public void Missing_assemblies_do_not_cause_sensor_discovery_to_fail()
{
// force loading of the problem assembly. this assembly has a dependency which is deliberately not included in the project so that unprotected MEF usage will trigger a TypeLoadException. sensor discovery is intended to ignore this issue and swallow the exception.
var o = new ClassWithoutReferenceToMissingAssembly();
DiagnosticSensor.Discover().Count().Should().BeGreaterThan(0);
}
public void ReflectionTypeLoadException_due_to_missing_assembly_is_signalled_by_sensor_output()
{
// force loading of the problem assembly. this assembly has a dependency which is deliberately not included in the project so that unprotected MEF usage will trigger a TypeLoadException. sensor discovery is intended to ignore this issue and swallow the exception.
var o = new ClassWithoutReferenceToMissingAssembly();
dynamic reading = DiagnosticSensor.Discover()
.Values
.Select(s => s.Read())
.OfType <ReflectionTypeLoadException>()
.First();
var loaderException = ((IEnumerable <Exception>)reading.LoaderExceptions).Single();
loaderException.Message.Should().Contain("Could not load file or assembly 'MissingDependency, Version=1.0.0.0, Culture=neutral, PublicKeyToken=e9ed0c9abcf549e2' or one of its dependencies. The system cannot find the file specified.");
}