public void DiagnosticTracerRaisesEventsOnError()
{
var containerBuilder = new ContainerBuilder();
containerBuilder.Register <string>(ctxt => throw new InvalidOperationException());
var container = containerBuilder.Build();
var tracer = new DotDiagnosticTracer();
container.SubscribeToDiagnostics(tracer);
string lastOpResult = null;
tracer.OperationCompleted += (sender, args) =>
{
Assert.Same(tracer, sender);
lastOpResult = args.TraceContent;
};
try
{
container.Resolve <string>();
}
catch
{
}
Assert.Contains(nameof(InvalidOperationException), lastOpResult);
Assert.StartsWith("digraph G {", lastOpResult);
Assert.EndsWith("}", lastOpResult.Trim());
}
public void DiagnosticTracerDoesNotLeakMemory()
{
var containerBuilder = new ContainerBuilder();
containerBuilder.RegisterType <Implementor>().As <IService>();
containerBuilder.RegisterDecorator <Decorator, IService>();
var container = containerBuilder.Build();
var tracer = new DotDiagnosticTracer();
container.SubscribeToDiagnostics(tracer);
container.Resolve <IService>();
// The dictionary of tracked operations and
// graphs should be empty.
Assert.Equal(0, tracer.OperationsInProgress);
}
public DIConfig(string functionName)
{
var tracer = new DotDiagnosticTracer();
tracer.OperationCompleted += (sender, args) =>
{
// Writing the DOT trace to a file will let you render
// it to a graph with Graphviz later, but this is
// NOT A GOOD COPY/PASTE EXAMPLE. You'll want to do
// things in an async fashion with good error handling.
var path = Path.Combine(Path.GetTempPath(), $"{Guid.NewGuid()}.dot");
using var file = new StreamWriter(path);
file.WriteLine(args.TraceContent);
};
DependencyInjection.Initialize(builder =>
{
builder.RegisterType <Greeter>().As <IGreeter>();
}, functionName, c => c.SubscribeToDiagnostics(tracer));
}
public void LabelPosition()
{
using var container = BuildGraphContainer();
var tracer = new DotDiagnosticTracer();
string result = null;
tracer.OperationCompleted += (sender, args) =>
{
result = args.TraceContent;
};
container.SubscribeToDiagnostics(tracer);
using var scope = container.BeginLifetimeScope();
scope.Resolve <IHandler <string> >();
// Label should be at the top.
Assert.Contains("labelloc=t", result);
}
public void GeneratesComplexGraph()
{
using var container = BuildGraphContainer();
var tracer = new DotDiagnosticTracer();
string result = null;
tracer.OperationCompleted += (sender, args) =>
{
result = args.TraceContent;
_output.WriteLine(result);
};
container.SubscribeToDiagnostics(tracer);
using var scope = container.BeginLifetimeScope();
scope.Resolve <IHandler <string> >();
Assert.NotNull(result);
}
public void DiagnosticTracerHandlesDecorators()
{
var containerBuilder = new ContainerBuilder();
containerBuilder.RegisterType <Implementor>().As <IService>();
containerBuilder.RegisterDecorator <Decorator, IService>();
var container = containerBuilder.Build();
var tracer = new DotDiagnosticTracer();
container.SubscribeToDiagnostics(tracer);
string lastOpResult = null;
tracer.OperationCompleted += (sender, args) =>
{
Assert.Same(tracer, sender);
lastOpResult = args.TraceContent;
};
container.Resolve <IService>();
Assert.Contains("Decorator", lastOpResult);
}
public void TypeNamesArePrettyPrinted()
{
using var container = BuildGraphContainer();
var tracer = new DotDiagnosticTracer();
string result = null;
tracer.OperationCompleted += (sender, args) =>
{
result = args.TraceContent;
};
container.SubscribeToDiagnostics(tracer);
using var scope = container.BeginLifetimeScope();
scope.Resolve <IHandler <string> >();
// Label should be pretty-printed.
Assert.Contains("label=<Autofac.Diagnostics.DotGraph.Test.ComplexGraphTests.IHandler<string>", result);
// No raw type names.
Assert.DoesNotContain("`1", result);
Assert.DoesNotContain("Culture=neutral", result);
}
public void DiagnosticTracerRaisesEventsOnSuccess()
{
var containerBuilder = new ContainerBuilder();
containerBuilder.Register(ctxt => "Hello");
var container = containerBuilder.Build();
var tracer = new DotDiagnosticTracer();
container.SubscribeToDiagnostics(tracer);
string lastOpResult = null;
tracer.OperationCompleted += (sender, args) =>
{
Assert.Same(tracer, sender);
lastOpResult = args.TraceContent;
};
container.Resolve <string>();
Assert.Contains("λ:string", lastOpResult);
Assert.StartsWith("digraph G {", lastOpResult);
Assert.EndsWith("}", lastOpResult.Trim());
}
