loopback-datasource-juggler/test/discovery.test.js

627 lines
17 KiB
JavaScript

// Copyright IBM Corp. 2015,2016. All Rights Reserved.
// Node module: loopback-datasource-juggler
// This file is licensed under the MIT License.
// License text available at https://opensource.org/licenses/MIT
var jdb = require('../');
var DataSource = jdb.DataSource;
var should = require('./init.js');
describe('Memory connector with mocked discovery', function() {
var ds;
before(function() {
ds = new DataSource({ connector: 'memory' });
var models = [{ type: 'table', name: 'CUSTOMER', owner: 'STRONGLOOP' },
{ type: 'table', name: 'INVENTORY', owner: 'STRONGLOOP' },
{ type: 'table', name: 'LOCATION', owner: 'STRONGLOOP' }];
ds.discoverModelDefinitions = function(options, cb) {
process.nextTick(function() {
cb(null, models);
});
};
var modelProperties = [{
owner: 'STRONGLOOP',
tableName: 'INVENTORY',
columnName: 'PRODUCT_ID',
dataType: 'varchar',
dataLength: 20,
dataPrecision: null,
dataScale: null,
nullable: 0,
},
{
owner: 'STRONGLOOP',
tableName: 'INVENTORY',
columnName: 'LOCATION_ID',
dataType: 'varchar',
dataLength: 20,
dataPrecision: null,
dataScale: null,
nullable: 0,
},
{
owner: 'STRONGLOOP',
tableName: 'INVENTORY',
columnName: 'AVAILABLE',
dataType: 'int',
dataLength: null,
dataPrecision: 10,
dataScale: 0,
nullable: 1,
},
{
owner: 'STRONGLOOP',
tableName: 'INVENTORY',
columnName: 'TOTAL',
dataType: 'int',
dataLength: null,
dataPrecision: 10,
dataScale: 0,
nullable: 1,
}];
ds.discoverModelProperties = function(modelName, options, cb) {
process.nextTick(function() {
cb(null, modelProperties);
});
};
});
it('should convert table/column names to camel cases', function(done) {
ds.discoverSchemas('INVENTORY', {}, function(err, schemas) {
if (err) return done(err);
schemas.should.have.property('STRONGLOOP.INVENTORY');
var s = schemas['STRONGLOOP.INVENTORY'];
s.name.should.be.eql('Inventory');
Object.keys(s.properties).should.be.eql(
['productId', 'locationId', 'available', 'total']);
done();
});
});
it('should convert table/column names with custom mapper', function(done) {
ds.discoverSchemas('INVENTORY', {
nameMapper: function(type, name) {
// Convert all names to lower case
return name.toLowerCase();
},
}, function(err, schemas) {
if (err) return done(err);
schemas.should.have.property('STRONGLOOP.INVENTORY');
var s = schemas['STRONGLOOP.INVENTORY'];
s.name.should.be.eql('inventory');
Object.keys(s.properties).should.be.eql(
['product_id', 'location_id', 'available', 'total']);
done();
});
});
it('should not convert table/column names with null custom mapper',
function(done) {
ds.discoverSchemas('INVENTORY', { nameMapper: null }, function(err, schemas) {
if (err) return done(err);
schemas.should.have.property('STRONGLOOP.INVENTORY');
var s = schemas['STRONGLOOP.INVENTORY'];
s.name.should.be.eql('INVENTORY');
Object.keys(s.properties).should.be.eql(
['PRODUCT_ID', 'LOCATION_ID', 'AVAILABLE', 'TOTAL']);
done();
});
});
it('should honor connector\'s discoverSchemas implementation',
function(done) {
var models = {
inventory: {
product: { type: 'string' },
location: { type: 'string' },
},
};
ds.connector.discoverSchemas = function(modelName, options, cb) {
process.nextTick(function() {
cb(null, models);
});
};
ds.discoverSchemas('INVENTORY', { nameMapper: null }, function(err, schemas) {
if (err) return done(err);
schemas.should.be.eql(models);
done();
});
});
it('should callback function, passed as options parameter',
function(done) {
var models = {
inventory: {
product: { type: 'string' },
location: { type: 'string' },
},
};
ds.connector.discoverSchemas = function(modelName, options, cb) {
process.nextTick(function() {
cb(null, models);
});
};
var options = function(err, schemas) {
if (err) return done(err);
schemas.should.be.eql(models);
done();
};
ds.discoverSchemas('INVENTORY', options);
});
it('should discover schemas using `discoverSchemas` - promise variant',
function(done) {
ds.connector.discoverSchemas = null;
ds.discoverSchemas('INVENTORY', {})
.then(function(schemas) {
schemas.should.have.property('STRONGLOOP.INVENTORY');
var s = schemas['STRONGLOOP.INVENTORY'];
s.name.should.be.eql('Inventory');
Object.keys(s.properties).should.be.eql(
['productId', 'locationId', 'available', 'total']
);
done();
})
.catch(function(err) {
done(err);
});
});
describe('discoverSchema', function() {
var models;
var schema;
before(function() {
schema = {
name: 'Inventory',
options: {
idInjection: false,
memory: { schema: 'STRONGLOOP', table: 'INVENTORY' },
},
properties: {
available: {
length: null,
memory: {
columnName: 'AVAILABLE',
dataLength: null,
dataPrecision: 10,
dataScale: 0,
dataType: 'int',
nullable: 1,
},
precision: 10,
required: false,
scale: 0,
type: undefined,
},
locationId: {
length: 20,
memory: {
columnName: 'LOCATION_ID',
dataLength: 20,
dataPrecision: null,
dataScale: null,
dataType: 'varchar',
nullable: 0,
},
precision: null,
required: true,
scale: null,
type: undefined,
},
productId: {
length: 20,
memory: {
columnName: 'PRODUCT_ID',
dataLength: 20,
dataPrecision: null,
dataScale: null,
dataType: 'varchar',
nullable: 0,
},
precision: null,
required: true,
scale: null,
type: undefined,
},
total: {
length: null,
memory: {
columnName: 'TOTAL',
dataLength: null,
dataPrecision: 10,
dataScale: 0,
dataType: 'int',
nullable: 1,
},
precision: 10,
required: false,
scale: 0,
type: undefined,
},
},
};
});
it('should discover schema using `discoverSchema`', function(done) {
ds.discoverSchema('INVENTORY', {}, function(err, schemas) {
if (err) return done(err);
schemas.should.be.eql(schema);
done();
});
});
it('should callback function, passed as options parameter', function(done) {
var options = function(err, schemas) {
if (err) return done(err);
schemas.should.be.eql(schema);
done();
};
ds.discoverSchema('INVENTORY', options);
});
it('should discover schema using `discoverSchema` - promise variant', function(done) {
ds.discoverSchema('INVENTORY', {})
.then(function(schemas) {
schemas.should.be.eql(schema);
done();
})
.catch(function(err) {
done(err);
});
});
});
});
describe('discoverModelDefinitions', function() {
var ds;
before(function() {
ds = new DataSource({ connector: 'memory' });
var models = [{ type: 'table', name: 'CUSTOMER', owner: 'STRONGLOOP' },
{ type: 'table', name: 'INVENTORY', owner: 'STRONGLOOP' },
{ type: 'table', name: 'LOCATION', owner: 'STRONGLOOP' }];
ds.connector.discoverModelDefinitions = function(options, cb) {
process.nextTick(function() {
cb(null, models);
});
};
});
it('should discover model using `discoverModelDefinitions`', function(done) {
ds.discoverModelDefinitions({}, function(err, schemas) {
if (err) return done(err);
var tableNames = schemas.map(function(s) {
return s.name;
});
tableNames.should.be.eql(
['CUSTOMER', 'INVENTORY', 'LOCATION']
);
done();
});
});
it('should callback function, passed as options parameter', function(done) {
var options = function(err, schemas) {
if (err) return done(err);
var tableNames = schemas.map(function(s) {
return s.name;
});
tableNames.should.be.eql(
['CUSTOMER', 'INVENTORY', 'LOCATION']
);
done();
};
ds.discoverModelDefinitions(options);
});
it('should discover model using `discoverModelDefinitions` - promise variant', function(done) {
ds.discoverModelDefinitions({})
.then(function(schemas) {
var tableNames = schemas.map(function(s) {
return s.name;
});
tableNames.should.be.eql(
['CUSTOMER', 'INVENTORY', 'LOCATION']
);
done();
})
.catch(function(err) {
done(err);
});
});
});
describe('discoverModelProperties', function() {
var ds;
var modelProperties;
before(function() {
ds = new DataSource({ connector: 'memory' });
modelProperties = [{
owner: 'STRONGLOOP',
tableName: 'INVENTORY',
columnName: 'PRODUCT_ID',
dataType: 'varchar',
dataLength: 20,
dataPrecision: null,
dataScale: null,
nullable: 0,
},
{
owner: 'STRONGLOOP',
tableName: 'INVENTORY',
columnName: 'LOCATION_ID',
dataType: 'varchar',
dataLength: 20,
dataPrecision: null,
dataScale: null,
nullable: 0,
},
{
owner: 'STRONGLOOP',
tableName: 'INVENTORY',
columnName: 'AVAILABLE',
dataType: 'int',
dataLength: null,
dataPrecision: 10,
dataScale: 0,
nullable: 1,
},
{
owner: 'STRONGLOOP',
tableName: 'INVENTORY',
columnName: 'TOTAL',
dataType: 'int',
dataLength: null,
dataPrecision: 10,
dataScale: 0,
nullable: 1,
}];
ds.connector.discoverModelProperties = function(modelName, options, cb) {
process.nextTick(function() {
cb(null, modelProperties);
});
};
});
it('should callback function, passed as options parameter', function(done) {
var options = function(err, schemas) {
if (err) return done(err);
schemas.should.be.eql(modelProperties);
done();
};
ds.discoverModelProperties('INVENTORY', options);
});
it('should discover model metadata using `discoverModelProperties`', function(done) {
ds.discoverModelProperties('INVENTORY', {}, function(err, schemas) {
if (err) return done(err);
schemas.should.be.eql(modelProperties);
done();
});
});
it('should discover model metadata using `discoverModelProperties` - promise variant', function(done) {
ds.discoverModelProperties('INVENTORY', {})
.then(function(schemas) {
schemas.should.be.eql(modelProperties);
done();
})
.catch(function(err) {
done(err);
});
});
});
describe('discoverPrimaryKeys', function() {
var ds;
var modelProperties;
before(function() {
ds = new DataSource({ connector: 'memory' });
primaryKeys = [
{
owner: 'STRONGLOOP',
tableName: 'INVENTORY',
columnName: 'PRODUCT_ID',
keySeq: 1,
pkName: 'ID_PK'
},
{
owner: 'STRONGLOOP',
tableName: 'INVENTORY',
columnName: 'LOCATION_ID',
keySeq: 2,
pkName: 'ID_PK'
}];
ds.connector.discoverPrimaryKeys = function(modelName, options, cb) {
process.nextTick(function() {
cb(null, primaryKeys);
});
};
});
it('should discover primary key definitions using `discoverPrimaryKeys`', function(done) {
ds.discoverPrimaryKeys('INVENTORY', {}, function(err, modelPrimaryKeys) {
if (err) return done(err);
modelPrimaryKeys.should.be.eql(primaryKeys);
done();
});
});
it('should callback function, passed as options parameter', function(done) {
var options = function(err, modelPrimaryKeys) {
if (err) return done(err);
modelPrimaryKeys.should.be.eql(primaryKeys);
done();
};
ds.discoverPrimaryKeys('INVENTORY', options);
});
it('should discover primary key definitions using `discoverPrimaryKeys` - promise variant', function(done) {
ds.discoverPrimaryKeys('INVENTORY', {})
.then(function(modelPrimaryKeys) {
modelPrimaryKeys.should.be.eql(primaryKeys);
done();
})
.catch(function(err) {
done(err);
});
});
});
describe('discoverForeignKeys', function() {
var ds;
var modelProperties;
before(function() {
ds = new DataSource({ connector: 'memory' });
foreignKeys = [{
fkOwner: 'STRONGLOOP',
fkName: 'PRODUCT_FK',
fkTableName: 'INVENTORY',
fkColumnName: 'PRODUCT_ID',
keySeq: 1,
pkOwner: 'STRONGLOOP',
pkName: 'PRODUCT_PK',
pkTableName: 'PRODUCT',
pkColumnName: 'ID',
}];
ds.connector.discoverForeignKeys = function(modelName, options, cb) {
process.nextTick(function() {
cb(null, foreignKeys);
});
};
});
it('should discover foreign key definitions using `discoverForeignKeys`', function(done) {
ds.discoverForeignKeys('INVENTORY', {}, function(err, modelForeignKeys) {
if (err) return done(err);
modelForeignKeys.should.be.eql(foreignKeys);
done();
});
});
it('should callback function, passed as options parameter', function(done) {
var options = function(err, modelForeignKeys) {
if (err) return done(err);
modelForeignKeys.should.be.eql(foreignKeys);
done();
};
ds.discoverForeignKeys('INVENTORY', options);
});
it('should discover foreign key definitions using `discoverForeignKeys` - promise variant', function(done) {
ds.discoverForeignKeys('INVENTORY', {})
.then(function(modelForeignKeys) {
modelForeignKeys.should.be.eql(foreignKeys);
done();
})
.catch(function(err) {
done(err);
});
});
});
describe('discoverExportedForeignKeys', function() {
var ds;
var modelProperties;
before(function() {
ds = new DataSource({ connector: 'memory' });
exportedForeignKeys = [{
fkName: 'PRODUCT_FK',
fkOwner: 'STRONGLOOP',
fkTableName: 'INVENTORY',
fkColumnName: 'PRODUCT_ID',
keySeq: 1,
pkName: 'PRODUCT_PK',
pkOwner: 'STRONGLOOP',
pkTableName: 'PRODUCT',
pkColumnName: 'ID',
}];
ds.connector.discoverExportedForeignKeys = function(modelName, options, cb) {
process.nextTick(function() {
cb(null, exportedForeignKeys);
});
};
});
it('should discover foreign key definitions using `discoverExportedForeignKeys`', function(done) {
ds.discoverExportedForeignKeys('INVENTORY', {}, function(err, modelForeignKeys) {
if (err) return done(err);
modelForeignKeys.should.be.eql(exportedForeignKeys);
done();
});
});
it('should callback function, passed as options parameter', function(done) {
var options = function(err, modelForeignKeys) {
if (err) return done(err);
modelForeignKeys.should.be.eql(exportedForeignKeys);
done();
};
ds.discoverExportedForeignKeys('INVENTORY', options);
});
it('should discover foreign key definitions using `discoverExportedForeignKeys` - promise variant', function(done) {
ds.discoverExportedForeignKeys('INVENTORY', {})
.then(function(modelForeignKeys) {
modelForeignKeys.should.be.eql(exportedForeignKeys);
done();
})
.catch(function(err) {
done(err);
});
});
});
describe('Mock connector', function() {
mockConnectors = require('./mock-connectors');
describe('customFieldSettings', function() {
ds = new DataSource(mockConnectors.customFieldSettings);
it('should be present in discoverSchemas', function(done) {
ds.discoverSchemas('person', function(err, schemas) {
should.not.exist(err);
schemas.should.be.an.Object;
schemas['public.person'].properties.name
.custom.storage.should.equal('quantum');
done();
});
});
});
});