lib/js/test/deep-constructor.test.js

function serialize(data) {
  const transport = new Thrift.Transport('/service');
  const protocol = new Thrift.Protocol(transport);
  protocol.writeMessageBegin('', 0, 0);
  data.write(protocol);
  protocol.writeMessageEnd();
  return transport.send_buf;
}

function deserialize(serialized, type) {
  const transport = new Thrift.Transport('/service');
  transport.setRecvBuffer(serialized);
  const protocol = new Thrift.Protocol(transport);
  protocol.readMessageBegin();
  const data = new type();
  data.read(protocol);
  protocol.readMessageEnd();
  return data;
}


function createThriftObj() {

  return new Complex({

    struct_field: new Simple({value: 'a'}),

    struct_list_field: [
      new Simple({value: 'b'}),
      new Simple({value: 'c'})
    ],

    struct_set_field: [
      new Simple({value: 'd'}),
      new Simple({value: 'e'})
    ],

    struct_map_field: {
      A: new Simple({value: 'f'}),
      B: new Simple({value: 'g'})
    },

    struct_nested_containers_field: [
      [
        {
          C: [
            new Simple({value: 'h'}),
            new Simple({value: 'i'})
          ]
        }
      ]
    ],


    struct_nested_containers_field2: {
      D: [
        {
          DA: new Simple({value: 'j'})
        },
        {
          DB: new Simple({value: 'k'})
        }
      ]
    },

    list_of_list_field: [
       ['one', 'two'],
       ['three', 'four'],
       ['five', 'six']
    ]
  }
  );
}


function createJsObj() {

  return {

    struct_field: {value: 'a'},

    struct_list_field: [
      {value: 'b'},
      {value: 'c'}
    ],

    struct_set_field: [
      {value: 'd'},
      {value: 'e'}
    ],

    struct_map_field: {
      A: {value: 'f'},
      B: {value: 'g'}
    },

    struct_nested_containers_field: [
      [
        {
          C: [
            {value: 'h'},
            {value: 'i'}
          ]
        }
      ]
    ],

    struct_nested_containers_field2: {
      D: [
        {
          DA: {value: 'j'}
        },
        {
          DB: {value: 'k'}
        }
      ]
    },

    list_of_list_field: [
      ['one', 'two'],
      ['three', 'four'],
      ['five', 'six']
   ]
  };
}


function assertValues(obj, assert) {
    assert.equal(obj.struct_field.value, 'a');
    assert.equal(obj.struct_list_field[0].value, 'b');
    assert.equal(obj.struct_list_field[1].value, 'c');
    assert.equal(obj.struct_set_field[0].value, 'd');
    assert.equal(obj.struct_set_field[1].value, 'e');
    assert.equal(obj.struct_map_field.A.value, 'f');
    assert.equal(obj.struct_map_field.B.value, 'g');
    assert.equal(obj.struct_nested_containers_field[0][0].C[0].value, 'h');
    assert.equal(obj.struct_nested_containers_field[0][0].C[1].value, 'i');
    assert.equal(obj.struct_nested_containers_field2.D[0].DA.value, 'j');
    assert.equal(obj.struct_nested_containers_field2.D[1].DB.value, 'k');
    assert.equal(obj.list_of_list_field[0][0], 'one');
    assert.equal(obj.list_of_list_field[0][1], 'two');
    assert.equal(obj.list_of_list_field[1][0], 'three');
    assert.equal(obj.list_of_list_field[1][1], 'four');
    assert.equal(obj.list_of_list_field[2][0], 'five');
    assert.equal(obj.list_of_list_field[2][1], 'six');
}

const cases = {

  'Serialize/deserialize simple struct should return equal object': function(assert) {
    const tObj = new Simple({value: 'a'});
    const received = deserialize(serialize(tObj), Simple);
    assert.ok(tObj !== received);
    assert.deepEqual(received, tObj);
  },


  'Serialize/deserialize should return equal object': function(assert) {
    const tObj = createThriftObj();
    const received = deserialize(serialize(tObj), Complex);
    assert.ok(tObj !== received);
    assert.deepEqual(received, tObj);
  },

  'Nested structs and containers initialized from plain js objects should serialize same as if initialized from thrift objects': function(assert) {
    const tObj1 = createThriftObj();
    const tObj2 = new Complex(createJsObj());
    assertValues(tObj2, assert);
    assert.equal(serialize(tObj2), serialize(tObj1));
  },

  'Modifications to args object should not affect constructed Thrift object': function(assert) {

    const args = createJsObj();
    assertValues(args, assert);

    const tObj = new Complex(args);
    assertValues(tObj, assert);

    args.struct_field.value = 'ZZZ';
    args.struct_list_field[0].value = 'ZZZ';
    args.struct_list_field[1].value = 'ZZZ';
    args.struct_set_field[0].value = 'ZZZ';
    args.struct_set_field[1].value = 'ZZZ';
    args.struct_map_field.A.value = 'ZZZ';
    args.struct_map_field.B.value = 'ZZZ';
    args.struct_nested_containers_field[0][0].C[0] = 'ZZZ';
    args.struct_nested_containers_field[0][0].C[1] = 'ZZZ';
    args.struct_nested_containers_field2.D[0].DA = 'ZZZ';
    args.struct_nested_containers_field2.D[0].DB = 'ZZZ';

    assertValues(tObj, assert);
  },

  'nulls are ok': function(assert) {
    const tObj = new Complex({
      struct_field: null,
      struct_list_field: null,
      struct_set_field: null,
      struct_map_field: null,
      struct_nested_containers_field: null,
      struct_nested_containers_field2: null
    });
    const received = deserialize(serialize(tObj), Complex);
    assert.ok(tObj !== received);
    assert.deepEqual(tObj, received);
  }

};

Object.keys(cases).forEach(function(caseName) {
  QUnit.test(caseName, cases[caseName]);
});