public void ExtensionDataGetterCanBeIteratedMultipleTimes()
{
DefaultContractResolver resolver = new DefaultContractResolver();
JsonObjectContract contract = (JsonObjectContract)resolver.ResolveContract(typeof(ClassWithExtensionData));
ClassWithExtensionData myClass = new ClassWithExtensionData
{
Data = new Dictionary <string, object>
{
{ "SomeField", "Field" },
}
};
ExtensionDataGetter getter = contract.ExtensionDataGetter;
IEnumerable <KeyValuePair <object, object> > dictionaryData = getter(myClass).ToDictionary(kv => kv.Key, kv => kv.Value);
Assert.IsTrue(dictionaryData.Any());
Assert.IsTrue(dictionaryData.Any());
IEnumerable <KeyValuePair <object, object> > extensionData = getter(myClass);
Assert.IsTrue(extensionData.Any());
Assert.IsTrue(extensionData.Any()); // second test fails if the enumerator returned isn't reset
}
public static void ReadAheadFromRoot(int stringSize)
{
string json = CreateTestStringProperty(stringSize);
var options = new JsonSerializerOptions();
options.Converters.Add(new ClassWithStringPropertyConverter());
// Ensure buffer size is small as possible for read-ahead.
options.DefaultBufferSize = 1;
byte[] data = Encoding.UTF8.GetBytes(json);
{
MemoryStream stream = new MemoryStream(data);
ClassWithStringProperties obj = JsonSerializer.DeserializeAsync <ClassWithStringProperties>(stream, options).Result;
VerifyClassWithStringProperties(obj, stringSize);
string jsonSerialized = JsonSerializer.Serialize(obj, options);
Assert.Equal(json, jsonSerialized);
}
{
// Verify extension data works with read-ahead. Extension data stored on JsonElement which has a custom converter.
MemoryStream stream = new MemoryStream(data);
ClassWithExtensionData obj = JsonSerializer.DeserializeAsync <ClassWithExtensionData>(stream, options).Result;
VerifyExtensionDataStringProperties(obj, stringSize);
string jsonSerialized = JsonSerializer.Serialize(obj, options);
Assert.Equal(json, jsonSerialized);
}
}
private static void ExtensionProperty_IgnoresCustomSerializerWithExplicitConverterInternal <TRoot, TDictionary, TOverflowItem>()
where TRoot : IClassWithOverflow <TDictionary>, new()
where TDictionary : IDictionary <string, TOverflowItem>
{
ClassWithExtensionData <TDictionary> obj
= JsonSerializer.Deserialize <ClassWithExtensionData <TDictionary> >(@"{""TestKey"":""TestValue""}");
Assert.Equal("TestValue", ((JsonElement)(object)obj.Overflow["TestKey"]).GetString());
}
private static void ExtensionProperty_IgnoresCustomSerializerWithOptionsInternal <TDictionary, TOverflowItem, TConverter>()
where TConverter : JsonConverter, new()
where TDictionary : IDictionary <string, TOverflowItem>
{
var options = new JsonSerializerOptions();
options.Converters.Add(new TConverter());
ClassWithExtensionData <TDictionary> obj
= JsonSerializer.Deserialize <ClassWithExtensionData <TDictionary> >(@"{""TestKey"":""TestValue""}", options);
Assert.Equal("TestValue", ((JsonElement)(object)obj.Overflow["TestKey"]).GetString());
}
private static void VerifyExtensionDataStringProperties(ClassWithExtensionData obj, int stringSize)
{
// The 10 properties will cause buffer boundary cases where the converter requires read-ahead.
Assert.Equal(new string('0', stringSize), ((JsonElement)obj.MyOverflow["MyString0"]).ToString());
Assert.Equal(new string('1', stringSize), ((JsonElement)obj.MyOverflow["MyString1"]).ToString());
Assert.Equal(new string('2', stringSize), ((JsonElement)obj.MyOverflow["MyString2"]).ToString());
Assert.Equal(new string('3', stringSize), ((JsonElement)obj.MyOverflow["MyString3"]).ToString());
Assert.Equal(new string('4', stringSize), ((JsonElement)obj.MyOverflow["MyString4"]).ToString());
Assert.Equal(new string('5', stringSize), ((JsonElement)obj.MyOverflow["MyString5"]).ToString());
Assert.Equal(new string('6', stringSize), ((JsonElement)obj.MyOverflow["MyString6"]).ToString());
Assert.Equal(new string('7', stringSize), ((JsonElement)obj.MyOverflow["MyString7"]).ToString());
Assert.Equal(new string('8', stringSize), ((JsonElement)obj.MyOverflow["MyString8"]).ToString());
Assert.Equal(new string('9', stringSize), ((JsonElement)obj.MyOverflow["MyString9"]).ToString());
}
public static void ReadAheadFromProperties(int stringSize)
{
string jsonProperties = CreateTestStringProperty(stringSize);
StringBuilder builder = new StringBuilder();
builder.Append("{");
builder.Append(@"""Property1"":");
builder.Append(jsonProperties);
builder.Append(@",""Property2"":");
builder.Append(jsonProperties);
builder.Append(@",""Property3"":");
builder.Append(jsonProperties);
builder.Append("}");
string json = builder.ToString();
var options = new JsonSerializerOptions();
options.Converters.Add(new ClassWithStringPropertyConverter());
// Ensure buffer size is small as possible for read-ahead.
options.DefaultBufferSize = 1;
byte[] data = Encoding.UTF8.GetBytes(json);
{
MemoryStream stream = new MemoryStream(data);
ClassWithNoConverter obj = JsonSerializer.DeserializeAsync <ClassWithNoConverter>(stream, options).Result;
VerifyClassWithStringProperties(obj.Property1, stringSize);
VerifyClassWithStringProperties(obj.Property2, stringSize);
VerifyClassWithStringProperties(obj.Property3, stringSize);
string jsonSerialized = JsonSerializer.Serialize(obj, options);
Assert.Equal(json, jsonSerialized);
}
{
// Verify extension data works with read-ahead. Extension data stored on JsonElement which has a custom converter.
MemoryStream stream = new MemoryStream(data);
ClassWithExtensionData obj = JsonSerializer.DeserializeAsync <ClassWithExtensionData>(stream, options).Result;
Assert.NotNull(obj.MyOverflow["Property1"]);
Assert.NotNull(obj.MyOverflow["Property2"]);
Assert.NotNull(obj.MyOverflow["Property3"]);
string jsonSerialized = JsonSerializer.Serialize(obj, options);
Assert.Equal(json, jsonSerialized);
}
}
public async Task IgnoreKeyPolicyForExtensionData()
{
var options = new JsonSerializerOptions
{
DictionaryKeyPolicy = JsonNamingPolicy.CamelCase // e.g. Key1 -> key1.
};
// Ensure we ignore key policy for extension data and deserialize keys as they are.
ClassWithExtensionData myClass = await JsonSerializerWrapperForString.DeserializeWrapper <ClassWithExtensionData>(@"{""Key1"":1, ""Key2"":2}", options);
Assert.Equal(1, (myClass.ExtensionData["Key1"]).GetInt32());
Assert.Equal(2, (myClass.ExtensionData["Key2"]).GetInt32());
// Ensure we ignore key policy for extension data and serialize keys as they are.
Assert.Equal(@"{""Key1"":1,""Key2"":2}", await JsonSerializerWrapperForString.SerializeWrapper(myClass, options));
}
public static void IgnoreKeyPolicyForExtensionData()
{
var options = new JsonSerializerOptions
{
DictionaryKeyPolicy = JsonNamingPolicy.CamelCase // e.g. Key1 -> key1.
};
// Ensure we ignore key policy for extension data and deserialize keys as they are.
ClassWithExtensionData myClass = JsonSerializer.Deserialize <ClassWithExtensionData>(@"{""Key1"":1, ""Key2"":2}", options);
Assert.Equal(1, (myClass.ExtensionData["Key1"]).GetInt32());
Assert.Equal(2, (myClass.ExtensionData["Key2"]).GetInt32());
// Ensure we ignore key policy for extension data and serialize keys as they are.
Assert.Equal(@"{""Key1"":1,""Key2"":2}", JsonSerializer.Serialize(myClass, options));
}
private static void ExtensionProperty_SupportsWritingToCustomSerializerWithOptionsInternal <TDictionary, TConverter>()
where TDictionary : new()
where TConverter : JsonConverter, new()
{
var root = new ClassWithExtensionData <TDictionary>()
{
Overflow = new TDictionary()
};
var options = new JsonSerializerOptions();
options.Converters.Add(new TConverter());
string json = JsonSerializer.Serialize(root, options);
Assert.Equal(@"{""MyCustomOverflowWrite"":""OverflowValueWrite""}", json);
}
public async Task DictionaryKeyContainingLeadingDollarSignShouldBeEncoded()
{
//$ Key in dictionary holding primitive type.
Dictionary <string, object> dictionary = new Dictionary <string, object>
{
["$string"] = "Hello world"
};
string json = await JsonSerializerWrapperForString.SerializeWrapper(dictionary, s_serializerOptionsPreserve);
Assert.Equal(@"{""$id"":""1"",""\u0024string"":""Hello world""}", json);
//$ Key in dictionary holding complex type.
dictionary = new Dictionary <string, object>
{
["$object"] = new ClassWithExtensionData {
Hello = "World"
}
};
json = await JsonSerializerWrapperForString.SerializeWrapper(dictionary, s_serializerOptionsPreserve);
Assert.Equal(@"{""$id"":""1"",""\u0024object"":{""$id"":""2"",""Hello"":""World""}}", json);
//$ Key in ExtensionData dictionary
var poco = new ClassWithExtensionData
{
ExtensionData =
{
["$string"] = "Hello world",
["$object"] = new ClassWithExtensionData
{
Hello = "World"
}
}
};
json = await JsonSerializerWrapperForString.SerializeWrapper(poco, s_serializerOptionsPreserve);
Assert.Equal(@"{""$id"":""1"",""\u0024string"":""Hello world"",""\u0024object"":{""$id"":""2"",""Hello"":""World""}}", json);
//TODO:
//Extend the scenarios to also cover CLR and F# properties with a leading $.
//Also add scenarios where a NamingPolicy (DictionaryKey or Property) appends the leading $.
}