Add basic regression testing for .NET 6 source generated JsonSerializerContext.

src/libraries/System.Text.Json/tests/System.Text.Json.Tests/SourceGenRegressionTests/Net60/Net60GeneratedContext.ClassWithCustomConverter.g.cs

@@ -0,0 +1,46 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+// Source files represent a source generated JsonSerializerContext as produced by the .NET 6 SDK.
+// Used to validate correctness of contexts generated by previous SDKs against the current System.Text.Json runtime components.
+// Unless absolutely necessary DO NOT MODIFY any of these files -- it would invalidate the purpose of the regression tests.
+
+// <auto-generated/>
+#nullable enable
+
+// Suppress warnings about [Obsolete] member usage in generated code.
+#pragma warning disable CS0618
+
+namespace System.Text.Json.Tests.SourceGenRegressionTests.Net60
+{
+    public partial class Net60GeneratedContext
+    {
+        private global::System.Text.Json.Serialization.Metadata.JsonTypeInfo<global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.ClassWithCustomConverter>? _ClassWithCustomConverter;
+        public global::System.Text.Json.Serialization.Metadata.JsonTypeInfo<global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.ClassWithCustomConverter> ClassWithCustomConverter
+        {
+            get
+            {
+                if (_ClassWithCustomConverter == null)
+                {
+                    global::System.Text.Json.Serialization.JsonConverter? customConverter;
+                    if (Options.Converters.Count > 0 && (customConverter = GetRuntimeProvidedCustomConverter(typeof(global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.ClassWithCustomConverter))) != null)
+                    {
+                        _ClassWithCustomConverter = global::System.Text.Json.Serialization.Metadata.JsonMetadataServices.CreateValueInfo<global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.ClassWithCustomConverter>(Options, customConverter);
+                    }
+                    else
+                    {
+                        global::System.Text.Json.Serialization.JsonConverter converter = new global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.ClassWithCustomConverter.CustomConverter();
+                                global::System.Type typeToConvert = typeof(global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.ClassWithCustomConverter);
+                                    if (!converter.CanConvert(typeToConvert))
+                                    {
+                                        throw new global::System.InvalidOperationException(string.Format("The converter '{0}' is not compatible with the type '{1}'.", converter.GetType(), typeToConvert));
+                                    }
+                                _ClassWithCustomConverter = global::System.Text.Json.Serialization.Metadata.JsonMetadataServices.CreateValueInfo<global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.ClassWithCustomConverter> (Options, converter); 
+                    }
+                }
+
+                return _ClassWithCustomConverter;
+            }
+        }
+    }
+}

src/libraries/System.Text.Json/tests/System.Text.Json.Tests/SourceGenRegressionTests/Net60/Net60GeneratedContext.DateTimeOffset.g.cs

@@ -0,0 +1,40 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+// Source files represent a source generated JsonSerializerContext as produced by the .NET 6 SDK.
+// Used to validate correctness of contexts generated by previous SDKs against the current System.Text.Json runtime components.
+// Unless absolutely necessary DO NOT MODIFY any of these files -- it would invalidate the purpose of the regression tests.
+
+// <auto-generated/>
+#nullable enable
+
+// Suppress warnings about [Obsolete] member usage in generated code.
+#pragma warning disable CS0618
+
+namespace System.Text.Json.Tests.SourceGenRegressionTests.Net60
+{
+    public partial class Net60GeneratedContext
+    {
+        private global::System.Text.Json.Serialization.Metadata.JsonTypeInfo<global::System.DateTimeOffset>? _DateTimeOffset;
+        public global::System.Text.Json.Serialization.Metadata.JsonTypeInfo<global::System.DateTimeOffset> DateTimeOffset
+        {
+            get
+            {
+                if (_DateTimeOffset == null)
+                {
+                    global::System.Text.Json.Serialization.JsonConverter? customConverter;
+                    if (Options.Converters.Count > 0 && (customConverter = GetRuntimeProvidedCustomConverter(typeof(global::System.DateTimeOffset))) != null)
+                    {
+                        _DateTimeOffset = global::System.Text.Json.Serialization.Metadata.JsonMetadataServices.CreateValueInfo<global::System.DateTimeOffset>(Options, customConverter);
+                    }
+                    else
+                    {
+                        _DateTimeOffset = global::System.Text.Json.Serialization.Metadata.JsonMetadataServices.CreateValueInfo<global::System.DateTimeOffset>(Options, global::System.Text.Json.Serialization.Metadata.JsonMetadataServices.DateTimeOffsetConverter);
+                    }
+                }
+
+                return _DateTimeOffset;
+            }
+        }
+    }
+}

src/libraries/System.Text.Json/tests/System.Text.Json.Tests/SourceGenRegressionTests/Net60/Net60GeneratedContext.DictionaryStringHighLowTemps.g.cs

@@ -0,0 +1,69 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+// Source files represent a source generated JsonSerializerContext as produced by the .NET 6 SDK.
+// Used to validate correctness of contexts generated by previous SDKs against the current System.Text.Json runtime components.
+// Unless absolutely necessary DO NOT MODIFY any of these files -- it would invalidate the purpose of the regression tests.
+
+// <auto-generated/>
+#nullable enable
+
+// Suppress warnings about [Obsolete] member usage in generated code.
+#pragma warning disable CS0618
+
+namespace System.Text.Json.Tests.SourceGenRegressionTests.Net60
+{
+    public partial class Net60GeneratedContext
+    {
+        private global::System.Text.Json.Serialization.Metadata.JsonTypeInfo<global::System.Collections.Generic.Dictionary<global::System.String, global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps>>? _DictionaryStringHighLowTemps;
+        public global::System.Text.Json.Serialization.Metadata.JsonTypeInfo<global::System.Collections.Generic.Dictionary<global::System.String, global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps>> DictionaryStringHighLowTemps
+        {
+            get
+            {
+                if (_DictionaryStringHighLowTemps == null)
+                {
+                    global::System.Text.Json.Serialization.JsonConverter? customConverter;
+                    if (Options.Converters.Count > 0 && (customConverter = GetRuntimeProvidedCustomConverter(typeof(global::System.Collections.Generic.Dictionary<global::System.String, global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps>))) != null)
+                    {
+                        _DictionaryStringHighLowTemps = global::System.Text.Json.Serialization.Metadata.JsonMetadataServices.CreateValueInfo<global::System.Collections.Generic.Dictionary<global::System.String, global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps>>(Options, customConverter);
+                    }
+                    else
+                    {
+                        global::System.Text.Json.Serialization.Metadata.JsonCollectionInfoValues<global::System.Collections.Generic.Dictionary<global::System.String, global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps>> info = new global::System.Text.Json.Serialization.Metadata.JsonCollectionInfoValues<global::System.Collections.Generic.Dictionary<global::System.String, global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps>>()
+                            {
+                                ObjectCreator = () => new global::System.Collections.Generic.Dictionary<global::System.String, global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps>(),
+                                KeyInfo = this.String,
+                                ElementInfo = this.HighLowTemps,
+                                NumberHandling = default,
+                                SerializeHandler = DictionaryStringHighLowTempsSerializeHandler
+                            };
+
+                            _DictionaryStringHighLowTemps = global::System.Text.Json.Serialization.Metadata.JsonMetadataServices.CreateDictionaryInfo<global::System.Collections.Generic.Dictionary<global::System.String, global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps>, global::System.String, global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps>(Options, info);
+
+                    }
+                }
+
+                return _DictionaryStringHighLowTemps;
+            }
+        }
+
+        private static void DictionaryStringHighLowTempsSerializeHandler(global::System.Text.Json.Utf8JsonWriter writer, global::System.Collections.Generic.Dictionary<global::System.String, global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps>? value)
+        {
+            if (value == null)
+            {
+                writer.WriteNullValue();
+                return;
+            }
+
+            writer.WriteStartObject();
+
+            foreach (global::System.Collections.Generic.KeyValuePair<global::System.String, global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps> pair in value)
+            {
+                writer.WritePropertyName(pair.Key);
+                HighLowTempsSerializeHandler(writer, pair.Value!);
+            }
+
+            writer.WriteEndObject();
+        }
+    }
+}

src/libraries/System.Text.Json/tests/System.Text.Json.Tests/SourceGenRegressionTests/Net60/Net60GeneratedContext.GetJsonTypeInfo.g.cs

@@ -0,0 +1,33 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+// Source files represent a source generated JsonSerializerContext as produced by the .NET 6 SDK.
+// Used to validate correctness of contexts generated by previous SDKs against the current System.Text.Json runtime components.
+// Unless absolutely necessary DO NOT MODIFY any of these files -- it would invalidate the purpose of the regression tests.
+
+// <auto-generated/>
+#nullable enable
+
+// Suppress warnings about [Obsolete] member usage in generated code.
+#pragma warning disable CS0618
+
+namespace System.Text.Json.Tests.SourceGenRegressionTests.Net60
+{
+    public partial class Net60GeneratedContext
+    {
+        public override global::System.Text.Json.Serialization.Metadata.JsonTypeInfo GetTypeInfo(global::System.Type type)
+        {
+            if (type == typeof(global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.WeatherForecastWithPOCOs))
+            {
+                return this.WeatherForecastWithPOCOs;
+            }
+
+            if (type == typeof(global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.ClassWithCustomConverter))
+            {
+                return this.ClassWithCustomConverter;
+            }
+
+            return null!;
+        }
+    }
+}

src/libraries/System.Text.Json/tests/System.Text.Json.Tests/SourceGenRegressionTests/Net60/Net60GeneratedContext.HighLowTemps.g.cs

@@ -0,0 +1,115 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+// Source files represent a source generated JsonSerializerContext as produced by the .NET 6 SDK.
+// Used to validate correctness of contexts generated by previous SDKs against the current System.Text.Json runtime components.
+// Unless absolutely necessary DO NOT MODIFY any of these files -- it would invalidate the purpose of the regression tests.
+
+// <auto-generated/>
+#nullable enable
+
+// Suppress warnings about [Obsolete] member usage in generated code.
+#pragma warning disable CS0618
+
+namespace System.Text.Json.Tests.SourceGenRegressionTests.Net60
+{
+    public partial class Net60GeneratedContext
+    {
+        private global::System.Text.Json.Serialization.Metadata.JsonTypeInfo<global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps>? _HighLowTemps;
+        public global::System.Text.Json.Serialization.Metadata.JsonTypeInfo<global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps> HighLowTemps
+        {
+            get
+            {
+                if (_HighLowTemps == null)
+                {
+                    global::System.Text.Json.Serialization.JsonConverter? customConverter;
+                    if (Options.Converters.Count > 0 && (customConverter = GetRuntimeProvidedCustomConverter(typeof(global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps))) != null)
+                    {
+                        _HighLowTemps = global::System.Text.Json.Serialization.Metadata.JsonMetadataServices.CreateValueInfo<global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps>(Options, customConverter);
+                    }
+                    else
+                    {
+                        global::System.Text.Json.Serialization.Metadata.JsonObjectInfoValues<global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps> objectInfo = new global::System.Text.Json.Serialization.Metadata.JsonObjectInfoValues<global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps>()
+                        {
+                            ObjectCreator = static () => new global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps(),
+                            ObjectWithParameterizedConstructorCreator = null,
+                            PropertyMetadataInitializer = HighLowTempsPropInit,
+                            ConstructorParameterMetadataInitializer = null,
+                            NumberHandling = default,
+                            SerializeHandler = HighLowTempsSerializeHandler
+                        };
+
+                        _HighLowTemps = global::System.Text.Json.Serialization.Metadata.JsonMetadataServices.CreateObjectInfo<global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps>(Options, objectInfo);
+                    }
+                }
+
+                return _HighLowTemps;
+            }
+        }
+
+        private static global::System.Text.Json.Serialization.Metadata.JsonPropertyInfo[] HighLowTempsPropInit(global::System.Text.Json.Serialization.JsonSerializerContext context)
+        {
+            global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.Net60GeneratedContext jsonContext = (global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.Net60GeneratedContext)context;
+            global::System.Text.Json.JsonSerializerOptions options = context.Options;
+
+            global::System.Text.Json.Serialization.Metadata.JsonPropertyInfo[] properties = new global::System.Text.Json.Serialization.Metadata.JsonPropertyInfo[2];
+
+            global::System.Text.Json.Serialization.Metadata.JsonPropertyInfoValues<global::System.Int32> info0 = new global::System.Text.Json.Serialization.Metadata.JsonPropertyInfoValues<global::System.Int32>()
+            {
+                IsProperty = true,
+                IsPublic = true,
+                IsVirtual = false,
+                DeclaringType = typeof(global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps),
+                PropertyTypeInfo = jsonContext.Int32,
+                Converter = null,
+                Getter = static (obj) => ((global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps)obj).High,
+                Setter = static (obj, value) => ((global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps)obj).High = value!,
+                IgnoreCondition = null,
+                HasJsonInclude = false,
+                IsExtensionData = false,
+                NumberHandling = default,
+                PropertyName = "High",
+                JsonPropertyName = null
+            };
+
+            properties[0] = global::System.Text.Json.Serialization.Metadata.JsonMetadataServices.CreatePropertyInfo<global::System.Int32>(options, info0);
+
+            global::System.Text.Json.Serialization.Metadata.JsonPropertyInfoValues<global::System.Int32> info1 = new global::System.Text.Json.Serialization.Metadata.JsonPropertyInfoValues<global::System.Int32>()
+            {
+                IsProperty = true,
+                IsPublic = true,
+                IsVirtual = false,
+                DeclaringType = typeof(global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps),
+                PropertyTypeInfo = jsonContext.Int32,
+                Converter = null,
+                Getter = static (obj) => ((global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps)obj).Low,
+                Setter = static (obj, value) => ((global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps)obj).Low = value!,
+                IgnoreCondition = null,
+                HasJsonInclude = false,
+                IsExtensionData = false,
+                NumberHandling = default,
+                PropertyName = "Low",
+                JsonPropertyName = null
+            };
+
+            properties[1] = global::System.Text.Json.Serialization.Metadata.JsonMetadataServices.CreatePropertyInfo<global::System.Int32>(options, info1);
+
+            return properties;
+        }
+
+        private static void HighLowTempsSerializeHandler(global::System.Text.Json.Utf8JsonWriter writer, global::System.Text.Json.Tests.SourceGenRegressionTests.Net60.HighLowTemps? value)
+        {
+            if (value == null)
+            {
+                writer.WriteNullValue();
+                return;
+            }
+
+            writer.WriteStartObject();
+            writer.WriteNumber(PropName_High, value.High);
+            writer.WriteNumber(PropName_Low, value.Low);
+
+            writer.WriteEndObject();
+        }
+    }
+}

src/libraries/System.Text.Json/tests/System.Text.Json.Tests/SourceGenRegressionTests/Net60/Net60GeneratedContext.Int32.g.cs

@@ -0,0 +1,40 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+// Source files represent a source generated JsonSerializerContext as produced by the .NET 6 SDK.
+// Used to validate correctness of contexts generated by previous SDKs against the current System.Text.Json runtime components.
+// Unless absolutely necessary DO NOT MODIFY any of these files -- it would invalidate the purpose of the regression tests.
+
+// <auto-generated/>
+#nullable enable
+
+// Suppress warnings about [Obsolete] member usage in generated code.
+#pragma warning disable CS0618
+
+namespace System.Text.Json.Tests.SourceGenRegressionTests.Net60
+{
+    public partial class Net60GeneratedContext
+    {
+        private global::System.Text.Json.Serialization.Metadata.JsonTypeInfo<global::System.Int32>? _Int32;
+        public global::System.Text.Json.Serialization.Metadata.JsonTypeInfo<global::System.Int32> Int32
+        {
+            get
+            {
+                if (_Int32 == null)
+                {
+                    global::System.Text.Json.Serialization.JsonConverter? customConverter;
+                    if (Options.Converters.Count > 0 && (customConverter = GetRuntimeProvidedCustomConverter(typeof(global::System.Int32))) != null)
+                    {
+                        _Int32 = global::System.Text.Json.Serialization.Metadata.JsonMetadataServices.CreateValueInfo<global::System.Int32>(Options, customConverter);
+                    }
+                    else
+                    {
+                        _Int32 = global::System.Text.Json.Serialization.Metadata.JsonMetadataServices.CreateValueInfo<global::System.Int32>(Options, global::System.Text.Json.Serialization.Metadata.JsonMetadataServices.Int32Converter);
+                    }
+                }
+
+                return _Int32;
+            }
+        }
+    }
+}