public async Task InvokeAsync_Returns502_WhenHandlerReturnsNullResponse()
{
ILogger logger = Substitute.For <ILogger>();
ApiBuilder apiBuilder = new ApiBuilder(Substitute.For <ISimulation>())
.SetDefaultHandler(null);
var apiSettings = new ApiSimulatorSettings(apiBuilder);
var context = new DefaultHttpContext();
context.Request.Method = "GET";
context.Request.Path = "/vals";
var middleware = new ApiSimulatorOwinMiddleware(apiSettings, logger, _ => { });
await middleware.InvokeAsync(context, _ => Task.CompletedTask);
context.Response.StatusCode.ShouldBe(502);
context.Response.HttpContext.Features.Get <IHttpResponseFeature>().ReasonPhrase.ShouldBe("Invalid Handler");
}
public async Task InvokeAsync_DisposesApiResponse()
{
Body body = Substitute.ForPartsOf <Body>("foo", "text/plain", null);
var response = new ApiResponse(202, body: body);
ILogger logger = Substitute.For <ILogger>();
ApiBuilder apiBuilder = new ApiBuilder(Substitute.For <ISimulation>())
.AddHandler("PUT /test.ob", _ => Task.FromResult(response));
var apiSettings = new ApiSimulatorSettings(apiBuilder);
var context = new DefaultHttpContext();
context.Request.Method = "PUT";
context.Request.Path = "/test.ob";
var middleware = new ApiSimulatorOwinMiddleware(apiSettings, logger, _ => { });
await middleware.InvokeAsync(context, _ => Task.CompletedTask);
body.Received(1).Dispose();
}
public async Task InvokeAsync_InvokesApiCall()
{
ApiCall recordedApiCall = null;
ILogger logger = Substitute.For <ILogger>();
var apiBuilder = new ApiBuilder(Substitute.For <ISimulation>());
var apiSettings = new ApiSimulatorSettings(apiBuilder);
var context = new DefaultHttpContext();
context.Request.Method = "PATCH";
context.Request.Path = "/vehicle/32";
var middleware = new ApiSimulatorOwinMiddleware(apiSettings, logger,
apiCall => recordedApiCall = apiCall);
await middleware.InvokeAsync(context, _ => Task.CompletedTask);
recordedApiCall.Request.Method.ShouldBeSameAs(context.Request.Method);
recordedApiCall.Response.ShouldNotBeNull();
recordedApiCall.Exception.ShouldBeNull();
}
public async Task InvokeAsync_LogsRequest(string method, string path)
{
ILogger logger = Substitute.For <ILogger>();
var apiBuilder = new ApiBuilder(Substitute.For <ISimulation>());
var apiSettings = new ApiSimulatorSettings(apiBuilder);
var context = new DefaultHttpContext();
context.Request.Method = method;
context.Request.Path = path;
var middleware = new ApiSimulatorOwinMiddleware(apiSettings, logger, _ => { });
await middleware.InvokeAsync(context, _ => Task.CompletedTask);
Received.InOrder(() =>
{
logger.Received(1).Log(LogLevel.Debug, 0, Arg.Is <FormattedLogValues>(value => value.ToString() == $"Request \"{method} {path}\" started"), null, Arg.Any <Func <object, Exception, string> >());
logger.Received(1).Log(LogLevel.Debug, 0, Arg.Is <FormattedLogValues>(value => value.ToString() == $"Request \"{method} {path}\" completed"), null, Arg.Any <Func <object, Exception, string> >());
});
}
public async Task InvokeAsync_InvokesApiCall_WhenHandlerThrowsError()
{
ApiCall recordedApiCall = null;
var exception = new InvalidOperationException();
ILogger logger = Substitute.For <ILogger>();
ApiBuilder apiBuilder = new ApiBuilder(Substitute.For <ISimulation>())
.AddHandler("GET /vals", _ => throw exception);
var apiSettings = new ApiSimulatorSettings(apiBuilder);
var context = new DefaultHttpContext();
context.Request.Method = "GET";
context.Request.Path = "/vals";
var middleware = new ApiSimulatorOwinMiddleware(apiSettings, logger, apiCall => recordedApiCall = apiCall);
await middleware.InvokeAsync(context, _ => Task.CompletedTask).ShouldThrowAsync <InvalidOperationException>();
recordedApiCall.Request.Method.ShouldBeSameAs(context.Request.Method);
recordedApiCall.Response.ShouldBeNull();
recordedApiCall.Exception.ShouldBeSameAs(exception);
}
public async Task InvokeAsync_LogsError_WhenHandlerThrowsError()
{
var exception = new InvalidOperationException();
ILogger logger = Substitute.For <ILogger>();
ApiBuilder apiBuilder = new ApiBuilder(Substitute.For <ISimulation>())
.AddHandler("GET /vals", _ => throw exception);
var apiSettings = new ApiSimulatorSettings(apiBuilder);
var context = new DefaultHttpContext();
context.Request.Method = "GET";
context.Request.Path = "/vals";
var middleware = new ApiSimulatorOwinMiddleware(apiSettings, logger, _ => { });
await middleware.InvokeAsync(context, _ => Task.CompletedTask).ShouldThrowAsync <InvalidOperationException>();
logger.Received(1).Log(LogLevel.Error, 0,
Arg.Is <FormattedLogValues>(value => value.ToString() == "Error processing request \"GET /vals\""),
exception,
Arg.Any <Func <object, Exception, string> >());
}
public async Task InvokeAsync_UsesRegisteredHandler_WhenHandlerAvailable()
{
var handlerCalled = false;
ILogger logger = Substitute.For <ILogger>();
ApiBuilder apiBuilder = new ApiBuilder(Substitute.For <ISimulation>())
.AddHandler("GET /users/32", _ =>
{
handlerCalled = true;
return(Task.FromResult(new ApiResponse(200)));
});
var apiSettings = new ApiSimulatorSettings(apiBuilder);
var context = new DefaultHttpContext();
context.Request.Method = "GET";
context.Request.Path = "/users/32";
var middleware = new ApiSimulatorOwinMiddleware(apiSettings, logger, _ => { });
await middleware.InvokeAsync(context, _ => Task.CompletedTask);
handlerCalled.ShouldBeTrue();
context.Response.StatusCode.ShouldBe(200);
}
public async Task InvokeAsync_UsesDefaultHandler_WhenRegisteredHandlerNotFound()
{
var defaultHandlerCalled = false;
ILogger logger = Substitute.For <ILogger>();
ApiBuilder apiBuilder = new ApiBuilder(Substitute.For <ISimulation>())
.SetDefaultHandler(_ =>
{
defaultHandlerCalled = true;
return(Task.FromResult(new ApiResponse(403)));
});
var apiSettings = new ApiSimulatorSettings(apiBuilder);
var context = new DefaultHttpContext();
context.Request.Method = "GET";
context.Request.Path = "/any.htm";
var middleware = new ApiSimulatorOwinMiddleware(apiSettings, logger, _ => { });
await middleware.InvokeAsync(context, _ => Task.CompletedTask);
defaultHandlerCalled.ShouldBeTrue();
context.Response.StatusCode.ShouldBe(403);
}