loopback-connector-mysql/test/mysql.autoupdate.test.js

// Copyright IBM Corp. 2014,2016. All Rights Reserved.
// Node module: loopback-connector-mysql
// This file is licensed under the MIT License.
// License text available at https://opensource.org/licenses/MIT

'use strict';
var assert = require('assert');
require('./init');
var ds;

before(function() {
  ds = getDataSource();
});

describe('MySQL connector', function() {
  it('should auto migrate/update tables', function(done) {
    var schema_v1 =
      {
        'name': 'CustomerTest',
        'options': {
          'idInjection': false,
          'mysql': {
            'schema': 'myapp_test',
            'table': 'customer_test',
          },
        },
        'properties': {
          'id': {
            'type': 'String',
            'length': 20,
            'id': 1,
          },
          'name': {
            'type': 'String',
            'required': false,
            'length': 40,
          },
          'email': {
            'type': 'String',
            'required': true,
            'length': 40,
          },
          'age': {
            'type': 'Number',
            'required': false,
          },
        },
      };

    var schema_v2 =
      {
        'name': 'CustomerTest',
        'options': {
          'idInjection': false,
          'mysql': {
            'schema': 'myapp_test',
            'table': 'customer_test',
          },
        },
        'properties': {
          'id': {
            'type': 'String',
            'length': 20,
            'id': 1,
          },
          'email': {
            'type': 'String',
            'required': false,
            'length': 60,
            'mysql': {
              'columnName': 'email',
              'dataType': 'varchar',
              'dataLength': 60,
              'nullable': 'YES',
            },
          },
          'firstName': {
            'type': 'String',
            'required': false,
            'length': 40,
          },
          'lastName': {
            'type': 'String',
            'required': false,
            'length': 40,
          },
        },
      };

    ds.createModel(schema_v1.name, schema_v1.properties, schema_v1.options);

    ds.automigrate(function() {
      ds.discoverModelProperties('customer_test', function(err, props) {
        assert.equal(props.length, 4);
        var names = props.map(function(p) {
          return p.columnName;
        });
        assert.equal(props[0].nullable, 'N');
        assert.equal(props[1].nullable, 'Y');
        assert.equal(props[2].nullable, 'N');
        assert.equal(props[3].nullable, 'Y');
        assert.equal(names[0], 'id');
        assert.equal(names[1], 'name');
        assert.equal(names[2], 'email');
        assert.equal(names[3], 'age');

        ds.createModel(schema_v2.name, schema_v2.properties, schema_v2.options);

        ds.autoupdate(function(err, result) {
          ds.discoverModelProperties('customer_test', function(err, props) {
            assert.equal(props.length, 4);
            var names = props.map(function(p) {
              return p.columnName;
            });
            assert.equal(names[0], 'id');
            assert.equal(names[1], 'email');
            assert.equal(names[2], 'firstName');
            assert.equal(names[3], 'lastName');
            done(err, result);
          });
        });
      });
    });
  });

  it('should report errors for automigrate', function(done) {
    ds.automigrate('XYZ', function(err) {
      assert(err);
      done();
    });
  });

  it('should report errors for autoupdate', function(done) {
    ds.autoupdate('XYZ', function(err) {
      assert(err);
      done();
    });
  });
});