public void CallProperty()
{
// Given
var target = new Mock <IDummyTarget>(MockBehavior.Loose);
target.Setup(e => e.Database).Returns("mydb");
target.Setup(e => e.Container).Returns("mycontainer");
var activity = new Mock <IActivity>(MockBehavior.Loose);
var activitySource = new Mock <IActivitySource>(MockBehavior.Loose);
activitySource
.Setup(e => e.StartActivity(
It.IsAny <string>(),
It.IsAny <ActivityKind>(),
It.IsAny <ActivityContext>(),
It.IsAny <ActivityTagsCollection>(),
It.IsAny <IEnumerable <ActivityLink> >(),
It.IsAny <DateTimeOffset>()))
.Returns(activity.Object);
var options = new OpenTelemetryInterceptorOptions();
var builder = new OpenTelemetryInterceptorBuilder()
.WithActivitySource(activitySource.Object)
.WithActivityKind(ActivityKind.Consumer)
.WithTypeName("CustomType")
.WithOptions(options)
.TagWith("common.tag", "common value")
.TagTarget <IDummyTarget>(t => new { t.Database, t.Container })
.TagParameter <string>("arg1", arg1 => new { Arg1 = arg1 })
.TagResult <int>(result => new { Result = result })
.TagError <FormatException>(e => new { Message = e.Message });
var interceptor = builder.Build();
var intercepted = interceptor.Intercept(target.Object);
// When
var result = intercepted.Database;
// Then
result.Should().Be("mydb");
target.Verify(e => e.Database, Times.Once);
activitySource.Verify(
e => e.StartActivity(
It.IsAny <string>(),
It.IsAny <ActivityKind>(),
It.IsAny <ActivityContext>(),
It.IsAny <ActivityTagsCollection>(),
It.IsAny <IEnumerable <ActivityLink> >(),
It.IsAny <DateTimeOffset>()),
Times.Never);
activity.Verify(
e => e.SetTag(It.IsAny <string>(), It.IsAny <object>()),
Times.Never);
activity.Verify(
e => e.Stop(),
Times.Never);
}
public async Task CallValueTaskMethod()
{
// Given
var target = new Mock <IDummyTarget>(MockBehavior.Loose);
target.Setup(e => e.Database).Returns("mydb");
target.Setup(e => e.Container).Returns("mycontainer");
target
.Setup(e => e.ValueTaskMethod(It.IsAny <string>()))
.Returns(ValueTask.FromResult(42));
var activity = new Mock <IActivity>(MockBehavior.Loose);
var activitySource = new Mock <IActivitySource>(MockBehavior.Loose);
activitySource
.Setup(e => e.StartActivity(
It.IsAny <string>(),
It.IsAny <ActivityKind>(),
It.IsAny <ActivityContext>(),
It.IsAny <ActivityTagsCollection>(),
It.IsAny <IEnumerable <ActivityLink> >(),
It.IsAny <DateTimeOffset>()))
.Returns(activity.Object);
var options = new OpenTelemetryInterceptorOptions();
var builder = new OpenTelemetryInterceptorBuilder()
.WithActivitySource(activitySource.Object)
.WithActivityKind(ActivityKind.Producer)
.WithTypeName("CustomType")
.WithOptions(options)
.TagWith("common.tag", "common value")
.TagTarget <IDummyTarget>(t => new { t.Database, t.Container })
.TagParameter <string>("arg1", arg1 => new { Arg1 = arg1 })
.TagResult <int>(result => new { Result = result })
.TagError <FormatException>(e => new { Message = e.Message });
var interceptor = builder.Build();
var intercepted = interceptor.Intercept(target.Object);
// When
var result = await intercepted.ValueTaskMethod("value1");
// Then
result.Should().Be(42);
target.Verify(e => e.ValueTaskMethod("value1"), Times.Once);
activitySource.Verify(
e => e.StartActivity(
"CustomType.ValueTaskMethod",
ActivityKind.Producer,
It.IsAny <ActivityContext>(),
It.Is <ActivityTagsCollection>(tags =>
tags.Count == 4 &&
tags["common.tag"] == "common value" &&
tags["Database"] == "mydb" &&
tags["Container"] == "mycontainer" &&
tags["Arg1"] == "value1"),
null,
It.IsAny <DateTimeOffset>()),
Times.Once);
activity.Verify(
e => e.SetTag("Result", 42),
Times.Once);
activity.Verify(
e => e.Stop(),
Times.Once);
}
public void CallVoidMethodThrow()
{
// Given
var target = new Mock <IDummyTarget>(MockBehavior.Loose);
target.Setup(e => e.Database).Returns("mydb");
target.Setup(e => e.Container).Returns("mycontainer");
target
.Setup(e => e.VoidMethod(It.IsAny <string>()))
.Throws(new FormatException("Oops"));
var activity = new Mock <IActivity>(MockBehavior.Loose);
var activitySource = new Mock <IActivitySource>(MockBehavior.Loose);
activitySource
.Setup(e => e.StartActivity(
It.IsAny <string>(),
It.IsAny <ActivityKind>(),
It.IsAny <ActivityContext>(),
It.IsAny <ActivityTagsCollection>(),
It.IsAny <IEnumerable <ActivityLink> >(),
It.IsAny <DateTimeOffset>()))
.Returns(activity.Object);
var options = new OpenTelemetryInterceptorOptions();
var builder = new OpenTelemetryInterceptorBuilder()
.WithActivitySource(activitySource.Object)
.WithActivityKind(ActivityKind.Consumer)
.WithTypeName("CustomType")
.WithOptions(options)
.TagWith("common.tag", "common value")
.TagTarget <IDummyTarget>(t => new { t.Database, t.Container })
.TagParameter <string>("arg1", arg1 => new { Arg1 = arg1 })
.TagResult <int>(result => new { Result = result })
.TagError <FormatException>(e => new { Message = e.Message });
var interceptor = builder.Build();
var intercepted = interceptor.Intercept(target.Object);
// When
Action action = () => intercepted.VoidMethod("value1");
// Then
action.Should().Throw <FormatException>();
target.Verify(e => e.VoidMethod("value1"), Times.Once);
activitySource.Verify(
e => e.StartActivity(
"CustomType.VoidMethod",
ActivityKind.Consumer,
It.IsAny <ActivityContext>(),
It.Is <ActivityTagsCollection>(tags =>
tags.Count == 4 &&
tags["common.tag"] == "common value" &&
tags["Database"] == "mydb" &&
tags["Container"] == "mycontainer" &&
tags["Arg1"] == "value1"),
null,
It.IsAny <DateTimeOffset>()),
Times.Once);
activity.Verify(
e => e.SetTag(It.IsAny <string>(), It.IsAny <object>()),
Times.Exactly(3));
activity.Verify(
e => e.SetTag("Message", "Oops"),
Times.Once);
activity.Verify(
e => e.SetTag("otel.status_code", 500),
Times.Once);
activity.Verify(
e => e.SetTag("error", true),
Times.Once);
activity.Verify(
e => e.Stop(),
Times.Once);
}