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using System.Text.Json;
using Jellyfin.Data.Enums;
using Jellyfin.Extensions.Json.Converters;
using Xunit;
namespace Jellyfin.Extensions.Tests.Json.Converters;
public class JsonDefaultStringEnumConverterTests
{
private readonly JsonSerializerOptions _jsonOptions = new() { Converters = { new JsonDefaultStringEnumConverterFactory() } };
/// <summary>
/// Test to ensure that `null` and empty string are deserialized to the default value.
/// </summary>
/// <param name="input">The input string.</param>
/// <param name="output">The expected enum value.</param>
[Theory]
[InlineData("\"\"", MediaStreamProtocol.http)]
[InlineData("\"Http\"", MediaStreamProtocol.http)]
[InlineData("\"Hls\"", MediaStreamProtocol.hls)]
public void Deserialize_Enum_Direct(string input, MediaStreamProtocol output)
{
var value = JsonSerializer.Deserialize<MediaStreamProtocol>(input, _jsonOptions);
Assert.Equal(output, value);
}
/// <summary>
/// Test to ensure that `null` and empty string are deserialized to the default value.
/// </summary>
/// <param name="input">The input string.</param>
/// <param name="output">The expected enum value.</param>
[Theory]
[InlineData(null, MediaStreamProtocol.http)]
[InlineData("\"\"", MediaStreamProtocol.http)]
[InlineData("\"Http\"", MediaStreamProtocol.http)]
[InlineData("\"Hls\"", MediaStreamProtocol.hls)]
public void Deserialize_Enum(string? input, MediaStreamProtocol output)
{
input ??= "null";
var json = $"{{ \"EnumValue\": {input} }}";
var value = JsonSerializer.Deserialize<TestClass>(json, _jsonOptions);
Assert.NotNull(value);
Assert.Equal(output, value.EnumValue);
}
/// <summary>
/// Test to ensure that empty string is deserialized to the default value,
/// and `null` is deserialized to `null`.
/// </summary>
/// <param name="input">The input string.</param>
/// <param name="output">The expected enum value.</param>
[Theory]
[InlineData(null, null)]
[InlineData("\"\"", MediaStreamProtocol.http)]
[InlineData("\"Http\"", MediaStreamProtocol.http)]
[InlineData("\"Hls\"", MediaStreamProtocol.hls)]
public void Deserialize_Enum_Nullable(string? input, MediaStreamProtocol? output)
{
input ??= "null";
var json = $"{{ \"EnumValue\": {input} }}";
var value = JsonSerializer.Deserialize<NullTestClass>(json, _jsonOptions);
Assert.NotNull(value);
Assert.Equal(output, value.EnumValue);
}
/// <summary>
/// Ensures that the roundtrip serialization & deserialization is successful.
/// </summary>
/// <param name="input">Input enum.</param>
/// <param name="output">Output enum.</param>
[Theory]
[InlineData(MediaStreamProtocol.http, MediaStreamProtocol.http)]
[InlineData(MediaStreamProtocol.hls, MediaStreamProtocol.hls)]
public void Enum_RoundTrip(MediaStreamProtocol input, MediaStreamProtocol output)
{
var inputObj = new TestClass { EnumValue = input };
var outputObj = JsonSerializer.Deserialize<TestClass>(JsonSerializer.Serialize(inputObj, _jsonOptions), _jsonOptions);
Assert.NotNull(outputObj);
Assert.Equal(output, outputObj.EnumValue);
}
/// <summary>
/// Ensures that the roundtrip serialization & deserialization is successful, including null.
/// </summary>
/// <param name="input">Input enum.</param>
/// <param name="output">Output enum.</param>
[Theory]
[InlineData(MediaStreamProtocol.http, MediaStreamProtocol.http)]
[InlineData(MediaStreamProtocol.hls, MediaStreamProtocol.hls)]
[InlineData(null, null)]
public void Enum_RoundTrip_Nullable(MediaStreamProtocol? input, MediaStreamProtocol? output)
{
var inputObj = new NullTestClass { EnumValue = input };
var outputObj = JsonSerializer.Deserialize<NullTestClass>(JsonSerializer.Serialize(inputObj, _jsonOptions), _jsonOptions);
Assert.NotNull(outputObj);
Assert.Equal(output, outputObj.EnumValue);
}
private sealed class TestClass
{
public MediaStreamProtocol EnumValue { get; set; }
}
private sealed class NullTestClass
{
public MediaStreamProtocol? EnumValue { get; set; }
}
}
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