public static async Task RegisteredType_NullLink(
Guid id,
Guid parentId,
UnequalNonNullPair <NonEmptyString> routes,
JsonSerializerSettings serializerSettings)
{
if (serializerSettings is null)
{
throw new ArgumentNullException(nameof(serializerSettings));
}
var dto = new Registered
{
Id = id,
ParentId = parentId,
};
var(route, parentRoute) = routes;
var builder = new TransformationMap.Builder <Registered>(r => Const(new Uri($"https://example.invalid/registered/{r.Id}")));
ITransformationMap <Registered> transformationMap = builder;
_ = transformationMap.Link("up", _ => (ILinkData?)null);
var map = new Dictionary <Type, ITransformationInstructions>
{
[typeof(Registered)] = builder,
};
await using var serviceProvider = new ServiceCollection()
.AddScoped <ILinkBuilder <Constant>, LinkBuilder.Constant>()
.BuildServiceProvider();
var repo = new HalRepository(map, serviceProvider);
serializerSettings.Converters.Add(new LinkCollection.Converter());
var sut = new HalJsonOutputFormatter(serializerSettings, ArrayPool <char> .Shared, new MvcOptions(), repo);
using var writer = new StringWriter();
var context = new OutputFormatterWriteContext(
new DefaultHttpContext(),
(_, _) => writer,
typeof(Registered),
dto);
await sut.WriteResponseBodyAsync(context, new UTF8Encoding(encoderShouldEmitUTF8Identifier : false)).ConfigureAwait(false);
var actual = JsonConvert.DeserializeObject <HollowHal>(writer.ToString(), serializerSettings);
Assert.NotNull(actual);
Assert.Empty(actual.Embedded);
Assert.NotNull(actual.Links);
var(rel, link) = Assert.Single(actual.Links);
Assert.Equal("self", rel);
Assert.Equal($"https://example.invalid/registered/{id}", link.Href);
}
public static void UnregisteredType_CannotWriteResult(JsonSerializerSettings serializerSettings)
{
// arrange
var repo = new HalRepository(ImmutableDictionary <Type, ITransformationInstructions> .Empty, new ServiceCollection().BuildServiceProvider());
var sut = new HalJsonOutputFormatter(serializerSettings, ArrayPool <char> .Shared, repo);
var context = new OutputFormatterWriteContext(new DefaultHttpContext(), (_, __) => new StreamWriter(Stream.Null), typeof(Unregistered), null);
// act
var actual = sut.CanWriteResult(context);
// assert
Assert.False(actual);
}
public static void RegisteredType_CanWriteResult(JsonSerializerSettings serializerSettings)
{
// arrange
var map = new Dictionary <Type, ITransformationInstructions>
{
[typeof(Registered)] = new TransformationMap.Builder <Registered>(_ => Const(new Uri("about:blank", Absolute)))
};
var repo = new HalRepository(map, new ServiceCollection().BuildServiceProvider());
var sut = new HalJsonOutputFormatter(serializerSettings, ArrayPool <char> .Shared, repo);
var context = new OutputFormatterWriteContext(new DefaultHttpContext(), (_, __) => new StreamWriter(Stream.Null), typeof(Registered), null);
// act
var actual = sut.CanWriteResult(context);
//assert
Assert.True(actual);
}
public static async Task RegisteredType_SelfLink(Guid id, JsonSerializerSettings serializerSettings)
{
if (serializerSettings is null)
{
throw new ArgumentNullException(nameof(serializerSettings));
}
var dto = new Registered
{
Id = id,
};
var map = new Dictionary <Type, ITransformationInstructions>
{
[typeof(Registered)] = new TransformationMap.Builder <Registered>(
r => Const(new Uri($"https://example.invalid/registered/{r.Id}"))),
};
await using var serviceProvider = new ServiceCollection()
.AddScoped <ILinkBuilder <Constant>, LinkBuilder.Constant>()
.BuildServiceProvider();
var repo = new HalRepository(map, serviceProvider);
serializerSettings.Converters.Add(new LinkCollection.Converter());
var sut = new HalJsonOutputFormatter(serializerSettings, ArrayPool <char> .Shared, new MvcOptions(), repo);
using var writer = new StringWriter();
var context = new OutputFormatterWriteContext(
new DefaultHttpContext(),
(_, _) => writer,
typeof(Registered),
dto);
await sut.WriteResponseBodyAsync(context, new UTF8Encoding(encoderShouldEmitUTF8Identifier : false)).ConfigureAwait(false);
var actual = JsonConvert.DeserializeObject <HollowHal>(writer.ToString(), serializerSettings);
Assert.NotNull(actual);
Assert.Empty(actual.Embedded);
Assert.NotNull(actual.Links);
Assert.Equal(1, actual.Links.Count);
var self = Assert.Contains(Relations.Self, actual.Links);
Assert.NotNull(self);
Assert.Equal($"https://example.invalid/registered/{id}", self.Href);
}
public static async Task UnregisteredType_NotModified(Guid id, JsonSerializerSettings serializerSettings)
{
var dto = new Unregistered
{
Id = id,
};
using var svc = new ServiceContainer();
var repo = new HalRepository(ImmutableDictionary <Type, ITransformationInstructions> .Empty, svc);
var sut = new HalJsonOutputFormatter(serializerSettings, ArrayPool <char> .Shared, new MvcOptions(), repo);
await using var writer = new StringWriter();
var context = new OutputFormatterWriteContext(
new DefaultHttpContext(),
(_, _) => writer,
typeof(Unregistered),
dto);
await sut.WriteResponseBodyAsync(context, new UTF8Encoding(encoderShouldEmitUTF8Identifier : false)).ConfigureAwait(false);
var actual = JsonConvert.DeserializeObject <Unregistered>(writer.ToString(), serializerSettings);
Assert.Equal(id, actual.Id);
}
