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TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Supports MongoDB, MySQL, PostgreSQL and SQLite databases as well as usage with vanilla JavaScript.
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text/typescript
import type { ObjectHydrator } from '@mikro-orm/core';
import { Embeddable, Embedded, Entity, ManyToOne, PrimaryKey, Property, wrap } from '@mikro-orm/core';
import { MikroORM, ObjectId } from '@mikro-orm/mongodb';
import { mockLogger } from '../../helpers';
@Entity()
class Source {
@PrimaryKey()
_id!: ObjectId;
@Property()
name: string;
constructor(name: string) {
this.name = name;
}
}
@Embeddable()
class IdentityMeta {
@Property()
foo?: string;
@Property()
bar?: string;
@ManyToOne(() => Source, { nullable: true })
source?: Source;
constructor(foo?: string, bar?: string) {
this.foo = foo;
this.bar = bar;
}
}
@Embeddable()
class IdentityLink {
@Property({ nullable: true })
url?: string;
@Property({ nullable: true })
createdAt?: Date;
@Embedded(() => IdentityMeta)
meta?: IdentityMeta;
@Embedded(() => IdentityMeta, { array: true })
metas: IdentityMeta[] = [];
@ManyToOne(() => Source, { nullable: true })
source?: Source;
constructor(url: string) {
this.url = url;
this.meta = new IdentityMeta('f1', 'b1');
this.metas.push(new IdentityMeta('f2', 'b2'));
this.metas.push(new IdentityMeta('f3', 'b3'));
this.metas.push(new IdentityMeta('f4', 'b4'));
}
}
@Embeddable()
class Identity {
@Property()
email: string;
@Embedded(() => IdentityMeta, { nullable: true })
meta?: IdentityMeta;
@Embedded(() => IdentityLink, { array: true })
links: IdentityLink[] = [];
@ManyToOne(() => Source, { nullable: true })
source?: Source;
constructor(email: string, meta?: IdentityMeta) {
this.email = email;
this.meta = meta;
}
}
@Embeddable()
class Profile {
@Property()
username: string;
@Embedded(() => Identity)
identity: Identity;
@ManyToOne(() => Source, { nullable: true })
source?: Source;
constructor(username: string, identity: Identity) {
this.username = username;
this.identity = identity;
}
}
@Entity()
class User {
@PrimaryKey()
_id!: ObjectId;
@Property()
name!: string;
@Embedded(() => Profile)
profile1!: Profile;
@Embedded(() => Profile, { object: true })
profile2!: Profile;
}
describe('embedded entities in mongo', () => {
let orm: MikroORM;
beforeAll(async () => {
orm = await MikroORM.init({
entities: [User],
clientUrl: 'mongodb://localhost:27017/mikro-orm-test-entities-in-embeddables',
});
});
beforeEach(async () => {
await orm.em.nativeDelete(User, {});
await orm.em.nativeDelete(Source, {});
orm.em.clear();
});
afterAll(async () => {
await orm.close(true);
});
test('diffing', async () => {
expect(orm.em.getComparator().getSnapshotGenerator('User').toString()).toMatchSnapshot();
const metadata = orm.getMetadata();
const hydrator = orm.config.getHydrator(metadata) as ObjectHydrator;
expect(hydrator.getEntityHydrator(metadata.get('User'), 'full').toString()).toMatchSnapshot();
});
async function createUsers() {
const user1 = orm.em.create(User, {
_id: new ObjectId('600000000000000000000001'),
name: 'Uwe',
profile1: {
username: 'u1',
identity: {
email: 'e1',
meta: {
foo: 'f1',
bar: 'b1',
source: { _id: new ObjectId('600000000000000000000002'), name: 'ims1' },
},
source: { _id: new ObjectId('600000000000000000000003'), name: 'is1' },
links: [],
},
source: { _id: new ObjectId('600000000000000000000004'), name: 's1' },
},
profile2: {
username: 'u2',
identity: {
email: 'e2',
meta: {
foo: 'f2',
bar: 'b2',
source: { _id: new ObjectId('600000000000000000000005'), name: 'ims2' },
},
source: { _id: new ObjectId('600000000000000000000006'), name: 'is2' },
links: [],
},
source: { _id: new ObjectId('600000000000000000000007'), name: 's2' },
},
});
const user2 = new User();
user2._id = new ObjectId('600000000000000000000011');
user2.name = 'Uschi';
user2.profile1 = new Profile('u3', new Identity('e3'));
user2.profile1.source = new Source('s3');
user2.profile1.source._id = new ObjectId('600000000000000000000012');
user2.profile1.identity.links.push(new IdentityLink('l1'), new IdentityLink('l2'));
user2.profile1.identity.source = new Source('is3');
user2.profile1.identity.source._id = new ObjectId('600000000000000000000013');
user2.profile1.identity.links[0].source = new Source('ils31');
user2.profile1.identity.links[0].source._id = new ObjectId('600000000000000000000014');
user2.profile1.identity.links[1].source = new Source('ils32');
user2.profile1.identity.links[1].source._id = new ObjectId('600000000000000000000015');
user2.profile1.identity.links[0].metas[0].source = new Source('ilms311');
user2.profile1.identity.links[0].metas[0].source._id = new ObjectId('600000000000000000000016');
user2.profile1.identity.links[0].metas[1].source = new Source('ilms312');
user2.profile1.identity.links[0].metas[1].source._id = new ObjectId('600000000000000000000017');
user2.profile1.identity.links[0].metas[2].source = new Source('ilms313');
user2.profile1.identity.links[0].metas[2].source._id = new ObjectId('600000000000000000000018');
user2.profile1.identity.links[1].metas[0].source = new Source('ilms321');
user2.profile1.identity.links[1].metas[0].source._id = new ObjectId('600000000000000000000019');
user2.profile1.identity.links[1].metas[1].source = new Source('ilms322');
user2.profile1.identity.links[1].metas[1].source._id = new ObjectId('60000000000000000000001a');
user2.profile1.identity.links[1].metas[2].source = new Source('ilms323');
user2.profile1.identity.links[1].metas[2].source._id = new ObjectId('60000000000000000000001b');
user2.profile2 = new Profile('u4', new Identity('e4', new IdentityMeta('f4')));
user2.profile2.source = new Source('s4');
user2.profile2.source._id = new ObjectId('60000000000000000000001c');
user2.profile2.identity.links.push(new IdentityLink('l3'), new IdentityLink('l4'));
user2.profile2.identity.source = new Source('is4');
user2.profile2.identity.source._id = new ObjectId('60000000000000000000001d');
user2.profile2.identity.links[0].source = new Source('ils41');
user2.profile2.identity.links[0].source._id = new ObjectId('60000000000000000000001e');
user2.profile2.identity.links[1].source = new Source('ils42');
user2.profile2.identity.links[1].source._id = new ObjectId('60000000000000000000001f');
await orm.em.persistAndFlush([user1, user2]);
orm.em.clear();
return { user1, user2 };
}
test('persist and load', async () => {
const mock = mockLogger(orm);
const { user1, user2 } = await createUsers();
expect(mock.mock.calls[0][0]).toMatch(`db.getCollection('source').insertMany([ { _id: ObjectId('600000000000000000000004'), name: 's1' }, { _id: ObjectId('600000000000000000000003'), name: 'is1' }, { _id: ObjectId('600000000000000000000002'), name: 'ims1' }, { _id: ObjectId('600000000000000000000007'), name: 's2' }, { _id: ObjectId('600000000000000000000006'), name: 'is2' }, { _id: ObjectId('600000000000000000000005'), name: 'ims2' }, { _id: ObjectId('600000000000000000000012'), name: 's3' }, { _id: ObjectId('600000000000000000000013'), name: 'is3' }, { _id: ObjectId('600000000000000000000014'), name: 'ils31' }, { _id: ObjectId('600000000000000000000015'), name: 'ils32' }, { _id: ObjectId('600000000000000000000016'), name: 'ilms311' }, { _id: ObjectId('600000000000000000000017'), name: 'ilms312' }, { _id: ObjectId('600000000000000000000018'), name: 'ilms313' }, { _id: ObjectId('600000000000000000000019'), name: 'ilms321' }, { _id: ObjectId('60000000000000000000001a'), name: 'ilms322' }, { _id: ObjectId('60000000000000000000001b'), name: 'ilms323' }, { _id: ObjectId('60000000000000000000001c'), name: 's4' }, { _id: ObjectId('60000000000000000000001d'), name: 'is4' }, { _id: ObjectId('60000000000000000000001e'), name: 'ils41' }, { _id: ObjectId('60000000000000000000001f'), name: 'ils42' } ], {});`);
expect(mock.mock.calls[1][0]).toMatch(`db.getCollection('user').insertMany([ { _id: ObjectId('600000000000000000000001'), name: 'Uwe', profile1_username: 'u1', profile1_identity_email: 'e1', profile1_identity_meta_foo: 'f1', profile1_identity_meta_bar: 'b1', profile1_identity_meta_source: ObjectId('600000000000000000000002'), profile1_identity_links: [], profile1_identity_source: ObjectId('600000000000000000000003'), profile1_source: ObjectId('600000000000000000000004'), profile2: { username: 'u2', identity: { email: 'e2', meta: { foo: 'f2', bar: 'b2', source: ObjectId('600000000000000000000005') }, links: [], source: ObjectId('600000000000000000000006') }, source: ObjectId('600000000000000000000007') } }, { _id: ObjectId('600000000000000000000011'), name: 'Uschi', profile1_username: 'u3', profile1_identity_email: 'e3', profile1_identity_links: [ { url: 'l1', meta: { foo: 'f1', bar: 'b1' }, metas: [ { foo: 'f2', bar: 'b2', source: ObjectId('600000000000000000000016') }, { foo: 'f3', bar: 'b3', source: ObjectId('600000000000000000000017') }, { foo: 'f4', bar: 'b4', source: ObjectId('600000000000000000000018') } ], source: ObjectId('600000000000000000000014') }, { url: 'l2', meta: { foo: 'f1', bar: 'b1' }, metas: [ { foo: 'f2', bar: 'b2', source: ObjectId('600000000000000000000019') }, { foo: 'f3', bar: 'b3', source: ObjectId('60000000000000000000001a') }, { foo: 'f4', bar: 'b4', source: ObjectId('60000000000000000000001b') } ], source: ObjectId('600000000000000000000015') } ], profile1_identity_source: ObjectId('600000000000000000000013'), profile1_source: ObjectId('600000000000000000000012'), profile2: { username: 'u4', identity: { email: 'e4', meta: { foo: 'f4' }, links: [ { url: 'l3', meta: [Object], metas: [Array], source: ObjectId('60000000000000000000001e') }, { url: 'l4', meta: [Object], metas: [Array], source: ObjectId('60000000000000000000001f') } ], source: ObjectId('60000000000000000000001d') }, source: ObjectId('60000000000000000000001c') } } ], {});`);
const u1 = await orm.em.findOneOrFail(User, user1._id);
const u2 = await orm.em.findOneOrFail(User, user2._id);
expect(mock.mock.calls[2][0]).toMatch(`db.getCollection('user').find({ _id: ObjectId('600000000000000000000001') }, {}).limit(1).toArray();`);
expect(mock.mock.calls[3][0]).toMatch(`db.getCollection('user').find({ _id: ObjectId('600000000000000000000011') }, {}).limit(1).toArray();`);
expect(u1.profile1).toBeInstanceOf(Profile);
expect(u1.profile1.identity).toBeInstanceOf(Identity);
expect(u1.profile1.identity.meta).toBeInstanceOf(IdentityMeta);
expect(u1.profile1.source).toBeInstanceOf(Source);
expect(u1.profile1.identity.source).toBeInstanceOf(Source);
expect(wrap(u1.profile1.identity.source!).isInitialized()).toBe(false);
expect(u1.profile1).toMatchObject({
username: 'u1',
identity: {
email: 'e1',
links: [],
meta: {
bar: 'b1',
foo: 'f1',
source: { _id: u1.profile1.identity.meta!.source!._id },
},
},
source: { _id: u1.profile1.source!._id },
});
expect(u1.profile2).toBeInstanceOf(Profile);
expect(u1.profile2.identity).toBeInstanceOf(Identity);
expect(u1.profile2.source).toBeInstanceOf(Source);
expect(u1.profile2.identity.meta).toBeInstanceOf(IdentityMeta);
expect(u1.profile2.identity.source).toBeInstanceOf(Source);
expect(u1.profile2).toMatchObject({
username: 'u2',
identity: {
email: 'e2',
links: [],
meta: {
bar: 'b2',
foo: 'f2',
source: { _id: u1.profile2.identity.meta!.source!._id },
},
source: { _id: u1.profile2.identity.source!._id },
},
source: { _id: u1.profile2.source!._id },
});
expect(u2.profile1).toBeInstanceOf(Profile);
expect(u2.profile1.identity).toBeInstanceOf(Identity);
expect(u2.profile1.identity.links[0]).toBeInstanceOf(IdentityLink);
expect(u2.profile1.source).toBeInstanceOf(Source);
expect(u2.profile1.identity.source).toBeInstanceOf(Source);
expect(u2.profile1.identity.links[0].source).toBeInstanceOf(Source);
expect(u2.profile1.identity.links[1].source).toBeInstanceOf(Source);
expect(u2.profile1.identity.links[1].metas[0].source).toBeInstanceOf(Source);
expect(u2.profile1).toMatchObject({
username: 'u3',
identity: {
email: 'e3',
links: [
{ url: 'l1', meta: { bar: 'b1', foo: 'f1' }, source: { _id: u2.profile1.identity.links[0].source!._id }, metas: [
{ bar: 'b2', foo: 'f2', source: { _id: u2.profile1.identity.links[0].metas[0].source!._id } },
{ bar: 'b3', foo: 'f3', source: { _id: u2.profile1.identity.links[0].metas[1].source!._id } },
{ bar: 'b4', foo: 'f4', source: { _id: u2.profile1.identity.links[0].metas[2].source!._id } },
] },
{ url: 'l2', meta: { bar: 'b1', foo: 'f1' }, source: { _id: u2.profile1.identity.links[1].source!._id }, metas: [
{ bar: 'b2', foo: 'f2', source: { _id: u2.profile1.identity.links[1].metas[0].source!._id } },
{ bar: 'b3', foo: 'f3', source: { _id: u2.profile1.identity.links[1].metas[1].source!._id } },
{ bar: 'b4', foo: 'f4', source: { _id: u2.profile1.identity.links[1].metas[2].source!._id } },
] },
],
source: { _id: u2.profile1.identity.source!._id },
},
source: { _id: u2.profile1.source!._id },
});
expect(u2.profile2).toBeInstanceOf(Profile);
expect(u2.profile2.identity).toBeInstanceOf(Identity);
expect(u2.profile2.identity.links[0]).toBeInstanceOf(IdentityLink);
expect(u2.profile2.identity.meta).toBeInstanceOf(IdentityMeta);
expect(u2.profile2.source).toBeInstanceOf(Source);
expect(u2.profile2.identity.source).toBeInstanceOf(Source);
expect(u2.profile2.identity.links[0].source).toBeInstanceOf(Source);
expect(u2.profile2.identity.links[1].source).toBeInstanceOf(Source);
expect(u2.profile2).toMatchObject({
username: 'u4',
identity: {
email: 'e4',
links: [
{ url: 'l3', meta: { bar: 'b1', foo: 'f1' }, source: { _id: u2.profile2.identity.links[0].source!._id }, metas: [
{ bar: 'b2', foo: 'f2' },
{ bar: 'b3', foo: 'f3' },
{ bar: 'b4', foo: 'f4' },
] },
{ url: 'l4', meta: { bar: 'b1', foo: 'f1' }, source: { _id: u2.profile2.identity.links[1].source!._id }, metas: [
{ bar: 'b2', foo: 'f2' },
{ bar: 'b3', foo: 'f3' },
{ bar: 'b4', foo: 'f4' },
] },
],
meta: {
foo: 'f4',
},
source: { _id: u2.profile2.identity.source!._id },
},
source: { _id: u2.profile2.source!._id },
});
mock.mock.calls.length = 0;
expect(mock.mock.calls.length).toBe(0);
await orm.em.flush();
expect(mock.mock.calls.length).toBe(0);
u1.profile1!.identity.email = 'e123';
u1.profile1!.identity.meta!.foo = 'foooooooo';
u1.profile2!.identity.meta!.bar = 'bababar';
u1.profile2!.identity.links.push(new IdentityLink('l5'));
u2.profile1!.identity.links = [new IdentityLink('l6'), new IdentityLink('l7')];
u2.profile2!.identity.links.push(new IdentityLink('l8'));
await orm.em.flush();
expect(mock.mock.calls[0][0]).toMatch(`bulk = db.getCollection('user').initializeUnorderedBulkOp({});bulk.find({ _id: ObjectId('600000000000000000000001') }).update({ '$set': { profile1_identity_email: 'e123', profile1_identity_meta_foo: 'foooooooo', profile2: { username: 'u2', identity: { email: 'e2', meta: { foo: 'f2', bar: 'bababar', source: ObjectId('600000000000000000000005') }, links: [ { url: 'l5', meta: [Object], metas: [Array] } ], source: ObjectId('600000000000000000000006') }, source: ObjectId('600000000000000000000007') } } });bulk.find({ _id: ObjectId('600000000000000000000011') }).update({ '$set': { profile1_identity_links: [ { url: 'l6', meta: { foo: 'f1', bar: 'b1' }, metas: [ { foo: 'f2', bar: 'b2' }, { foo: 'f3', bar: 'b3' }, { foo: 'f4', bar: 'b4' } ] }, { url: 'l7', meta: { foo: 'f1', bar: 'b1' }, metas: [ { foo: 'f2', bar: 'b2' }, { foo: 'f3', bar: 'b3' }, { foo: 'f4', bar: 'b4' } ] } ], profile2: { username: 'u4', identity: { email: 'e4', meta: { foo: 'f4' }, links: [ { url: 'l3', meta: [Object], metas: [Array], source: ObjectId('60000000000000000000001e') }, { url: 'l4', meta: [Object], metas: [Array], source: ObjectId('60000000000000000000001f') }, { url: 'l8', meta: [Object], metas: [Array] } ], source: ObjectId('60000000000000000000001d') }, source: ObjectId('60000000000000000000001c') } } });bulk.execute()`);
orm.em.clear();
mock.mock.calls.length = 0;
const u3 = await orm.em.findOneOrFail(User, {
profile1: { identity: { email: 'e123', meta: { foo: 'foooooooo' } } },
profile2: { identity: { email: 'e2', meta: { foo: 'f2', bar: 'bababar' } } },
});
expect(mock.mock.calls[0][0]).toMatch(`db.getCollection('user').find({ profile1_identity_email: 'e123', profile1_identity_meta_foo: 'foooooooo', 'profile2.identity.email': 'e2', 'profile2.identity.meta.foo': 'f2', 'profile2.identity.meta.bar': 'bababar' }, {}).limit(1).toArray();`);
expect(u3._id).toEqual(u1._id);
orm.em.clear();
mock.mock.calls.length = 0;
const u4 = await orm.em.findOneOrFail(User, {
profile1: { identity: { email: 'e123', meta: { foo: { $re: 'fo+' } } } },
profile2: { identity: { email: 'e2', meta: { foo: 'f2', bar: { $re: '(ba)+r' } } } },
});
expect(u4._id).toEqual(u1._id);
expect(mock.mock.calls[0][0]).toMatch(`db.getCollection('user').find({ profile1_identity_email: 'e123', profile1_identity_meta_foo: /fo+/, 'profile2.identity.email': 'e2', 'profile2.identity.meta.foo': 'f2', 'profile2.identity.meta.bar': /(ba)+r/ }, {}).limit(1).toArray();`);
orm.em.clear();
mock.mock.calls.length = 0;
const u5 = await orm.em.findOneOrFail(User, { $or: [{ profile1: { identity: { meta: { foo: 'foooooooo' } } } }, { profile2: { identity: { meta: { bar: 'bababar' } } } }] });
expect(mock.mock.calls[0][0]).toMatch(`db.getCollection('user').find({ '$or': [ { profile1_identity_meta_foo: 'foooooooo' }, { 'profile2.identity.meta.bar': 'bababar' } ] }, {}).limit(1).toArray();`);
expect(u5._id).toEqual(u1._id);
const err1 = `Invalid query for entity 'User', property 'city' does not exist in embeddable 'Identity'`;
await expect(orm.em.findOneOrFail(User, { profile1: { identity: { city: 'London 1' } as any } })).rejects.toThrow(err1);
const err2 = `Invalid query for entity 'User', property 'city' does not exist in embeddable 'Identity'`;
await expect(orm.em.findOneOrFail(User, { profile2: { identity: { city: 'London 1' } as any } })).rejects.toThrow(err2);
});
test('populating entities in embeddables', async () => {
await createUsers();
const mock = mockLogger(orm);
const users = await orm.em.find(User, {}, {
populate: [
'profile1.source',
'profile1.identity.source',
'profile1.identity.meta.source',
'profile1.identity.links.source',
'profile1.identity.links.metas.source',
],
orderBy: { name: 'desc' },
});
expect(mock.mock.calls[0][0]).toMatch(`db.getCollection('user').find({}, {}).sort([ [ 'name', -1 ] ]).toArray();`);
expect(mock.mock.calls[1][0]).toMatch(`db.getCollection('source').find({ _id: { '$in': [ ObjectId('600000000000000000000004'), ObjectId('600000000000000000000012') ] } }, {}).toArray();`);
expect(mock.mock.calls[2][0]).toMatch(`db.getCollection('source').find({ _id: { '$in': [ ObjectId('600000000000000000000003'), ObjectId('600000000000000000000013') ] } }, {}).toArray();`);
expect(mock.mock.calls[3][0]).toMatch(`db.getCollection('source').find({ _id: { '$in': [ ObjectId('600000000000000000000002') ] } }, {}).toArray();`);
expect(mock.mock.calls[4][0]).toMatch(`db.getCollection('source').find({ _id: { '$in': [ ObjectId('600000000000000000000014'), ObjectId('600000000000000000000015') ] } }, {}).toArray();`);
expect(mock.mock.calls[5][0]).toMatch(`db.getCollection('source').find({ _id: { '$in': [ ObjectId('600000000000000000000016'), ObjectId('600000000000000000000017'), ObjectId('600000000000000000000018'), ObjectId('600000000000000000000019'), ObjectId('60000000000000000000001a'), ObjectId('60000000000000000000001b') ] } }, {}).toArray();`);
expect(wrap(users[0].profile1.source!).isInitialized()).toBe(true);
expect(users[0].profile1.source!.name).toBe('s1');
expect(wrap(users[1].profile1.identity.links[1].source!).isInitialized()).toBe(true);
expect(users[1].profile1.identity.links[1].source!.name).toBe('ils32');
expect(wrap(users[1].profile1.identity.links[1].metas[2].source!).isInitialized()).toBe(true);
expect(users[1].profile1.identity.links[1].metas[2].source!.name).toBe('ilms323');
// test serialization context
expect(wrap(users[0]).toObject()).toMatchObject({
profile1: {
source: { name: 's1' },
identity: {
source: { name: 'is1' },
meta: { source: { name: 'ims1' } },
},
},
});
expect(wrap(users[1]).toObject()).toMatchObject({
profile1: {
source: { name: 's3' },
identity: {
source: { name: 'is3' },
links: [
{ metas: [{ source: { name: 'ilms311' } }, { source: { name: 'ilms312' } }, { source: { name: 'ilms313' } }] },
{ metas: [{ source: { name: 'ilms321' } }, { source: { name: 'ilms322' } }, { source: { name: 'ilms323' } }] },
],
},
},
});
});
test('#assign() works with nested embeddables', async () => {
const jon = new User();
orm.em.assign(jon, {
profile1: { username: 'u1', identity: { email: 'e1', meta: { bar: 'b1', foo: 'f1' } } },
profile2: { username: 'u2', identity: { email: 'e2', meta: { bar: 'b2', foo: 'f2' } } },
});
expect(jon.profile1).toMatchObject({ username: 'u1', identity: { email: 'e1', meta: { bar: 'b1', foo: 'f1' } } });
expect(jon.profile1).toBeInstanceOf(Profile);
expect(jon.profile1.identity).toBeInstanceOf(Identity);
expect(jon.profile1.identity.meta).toBeInstanceOf(IdentityMeta);
expect(jon.profile2).toMatchObject({ username: 'u2', identity: { email: 'e2', meta: { bar: 'b2', foo: 'f2' } } });
expect(jon.profile2).toBeInstanceOf(Profile);
expect(jon.profile2.identity).toBeInstanceOf(Identity);
expect(jon.profile2.identity.meta).toBeInstanceOf(IdentityMeta);
orm.em.assign(jon, { profile1: { identity: { email: 'e3' } } });
expect(jon.profile1.username).toBe('u1');
expect(jon.profile1.identity.email).toBe('e3');
expect(jon.profile1.identity.meta).not.toBeUndefined();
delete jon.profile1.identity.meta;
orm.em.assign(jon, { profile1: { identity: { meta: { foo: 'f' } } } });
expect(jon.profile1.identity.meta!.foo).toBe('f');
expect(jon.profile1.identity.meta).toBeInstanceOf(IdentityMeta);
orm.em.assign(jon, { profile1: { identity: { email: 'e4' } } }, { mergeObjectProperties: false });
expect(jon.profile1.username).toBeUndefined();
expect(jon.profile1.identity.email).toBe('e4');
expect(jon.profile1.identity.meta).toBeUndefined();
});
});