public void MeasurePerformance()
{
int iterations = 1000;
long reflectionBased = 0;
long stronglyTyped = 0;
BuilderBase <BuilderStage> builder = new BuilderBase <BuilderStage>();
builder.Strategies.AddNew <SingletonStrategy>(BuilderStage.PreCreation);
builder.Strategies.AddNew <CreationStrategy>(BuilderStage.Creation);
builder.Policies.SetDefault <ICreationPolicy>(new DefaultCreationPolicy());
Locator locator = new Locator();
IService service = new Service();
IFoo foo = new Foo();
locator.Add(new DependencyResolutionLocatorKey(typeof(IService), null), service);
locator.Add(new DependencyResolutionLocatorKey(typeof(IFoo), null), foo);
// Build once for warmup
builder.BuildUp <MockWithCtorDependencies>(locator, null, null);
Stopwatch watch = Stopwatch.StartNew();
for (int i = 0; i < iterations; i++)
{
builder.BuildUp <MockWithCtorDependencies>(locator, null, null);
}
watch.Stop();
reflectionBased = watch.ElapsedTicks / iterations;
// Build once for warmup
PolicyList policies = new PolicyList();
policies.Set <ICreationPolicy>(new MockWithCtorDependenciesPolicy(), typeof(MockWithCtorDependencies), null);
builder.BuildUp <MockWithCtorDependencies>(locator, null, null, policies);
watch = Stopwatch.StartNew();
for (int i = 0; i < iterations; i++)
{
builder.BuildUp <MockWithCtorDependencies>(locator, null, null, policies);
}
watch.Stop();
stronglyTyped = watch.ElapsedTicks / iterations;
Console.WriteLine("Reflection: {0}\r\nStrongTyped: {1}\r\nTool {2}% the time of the reflection approach.",
reflectionBased, stronglyTyped, stronglyTyped * 100 / reflectionBased);
}
public void CanInjectStronglyTypedConstructor()
{
BuilderBase <BuilderStage> builder = new BuilderBase <BuilderStage>();
builder.Strategies.AddNew <SingletonStrategy>(BuilderStage.PreCreation);
builder.Strategies.AddNew <CreationStrategy>(BuilderStage.Creation);
builder.Policies.SetDefault <ICreationPolicy>(new DefaultCreationPolicy());
Locator locator = new Locator();
IService service = new Service();
IFoo foo = new Foo();
locator.Add(new DependencyResolutionLocatorKey(typeof(IService), null), service);
locator.Add(new DependencyResolutionLocatorKey(typeof(IFoo), null), foo);
PolicyList policies = new PolicyList();
policies.Set <ICreationPolicy>(new MockWithCtorDependenciesPolicy(), typeof(MockWithCtorDependencies), null);
MockWithCtorDependencies mock = builder.BuildUp <MockWithCtorDependencies>(locator, null, null, policies);
Assert.IsNotNull(mock);
Assert.AreSame(service, mock.service);
Assert.AreSame(foo, mock.foo);
}
public void RunningABuilderBaseWithNoStrategiesThrows()
{
IBuilder <BuilderStage> builder = new BuilderBase <BuilderStage>();
Locator locator = CreateLocator();
builder.BuildUp <Object>(locator, null, null);
}
public void BuildUpWithNoLocatorDoesNotThrow()
{
IBuilder <BuilderStage> builder = new BuilderBase <BuilderStage>();
Locator locator = null;
MockStrategy strategy = new MockStrategy();
builder.Strategies.Add(strategy, BuilderStage.PreCreation);
builder.BuildUp <object>(locator, null, null);
}
public void AddingStrategyByAnyStageRunsItDuringBuild()
{
IBuilder <BuilderStage> builder = new BuilderBase <BuilderStage>();
Locator locator = CreateLocator();
MockStrategy strategy = new MockStrategy();
builder.Strategies.Add(strategy, BuilderStage.PreCreation);
builder.BuildUp <object>(locator, null, null);
Assert.IsTrue(strategy.BuildWasRun);
}
public void StrategyStagesRunInProperOrder()
{
IBuilder <BuilderStage> builder = new BuilderBase <BuilderStage>();
Locator locator = CreateLocator();
MockStrategy strategy = new MockStrategy();
builder.Strategies.Add(new MockStrategy("Creation "), BuilderStage.Creation);
builder.Strategies.Add(new MockStrategy("PostInitialization "), BuilderStage.PostInitialization);
builder.Strategies.Add(new MockStrategy("PreCreation "), BuilderStage.PreCreation);
builder.Strategies.Add(new MockStrategy("Initialization "), BuilderStage.Initialization);
string s = builder.BuildUp <string>(locator, null, null);
Assert.AreEqual("PreCreation Creation Initialization PostInitialization ", s);
}
public void LCGInjectionIsFaster()
{
Locator locator = new Locator();
BuilderBase <BuilderStage> builder = new BuilderBase <BuilderStage>();
builder.Strategies.AddNew <ConstructorReflectionStrategy>(BuilderStage.PreCreation);
builder.Strategies.AddNew <CreationStrategy>(BuilderStage.Creation);
builder.Strategies.AddNew <PropertySetterStrategy>(BuilderStage.Initialization);
PropertySetterPolicy policy = new PropertySetterPolicy();
policy.Properties.Add("B", new PropertySetterInfo("B", new CreationParameter(typeof(Bar))));
builder.Policies.Set <IPropertySetterPolicy>(policy, typeof(Foo), null);
long ticks = 0;
for (int i = 0; i < iterations; i++)
{
Stopwatch watch = new Stopwatch();
watch.Start();
Foo a = builder.BuildUp <Foo>(locator, null, null);
Assert.IsNotNull(a.B);
watch.Stop();
if (i % 100 == 0)
{
GC.Collect();
}
ticks += watch.ElapsedTicks;
}
long avg = ticks / iterations;
locator = new Locator();
builder = new BuilderBase <BuilderStage>();
builder.Strategies.AddNew <ConstructorReflectionStrategy>(BuilderStage.PreCreation);
builder.Strategies.AddNew <CreationStrategy>(BuilderStage.Creation);
builder.Strategies.AddNew <PropertySetterStrategy>(BuilderStage.Initialization);
policy = new PropertySetterPolicy();
policy.Properties.Add("B", new FastPropertySetterInfo("B", new CreationParameter(typeof(Bar))));
builder.Policies.Set <IPropertySetterPolicy>(policy, typeof(Foo), null);
ticks = 0;
for (int i = 0; i < iterations; i++)
{
Stopwatch watch = new Stopwatch();
watch.Start();
Foo a = builder.BuildUp <Foo>(locator, null, null);
Assert.IsNotNull(a.B);
watch.Stop();
if (i % 100 == 0)
{
GC.Collect();
}
ticks += watch.ElapsedTicks;
}
long avg2 = ticks / iterations;
Console.WriteLine("{0} vs {1}", avg, avg2);
Assert.IsTrue(avg2 < avg);
}
/// <summary>
/// Builds an anonymous, non-singleton, non-lifetime managed object of type
/// <typeparamref name="TTypeToBuild"/>.
/// </summary>
/// <typeparam name="TTypeToBuild">The type of the object to build.</typeparam>
/// <returns></returns>
public TTypeToBuild BuildUp <TTypeToBuild>()
{
return(builder.BuildUp <TTypeToBuild>(locator, null, null));
}