public void AddsStorageOutput_FromReturnType()
{
FunctionContext context = GetContextWithOutputBindings(nameof(JustStorage.MyQueueOutput), nameof(JustStorage.MyBlobOutput));
JustStorage result = new JustStorage()
{
MyQueueOutput = "queueStuff",
MyBlobOutput = "blobStuff"
};
context.GetBindings().InvocationResult = result;
Assert.Empty(context.GetBindings().OutputBindingData);
OutputBindingsMiddleware.AddOutputBindings(context);
object returnedVal = context.GetBindings().InvocationResult;
Assert.Null(returnedVal);
Assert.Equal(2, context.GetBindings().OutputBindingData.Count);
AssertDictionary(context.GetBindings().OutputBindingData, new Dictionary <string, object>()
{
{ "MyQueueOutput", "queueStuff" },
{ "MyBlobOutput", "blobStuff" }
});
}
public void AddsStorageOutput_AndHttpReturn_FromReturnType()
{
FunctionContext context = GetContextWithOutputBindings(nameof(HttpAndStorage.MyQueueOutput), nameof(HttpAndStorage.MyBlobOutput),
nameof(HttpAndStorage.MyHttpResponseData));
var emptyHttp = new TestHttpResponseData(context, HttpStatusCode.OK);
HttpAndStorage result = new HttpAndStorage()
{
MyQueueOutput = "queueStuff",
MyBlobOutput = "blobStuff",
MyRandomValue = "ShouldNotAppear",
MyHttpResponseData = emptyHttp
};
context.GetBindings().InvocationResult = result;
Assert.Equal(0, context.GetBindings().OutputBindingData.Count);
OutputBindingsMiddleware.AddOutputBindings(context);
object returnedVal = context.GetBindings().InvocationResult;
Assert.Null(returnedVal);
Assert.Equal(3, context.GetBindings().OutputBindingData.Count);
AssertDictionary(context.GetBindings().OutputBindingData, new Dictionary <string, object>()
{
{ "MyQueueOutput", "queueStuff" },
{ "MyBlobOutput", "blobStuff" },
{ "MyHttpResponseData", emptyHttp }
});
}
public void SetsResult_NoBinding()
{
// No binding, should leave invocation result untouched
FunctionContext context = GetContextWithOutputBindings();
string myData = "abc";
context.GetBindings().InvocationResult = myData;
Assert.Empty(context.GetBindings().OutputBindingData);
OutputBindingsMiddleware.AddOutputBindings(context);
object returnedVal = context.GetBindings().InvocationResult;
Assert.Equal("abc", returnedVal);
Assert.Equal(0, context.GetBindings().OutputBindingData.Count);
}
public void SetsOutput_FromMethodBinding()
{
// special binding to indicate the return value is set as an output binding
FunctionContext context = GetContextWithOutputBindings("$return");
var emptyHttp = new TestHttpResponseData(context, HttpStatusCode.OK);
context.GetBindings().InvocationResult = emptyHttp;
Assert.Empty(context.GetBindings().OutputBindingData);
OutputBindingsMiddleware.AddOutputBindings(context);
object returnedVal = context.GetBindings().InvocationResult;
Assert.Equal(returnedVal, emptyHttp);
Assert.Empty(context.GetBindings().OutputBindingData);
AssertDictionary(context.GetBindings().OutputBindingData, new Dictionary <string, object>());
}
public void AddsSingleOutput_FromMethodReturn()
{
// Special binding name indiciating return
FunctionContext context = GetContextWithOutputBindings("$return");
string result = "MyStorageData";
context.GetBindings().InvocationResult = result;
Assert.Empty(context.GetBindings().OutputBindingData);
OutputBindingsMiddleware.AddOutputBindings(context);
object returnedVal = context.GetBindings().InvocationResult;
Assert.Equal(returnedVal, result);
Assert.Empty(context.GetBindings().OutputBindingData);
AssertDictionary(context.GetBindings().OutputBindingData, new Dictionary <string, object>());
}
/// <summary>
/// Configures the <see cref="IFunctionsWorkerApplicationBuilder"/> to use the default <see cref="OutputBindingsMiddleware"/>.
/// </summary>
/// <param name="builder">The <see cref="IFunctionsWorkerApplicationBuilder"/> to configure.</param>
/// <returns>The same instance of the <see cref="IFunctionsWorkerApplicationBuilder"/> for chanining.</returns>
public static IFunctionsWorkerApplicationBuilder UseOutputBindingsMiddleware(this IFunctionsWorkerApplicationBuilder builder)
{
if (builder.Services.Any(d => d.ServiceType == typeof(OutputBindingsMiddleware)))
{
return(builder);
}
builder.Services.AddSingleton <OutputBindingsMiddleware>(p => throw new InvalidOperationException($"Type {nameof(OutputBindingsMiddleware)} cannot be resolved using the container."));
builder.Use(next =>
{
return(context =>
{
return OutputBindingsMiddleware.Invoke(context, next);
});
});
return(builder);
}
