public void DependencyHasPossibleLifestyleMismatch_NestedHybridSingletonToTransient2_ReportsMismatch()
{
// Arrange
Func <bool> selector = () => true;
var hybridWithDeeplyNestedTransient = Lifestyle.CreateHybrid(selector,
Lifestyle.Singleton,
Lifestyle.CreateHybrid(selector,
Lifestyle.Singleton,
Lifestyle.CreateHybrid(selector,
Lifestyle.Singleton,
Lifestyle.CreateHybrid(selector,
Lifestyle.Singleton,
Lifestyle.CreateHybrid(selector,
Lifestyle.Singleton,
Lifestyle.Transient)))));
var dependency =
CreateRelationship(parent: Lifestyle.Singleton, child: hybridWithDeeplyNestedTransient);
// Act
bool result = LifestyleMismatchChecker.HasPossibleLifestyleMismatch(dependency);
// Assert
Assert.IsTrue(result, "Since the hybrid lifestyle contains a transient lifestyle, this " +
"hybrid lifestyle should be considered to be a transient when evaluated on the child.");
}
public void DependencyHasPossibleLifestyleMismatch_SingletonToLifetimeWebRequest_ReportsMismatch()
{
// Arrange
var dependency = CreateRelationship(parent: Lifestyle.Singleton, child: Lifestyles.WebRequest);
// Act
bool result = LifestyleMismatchChecker.HasPossibleLifestyleMismatch(dependency);
// Assert
Assert.IsTrue(result);
}
public void DependencyHasPossibleLifestyleMismatch_SingletonToSingleton_DoesNotReportAMismatch()
{
// Arrange
var dependency = CreateRelationship(parent: Lifestyle.Singleton, child: Lifestyle.Singleton);
// Act
bool result = LifestyleMismatchChecker.HasPossibleLifestyleMismatch(dependency);
// Assert
Assert.IsFalse(result, "Every service can safely depend on a singleton.");
}
public void DependencyHasPossibleLifestyleMismatch_SingletonToUnknown_ReportsMismatch()
{
// Arrange
var dependency = CreateRelationship(parent: Lifestyle.Singleton, child: Lifestyle.Unknown);
// Act
bool result = LifestyleMismatchChecker.HasPossibleLifestyleMismatch(dependency);
// Assert
Assert.IsTrue(result, "The unknown lifestyle will likely be shorter than singleton.");
}
public void DependencyHasPossibleLifestyleMismatch_TransientToTransient_DoesNotReportAMismatch()
{
// Arrange
var dependency = CreateRelationship(parent: Lifestyle.Transient, child: Lifestyle.Transient);
// Act
bool result = LifestyleMismatchChecker.HasPossibleLifestyleMismatch(dependency);
// Assert
Assert.IsFalse(result);
}
public void DependencyHasPossibleLifestyleMismatch_UnknownToTransient_ReportsMismatch()
{
// Arrange
var dependency = CreateRelationship(parent: Lifestyle.Unknown, child: Lifestyle.Transient);
// Act
bool result = LifestyleMismatchChecker.HasPossibleLifestyleMismatch(dependency);
// Assert
Assert.IsTrue(result, "An unknown lifestyle will always be bigger than transient.");
}
public void DependencyHasPossibleLifestyleMismatch_TransientToUnknown_DoesNotReportAMismatch()
{
// Arrange
var dependency = CreateRelationship(parent: Lifestyle.Transient, child: Lifestyle.Unknown);
// Act
bool result = LifestyleMismatchChecker.HasPossibleLifestyleMismatch(dependency);
// Assert
Assert.IsFalse(result, "A transient service can safely depend on any other dependency.");
}
public void DependencyHasPossibleLifestyleMismatch_WebRequestToTransient_ReportsMismatch()
{
// Arrange
var dependency = CreateRelationship(parent: Lifestyles.WebRequest, child: Lifestyle.Transient);
// Act
bool result = LifestyleMismatchChecker.HasPossibleLifestyleMismatch(dependency);
// Assert
Assert.IsTrue(result, "Services can not depend on a dependency with a shorter lifestyle.");
}
public DiagnosticResult[] Analyze(IEnumerable <InstanceProducer> producers)
{
return((
from producer in producers
from relationship in producer.GetRelationships()
where LifestyleMismatchChecker.HasPossibleLifestyleMismatch(relationship)
select new PotentialLifestyleMismatchDiagnosticResult(
serviceType: producer.ServiceType,
description: BuildRelationshipDescription(relationship),
relationship: relationship))
.ToArray());
}
public void DependencyHasPossibleLifestyleMismatch_UnknownToLifetimeScope_ReportsMismatch()
{
// Arrange
var dependency = CreateRelationship(parent: Lifestyle.Unknown, child: Lifestyles.LifetimeScope);
// Act
bool result = LifestyleMismatchChecker.HasPossibleLifestyleMismatch(dependency);
// Assert
Assert.IsTrue(result, "An unknown lifestyle can not safely depend on a lifestyle that is " +
"shorter than singleton, since this unknown lifestyle could act like a singleton.");
}
public void DependencyHasPossibleLifestyleMismatch_LifetimeScopeToUnknown_ReportsMismatch()
{
// Arrange
var dependency = CreateRelationship(parent: Lifestyles.LifetimeScope, child: Lifestyle.Unknown);
// Act
bool result = LifestyleMismatchChecker.HasPossibleLifestyleMismatch(dependency);
// Assert
Assert.IsTrue(result, "A lifestyle longer than transient can not safely depend on an unknown " +
"lifestyle, since this unknown lifestyle could act like a transient.");
}
public void DependencyHasPossibleLifestyleMismatch_ShortHybridToLongHybrid_ReportsMismatch()
{
// Arrange
var parentHybrid = Lifestyle.CreateHybrid(() => true, Lifestyle.Singleton, Lifestyle.Singleton);
var childHybrid = Lifestyle.CreateHybrid(() => true, Lifestyle.Singleton, Lifestyle.Transient);
var dependency = CreateRelationship(parent: parentHybrid, child: childHybrid);
// Act
bool result = LifestyleMismatchChecker.HasPossibleLifestyleMismatch(dependency);
// Assert
Assert.IsTrue(result, "Both lifestyles of the parent are longer than those of the child.");
}
public void DependencyHasPossibleLifestyleMismatch_HybridToTheSameHybridInstance_DoesNotReportAMismatch()
{
// Arrange
var hybrid = Lifestyle.CreateHybrid(() => true, Lifestyle.Transient, Lifestyle.Singleton);
var dependency = CreateRelationship(parent: hybrid, child: hybrid);
// Act
bool result = LifestyleMismatchChecker.HasPossibleLifestyleMismatch(dependency);
// Assert
Assert.IsFalse(result, "Since the both the parent and child have exactly the same lifestyle, " +
"there is expected to be no mismatch.");
}
public DiagnosticResult[] Analyze(IEnumerable <InstanceProducer> producers)
{
return((
from producer in producers
where producer.Registration.ShouldNotBeSuppressed(this.DiagnosticType)
from relationship in producer.GetRelationships()
let container = producer.Registration.Container
where LifestyleMismatchChecker.HasPossibleLifestyleMismatch(container, relationship)
select new PotentialLifestyleMismatchDiagnosticResult(
serviceType: producer.ServiceType,
description: BuildRelationshipDescription(relationship),
relationship: relationship))
.ToArray());
}
private static bool HasPossibleLifestyleMismatch(KnownRelationship dependency)
{
return(LifestyleMismatchChecker.HasPossibleLifestyleMismatch(new Container(), dependency));
}