Polymorphic record tests

src/Aviationexam.GeneratedJsonConverters.SourceGenerator.Target.Tests/Aviationexam.GeneratedJsonConverters.SourceGenerator.Target.Tests.csproj

@@ -1,28 +1,28 @@
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-    <IsPackable>false</IsPackable>
-  </PropertyGroup>
-
-  <Import Project="..\WarningConfiguration.targets" />
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-
-  <ItemGroup>
-    <ProjectReference Include="..\Aviationexam.GeneratedJsonConverters.SourceGenerator.Target\Aviationexam.GeneratedJsonConverters.SourceGenerator.Target.csproj" />
-    <ProjectReference Include="..\Aviationexam.GeneratedJsonConverters.SourceGenerator\Aviationexam.GeneratedJsonConverters.SourceGenerator.csproj" />
-  </ItemGroup>
-
-</Project>
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFrameworks>net7.0;net8.0</TargetFrameworks>
+    <LangVersion>12.0</LangVersion>
+    <Nullable>enable</Nullable>
+    <ProjectName>Aviationexam.GeneratedJsonConverters.SourceGenerator.Target.Tests</ProjectName>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <Import Project="..\WarningConfiguration.targets" />
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
+    <PackageReference Include="System.Text.Json" Version="8.0.4" />
+    <PackageReference Include="xunit" Version="2.9.0" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Aviationexam.GeneratedJsonConverters.SourceGenerator.Target\Aviationexam.GeneratedJsonConverters.SourceGenerator.Target.csproj" />
+    <ProjectReference Include="..\Aviationexam.GeneratedJsonConverters.SourceGenerator\Aviationexam.GeneratedJsonConverters.SourceGenerator.csproj" />
+  </ItemGroup>
+
+</Project>

src/Aviationexam.GeneratedJsonConverters.SourceGenerator.Tests/Aviationexam.GeneratedJsonConverters.SourceGenerator.Tests.csproj

@@ -1,42 +1,42 @@
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-    <None Update="JsonPolymorphicConverterGeneratorSnapshotTests.*.g.verified.cs">
-      <DependentUpon>JsonPolymorphicConverterGeneratorSnapshotTests.cs</DependentUpon>
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-    <None Update="EnumJsonConverterIncrementalGeneratorSnapshotTests.*.g.verified.cs">
-      <DependentUpon>EnumJsonConverterIncrementalGeneratorSnapshotTests.cs</DependentUpon>
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-
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+
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+    <TargetFrameworks>net7.0;net8.0</TargetFrameworks>
+    <LangVersion>12.0</LangVersion>
+    <Nullable>enable</Nullable>
+    <ProjectName>Aviationexam.GeneratedJsonConverters.SourceGenerator.Tests</ProjectName>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <Import Project="..\WarningConfiguration.targets" />
+
+  <ItemGroup>
+    <PackageReference Include="H.Generators.Tests.Extensions" Version="1.22.0" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.11.0" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
+    <PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0" />
+    <PackageReference Include="System.Text.Json" Version="8.0.4" />
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+      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Aviationexam.GeneratedJsonConverters.SourceGenerator\Aviationexam.GeneratedJsonConverters.SourceGenerator.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="JsonPolymorphicConverterGeneratorSnapshotTests.*.g.verified.cs">
+      <DependentUpon>JsonPolymorphicConverterGeneratorSnapshotTests.cs</DependentUpon>
+    </None>
+    <None Update="EnumJsonConverterIncrementalGeneratorSnapshotTests.*.g.verified.cs">
+      <DependentUpon>EnumJsonConverterIncrementalGeneratorSnapshotTests.cs</DependentUpon>
+    </None>
+  </ItemGroup>
+
+</Project>

src/Aviationexam.GeneratedJsonConverters.SourceGenerator.Tests/JsonPolymorphicConverterGeneratorSnapshotTests.SimpleRecordWorks#BaseContractJsonPolymorphicConverter.g.verified.cs

@@ -0,0 +1,40 @@
+//HintName: BaseContractJsonPolymorphicConverter.g.cs
+#nullable enable
+
+namespace ApplicationNamespace;
+
+internal class BaseContractJsonPolymorphicConverter : Aviationexam.GeneratedJsonConverters.PolymorphicJsonConvertor<global::ApplicationNamespace.Contracts.BaseContract>
+{
+    protected override System.ReadOnlySpan<byte> GetDiscriminatorPropertyName() => "$type"u8;
+
+    protected override System.Type GetTypeForDiscriminator(
+        Aviationexam.GeneratedJsonConverters.IDiscriminatorStruct discriminator
+    ) => discriminator switch
+    {
+        Aviationexam.GeneratedJsonConverters.DiscriminatorStruct<string> { Value: "LeafContract" } => typeof(ApplicationNamespace.Contracts.LeafContract),
+        Aviationexam.GeneratedJsonConverters.DiscriminatorStruct<int> { Value: 2 } => typeof(ApplicationNamespace.Contracts.AnotherLeafContract),
+        Aviationexam.GeneratedJsonConverters.DiscriminatorStruct<string> { Value: "AnonymousLeafContract" } => typeof(ApplicationNamespace.Contracts.AnonymousLeafContract),
+
+        _ => throw new System.ArgumentOutOfRangeException(nameof(discriminator), discriminator, null),
+    };
+
+    protected override Aviationexam.GeneratedJsonConverters.IDiscriminatorStruct GetDiscriminatorForType(
+        System.Type type
+    )
+    {
+        if (type == typeof(ApplicationNamespace.Contracts.LeafContract))
+        {
+            return new Aviationexam.GeneratedJsonConverters.DiscriminatorStruct<string>("LeafContract");
+        }
+        if (type == typeof(ApplicationNamespace.Contracts.AnotherLeafContract))
+        {
+            return new Aviationexam.GeneratedJsonConverters.DiscriminatorStruct<int>(2);
+        }
+        if (type == typeof(ApplicationNamespace.Contracts.AnonymousLeafContract))
+        {
+            return new Aviationexam.GeneratedJsonConverters.DiscriminatorStruct<string>("AnonymousLeafContract");
+        }
+
+        throw new System.ArgumentOutOfRangeException(nameof(type), type, null);
+    }
+}

src/Aviationexam.GeneratedJsonConverters.SourceGenerator.Tests/JsonPolymorphicConverterGeneratorSnapshotTests.SimpleRecordWorks#DiscriminatorStruct.g.verified.cs

@@ -0,0 +1,16 @@
+//HintName: DiscriminatorStruct.g.cs
+// ReSharper disable once RedundantNullableDirective
+
+#nullable enable
+
+namespace Aviationexam.GeneratedJsonConverters;
+
+internal readonly struct DiscriminatorStruct<T> : IDiscriminatorStruct
+{
+    public T Value { get; init; }
+
+    public DiscriminatorStruct(T value)
+    {
+        Value = value;
+    }
+}

src/Aviationexam.GeneratedJsonConverters.SourceGenerator.Tests/JsonPolymorphicConverterGeneratorSnapshotTests.SimpleRecordWorks#IDiscriminatorStruct.g.verified.cs

@@ -0,0 +1,8 @@
+//HintName: IDiscriminatorStruct.g.cs
+// ReSharper disable once RedundantNullableDirective
+
+#nullable enable
+
+namespace Aviationexam.GeneratedJsonConverters;
+
+internal interface IDiscriminatorStruct;

src/Aviationexam.GeneratedJsonConverters.SourceGenerator.Tests/JsonPolymorphicConverterGeneratorSnapshotTests.SimpleRecordWorks#JsonDerivedTypeAttribute.g.verified.cs

@@ -0,0 +1,82 @@
+//HintName: JsonDerivedTypeAttribute.g.cs
+#nullable enable
+
+namespace Aviationexam.GeneratedJsonConverters.Attributes;
+
+/// <summary>
+/// This is a copy of System.Text.Json.Serialization.JsonDerivedTypeAttribute.
+/// It's purpose is to replace this attribute to silence System.Text.Json.Serialization.Metadata.PolymorphicTypeResolver{ThrowHelper.ThrowNotSupportedException_BaseConverterDoesNotSupportMetadata}
+///
+/// When placed on a type declaration, indicates that the specified subtype should be opted into polymorphic serialization.
+/// </summary>
+[System.AttributeUsage(System.AttributeTargets.Class | System.AttributeTargets.Interface, AllowMultiple = true, Inherited = false)]
+internal class JsonDerivedTypeAttribute : System.Text.Json.Serialization.JsonAttribute
+{
+    /// <summary>
+    /// Initializes a new attribute with specified parameters.
+    /// </summary>
+    /// <param name="derivedType">A derived type that should be supported in polymorphic serialization of the declared based type.</param>
+    public JsonDerivedTypeAttribute(System.Type derivedType)
+    {
+        DerivedType = derivedType;
+    }
+
+    /// <summary>
+    /// Initializes a new attribute with specified parameters.
+    /// </summary>
+    /// <param name="derivedType">A derived type that should be supported in polymorphic serialization of the declared base type.</param>
+    /// <param name="typeDiscriminator">The type discriminator identifier to be used for the serialization of the subtype.</param>
+    public JsonDerivedTypeAttribute(System.Type derivedType, string typeDiscriminator)
+    {
+        DerivedType = derivedType;
+        TypeDiscriminator = typeDiscriminator;
+    }
+
+    /// <summary>
+    /// Initializes a new attribute with specified parameters.
+    /// </summary>
+    /// <param name="derivedType">A derived type that should be supported in polymorphic serialization of the declared base type.</param>
+    /// <param name="typeDiscriminator">The type discriminator identifier to be used for the serialization of the subtype.</param>
+    public JsonDerivedTypeAttribute(System.Type derivedType, int typeDiscriminator)
+    {
+        DerivedType = derivedType;
+        TypeDiscriminator = typeDiscriminator;
+    }
+
+    /// <summary>
+    /// A derived type that should be supported in polymorphic serialization of the declared base type.
+    /// </summary>
+    public System.Type DerivedType { get; }
+
+    /// <summary>
+    /// The type discriminator identifier to be used for the serialization of the subtype.
+    /// </summary>
+    public object? TypeDiscriminator { get; }
+}
+
+[System.AttributeUsage(System.AttributeTargets.Class | System.AttributeTargets.Interface, AllowMultiple = true, Inherited = false)]
+internal class JsonDerivedTypeAttribute<TDerivedType> : JsonDerivedTypeAttribute
+{
+    /// <summary>
+    /// Initializes a new attribute with specified parameters.
+    /// </summary>
+    public JsonDerivedTypeAttribute() : base(typeof(TDerivedType))
+    {
+    }
+
+    /// <summary>
+    /// Initializes a new attribute with specified parameters.
+    /// </summary>
+    /// <param name="typeDiscriminator">The type discriminator identifier to be used for the serialization of the subtype.</param>
+    public JsonDerivedTypeAttribute(string typeDiscriminator) : base(typeof(TDerivedType), typeDiscriminator)
+    {
+    }
+
+    /// <summary>
+    /// Initializes a new attribute with specified parameters.
+    /// </summary>
+    /// <param name="typeDiscriminator">The type discriminator identifier to be used for the serialization of the subtype.</param>
+    public JsonDerivedTypeAttribute(int typeDiscriminator) : base(typeof(TDerivedType), typeDiscriminator)
+    {
+    }
+}

src/Aviationexam.GeneratedJsonConverters.SourceGenerator.Tests/JsonPolymorphicConverterGeneratorSnapshotTests.SimpleRecordWorks#JsonPolymorphicAttribute.g.verified.cs

@@ -0,0 +1,32 @@
+//HintName: JsonPolymorphicAttribute.g.cs
+#nullable enable
+
+namespace Aviationexam.GeneratedJsonConverters.Attributes;
+
+/// <summary>
+/// This is a copy of System.Text.Json.Serialization.JsonPolymorphicAttribute.
+/// It's purpose is to replace this attribute to silence System.Text.Json.Serialization.Metadata.PolymorphicTypeResolver{ThrowHelper.ThrowNotSupportedException_BaseConverterDoesNotSupportMetadata}
+///
+/// When placed on a type, indicates that the type should be serialized polymorphically.
+/// </summary>
+[System.AttributeUsage(System.AttributeTargets.Class | System.AttributeTargets.Interface, AllowMultiple = false, Inherited = false)]
+internal sealed class JsonPolymorphicAttribute : System.Text.Json.Serialization.JsonAttribute
+{
+    /// <summary>
+    /// Gets or sets a custom type discriminator property name for the polymorhic type.
+    /// Uses the default '$type' property name if left unset.
+    /// </summary>
+    public string? TypeDiscriminatorPropertyName { get; set; }
+
+    /// <summary>
+    /// Gets or sets the behavior when serializing an undeclared derived runtime type.
+    /// </summary>
+    public System.Text.Json.Serialization.JsonUnknownDerivedTypeHandling UnknownDerivedTypeHandling { get; set; }
+
+    /// <summary>
+    /// When set to <see langword="true"/>, instructs the deserializer to ignore any
+    /// unrecognized type discriminator id's and reverts to the contract of the base type.
+    /// Otherwise, it will fail the deserialization.
+    /// </summary>
+    public bool IgnoreUnrecognizedTypeDiscriminators { get; set; }
+}

src/Aviationexam.GeneratedJsonConverters.SourceGenerator.Tests/JsonPolymorphicConverterGeneratorSnapshotTests.SimpleRecordWorks#MyJsonSerializerContext.g.verified.cs

@@ -0,0 +1,22 @@
+//HintName: MyJsonSerializerContext.g.cs
+#nullable enable
+
+namespace ApplicationNamespace;
+
+public partial class MyJsonSerializerContext
+{
+    public static System.Collections.Generic.IReadOnlyCollection<System.Text.Json.Serialization.JsonConverter> GetPolymorphicConverters() => new System.Text.Json.Serialization.JsonConverter[]
+    {
+        new ApplicationNamespace.BaseContractJsonPolymorphicConverter(),
+    };
+
+    public static void UsePolymorphicConverters(
+        System.Collections.Generic.ICollection<System.Text.Json.Serialization.JsonConverter> optionsConverters
+    )
+    {
+        foreach (var converter in GetPolymorphicConverters())
+        {
+            optionsConverters.Add(converter);
+        }
+    }
+}