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'use strict';
/** * Module dependencies. */
const mongoose = require('./common').mongoose;
const assert = require('assert');
const Schema = mongoose.Schema;
describe('SubdocumentPath', function() {  describe('discriminator()', function() {    describe('recursive nested discriminators', function() {      it('allow multiple levels of data in the schema', function() {        const singleEventSchema = new Schema({          message: String        }, { _id: false, discriminatorKey: 'kind' });
        const subEventSchema = new Schema({          sub_events: [singleEventSchema]        }, { _id: false });
        subEventSchema.path('sub_events').discriminator('SubEvent', subEventSchema, { clone: false });
        let currentEventLevel = subEventSchema;        for (let i = 0; i < 5; i++) {          const subEventSchemaDiscriminators = currentEventLevel.path('sub_events').schema.discriminators;          assert.ok(subEventSchemaDiscriminators);          assert.ok(subEventSchemaDiscriminators.SubEvent);          currentEventLevel = subEventSchemaDiscriminators.SubEvent;        }      });
      it('allow multiple levels of data in a document', function() {        const singleEventSchema = new Schema({          message: String        }, { _id: false, discriminatorKey: 'kind' });
        const subEventSchema = new Schema({          sub_events: [singleEventSchema]        }, { _id: false });
        subEventSchema.path('sub_events').discriminator('SubEvent', subEventSchema, { clone: false });
        const SubEvent = mongoose.model('MultiLevelDataDoc', subEventSchema);        const multiLevel = {          // To create a recursive document, the schema was modified, so kind & message are added          kind: 'SubEvent',          message: 'level 1',          sub_events: [{            kind: 'SubEvent',            message: 'level 2',            sub_events: [{              kind: 'SubEvent',              message: 'level 3',              sub_events: [{                kind: 'SubEvent',                message: 'level 4',                sub_events: [{                  kind: 'SubEvent',                  message: 'level 5',                  sub_events: []                }]              }]            }]          }]        };        const subEvent = SubEvent(multiLevel);
        assert.deepStrictEqual(multiLevel, subEvent.toJSON());      });
      it('allow multiple levels of data in the schema when the base schema has _id without auto', function() {        const singleEventSchema = new Schema({          _id: { type: Number, required: true },          message: String        }, { discriminatorKey: 'kind' });
        const subEventSchema = new Schema({          sub_events: [singleEventSchema]        });
        subEventSchema.path('sub_events').discriminator('SubEvent', subEventSchema, { clone: false });
        // To create a recursive document, the schema was modified, so the _id property is now a number        assert.equal(subEventSchema.path('_id').instance, 'Number');
        let currentEventLevel = subEventSchema;        for (let i = 0; i < 5; i++) {          const subEventSchemaDiscriminators = currentEventLevel.path('sub_events').schema.discriminators;          assert.ok(subEventSchemaDiscriminators);          assert.ok(subEventSchemaDiscriminators.SubEvent);          currentEventLevel = subEventSchemaDiscriminators.SubEvent;          assert.equal(currentEventLevel.path('_id').instance, 'Number');        }      });
      it('allow multiple levels of data in a document when the base schema has _id without auto', function() {        const singleEventSchema = new Schema({          _id: { type: Number, required: true },          message: String        }, { discriminatorKey: 'kind' });
        const subEventSchema = new Schema({          sub_events: [singleEventSchema]        });
        subEventSchema.path('sub_events').discriminator('SubEvent', subEventSchema, { clone: false });
        const SubEvent = mongoose.model('MultiLevelDataWithIdDoc', subEventSchema);        const multiLevel = {          // To create a recursive document, the schema was modified, so kind & message are added & _id is now Number          _id: 1,          kind: 'SubEvent',          message: 'level 1',          sub_events: [{            _id: 1,            kind: 'SubEvent',            message: 'level 2',            sub_events: [{              _id: 1,              kind: 'SubEvent',              message: 'level 3',              sub_events: [{                _id: 1,                kind: 'SubEvent',                message: 'level 4',                sub_events: [{                  _id: 1,                  kind: 'SubEvent',                  message: 'level 5',                  sub_events: []                }]              }]            }]          }]        };        const subEvent = SubEvent(multiLevel);
        assert.deepStrictEqual(multiLevel, subEvent.toJSON());      });    });  });
  it('copies over `requiredValidator` (gh-8819)', function() {    const authorSchema = new mongoose.Schema({      name: String,      pseudonym: String    });
    const bookSchema = new mongoose.Schema({      author: {        type: authorSchema,        required: true      }    });
    const clone = bookSchema.clone();    assert.ok(clone.path('author').requiredValidator);    assert.strictEqual(clone.path('author').requiredValidator,      clone.path('author').validators[0].validator);  });
  it('supports `set()` (gh-8883)', function() {    mongoose.deleteModel(/Test/);    mongoose.Schema.Types.Subdocument.set('required', true);
    const Model = mongoose.model('Test', mongoose.Schema({      nested: mongoose.Schema({        test: String      })    }));
    const doc = new Model({});
    const err = doc.validateSync();    assert.ok(err);    assert.ok(err.errors['nested']);
    mongoose.Schema.Types.Subdocument.set('required', false);  });
  it('supports setting _id globally (gh-11541) (gh-8883)', function() {    mongoose.deleteModel(/Test/);    mongoose.Schema.Types.Subdocument.set('_id', false);
    const Model = mongoose.model('Test', mongoose.Schema({      nested: mongoose.Schema({        test: String      })    }));
    const doc = new Model({ nested: {} });
    assert.ok(!doc.nested._id);
    delete mongoose.Schema.Types.Subdocument.defaultOptions._id;    mongoose.Schema.Types.Subdocument.set('required', false);  });});