OnResolve = (r) => sut.Create(r, container);
// Exercise system
sut.Create(Guid.NewGuid(), container);
// Verify outcome
Assert.True(comparerUsed);
}
public void CreateWillNotTriggerHandlingUntilDeeperThanRecursionDepth()
{
// Fixture setup
var requestScenario = new Queue<int>(new[] { 1, 2, 1, 3, 1, 4 });
var builder = new DelegatingSpecimenBuilder();
builder.OnCreate = (r, c) => c.Resolve(requestScenario.Dequeue());
// By setting the depth to two we expect the handle to be triggered at the third "1" occurence.
var sut = new DelegatingRecursionGuard(builder, 2);
object recursiveRequest = null;
sut.OnHandleRecursiveRequest = obj => recursiveRequest = obj;
var container = new DelegatingSpecimenContext();
container.OnResolve = r => sut.Create(r, container);
// Exercise system
sut.Create(5, container);
// Verify outcome
// Check that recursion was actually detected as expected
Assert.Equal(1, recursiveRequest);
// Check that we passed the first recursion, but didn't go any further
Assert.Equal(4, requestScenario.Dequeue());
}
public void CreateWillTriggerHandlingOnSecondLevelRecursiveRequest()
{
// Fixture setup
object subRequest1 = Guid.NewGuid();
object subRequest2 = Guid.NewGuid();
var requestScenario = new Stack<object>(new [] { subRequest1, subRequest2, subRequest1 });
var builder = new DelegatingSpecimenBuilder();
builder.OnCreate = (r, c) => c.Resolve(requestScenario.Pop());
var sut = new DelegatingRecursionGuard(builder);
object recursiveRequest = null;
sut.OnHandleRecursiveRequest = obj => recursiveRequest = obj;
var container = new DelegatingSpecimenContext();
container.OnResolve = (r) => sut.Create(r, container);
// Exercise system
sut.Create(Guid.NewGuid(), container);
// Verify outcome
Assert.Same(subRequest1, recursiveRequest);
}
public void CreateWillTriggerHandlingOnRecursiveRequests()
{
// Fixture setup
var builder = new DelegatingSpecimenBuilder();
builder.OnCreate = (r, c) => c.Resolve(r);
var sut = new DelegatingRecursionGuard(builder);
bool handlingTriggered = false;
sut.OnHandleRecursiveRequest = obj => handlingTriggered = true;
var container = new DelegatingSpecimenContext();
container.OnResolve = (r) => sut.Create(r, container);
// Exercise system
sut.Create(Guid.NewGuid(), container);
// Verify outcome
Assert.True(handlingTriggered);
}
public void CreateWillNotTriggerHandlingOnSubsequentSimilarRequests()
{
// Fixture setup
var sut = new DelegatingRecursionGuard(new DelegatingSpecimenBuilder());
bool handlingTriggered = false;
object request = Guid.NewGuid();
sut.OnHandleRecursiveRequest = obj => handlingTriggered = true;
// Exercise system
sut.Create(request, new DelegatingSpecimenContext());
sut.Create(request, new DelegatingSpecimenContext());
// Verify outcome
Assert.False(handlingTriggered);
}
public void CreateWillNotTriggerHandlingOnSecondarySameRequestWhenDecoratedBuilderThrows()
{
// Fixture setup
var builder = new DelegatingSpecimenBuilder { OnCreate = (r, c) =>
{
throw new PrivateExpectedException("The decorated builder always throws.");
}};
var sut = new DelegatingRecursionGuard(builder) { OnHandleRecursiveRequest = o =>
{
throw new PrivatUnexpectedException("Recursive handling should not be triggered.");
}};
var dummyContext = new DelegatingSpecimenContext();
var sameRequest = new object();
// Exercise system and verify outcome
Assert.Throws<PrivateExpectedException>(() => sut.Create(sameRequest, dummyContext));
Assert.Empty(sut.UnprotectedRecordedRequests);
Assert.Throws<PrivateExpectedException>(() => sut.Create(sameRequest, dummyContext));
Assert.Empty(sut.UnprotectedRecordedRequests);
}