describeTable.test.js
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'use strict';
const chai = require('chai');
const expect = chai.expect;
const Support = require('../support');
const DataTypes = require('../../../lib/data-types');
const dialect = Support.getTestDialect();
describe(Support.getTestDialectTeaser('QueryInterface'), () => {
beforeEach(function() {
this.sequelize.options.quoteIdenifiers = true;
this.queryInterface = this.sequelize.getQueryInterface();
});
afterEach(function() {
return Support.dropTestSchemas(this.sequelize);
});
describe('describeTable', () => {
if (Support.sequelize.dialect.supports.schemas) {
it('reads the metadata of the table with schema', function() {
const MyTable1 = this.sequelize.define('my_table', {
username1: DataTypes.STRING
});
const MyTable2 = this.sequelize.define('my_table', {
username2: DataTypes.STRING
}, { schema: 'test_meta' });
return this.sequelize.createSchema('test_meta')
.then(() => {
return MyTable1.sync({ force: true });
})
.then(() => {
return MyTable2.sync({ force: true });
})
.then(() => {
return this.queryInterface.describeTable('my_tables', 'test_meta');
})
.then(metadata => {
expect(metadata.username2).not.to.be.undefined;
})
.then(() => {
return this.queryInterface.describeTable('my_tables');
})
.then(metadata => {
expect(metadata.username1).not.to.be.undefined;
return this.sequelize.dropSchema('test_meta');
});
});
}
it('rejects when no data is available', function() {
return expect(
this.queryInterface.describeTable('_some_random_missing_table')
).to.be.rejectedWith('No description found for "_some_random_missing_table" table. Check the table name and schema; remember, they _are_ case sensitive.');
});
it('reads the metadata of the table', function() {
const Users = this.sequelize.define('_Users', {
username: DataTypes.STRING,
city: {
type: DataTypes.STRING,
defaultValue: null,
comment: 'Users City'
},
isAdmin: DataTypes.BOOLEAN,
enumVals: DataTypes.ENUM('hello', 'world')
}, { freezeTableName: true });
return Users.sync({ force: true }).then(() => {
return this.queryInterface.describeTable('_Users').then(metadata => {
const id = metadata.id;
const username = metadata.username;
const city = metadata.city;
const isAdmin = metadata.isAdmin;
const enumVals = metadata.enumVals;
expect(id.primaryKey).to.be.true;
if (['mysql', 'mssql'].includes(dialect)) {
expect(id.autoIncrement).to.be.true;
}
let assertVal = 'VARCHAR(255)';
switch (dialect) {
case 'postgres':
assertVal = 'CHARACTER VARYING(255)';
break;
case 'mssql':
assertVal = 'NVARCHAR(255)';
break;
}
expect(username.type).to.equal(assertVal);
expect(username.allowNull).to.be.true;
switch (dialect) {
case 'sqlite':
expect(username.defaultValue).to.be.undefined;
break;
default:
expect(username.defaultValue).to.be.null;
}
switch (dialect) {
case 'sqlite':
expect(city.defaultValue).to.be.null;
break;
}
assertVal = 'TINYINT(1)';
switch (dialect) {
case 'postgres':
assertVal = 'BOOLEAN';
break;
case 'mssql':
assertVal = 'BIT';
break;
}
expect(isAdmin.type).to.equal(assertVal);
expect(isAdmin.allowNull).to.be.true;
switch (dialect) {
case 'sqlite':
expect(isAdmin.defaultValue).to.be.undefined;
break;
default:
expect(isAdmin.defaultValue).to.be.null;
}
if (dialect.match(/^postgres/)) {
expect(enumVals.special).to.be.instanceof(Array);
expect(enumVals.special).to.have.length(2);
} else if (dialect === 'mysql') {
expect(enumVals.type).to.eql('ENUM(\'hello\',\'world\')');
}
if (dialect === 'postgres' || dialect === 'mysql' || dialect === 'mssql') {
expect(city.comment).to.equal('Users City');
expect(username.comment).to.equal(null);
}
});
});
});
it('should correctly determine the primary key columns', function() {
const Country = this.sequelize.define('_Country', {
code: { type: DataTypes.STRING, primaryKey: true },
name: { type: DataTypes.STRING, allowNull: false }
}, { freezeTableName: true });
const Alumni = this.sequelize.define('_Alumni', {
year: { type: DataTypes.INTEGER, primaryKey: true },
num: { type: DataTypes.INTEGER, primaryKey: true },
username: { type: DataTypes.STRING, allowNull: false, unique: true },
dob: { type: DataTypes.DATEONLY, allowNull: false },
dod: { type: DataTypes.DATEONLY, allowNull: true },
city: { type: DataTypes.STRING, allowNull: false },
ctrycod: {
type: DataTypes.STRING, allowNull: false,
references: { model: Country, key: 'code' }
}
}, { freezeTableName: true });
return Country.sync({ force: true }).then(() => {
return this.queryInterface.describeTable('_Country').then(
metacountry => {
expect(metacountry.code.primaryKey).to.eql(true);
expect(metacountry.name.primaryKey).to.eql(false);
return Alumni.sync({ force: true }).then(() => {
return this.queryInterface.describeTable('_Alumni').then(
metalumni => {
expect(metalumni.year.primaryKey).to.eql(true);
expect(metalumni.num.primaryKey).to.eql(true);
expect(metalumni.username.primaryKey).to.eql(false);
expect(metalumni.dob.primaryKey).to.eql(false);
expect(metalumni.dod.primaryKey).to.eql(false);
expect(metalumni.ctrycod.primaryKey).to.eql(false);
expect(metalumni.city.primaryKey).to.eql(false);
});
});
});
});
});
});
});