removeColumn.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('removeColumn', () => {
describe('(without a schema)', () => {
beforeEach(function() {
return this.queryInterface.createTable('users', {
id: {
type: DataTypes.INTEGER,
primaryKey: true,
autoIncrement: true
},
firstName: {
type: DataTypes.STRING,
defaultValue: 'Someone'
},
lastName: {
type: DataTypes.STRING
},
manager: {
type: DataTypes.INTEGER,
references: {
model: 'users',
key: 'id'
}
},
email: {
type: DataTypes.STRING,
unique: true
}
});
});
it('should be able to remove a column with a default value', function() {
return this.queryInterface.removeColumn('users', 'firstName').then(() => {
return this.queryInterface.describeTable('users');
}).then(table => {
expect(table).to.not.have.property('firstName');
});
});
it('should be able to remove a column without default value', function() {
return this.queryInterface.removeColumn('users', 'lastName').then(() => {
return this.queryInterface.describeTable('users');
}).then(table => {
expect(table).to.not.have.property('lastName');
});
});
it('should be able to remove a column with a foreign key constraint', function() {
return this.queryInterface.removeColumn('users', 'manager').then(() => {
return this.queryInterface.describeTable('users');
}).then(table => {
expect(table).to.not.have.property('manager');
});
});
it('should be able to remove a column with primaryKey', function() {
return this.queryInterface.removeColumn('users', 'manager').then(() => {
return this.queryInterface.describeTable('users');
}).then(table => {
expect(table).to.not.have.property('manager');
return this.queryInterface.removeColumn('users', 'id');
}).then(() => {
return this.queryInterface.describeTable('users');
}).then(table => {
expect(table).to.not.have.property('id');
});
});
// From MSSQL documentation on ALTER COLUMN:
// The modified column cannot be any one of the following:
// - Used in a CHECK or UNIQUE constraint.
// https://docs.microsoft.com/en-us/sql/t-sql/statements/alter-table-transact-sql#arguments
if (dialect !== 'mssql') {
it('should be able to remove a column with unique contraint', function() {
return this.queryInterface.removeColumn('users', 'email').then(() => {
return this.queryInterface.describeTable('users');
}).then(table => {
expect(table).to.not.have.property('email');
});
});
}
});
describe('(with a schema)', () => {
beforeEach(function() {
return this.sequelize.createSchema('archive').then(() => {
return this.queryInterface.createTable({
tableName: 'users',
schema: 'archive'
}, {
id: {
type: DataTypes.INTEGER,
primaryKey: true,
autoIncrement: true
},
firstName: {
type: DataTypes.STRING,
defaultValue: 'Someone'
},
lastName: {
type: DataTypes.STRING
},
email: {
type: DataTypes.STRING,
unique: true
}
});
});
});
it('should be able to remove a column with a default value', function() {
return this.queryInterface.removeColumn({
tableName: 'users',
schema: 'archive'
}, 'firstName'
).then(() => {
return this.queryInterface.describeTable({
tableName: 'users',
schema: 'archive'
});
}).then(table => {
expect(table).to.not.have.property('firstName');
});
});
it('should be able to remove a column without default value', function() {
return this.queryInterface.removeColumn({
tableName: 'users',
schema: 'archive'
}, 'lastName'
).then(() => {
return this.queryInterface.describeTable({
tableName: 'users',
schema: 'archive'
});
}).then(table => {
expect(table).to.not.have.property('lastName');
});
});
it('should be able to remove a column with primaryKey', function() {
return this.queryInterface.removeColumn({
tableName: 'users',
schema: 'archive'
}, 'id').then(() => {
return this.queryInterface.describeTable({
tableName: 'users',
schema: 'archive'
});
}).then(table => {
expect(table).to.not.have.property('id');
});
});
// From MSSQL documentation on ALTER COLUMN:
// The modified column cannot be any one of the following:
// - Used in a CHECK or UNIQUE constraint.
// https://docs.microsoft.com/en-us/sql/t-sql/statements/alter-table-transact-sql#arguments
if (dialect !== 'mssql') {
it('should be able to remove a column with unique contraint', function() {
return this.queryInterface.removeColumn({
tableName: 'users',
schema: 'archive'
}, 'email').then(() => {
return this.queryInterface.describeTable({
tableName: 'users',
schema: 'archive'
});
}).then(table => {
expect(table).to.not.have.property('email');
});
});
}
});
});
});