diff --git a/tests/ts/reflection/field.js b/tests/ts/reflection/field.js
new file mode 100644
index 0000000..107b77b
--- /dev/null
+++ b/tests/ts/reflection/field.js
@@ -0,0 +1,284 @@
+// automatically generated by the FlatBuffers compiler, do not modify
+import * as flatbuffers from 'flatbuffers';
+import { KeyValue } from '../reflection/key-value.js';
+import { Type } from '../reflection/type.js';
+export class Field {
+    constructor() {
+        this.bb = null;
+        this.bb_pos = 0;
+    }
+    __init(i, bb) {
+        this.bb_pos = i;
+        this.bb = bb;
+        return this;
+    }
+    static getRootAsField(bb, obj) {
+        return (obj || new Field()).__init(bb.readInt32(bb.position()) + bb.position(), bb);
+    }
+    static getSizePrefixedRootAsField(bb, obj) {
+        bb.setPosition(bb.position() + flatbuffers.SIZE_PREFIX_LENGTH);
+        return (obj || new Field()).__init(bb.readInt32(bb.position()) + bb.position(), bb);
+    }
+    name(optionalEncoding) {
+        const offset = this.bb.__offset(this.bb_pos, 4);
+        return offset ? this.bb.__string(this.bb_pos + offset, optionalEncoding) : null;
+    }
+    type(obj) {
+        const offset = this.bb.__offset(this.bb_pos, 6);
+        return offset ? (obj || new Type()).__init(this.bb.__indirect(this.bb_pos + offset), this.bb) : null;
+    }
+    id() {
+        const offset = this.bb.__offset(this.bb_pos, 8);
+        return offset ? this.bb.readUint16(this.bb_pos + offset) : 0;
+    }
+    mutate_id(value) {
+        const offset = this.bb.__offset(this.bb_pos, 8);
+        if (offset === 0) {
+            return false;
+        }
+        this.bb.writeUint16(this.bb_pos + offset, value);
+        return true;
+    }
+    offset() {
+        const offset = this.bb.__offset(this.bb_pos, 10);
+        return offset ? this.bb.readUint16(this.bb_pos + offset) : 0;
+    }
+    mutate_offset(value) {
+        const offset = this.bb.__offset(this.bb_pos, 10);
+        if (offset === 0) {
+            return false;
+        }
+        this.bb.writeUint16(this.bb_pos + offset, value);
+        return true;
+    }
+    defaultInteger() {
+        const offset = this.bb.__offset(this.bb_pos, 12);
+        return offset ? this.bb.readInt64(this.bb_pos + offset) : BigInt('0');
+    }
+    mutate_default_integer(value) {
+        const offset = this.bb.__offset(this.bb_pos, 12);
+        if (offset === 0) {
+            return false;
+        }
+        this.bb.writeInt64(this.bb_pos + offset, value);
+        return true;
+    }
+    defaultReal() {
+        const offset = this.bb.__offset(this.bb_pos, 14);
+        return offset ? this.bb.readFloat64(this.bb_pos + offset) : 0.0;
+    }
+    mutate_default_real(value) {
+        const offset = this.bb.__offset(this.bb_pos, 14);
+        if (offset === 0) {
+            return false;
+        }
+        this.bb.writeFloat64(this.bb_pos + offset, value);
+        return true;
+    }
+    deprecated() {
+        const offset = this.bb.__offset(this.bb_pos, 16);
+        return offset ? !!this.bb.readInt8(this.bb_pos + offset) : false;
+    }
+    mutate_deprecated(value) {
+        const offset = this.bb.__offset(this.bb_pos, 16);
+        if (offset === 0) {
+            return false;
+        }
+        this.bb.writeInt8(this.bb_pos + offset, +value);
+        return true;
+    }
+    required() {
+        const offset = this.bb.__offset(this.bb_pos, 18);
+        return offset ? !!this.bb.readInt8(this.bb_pos + offset) : false;
+    }
+    mutate_required(value) {
+        const offset = this.bb.__offset(this.bb_pos, 18);
+        if (offset === 0) {
+            return false;
+        }
+        this.bb.writeInt8(this.bb_pos + offset, +value);
+        return true;
+    }
+    key() {
+        const offset = this.bb.__offset(this.bb_pos, 20);
+        return offset ? !!this.bb.readInt8(this.bb_pos + offset) : false;
+    }
+    mutate_key(value) {
+        const offset = this.bb.__offset(this.bb_pos, 20);
+        if (offset === 0) {
+            return false;
+        }
+        this.bb.writeInt8(this.bb_pos + offset, +value);
+        return true;
+    }
+    attributes(index, obj) {
+        const offset = this.bb.__offset(this.bb_pos, 22);
+        return offset ? (obj || new KeyValue()).__init(this.bb.__indirect(this.bb.__vector(this.bb_pos + offset) + index * 4), this.bb) : null;
+    }
+    attributesLength() {
+        const offset = this.bb.__offset(this.bb_pos, 22);
+        return offset ? this.bb.__vector_len(this.bb_pos + offset) : 0;
+    }
+    documentation(index, optionalEncoding) {
+        const offset = this.bb.__offset(this.bb_pos, 24);
+        return offset ? this.bb.__string(this.bb.__vector(this.bb_pos + offset) + index * 4, optionalEncoding) : null;
+    }
+    documentationLength() {
+        const offset = this.bb.__offset(this.bb_pos, 24);
+        return offset ? this.bb.__vector_len(this.bb_pos + offset) : 0;
+    }
+    optional() {
+        const offset = this.bb.__offset(this.bb_pos, 26);
+        return offset ? !!this.bb.readInt8(this.bb_pos + offset) : false;
+    }
+    mutate_optional(value) {
+        const offset = this.bb.__offset(this.bb_pos, 26);
+        if (offset === 0) {
+            return false;
+        }
+        this.bb.writeInt8(this.bb_pos + offset, +value);
+        return true;
+    }
+    /**
+     * Number of padding octets to always add after this field. Structs only.
+     */
+    padding() {
+        const offset = this.bb.__offset(this.bb_pos, 28);
+        return offset ? this.bb.readUint16(this.bb_pos + offset) : 0;
+    }
+    mutate_padding(value) {
+        const offset = this.bb.__offset(this.bb_pos, 28);
+        if (offset === 0) {
+            return false;
+        }
+        this.bb.writeUint16(this.bb_pos + offset, value);
+        return true;
+    }
+    static getFullyQualifiedName() {
+        return 'reflection_Field';
+    }
+    static startField(builder) {
+        builder.startObject(13);
+    }
+    static addName(builder, nameOffset) {
+        builder.addFieldOffset(0, nameOffset, 0);
+    }
+    static addType(builder, typeOffset) {
+        builder.addFieldOffset(1, typeOffset, 0);
+    }
+    static addId(builder, id) {
+        builder.addFieldInt16(2, id, 0);
+    }
+    static addOffset(builder, offset) {
+        builder.addFieldInt16(3, offset, 0);
+    }
+    static addDefaultInteger(builder, defaultInteger) {
+        builder.addFieldInt64(4, defaultInteger, BigInt('0'));
+    }
+    static addDefaultReal(builder, defaultReal) {
+        builder.addFieldFloat64(5, defaultReal, 0.0);
+    }
+    static addDeprecated(builder, deprecated) {
+        builder.addFieldInt8(6, +deprecated, +false);
+    }
+    static addRequired(builder, required) {
+        builder.addFieldInt8(7, +required, +false);
+    }
+    static addKey(builder, key) {
+        builder.addFieldInt8(8, +key, +false);
+    }
+    static addAttributes(builder, attributesOffset) {
+        builder.addFieldOffset(9, attributesOffset, 0);
+    }
+    static createAttributesVector(builder, data) {
+        builder.startVector(4, data.length, 4);
+        for (let i = data.length - 1; i >= 0; i--) {
+            builder.addOffset(data[i]);
+        }
+        return builder.endVector();
+    }
+    static startAttributesVector(builder, numElems) {
+        builder.startVector(4, numElems, 4);
+    }
+    static addDocumentation(builder, documentationOffset) {
+        builder.addFieldOffset(10, documentationOffset, 0);
+    }
+    static createDocumentationVector(builder, data) {
+        builder.startVector(4, data.length, 4);
+        for (let i = data.length - 1; i >= 0; i--) {
+            builder.addOffset(data[i]);
+        }
+        return builder.endVector();
+    }
+    static startDocumentationVector(builder, numElems) {
+        builder.startVector(4, numElems, 4);
+    }
+    static addOptional(builder, optional) {
+        builder.addFieldInt8(11, +optional, +false);
+    }
+    static addPadding(builder, padding) {
+        builder.addFieldInt16(12, padding, 0);
+    }
+    static endField(builder) {
+        const offset = builder.endObject();
+        builder.requiredField(offset, 4); // name
+        builder.requiredField(offset, 6); // type
+        return offset;
+    }
+    unpack() {
+        return new FieldT(this.name(), (this.type() !== null ? this.type().unpack() : null), this.id(), this.offset(), this.defaultInteger(), this.defaultReal(), this.deprecated(), this.required(), this.key(), this.bb.createObjList(this.attributes.bind(this), this.attributesLength()), this.bb.createScalarList(this.documentation.bind(this), this.documentationLength()), this.optional(), this.padding());
+    }
+    unpackTo(_o) {
+        _o.name = this.name();
+        _o.type = (this.type() !== null ? this.type().unpack() : null);
+        _o.id = this.id();
+        _o.offset = this.offset();
+        _o.defaultInteger = this.defaultInteger();
+        _o.defaultReal = this.defaultReal();
+        _o.deprecated = this.deprecated();
+        _o.required = this.required();
+        _o.key = this.key();
+        _o.attributes = this.bb.createObjList(this.attributes.bind(this), this.attributesLength());
+        _o.documentation = this.bb.createScalarList(this.documentation.bind(this), this.documentationLength());
+        _o.optional = this.optional();
+        _o.padding = this.padding();
+    }
+}
+export class FieldT {
+    constructor(name = null, type = null, id = 0, offset = 0, defaultInteger = BigInt('0'), defaultReal = 0.0, deprecated = false, required = false, key = false, attributes = [], documentation = [], optional = false, padding = 0) {
+        this.name = name;
+        this.type = type;
+        this.id = id;
+        this.offset = offset;
+        this.defaultInteger = defaultInteger;
+        this.defaultReal = defaultReal;
+        this.deprecated = deprecated;
+        this.required = required;
+        this.key = key;
+        this.attributes = attributes;
+        this.documentation = documentation;
+        this.optional = optional;
+        this.padding = padding;
+    }
+    pack(builder) {
+        const name = (this.name !== null ? builder.createString(this.name) : 0);
+        const type = (this.type !== null ? this.type.pack(builder) : 0);
+        const attributes = Field.createAttributesVector(builder, builder.createObjectOffsetList(this.attributes));
+        const documentation = Field.createDocumentationVector(builder, builder.createObjectOffsetList(this.documentation));
+        Field.startField(builder);
+        Field.addName(builder, name);
+        Field.addType(builder, type);
+        Field.addId(builder, this.id);
+        Field.addOffset(builder, this.offset);
+        Field.addDefaultInteger(builder, this.defaultInteger);
+        Field.addDefaultReal(builder, this.defaultReal);
+        Field.addDeprecated(builder, this.deprecated);
+        Field.addRequired(builder, this.required);
+        Field.addKey(builder, this.key);
+        Field.addAttributes(builder, attributes);
+        Field.addDocumentation(builder, documentation);
+        Field.addOptional(builder, this.optional);
+        Field.addPadding(builder, this.padding);
+        return Field.endField(builder);
+    }
+}