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, null, null, null);
Collection <FunctionDescriptor> functions = new Collection <FunctionDescriptor>();
functions.Add(function);
// Get the Type Attributes (in this case, a TimeoutAttribute)
ScriptJobHostOptions scriptConfig = new ScriptJobHostOptions();
scriptConfig.FunctionTimeout = TimeSpan.FromMinutes(5);
Collection <CustomAttributeBuilder> typeAttributes = new Collection <CustomAttributeBuilder>();
// generate the Type
Type functionType = FunctionGenerator.Generate("TestScriptHost", "TestFunctions", typeAttributes, 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
var builder = new HostBuilder()
.ConfigureWebJobs(b =>
{
b.AddTimers()
.AddAzureStorageCoreServices();
})
.ConfigureServices(s =>
{
s.AddSingleton <ITypeLocator>(new TestTypeLocator(functionType));
s.AddSingleton <ILoggerFactory>(new LoggerFactory());
TestHelpers.AddTestAzureBlobStorageProvider(s, TestHelpers.GetTestConfiguration());
TestHostBuilderExtensions.AddMockedSingleton <IScriptHostManager>(s);
});
using (var host = builder.Build())
{
await host.StartAsync();
await Task.Delay(3000);
await host.StopAsync();
}
// verify our custom invoker was called
Assert.True(invoker.InvokeCount >= 2);
}