[FAIL] System.Text.Json.Serialization.Tests.CollectionTestsDynamic_AsyncStreamWithSmallBuffer.InvalidPropertyNameFail(policyType: typeof(System.Text.Json.Serialization.Tests.CollectionTests+KeyNameNullPolicy), offendingProperty: "Key")
Assert.Throws() Failure
Expected: typeof(System.InvalidOperationException)
Actual:   typeof(System.NotSupportedException): Metadata for type 'System.Collections.Generic.KeyValuePair`2[System.String,System.String]' was not provided to the serializer. The serializer method used does not support reflection-based creation of serialization-related type metadata. If using source generation, ensure that all root types passed to the serializer have been indicated with 'JsonSerializableAttribute', along with any types that might be serialized polymorphically.
---- System.NotSupportedException : Metadata for type 'System.Collections.Generic.KeyValuePair`2[System.String,System.String]' was not provided to the serializer. The serializer method used does not support reflection-based creation of serialization-related type metadata. If using source generation, ensure that all root types passed to the serializer have been indicated with 'JsonSerializableAttribute', along with any types that might be serialized polymorphically.
   at System.Text.Json.JsonSerializer.SerializeAsync[KeyValuePair`2](Stream , KeyValuePair`2 , JsonSerializerOptions , CancellationToken )
   at System.Text.Json.Serialization.Tests.JsonSerializerWrapper.AsyncStreamSerializerWrapper.SerializeWrapper[KeyValuePair`2](Stream utf8Json, KeyValuePair`2 value, JsonSerializerOptions options)
   at System.Text.Json.Serialization.Tests.StreamingJsonSerializerWrapper.<SerializeWrapper>d__11`1[[System.Collections.Generic.KeyValuePair`2[[System.String, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.String, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext()
   at System.Text.Json.JsonSerializer.SerializeAsync[KeyValuePair`2](Stream , KeyValuePair`2 , JsonSerializerOptions , CancellationToken )
   at System.Text.Json.Serialization.Tests.JsonSerializerWrapper.AsyncStreamSerializerWrapper.SerializeWrapper[KeyValuePair`2](Stream utf8Json, KeyValuePair`2 value, JsonSerializerOptions options)
   at System.Text.Json.Serialization.Tests.CollectionTests.<>c__DisplayClass377_0.<<InvalidPropertyNameFail>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.Text.Json.JsonSerializer.SerializeAsync[KeyValuePair`2](Stream , KeyValuePair`2 , JsonSerializerOptions , CancellationToken )
   at System.Text.Json.Serialization.Tests.JsonSerializerWrapper.AsyncStreamSerializerWrapper.SerializeWrapper[KeyValuePair`2](Stream utf8Json, KeyValuePair`2 value, JsonSerializerOptions options)
----- Inner Stack Trace -----
   at System.Text.Json.JsonSerializer.SerializeAsync[KeyValuePair`2](Stream , KeyValuePair`2 , JsonSerializerOptions , CancellationToken )
   at System.Text.Json.Serialization.Tests.JsonSerializerWrapper.AsyncStreamSerializerWrapper.SerializeWrapper[KeyValuePair`2](Stream utf8Json, KeyValuePair`2 value, JsonSerializerOptions options)
   at System.Text.Json.Serialization.Tests.StreamingJsonSerializerWrapper.<SerializeWrapper>d__11`1[[System.Collections.Generic.KeyValuePair`2[[System.String, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.String, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext()
   at System.Text.Json.JsonSerializer.SerializeAsync[KeyValuePair`2](Stream , KeyValuePair`2 , JsonSerializerOptions , CancellationToken )
   at System.Text.Json.Serialization.Tests.JsonSerializerWrapper.AsyncStreamSerializerWrapper.SerializeWrapper[KeyValuePair`2](Stream utf8Json, KeyValuePair`2 value, JsonSerializerOptions options)
   at System.Text.Json.Serialization.Tests.CollectionTests.<>c__DisplayClass377_0.<<InvalidPropertyNameFail>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.Text.Json.JsonSerializer.SerializeAsync[KeyValuePair`2](Stream , KeyValuePair`2 , JsonSerializerOptions , CancellationToken )
   at System.Text.Json.Serialization.Tests.JsonSerializerWrapper.AsyncStreamSerializerWrapper.SerializeWrapper[KeyValuePair`2](Stream utf8Json, KeyValuePair`2 value, JsonSerializerOptions options)