undeexcepturi/tests/features/schema-generator/schema-name-from-config.postgres.test.ts

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.

import 'reflect-metadata';
import { Entity, MikroORM, PrimaryKey, ManyToMany, Collection } from '@mikro-orm/core';
import { PostgreSqlDriver } from '@mikro-orm/postgresql';


@Entity()
class Profile {

  @PrimaryKey()
  id!: string;

}


@Entity()
class User {

  @PrimaryKey()
  id!: string;

  @ManyToMany(() => Profile)
  profile = new Collection<Profile>(this);

}

describe('adding FK column', () => {

  let orm: MikroORM<PostgreSqlDriver>;

  beforeAll(async () => {
    orm = await MikroORM.init({
      entities: [User, Profile],
      driver: PostgreSqlDriver,
      dbName: 'fk-column-postgres-schema',
      schema: 'test',
    });
    await orm.schema.ensureDatabase();
    await orm.schema.dropSchema();
  });

  afterAll(() => orm.close(true));

  test('schema: adding 1:1 relation', async () => {
    const diff1 = await orm.schema.getCreateSchemaSQL();
    expect(diff1).toMatchSnapshot();
    const diff2 = await orm.schema.getUpdateSchemaSQL();
    expect(diff2).toMatchSnapshot();
    const diff3 = await orm.schema.getDropSchemaSQL();
    expect(diff3).toMatchSnapshot();

    await orm.schema.execute(diff1); // create
    await orm.schema.execute(diff3); // drop
    await orm.schema.execute(diff2); // update from scratch

    const diff4 = await orm.schema.getUpdateSchemaSQL();
    expect(diff4).toBe('');

    await orm.schema.execute(diff3); // drop
  });

});