loopback-connector-crate/test/TODO.discover.test.js

Loopback Crate Connector

process.env.NODE_ENV = 'test';
require('should');

var assert = require('assert');

var DataSource = require('loopback-datasource-juggler').DataSource;
var db;

before(function () {
  var config = require('rc')('loopback', {dev: {postgresql: {}}}).dev.postgresql;
  db = new DataSource(require('../'), config);
});

describe('discoverModels', function () {
  describe('Discover models including views', function () {
    it('should return an array of tables and views', function (done) {

      db.discoverModelDefinitions({
        views: true,
        limit: 3
      }, function (err, models) {
        if (err) {
          console.error(err);
          done(err);
        } else {
          var views = false;
          models.forEach(function (m) {
            // console.dir(m);
            if (m.type === 'view') {
              views = true;
            }
          });
          assert(views, 'Should have views');
          done(null, models);
        }
      });
    });
  });

  describe('Discover models excluding views', function () {
    it('should return an array of only tables', function (done) {

      db.discoverModelDefinitions({
        views: false,
        limit: 3
      }, function (err, models) {
        if (err) {
          console.error(err);
          done(err);
        } else {
          var views = false;
          models.forEach(function (m) {
            // console.dir(m);
            if (m.type === 'view') {
              views = true;
            }
          });
          models.should.have.length(3);
          assert(!views, 'Should not have views');
          done(null, models);
        }
      });
    });
  });
});

describe('Discover models including other users', function () {
  it('should return an array of all tables and views', function (done) {

    db.discoverModelDefinitions({
      all: true,
      limit: 3
    }, function (err, models) {
      if (err) {
        console.error(err);
        done(err);
      } else {
        var others = false;
        models.forEach(function (m) {
          // console.dir(m);
          if (m.owner !== 'strongloop') {
            others = true;
          }
        });
        assert(others, 'Should have tables/views owned by others');
        done(err, models);
      }
    });
  });
});

describe('Discover model properties', function () {
  describe('Discover a named model', function () {
    it('should return an array of columns for product', function (done) {
      db.discoverModelProperties('product', function (err, models) {
        if (err) {
          console.error(err);
          done(err);
        } else {
          models.forEach(function (m) {
            // console.dir(m);
            assert(m.tableName === 'product');
          });
          done(null, models);
        }
      });
    });
  });

});

describe('Discover model primary keys', function () {
  it('should return an array of primary keys for product', function (done) {
    db.discoverPrimaryKeys('product', function (err, models) {
      if (err) {
        console.error(err);
        done(err);
      } else {
        models.forEach(function (m) {
          assert.deepEqual(m, { owner: 'strongloop',
            tableName: 'product',
            columnName: 'id',
            keySeq: 1,
            pkName: 'product_pkey' });
        });
        done(null, models);
      }
    });
  });

  it('should return an array of primary keys for strongloop.product', function (done) {
    db.discoverPrimaryKeys('product', {owner: 'strongloop'}, function (err, models) {
      if (err) {
        console.error(err);
        done(err);
      } else {
        models.forEach(function (m) {
          // console.dir(m);
          assert(m.tableName === 'product');
        });
        done(null, models);
      }
    });
  });
});

describe('Discover model foreign keys', function () {
  it('should return an array of foreign keys for inventory', function (done) {
    db.discoverForeignKeys('inventory', function (err, models) {
      if (err) {
        console.error(err);
        done(err);
      } else {
        models.forEach(function (m) {
          // console.dir(m);
          assert(m.fkTableName === 'inventory');
        });
        done(null, models);
      }
    });
  });
  it('should return an array of foreign keys for strongloop.inventory', function (done) {
    db.discoverForeignKeys('inventory', {owner: 'strongloop'}, function (err, models) {
      if (err) {
        console.error(err);
        done(err);
      } else {
        models.forEach(function (m) {
          // console.dir(m);
          assert(m.fkTableName === 'inventory');
        });
        done(null, models);
      }
    });
  });
});

describe('Discover LDL schema from a table', function () {
  it('should return an LDL schema for inventory', function (done) {
    db.discoverSchema('inventory', {owner: 'strongloop'}, function (err, schema) {
      assert(schema.name === 'Inventory');
      assert(schema.options.postgresql.schema === 'strongloop');
      assert(schema.options.postgresql.table === 'inventory');
      assert(schema.properties.productId);
      assert(schema.properties.productId.type === 'String');
      assert(schema.properties.productId.postgresql.columnName === 'product_id');
      assert(schema.properties.locationId);
      assert(schema.properties.locationId.type === 'String');
      assert(schema.properties.locationId.postgresql.columnName === 'location_id');
      assert(schema.properties.available);
      assert(schema.properties.available.type === 'Number');
      assert(schema.properties.total);
      assert(schema.properties.total.type === 'Number');
      done(null, schema);
    });
  });
});

describe('Discover and build models', function() {
  it('should build a model from discovery', function(done) {

    db.discoverAndBuildModels('GeoPoint', {schema: 'strongloop'}, function(err, schema) {
      schema.Geopoint.find(function(err, data) {
        assert(!err);
        assert(Array.isArray(data));
        assert(data[0].location);
        done();
      });
    });
  });
});