loopback-datasource-juggler/test/model-definition.test.js

// This test written in mocha+should.js
var should = require('./init.js');
var assert = require('assert');

var jdb = require('../');
var ModelBuilder = jdb.ModelBuilder;
var DataSource = jdb.DataSource;
var Memory = require('../lib/connectors/memory');

var ModelDefinition = require('../lib/model-definition');

describe('ModelDefinition class', function () {

  it('should be able to define plain models', function (done) {
    var modelBuilder = new ModelBuilder();

    var User = new ModelDefinition(modelBuilder, 'User', {
      name: "string",
      bio: ModelBuilder.Text,
      approved: Boolean,
      joinedAt: Date,
      age: "number"
    });

    User.build();
    assert.equal(User.properties.name.type, String);
    assert.equal(User.properties.bio.type, ModelBuilder.Text);
    assert.equal(User.properties.approved.type, Boolean);
    assert.equal(User.properties.joinedAt.type, Date);
    assert.equal(User.properties.age.type, Number);

    var json = User.toJSON();
    assert.equal(json.name, "User");
    assert.equal(json.properties.name.type, "String");
    assert.equal(json.properties.bio.type, "Text");
    assert.equal(json.properties.approved.type, "Boolean");
    assert.equal(json.properties.joinedAt.type, "Date");
    assert.equal(json.properties.age.type, "Number");

    done();

  });

  it('should be able to define additional properties', function (done) {
    var modelBuilder = new ModelBuilder();

    var User = new ModelDefinition(modelBuilder, 'User', {
      name: "string",
      bio: ModelBuilder.Text,
      approved: Boolean,
      joinedAt: Date,
      age: "number"
    });

    User.build();

    User.defineProperty("id", {type: "number", id: true});
    assert.equal(User.properties.name.type, String);
    assert.equal(User.properties.bio.type, ModelBuilder.Text);
    assert.equal(User.properties.approved.type, Boolean);
    assert.equal(User.properties.joinedAt.type, Date);
    assert.equal(User.properties.age.type, Number);

    assert.equal(User.properties.id.type, Number);
    done();

  });

  it('should be able to define nesting models', function (done) {
    var modelBuilder = new ModelBuilder();

    var User = new ModelDefinition(modelBuilder, 'User', {
      name: String,
      bio: ModelBuilder.Text,
      approved: Boolean,
      joinedAt: Date,
      age: Number,
      address: {
        street: String,
        city: String,
        zipCode: String,
        state: String
      }
    });

    User.build();
    assert.equal(User.properties.name.type, String);
    assert.equal(User.properties.bio.type, ModelBuilder.Text);
    assert.equal(User.properties.approved.type, Boolean);
    assert.equal(User.properties.joinedAt.type, Date);
    assert.equal(User.properties.age.type, Number);
    assert.equal(typeof User.properties.address.type, 'function');

    var json = User.toJSON();
    assert.equal(json.name, "User");
    assert.equal(json.properties.name.type, "String");
    assert.equal(json.properties.bio.type, "Text");
    assert.equal(json.properties.approved.type, "Boolean");
    assert.equal(json.properties.joinedAt.type, "Date");
    assert.equal(json.properties.age.type, "Number");

    assert.deepEqual(json.properties.address.type, { street: { type: 'String' },
      city: { type: 'String' },
      zipCode: { type: 'String' },
      state: { type: 'String' } });

    done();

  });

  it('should be able to define referencing models', function (done) {
    var modelBuilder = new ModelBuilder();

    var Address = modelBuilder.define('Address', {
      street: String,
      city: String,
      zipCode: String,
      state: String
    });
    var User = new ModelDefinition(modelBuilder, 'User', {
      name: String,
      bio: ModelBuilder.Text,
      approved: Boolean,
      joinedAt: Date,
      age: Number,
      address: Address

    });

    User.build();
    assert.equal(User.properties.name.type, String);
    assert.equal(User.properties.bio.type, ModelBuilder.Text);
    assert.equal(User.properties.approved.type, Boolean);
    assert.equal(User.properties.joinedAt.type, Date);
    assert.equal(User.properties.age.type, Number);
    assert.equal(User.properties.address.type, Address);

    var json = User.toJSON();
    assert.equal(json.name, "User");
    assert.equal(json.properties.name.type, "String");
    assert.equal(json.properties.bio.type, "Text");
    assert.equal(json.properties.approved.type, "Boolean");
    assert.equal(json.properties.joinedAt.type, "Date");
    assert.equal(json.properties.age.type, "Number");

    assert.equal(json.properties.address.type, 'Address');

    done();

  });

  it('should be able to define referencing models by name', function (done) {
    var modelBuilder = new ModelBuilder();

    var Address = modelBuilder.define('Address', {
      street: String,
      city: String,
      zipCode: String,
      state: String
    });
    var User = new ModelDefinition(modelBuilder, 'User', {
      name: String,
      bio: ModelBuilder.Text,
      approved: Boolean,
      joinedAt: Date,
      age: Number,
      address: 'Address'

    });

    User.build();
    assert.equal(User.properties.name.type, String);
    assert.equal(User.properties.bio.type, ModelBuilder.Text);
    assert.equal(User.properties.approved.type, Boolean);
    assert.equal(User.properties.joinedAt.type, Date);
    assert.equal(User.properties.age.type, Number);
    assert.equal(User.properties.address.type, Address);

    var json = User.toJSON();
    assert.equal(json.name, "User");
    assert.equal(json.properties.name.type, "String");
    assert.equal(json.properties.bio.type, "Text");
    assert.equal(json.properties.approved.type, "Boolean");
    assert.equal(json.properties.joinedAt.type, "Date");
    assert.equal(json.properties.age.type, "Number");

    assert.equal(json.properties.address.type, 'Address');

    done();

  });

  it('should report correct id names', function (done) {
    var modelBuilder = new ModelBuilder();

    var User = new ModelDefinition(modelBuilder, 'User', {
      userId: {type: String, id: true},
      name: "string",
      bio: ModelBuilder.Text,
      approved: Boolean,
      joinedAt: Date,
      age: "number"
    });

    assert.equal(User.idName(), 'userId');
    assert.deepEqual(User.idNames(), ['userId']);
    done();
  });

  it('should report correct table/column names', function (done) {
    var modelBuilder = new ModelBuilder();

    var User = new ModelDefinition(modelBuilder, 'User', {
      userId: {type: String, id: true, oracle: {column: 'ID'}},
      name: "string"
    }, {oracle: {table: 'USER'}});

    assert.equal(User.tableName('oracle'), 'USER');
    assert.equal(User.tableName('mysql'), 'User');
    assert.equal(User.columnName('oracle', 'userId'), 'ID');
    assert.equal(User.columnName('mysql', 'userId'), 'userId');
    done();
  });

  it('should inherit prototype using option.base', function () {
    var memory = new DataSource({connector: Memory});
    var modelBuilder = memory.modelBuilder;
    var parent = memory.createModel('parent', {}, {
      relations: {
        children: {
          type: 'hasMany',
          model: 'anotherChild'
        }
      }
    });
    var baseChild = modelBuilder.define('baseChild');
    baseChild.attachTo(memory);
    // the name of this must begin with a letter < b
    // for this test to fail
    var anotherChild = baseChild.extend('anotherChild');

    assert(anotherChild.prototype instanceof baseChild);
  });

});