mssql.js

'use strict';

const expect = require('chai').expect;
const sinon = require('sinon');
const MSSQL_Client = require('../../../lib/dialects/mssql');
const knex = require('../../../knex');
const client = new MSSQL_Client({ client: 'mssql' });

describe('MSSQL SchemaBuilder', function () {
  let tableSql;
  const equal = require('assert').equal;

  it('throws when charset and collate are specified', function () {
    expect(() => {
      tableSql = client
        .schemaBuilder()
        .createTable('users', function (table) {
          table.increments('id');
          table.string('email');
          table.charset('utf8');
          table.collate('utf8_unicode_ci');
        })
        .toSQL();
    }).to.throw('Knex only supports charset statement with mysql');
  });

  it('basic create table', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.increments('id');
        this.string('email');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [id] int identity(1,1) not null primary key, [email] nvarchar(255)'
    );
  });

  it('create table like another', function () {
    tableSql = client
      .schemaBuilder()
      .createTableLike('users_like', 'users')
      .toSQL();
    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'SELECT * INTO [users_like] FROM [users] WHERE 0=1'
    );
  });

  it('create table like another with additionnal columns', function () {
    tableSql = client
      .schemaBuilder()
      .createTableLike('users_like', 'users', function (table) {
        table.text('add_col');
        table.integer('numeric_col');
      })
      .toSQL();
    expect(tableSql.length).to.equal(2);
    expect(tableSql[0].sql).to.equal(
      'SELECT * INTO [users_like] FROM [users] WHERE 0=1'
    );
    expect(tableSql[1].sql).to.equal(
      'ALTER TABLE [users_like] ADD [add_col] nvarchar(max), [numeric_col] int'
    );
  });

  describe('views', function () {
    let knexMssql;

    before(function () {
      knexMssql = knex({
        client: 'mssql',
        connection: {},
      });
    });

    it('basic create view', async function () {
      const viewSql = client
        .schemaBuilder()
        .createView('adults', function (view) {
          view.columns(['name']);
          view.as(knexMssql('users').select('name').where('age', '>', '18'));
        })
        .toSQL();
      equal(1, viewSql.length);
      expect(viewSql[0].sql).to.equal(
        "CREATE VIEW [adults] (name) AS select [name] from [users] where [age] > '18'"
      );
    });

    it('create view or replace', async function () {
      const viewSql = client
        .schemaBuilder()
        .createViewOrReplace('adults', function (view) {
          view.columns(['name']);
          view.as(knexMssql('users').select('name').where('age', '>', '18'));
        })
        .toSQL();
      equal(1, viewSql.length);
      expect(viewSql[0].sql).to.equal(
        "CREATE OR ALTER VIEW [adults] (name) AS select [name] from [users] where [age] > '18'"
      );
    });

    it('create view with check options', async function () {
      expect(() => {
        client
          .schemaBuilder()
          .createView('adults', function (view) {
            view.columns(['name']);
            view.as(knexMssql('users').select('name').where('age', '>', '18'));
            view.localCheckOption();
          })
          .toSQL();
      }).to.throw('check option definition is not supported by this dialect.');
    });

    it('drop view', function () {
      tableSql = client.schemaBuilder().dropView('users').toSQL();
      equal(1, tableSql.length);
      expect(tableSql[0].sql).to.equal('drop view [users]');
    });

    it('drop view with schema', function () {
      tableSql = client
        .schemaBuilder()
        .withSchema('myschema')
        .dropView('users')
        .toSQL();
      equal(1, tableSql.length);
      expect(tableSql[0].sql).to.equal('drop view [myschema].[users]');
    });

    it('rename column of view', function () {
      tableSql = client
        .schemaBuilder()
        .view('users', function (view) {
          view.column('oldName').rename('newName');
        })
        .toSQL();
      equal(1, tableSql.length);
      expect(tableSql[0].sql).to.equal("exec sp_rename ?, ?, 'COLUMN'");
      expect(tableSql[0].bindings[0]).to.equal('[users].oldName');
      expect(tableSql[0].bindings[1]).to.equal('newName');
    });

    it('rename view', function () {
      tableSql = client
        .schemaBuilder()
        .renameView('old_view', 'new_view')
        .toSQL();
      equal(1, tableSql.length);
      expect(tableSql[0].sql).to.equal('exec sp_rename ?, ?');
      expect(tableSql[0].bindings[0]).to.equal('old_view');
      expect(tableSql[0].bindings[1]).to.equal('new_view');
    });

    it('create materialized view', function () {
      expect(() => {
        tableSql = client
          .schemaBuilder()
          .createMaterializedView('mat_view', function (view) {
            view.columns(['name']);
            view.as(knexMssql('users').select('name').where('age', '>', '18'));
          })
          .toSQL();
      }).to.throw('materialized views are not supported by this dialect.');
    });

    it('refresh view', function () {
      expect(() => {
        tableSql = client
          .schemaBuilder()
          .refreshMaterializedView('view_to_refresh')
          .toSQL();
      }).to.throw('materialized views are not supported by this dialect.');
    });
  });

  it('test basic create table with incrementing without primary key', function () {
    tableSql = client.schemaBuilder().createTable('users', function (table) {
      table.increments('id', { primaryKey: false });
    });

    equal(1, tableSql.toSQL().length);
    expect(tableSql.toSQL()[0].sql).to.equal(
      'CREATE TABLE [users] ([id] int identity(1,1) not null)'
    );
    expect(tableSql.toQuery()).to.equal(
      'CREATE TABLE [users] ([id] int identity(1,1) not null)'
    );
  });

  it('test drop table', function () {
    tableSql = client.schemaBuilder().dropTable('users').toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('DROP TABLE [users]');
  });

  it('test drop table if exists', function () {
    tableSql = client.schemaBuilder().dropTableIfExists('users').toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      "if object_id('[users]', 'U') is not null DROP TABLE [users]"
    );
  });

  it('test drop column', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.dropColumn('foo');
      })
      .toSQL();

    equal(2, tableSql.length);
    expect(tableSql[0].sql).to.includes(
      `IF @constraint IS NOT NULL EXEC('ALTER TABLE users DROP CONSTRAINT ' + @constraint)`
    );
    expect(tableSql[1].sql).to.equal('ALTER TABLE [users] DROP COLUMN [foo]');
  });

  it('drops multiple columns with an array', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.dropColumn(['foo', 'bar']);
      })
      .toSQL();

    equal(3, tableSql.length);
    expect(tableSql[0].sql).to.includes(
      `IF @constraint IS NOT NULL EXEC('ALTER TABLE users DROP CONSTRAINT ' + @constraint)`
    );
    expect(tableSql[1].sql).to.includes(
      `IF @constraint IS NOT NULL EXEC('ALTER TABLE users DROP CONSTRAINT ' + @constraint)`
    );
    expect(tableSql[2].sql).to.equal(
      'ALTER TABLE [users] DROP COLUMN [foo], [bar]'
    );
  });

  it('drops multiple columns as multiple arguments', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.dropColumn('foo', 'bar');
      })
      .toSQL();

    equal(3, tableSql.length);
    expect(tableSql[0].sql).to.includes(
      `IF @constraint IS NOT NULL EXEC('ALTER TABLE users DROP CONSTRAINT ' + @constraint)`
    );
    expect(tableSql[1].sql).to.includes(
      `IF @constraint IS NOT NULL EXEC('ALTER TABLE users DROP CONSTRAINT ' + @constraint)`
    );
    expect(tableSql[2].sql).to.equal(
      'ALTER TABLE [users] DROP COLUMN [foo], [bar]'
    );
  });

  it('test drop primary', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.dropPrimary('testconstraintname');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] DROP CONSTRAINT [testconstraintname]'
    );
  });

  it('test drop unique', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.dropUnique('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'DROP INDEX [users_foo_unique] ON [users]'
    );
  });

  it('should alter columns with the alter flag', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.string('foo').alter();
        this.string('bar');
      })
      .toSQL();

    equal(2, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [bar] nvarchar(255)'
    );
    expect(tableSql[1].sql).to.equal(
      'ALTER TABLE [users] ALTER COLUMN [foo] nvarchar(255)'
    );
  });

  it('should alter multiple columns over multiple queries', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.string('foo').alter();
        this.string('bar').alter();
      })
      .toSQL();

    equal(2, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ALTER COLUMN [foo] nvarchar(255)'
    );
    expect(tableSql[1].sql).to.equal(
      'ALTER TABLE [users] ALTER COLUMN [bar] nvarchar(255)'
    );
  });

  it('should drop existing default constraint before setting a new one', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.string('foo').defaultTo('test').alter();
        this.string('bar').alter();
      })
      .toSQL();

    equal(tableSql.length, 4);
    expect(tableSql[0].sql).to.includes(
      `IF @constraint IS NOT NULL EXEC('ALTER TABLE users DROP CONSTRAINT ' + @constraint)`
    );
    expect(tableSql[1].sql).to.equal(
      'ALTER TABLE [users] ALTER COLUMN [foo] nvarchar(255)'
    );
    expect(tableSql[2].sql).to.equal(
      'ALTER TABLE [users] ALTER COLUMN [bar] nvarchar(255)'
    );
    expect(tableSql[3].sql).to.equal(
      "ALTER TABLE [users] ADD CONSTRAINT [users_foo_default] DEFAULT 'test' FOR [foo]"
    );
  });

  it('should add default constraint separately', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.string('foo').nullable().defaultTo('test').alter();
      })
      .toSQL();

    equal(tableSql.length, 3);
    expect(tableSql[0].sql).to.includes(
      `IF @constraint IS NOT NULL EXEC('ALTER TABLE users DROP CONSTRAINT ' + @constraint)`
    );
    expect(tableSql[1].sql).to.equal(
      'ALTER TABLE [users] ALTER COLUMN [foo] nvarchar(255) null'
    );
    expect(tableSql[2].sql).to.equal(
      "ALTER TABLE [users] ADD CONSTRAINT [users_foo_default] DEFAULT 'test' FOR [foo]"
    );
  });

  it('test drop unique, custom', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.dropUnique(null, 'foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('DROP INDEX [foo] ON [users]');
  });

  it('test drop index', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.dropIndex('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('DROP INDEX [users_foo_index] ON [users]');
  });

  it('test drop index, custom', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.dropIndex(null, 'foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('DROP INDEX [foo] ON [users]');
  });

  it('test drop foreign', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.dropForeign('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] DROP CONSTRAINT [users_foo_foreign]'
    );
  });

  it('test drop foreign, custom', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.dropForeign(null, 'foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] DROP CONSTRAINT [foo]'
    );
  });

  it('test drop timestamps', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.dropTimestamps();
      })
      .toSQL();

    equal(3, tableSql.length);
    expect(tableSql[0].sql).to.includes(
      `IF @constraint IS NOT NULL EXEC('ALTER TABLE users DROP CONSTRAINT ' + @constraint)`
    );
    expect(tableSql[1].sql).to.includes(
      `IF @constraint IS NOT NULL EXEC('ALTER TABLE users DROP CONSTRAINT ' + @constraint)`
    );
    expect(tableSql[2].sql).to.equal(
      'ALTER TABLE [users] DROP COLUMN [created_at], [updated_at]'
    );
  });

  it('test rename table', function () {
    tableSql = client.schemaBuilder().renameTable('users', 'foo').toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('exec sp_rename ?, ?');
    expect(tableSql[0].bindings[0]).to.equal('users');
    expect(tableSql[0].bindings[1]).to.equal('foo');
  });

  it('test has table', function () {
    tableSql = client.schemaBuilder().hasTable('users').toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'select object_id from sys.tables where object_id = object_id(?)'
    );
    expect(tableSql[0].bindings[0]).to.equal('[users]');
  });

  it('test has table with schema', function () {
    tableSql = client
      .schemaBuilder()
      .withSchema('schema')
      .hasTable('users')
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'select object_id from sys.tables where object_id = object_id(?)'
    );
    expect(tableSql[0].bindings[0]).to.equal('[schema].[users]');
  });

  it('test rename table with schema', function () {
    tableSql = client
      .schemaBuilder()
      .withSchema('schema')
      .renameTable('users', 'foo')
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('exec sp_rename ?, ?');
    expect(tableSql[0].bindings[0]).to.equal('schema.users');
    expect(tableSql[0].bindings[1]).to.equal('foo');
  });

  it('test has column', function () {
    tableSql = client.schemaBuilder().hasColumn('users', 'foo').toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'select object_id from sys.columns where name = ? and object_id = object_id(?)'
    );
    expect(tableSql[0].bindings[0]).to.equal('foo');
    expect(tableSql[0].bindings[1]).to.equal('[users]');
  });

  it('test has column with schema', function () {
    tableSql = client
      .schemaBuilder()
      .withSchema('schema')
      .hasColumn('users', 'foo')
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'select object_id from sys.columns where name = ? and object_id = object_id(?)'
    );
    expect(tableSql[0].bindings[0]).to.equal('foo');
    expect(tableSql[0].bindings[1]).to.equal('[schema].[users]');
  });

  it('test adding primary key', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.primary('foo', 'bar');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD CONSTRAINT [bar] PRIMARY KEY ([foo])'
    );
  });

  it('test adding unique key', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.unique('foo', 'bar');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'CREATE UNIQUE INDEX [bar] ON [users] ([foo]) WHERE [foo] IS NOT NULL'
    );
  });

  it('test adding index', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.index(['foo', 'bar'], 'baz');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'CREATE INDEX [baz] ON [users] ([foo], [bar])'
    );
  });

  it('test adding index with a predicate', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function (table) {
        table.index(['foo', 'bar'], 'baz', {
          predicate: client.queryBuilder().whereRaw('email = "foo@bar"'),
        });
      })
      .toSQL();
    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'CREATE INDEX [baz] ON [users] ([foo], [bar]) where email = "foo@bar"'
    );
  });

  it('test adding index with a where not null predicate', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function (table) {
        table.index(['foo', 'bar'], 'baz', {
          predicate: client.queryBuilder().whereNotNull('email'),
        });
      })
      .toSQL();
    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'CREATE INDEX [baz] ON [users] ([foo], [bar]) where [email] is not null'
    );
  });

  it('test adding foreign key', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.foreign('foo_id').references('id').on('orders');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD CONSTRAINT [users_foo_id_foreign] FOREIGN KEY ([foo_id]) REFERENCES [orders] ([id])'
    );

    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.integer('foo_id').references('id').on('orders');
      })
      .toSQL();

    equal(2, tableSql.length);
    expect(tableSql[0].sql).to.equal('ALTER TABLE [users] ADD [foo_id] int');
    expect(tableSql[1].sql).to.equal(
      'ALTER TABLE [users] ADD CONSTRAINT [users_foo_id_foreign] FOREIGN KEY ([foo_id]) REFERENCES [orders] ([id])'
    );
  });

  it('adding foreign key with specific identifier', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.foreign('foo_id', 'fk_foo').references('id').on('orders');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD CONSTRAINT [fk_foo] FOREIGN KEY ([foo_id]) REFERENCES [orders] ([id])'
    );

    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.integer('foo_id')
          .references('id')
          .on('orders')
          .withKeyName('fk_foo');
      })
      .toSQL();

    equal(2, tableSql.length);
    expect(tableSql[0].sql).to.equal('ALTER TABLE [users] ADD [foo_id] int');
    expect(tableSql[1].sql).to.equal(
      'ALTER TABLE [users] ADD CONSTRAINT [fk_foo] FOREIGN KEY ([foo_id]) REFERENCES [orders] ([id])'
    );
  });

  it('adds foreign key with deferred throw error ', function () {
    const addDeferredConstraint = () => {
      client
        .schemaBuilder()
        .createTable('person', function (table) {
          table
            .integer('user_id')
            .notNull()
            .references('users.id')
            .deferrable('immediate');
        })
        .toSQL();
    };
    expect(addDeferredConstraint).to.throw('mssql does not support deferrable');
  });

  it('adds foreign key with onUpdate and onDelete', function () {
    tableSql = client
      .schemaBuilder()
      .createTable('person', function (table) {
        table
          .integer('user_id')
          .notNull()
          .references('users.id')
          .onDelete('SET NULL');
        table
          .integer('account_id')
          .notNull()
          .references('id')
          .inTable('accounts')
          .onUpdate('cascade');
      })
      .toSQL();
    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'CREATE TABLE [person] ([user_id] int not null, [account_id] int not null, CONSTRAINT [person_user_id_foreign] FOREIGN KEY ([user_id]) REFERENCES [users] ([id]) ON DELETE SET NULL, CONSTRAINT [person_account_id_foreign] FOREIGN KEY ([account_id]) REFERENCES [accounts] ([id]) ON UPDATE cascade)'
    );
  });

  it('test adding incrementing id', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.increments('id');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [id] int identity(1,1) not null primary key'
    );
  });

  it('test adding big incrementing id', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.bigIncrements('id');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [id] bigint identity(1,1) not null primary key'
    );
  });

  it('test adding big incrementing id without primary key', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.bigIncrements('id', { primaryKey: false });
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [id] bigint identity(1,1) not null'
    );
  });

  it('test adding column after another column', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.string('name').after('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [name] nvarchar(255)'
    );
  });

  it('test adding column on the first place', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.string('first_name').first();
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [first_name] nvarchar(255)'
    );
  });

  it('test adding string', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.string('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [foo] nvarchar(255)'
    );
  });

  it('uses the varchar column constraint', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.string('foo', 100);
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [foo] nvarchar(100)'
    );
  });

  it('chains notNull and defaultTo', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.string('foo', 100).notNull().defaultTo('bar');
      })
      .toSQL();
    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      "ALTER TABLE [users] ADD [foo] nvarchar(100) not null CONSTRAINT [users_foo_default] DEFAULT 'bar'"
    );
  });

  it('allows for raw values in the default field', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.string('foo', 100)
          .nullable()
          .defaultTo(client.raw('CURRENT TIMESTAMP'));
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [foo] nvarchar(100) null CONSTRAINT [users_foo_default] DEFAULT CURRENT TIMESTAMP'
    );
  });

  it('allows custom named default constraints', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.integer('foo').defaultTo('test', { constraintName: 'DF_foo' });
      })
      .toSQL();
    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      "ALTER TABLE [users] ADD [foo] int CONSTRAINT [DF_foo] DEFAULT 'test'"
    );
  });

  it("doesn't name constraints when opt-out", function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.integer('foo').defaultTo('test', { constraintName: '' });
      })
      .toSQL();
    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      "ALTER TABLE [users] ADD [foo] int DEFAULT 'test'"
    );
  });

  it('test adding text', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.text('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [foo] nvarchar(max)'
    );
  });

  it('test adding big integer', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.bigInteger('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('ALTER TABLE [users] ADD [foo] bigint');
  });

  it('test adding integer', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.integer('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('ALTER TABLE [users] ADD [foo] int');
  });

  it('test adding medium integer', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.mediumint('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('ALTER TABLE [users] ADD [foo] int');
  });

  it('test adding small integer', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.smallint('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('ALTER TABLE [users] ADD [foo] smallint');
  });

  it('test adding tiny integer', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.tinyint('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('ALTER TABLE [users] ADD [foo] tinyint');
  });

  it('test adding float', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.float('foo', 5, 2);
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('ALTER TABLE [users] ADD [foo] float');
  });

  it('test adding double', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.double('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('ALTER TABLE [users] ADD [foo] float');
  });

  it('test adding double specifying precision', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.double('foo', 15, 8);
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('ALTER TABLE [users] ADD [foo] float');
  });

  it('test adding decimal', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.decimal('foo', 5, 2);
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [foo] decimal(5, 2)'
    );
  });

  it('test adding decimal, no precision', function () {
    expect(() => {
      tableSql = client
        .schemaBuilder()
        .table('users', function () {
          this.decimal('foo', null);
        })
        .toSQL();
    }).to.throw('Specifying no precision on decimal columns is not supported');
  });

  it('set comment to undefined', function () {
    expect(function () {
      client
        .schemaBuilder()
        .table('user', function (t) {
          t.comment();
        })
        .toSQL();
    }).to.throw(TypeError);
  });

  it('set comment to null', function () {
    expect(function () {
      client
        .schemaBuilder()
        .table('user', function (t) {
          t.comment(null);
        })
        .toSQL();
    }).to.throw(TypeError);
  });

  it('test adding boolean', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.boolean('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('ALTER TABLE [users] ADD [foo] bit');
  });

  it('test adding enum', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.enum('foo', ['bar', 'baz']);
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [foo] nvarchar(100)'
    );
  });

  it('test adding date', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.date('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('ALTER TABLE [users] ADD [foo] date');
  });

  it('test adding date time', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.dateTime('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('ALTER TABLE [users] ADD [foo] datetime2');
  });

  it('test adding time', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.time('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('ALTER TABLE [users] ADD [foo] time');
  });

  it('test adding time stamp', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.timestamp('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal('ALTER TABLE [users] ADD [foo] datetime2');
  });

  it('test adding time stamp with timezone', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.timestamp('foo', {
          useTz: true,
        });
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [foo] datetimeoffset'
    );
  });

  it('test adding time stamps', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.timestamps();
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [created_at] datetime2, [updated_at] datetime2'
    );
  });

  it('test adding binary', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.binary('foo');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [foo] varbinary(max)'
    );
  });

  it('test adding decimal', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.decimal('foo', 2, 6);
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [foo] decimal(2, 6)'
    );
  });

  it('test adding multiple columns, #1348', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function () {
        this.integer('foo');
        this.integer('baa');
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD [foo] int, [baa] int'
    );
  });

  it('is possible to set raw statements in defaultTo, #146', function () {
    tableSql = client
      .schemaBuilder()
      .createTable('default_raw_test', function (t) {
        t.timestamp('created_at').defaultTo(client.raw('GETDATE()'));
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'CREATE TABLE [default_raw_test] ([created_at] datetime2 CONSTRAINT [default_raw_test_created_at_default] DEFAULT GETDATE())'
    );
  });

  it('allows dropping a unique compound index', function () {
    tableSql = client
      .schemaBuilder()
      .table('composite_key_test', function (t) {
        t.dropUnique(['column_a', 'column_b']);
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'DROP INDEX [composite_key_test_column_a_column_b_unique] ON [composite_key_test]'
    );
  });

  it('allows default as alias for defaultTo', function () {
    tableSql = client
      .schemaBuilder()
      .createTable('default_raw_test', function (t) {
        t.timestamp('created_at').default(client.raw('GETDATE()'));
      })
      .toSQL();

    equal(1, tableSql.length);
    expect(tableSql[0].sql).to.equal(
      'CREATE TABLE [default_raw_test] ([created_at] datetime2 CONSTRAINT [default_raw_test_created_at_default] DEFAULT GETDATE())'
    );
  });

  it('#1430 - .primary & .dropPrimary takes columns and constraintName', function () {
    tableSql = client
      .schemaBuilder()
      .table('users', function (t) {
        t.primary(['test1', 'test2'], 'testconstraintname');
      })
      .toSQL();
    expect(tableSql[0].sql).to.equal(
      'ALTER TABLE [users] ADD CONSTRAINT [testconstraintname] PRIMARY KEY ([test1], [test2])'
    );

    tableSql = client
      .schemaBuilder()
      .createTable('users', function (t) {
        t.string('test').primary('testconstraintname');
      })
      .toSQL();

    expect(tableSql[0].sql).to.equal(
      'CREATE TABLE [users] ([test] nvarchar(255), CONSTRAINT [testconstraintname] PRIMARY KEY ([test]))'
    );
  });

  describe('queryContext', function () {
    let spy;
    let originalWrapIdentifier;

    before(function () {
      spy = sinon.spy();
      originalWrapIdentifier = client.config.wrapIdentifier;
      client.config.wrapIdentifier = function (value, wrap, queryContext) {
        spy(value, queryContext);
        return wrap(value);
      };
    });

    beforeEach(function () {
      spy.resetHistory();
    });

    after(function () {
      client.config.wrapIdentifier = originalWrapIdentifier;
    });

    it('SchemaCompiler passes queryContext to wrapIdentifier via TableCompiler', function () {
      client
        .schemaBuilder()
        .queryContext('table context')
        .createTable('users', function (table) {
          table.increments('id');
          table.string('email');
        })
        .toSQL();

      expect(spy.callCount).to.equal(3);
      expect(spy.firstCall.args).to.deep.equal(['id', 'table context']);
      expect(spy.secondCall.args).to.deep.equal(['email', 'table context']);
      expect(spy.thirdCall.args).to.deep.equal(['users', 'table context']);
    });

    it('TableCompiler passes queryContext to wrapIdentifier', function () {
      client
        .schemaBuilder()
        .createTable('users', function (table) {
          table.increments('id').queryContext('id context');
          table.string('email').queryContext('email context');
        })
        .toSQL();

      expect(spy.callCount).to.equal(3);
      expect(spy.firstCall.args).to.deep.equal(['id', 'id context']);
      expect(spy.secondCall.args).to.deep.equal(['email', 'email context']);
      expect(spy.thirdCall.args).to.deep.equal(['users', undefined]);
    });

    it('TableCompiler allows overwriting queryContext from SchemaCompiler', function () {
      client
        .schemaBuilder()
        .queryContext('schema context')
        .createTable('users', function (table) {
          table.queryContext('table context');
          table.increments('id');
          table.string('email');
        })
        .toSQL();

      expect(spy.callCount).to.equal(3);
      expect(spy.firstCall.args).to.deep.equal(['id', 'table context']);
      expect(spy.secondCall.args).to.deep.equal(['email', 'table context']);
      expect(spy.thirdCall.args).to.deep.equal(['users', 'table context']);
    });

    it('ColumnCompiler allows overwriting queryContext from TableCompiler', function () {
      client
        .schemaBuilder()
        .queryContext('schema context')
        .createTable('users', function (table) {
          table.queryContext('table context');
          table.increments('id').queryContext('id context');
          table.string('email').queryContext('email context');
        })
        .toSQL();

      expect(spy.callCount).to.equal(3);
      expect(spy.firstCall.args).to.deep.equal(['id', 'id context']);
      expect(spy.secondCall.args).to.deep.equal(['email', 'email context']);
      expect(spy.thirdCall.args).to.deep.equal(['users', 'table context']);
    });
  });
});