public async Task Generate_EndToEnd()
{
// construct our TimerTrigger attribute ([TimerTrigger("00:00:02", RunOnStartup = true)])
Collection<ParameterDescriptor> parameters = new Collection<ParameterDescriptor>();
ParameterDescriptor parameter = new ParameterDescriptor("timerInfo", typeof(TimerInfo));
ConstructorInfo ctorInfo = typeof(TimerTriggerAttribute).GetConstructor(new Type[] { typeof(string) });
PropertyInfo runOnStartupProperty = typeof(TimerTriggerAttribute).GetProperty("RunOnStartup");
CustomAttributeBuilder attributeBuilder = new CustomAttributeBuilder(
ctorInfo,
new object[] { "00:00:02" },
new PropertyInfo[] { runOnStartupProperty },
new object[] { true });
parameter.CustomAttributes.Add(attributeBuilder);
parameters.Add(parameter);
// create the FunctionDefinition
FunctionMetadata metadata = new FunctionMetadata();
TestInvoker invoker = new TestInvoker();
FunctionDescriptor function = new FunctionDescriptor("TimerFunction", invoker, metadata, parameters);
Collection<FunctionDescriptor> functions = new Collection<FunctionDescriptor>();
functions.Add(function);
// generate the Type
Type functionType = FunctionGenerator.Generate("TestScriptHost", "TestFunctions", functions);
// verify the generated function
MethodInfo method = functionType.GetMethod("TimerFunction");
ParameterInfo triggerParameter = method.GetParameters()[0];
TimerTriggerAttribute triggerAttribute = triggerParameter.GetCustomAttribute<TimerTriggerAttribute>();
Assert.NotNull(triggerAttribute);
// start the JobHost which will start running the timer function
JobHostConfiguration config = new JobHostConfiguration()
{
TypeLocator = new TypeLocator(functionType)
};
config.UseTimers();
JobHost host = new JobHost(config);
await host.StartAsync();
await Task.Delay(3000);
await host.StopAsync();
// verify our custom invoker was called
Assert.True(invoker.InvokeCount >= 2);
}