public async Task WriteAsyncEnumerableOfAsyncEnumerables <TElement>(IEnumerable <TElement> source, int delayInterval, int bufferSize)
{
if (StreamingSerializer?.IsAsyncSerializer != true)
{
return;
}
JsonSerializerOptions options = new JsonSerializerOptions
{
DefaultBufferSize = bufferSize
};
const int OuterEnumerableCount = 5;
string expectedJson = JsonSerializer.Serialize(Enumerable.Repeat(source, OuterEnumerableCount));
var innerAsyncEnumerable = new MockedAsyncEnumerable <TElement>(source, delayInterval);
var outerAsyncEnumerable =
new MockedAsyncEnumerable <IAsyncEnumerable <TElement> >(
Enumerable.Repeat(innerAsyncEnumerable, OuterEnumerableCount), delayInterval);
using var stream = new Utf8MemoryStream();
await StreamingSerializer.SerializeWrapper(stream, outerAsyncEnumerable, options);
JsonTestHelper.AssertJsonEqual(expectedJson, stream.AsString());
Assert.Equal(1, outerAsyncEnumerable.TotalCreatedEnumerators);
Assert.Equal(1, outerAsyncEnumerable.TotalDisposedEnumerators);
Assert.Equal(OuterEnumerableCount, innerAsyncEnumerable.TotalCreatedEnumerators);
Assert.Equal(OuterEnumerableCount, innerAsyncEnumerable.TotalDisposedEnumerators);
}
public async Task WriteNestedAsyncEnumerable_Nullable <TElement>(IEnumerable <TElement> source, int delayInterval, int bufferSize)
{
if (StreamingSerializer?.IsAsyncSerializer != true)
{
return;
}
// Primarily tests the ability of NullableConverter to flow async serialization state
JsonSerializerOptions options = new JsonSerializerOptions
{
DefaultBufferSize = bufferSize,
IncludeFields = true,
};
string expectedJson = JsonSerializer.Serialize <(IEnumerable <TElement>, bool)?>((source, false), options);
using var stream = new Utf8MemoryStream();
var asyncEnumerable = new MockedAsyncEnumerable <TElement>(source, delayInterval);
await StreamingSerializer.SerializeWrapper <(IAsyncEnumerable <TElement>, bool)?>(stream, (asyncEnumerable, false), options);
JsonTestHelper.AssertJsonEqual(expectedJson, stream.AsString());
Assert.Equal(1, asyncEnumerable.TotalCreatedEnumerators);
Assert.Equal(1, asyncEnumerable.TotalDisposedEnumerators);
}
public override async Task <string> SerializeWrapper <T>(T value, JsonTypeInfo <T> jsonTypeInfo)
{
using var utf8Stream = new Utf8MemoryStream();
await SerializeWrapper(utf8Stream, value, jsonTypeInfo);
return(utf8Stream.AsString());
}
public override async Task <string> SerializeWrapper(object value, Type inputType, JsonSerializerContext context)
{
using var utf8Stream = new Utf8MemoryStream();
await SerializeWrapper(utf8Stream, value, inputType, context);
return(utf8Stream.AsString());
}
public override async Task <string> SerializeWrapper <T>(T value, JsonSerializerOptions options = null)
{
using var utf8Stream = new Utf8MemoryStream();
await SerializeWrapper(utf8Stream, value, options);
return(utf8Stream.AsString());
}
public async Task WriteRootLevelAsyncEnumerable <TElement>(IEnumerable <TElement> source, int delayInterval, int bufferSize)
{
if (StreamingSerializer?.IsAsyncSerializer != true)
{
return;
}
JsonSerializerOptions options = new JsonSerializerOptions
{
DefaultBufferSize = bufferSize
};
string expectedJson = JsonSerializer.Serialize(source);
using var stream = new Utf8MemoryStream();
var asyncEnumerable = new MockedAsyncEnumerable <TElement>(source, delayInterval);
await StreamingSerializer.SerializeWrapper(stream, asyncEnumerable, options);
JsonTestHelper.AssertJsonEqual(expectedJson, stream.AsString());
Assert.Equal(1, asyncEnumerable.TotalCreatedEnumerators);
Assert.Equal(1, asyncEnumerable.TotalDisposedEnumerators);
}
public async Task WriteSequentialNestedAsyncEnumerables <TElement>(IEnumerable <TElement> source, int delayInterval, int bufferSize)
{
if (StreamingSerializer?.IsAsyncSerializer != true)
{
return;
}
JsonSerializerOptions options = new JsonSerializerOptions
{
DefaultBufferSize = bufferSize
};
string expectedJson = JsonSerializer.Serialize(new { Data1 = source, Data2 = source });
using var stream = new Utf8MemoryStream();
var asyncEnumerable = new MockedAsyncEnumerable <TElement>(source, delayInterval);
await StreamingSerializer.SerializeWrapper(stream, new AsyncEnumerableDtoWithTwoProperties <TElement> {
Data1 = asyncEnumerable, Data2 = asyncEnumerable
}, options);
JsonTestHelper.AssertJsonEqual(expectedJson, stream.AsString());
Assert.Equal(2, asyncEnumerable.TotalCreatedEnumerators);
Assert.Equal(2, asyncEnumerable.TotalDisposedEnumerators);
}