public void Formatters_ForApiController_EvaluatesOnce()
{
// Arrange
object content = CreateContent();
ApiController controller = CreateController();
MediaTypeFormatter expectedFormatter = CreateFormatter();
IContentNegotiator contentNegotiator = CreateContentNegotiator();
using (
HttpConfiguration earlyConfiguration = CreateConfiguration(
expectedFormatter,
contentNegotiator
)
)
using (HttpRequestMessage request = CreateRequest())
{
controller.Configuration = earlyConfiguration;
controller.Request = request;
OkNegotiatedContentResult <object> result = CreateProductUnderTest(
content,
controller
);
IEnumerable <MediaTypeFormatter> ignore = result.Formatters;
using (
HttpConfiguration lateConfiguration = CreateConfiguration(
CreateFormatter(),
contentNegotiator
)
)
{
controller.Configuration = lateConfiguration;
// Act
IEnumerable <MediaTypeFormatter> formatters = result.Formatters;
// Assert
Assert.NotNull(formatters);
MediaTypeFormatter formatter = Assert.Single(formatters);
Assert.Same(expectedFormatter, formatter);
}
}
}
public void Request_ForApiController_Throws_WhenControllerRequestIsNull()
{
// Arrange
object content = CreateContent();
ApiController controller = CreateController();
Assert.Null(controller.Request);
using (HttpConfiguration configuration = CreateConfiguration(CreateFormatter(), CreateContentNegotiator()))
{
controller.Configuration = configuration;
OkNegotiatedContentResult <object> result = CreateProductUnderTest(content, controller);
// Act & Assert
InvalidOperationException exception = Assert.Throws <InvalidOperationException>(() =>
{ HttpRequestMessage ignore = result.Request; }, "ApiController.Request must not be null.");
}
}
public void ContentNegotiator_ForApiController_Throws_WhenConfigurationIsNull()
{
// Arrange
object content = CreateContent();
ApiController controller = CreateController();
HttpControllerContext context = new HttpControllerContext();
using (HttpRequestMessage request = CreateRequest())
{
controller.ControllerContext = context;
OkNegotiatedContentResult <object> result = CreateProductUnderTest(content, controller);
// Act & Assert
Assert.Throws <InvalidOperationException>(
() => { IContentNegotiator ignore = result.ContentNegotiator; },
"HttpControllerContext.Configuration must not be null.");
}
}
public void ContentNegotiator_Returns_InstanceProvided()
{
// Arrange
object content = CreateContent();
IContentNegotiator expectedContentNegotiator = CreateContentNegotiator();
using (HttpRequestMessage request = CreateRequest())
{
IEnumerable <MediaTypeFormatter> formatters = CreateFormatters();
OkNegotiatedContentResult <object> result = CreateProductUnderTest(content, expectedContentNegotiator,
request, formatters);
// Act
IContentNegotiator contentNegotiator = result.ContentNegotiator;
// Assert
Assert.Same(expectedContentNegotiator, contentNegotiator);
}
}
public void ContentNegotiator_ForApiController_Throws_WhenServiceIsNull()
{
// Arrange
object content = CreateContent();
ApiController controller = CreateController();
using (HttpConfiguration configuration = CreateConfiguration(CreateFormatter(), null))
using (HttpRequestMessage request = CreateRequest())
{
controller.Configuration = configuration;
OkNegotiatedContentResult <object> result = CreateProductUnderTest(content, controller);
// Act & Assert
Assert.Throws <InvalidOperationException>(
() => { IContentNegotiator ignore = result.ContentNegotiator; },
"The provided configuration does not have an instance of the " +
"'System.Net.Http.Formatting.IContentNegotiator' service registered.");
}
}
public void ApiControllerOk_WithContent_CreatesCorrectResult()
{
// Arrange
object expectedContent = CreateContent();
ApiController controller = CreateController();
// Act
OkNegotiatedContentResult <object> result = controller.Ok(expectedContent);
// Assert
Assert.NotNull(result);
Assert.Same(expectedContent, result.Content);
using (HttpConfiguration configuration = CreateConfiguration(CreateFormatter(), CreateContentNegotiator()))
using (HttpRequestMessage expectedRequest = CreateRequest())
{
controller.Configuration = configuration;
controller.Request = expectedRequest;
Assert.Same(expectedRequest, result.Request);
}
}
public void Request_ForApiController_EvaluatesOnce()
{
// Arrange
object content = CreateContent();
ApiController controller = CreateController();
using (
HttpConfiguration configuration = CreateConfiguration(
CreateFormatter(),
CreateContentNegotiator()
)
)
{
controller.Configuration = configuration;
OkNegotiatedContentResult <object> result = CreateProductUnderTest(
content,
controller
);
using (HttpRequestMessage expectedRequest = CreateRequest())
{
controller.Request = expectedRequest;
HttpRequestMessage ignore = result.Request;
using (HttpRequestMessage otherRequest = CreateRequest())
{
controller.Request = otherRequest;
// Act
HttpRequestMessage request = result.Request;
// Assert
Assert.Same(expectedRequest, request);
}
}
}
}
public void ContentNegotiator_ForApiController_EvaluatesLazily()
{
// Arrange
object content = CreateContent();
ApiController controller = CreateController();
using (
HttpConfiguration configuration = CreateConfiguration(
CreateFormatter(),
CreateContentNegotiator()
)
)
{
controller.Configuration = configuration;
using (HttpRequestMessage request = CreateRequest())
{
controller.Request = request;
OkNegotiatedContentResult <object> result = CreateProductUnderTest(
content,
controller
);
IContentNegotiator expectedContentNegotiator = CreateContentNegotiator();
configuration.Services.Replace(
typeof(IContentNegotiator),
expectedContentNegotiator
);
// Act
IContentNegotiator contentNegotiator = result.ContentNegotiator;
// Assert
Assert.Same(expectedContentNegotiator, contentNegotiator);
}
}
}