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alter.spec.js
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alter.spec.js
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const { expect } = require('chai');
const sinon = require('sinon');
const {
Db,
getAllDbs,
getKnexForDb,
} = require('../util/knex-instance-provider');
const { isMysql } = require('../../util/db-helpers');
const QUERY_TABLE =
'SELECT sql FROM sqlite_master WHERE type="table" AND tbl_name="alter_table"';
describe('Schema', () => {
describe('Alter', () => {
getAllDbs()
.filter((db) => db === Db.SQLite)
.forEach((db) => {
describe(db, () => {
let knex;
before(async () => {
sinon.stub(Math, 'random').returns(0.1);
knex = getKnexForDb(db);
});
after(() => {
sinon.restore();
return knex.destroy();
});
beforeEach(async () => {
await knex.schema.createTable('alter_table', (table) => {
table.integer('column_integer');
table.string('column_string');
table.dateTime('column_datetime');
table.integer('column_defaultTo').defaultTo(0);
table.boolean('column_boolean_defaultTo').defaultTo(false);
table.string('column_notNullable').notNullable();
table
.dateTime('column_defaultToAndNotNullable')
.defaultTo(0)
.notNullable();
table.boolean('column_nullable').nullable();
});
await knex('alter_table').insert({
column_integer: 1,
column_string: '1',
column_datetime: 1614349736,
column_notNullable: 'text',
column_nullable: true,
});
});
afterEach(async () => {
await knex.schema.dropTable('alter_table');
});
describe('indexes and unique keys', () => {
it('alter table add indexes', async function () {
if (!isMysql(knex)) {
this.skip();
}
await knex.schema
.alterTable('alter_table', (table) => {
table.index(['column_string', 'column_datetime'], 'idx_1', {
indexType: 'FULLTEXT',
storageEngineIndexType: 'BTREE',
});
table.unique('column_notNullable', {
indexName: 'idx_2',
storageEngineIndexType: 'HASH',
});
})
.testSql((tester) => {
tester('mysql', [
'alter table `alter_table` add FULLTEXT index `idx_1`(`column_string`, `column_datetime`) using BTREE',
'alter table `alter_table` add unique `idx_2`(`column_notNullable`) using HASH',
]);
});
});
});
describe('alterColumns', () => {
it('alters the type of columns', async () => {
await knex.schema.alterTable('alter_table', (table) => {
table.string('column_integer').alter();
table.integer('column_string').alter();
table.date('column_datetime').alter();
});
const item_one = (await knex('alter_table'))[0];
const tableAfter = (await knex.raw(QUERY_TABLE))[0].sql;
expect(item_one.column_integer).to.be.a('string');
expect(item_one.column_string).to.be.a('number');
expect(item_one.column_datetime).to.be.a('number');
expect(tableAfter).to.equal(
"CREATE TABLE \"alter_table\" (`column_integer` varchar(255), `column_string` integer, `column_datetime` date, `column_defaultTo` integer DEFAULT '0', `column_boolean_defaultTo` boolean DEFAULT '0', `column_notNullable` varchar(255) NOT NULL, `column_defaultToAndNotNullable` datetime NOT NULL DEFAULT '0', `column_nullable` boolean NULL)"
);
});
it('adds default and not null constraints', async () => {
await knex.schema.alterTable('alter_table', (table) => {
table.integer('column_integer').defaultTo(0).alter();
table.string('column_string').notNullable().alter();
table
.dateTime('column_datetime')
.defaultTo(0)
.notNullable()
.alter();
});
await knex('alter_table').insert({
column_string: '1',
column_notNullable: 'text',
});
const item_two = (await knex('alter_table'))[1];
const tableAfter = (await knex.raw(QUERY_TABLE))[0].sql;
expect(item_two.column_integer).to.equal(0);
expect(item_two.column_datetime).to.equal(0);
await expect(
knex('alter_table').insert({ column_notNullable: 'text' })
).to.be.rejectedWith(
Error,
"insert into `alter_table` (`column_notNullable`) values ('text') - SQLITE_CONSTRAINT: NOT NULL constraint failed: alter_table.column_string"
);
expect(tableAfter).to.equal(
"CREATE TABLE \"alter_table\" (`column_integer` integer DEFAULT '0', `column_string` varchar(255) NOT NULL, `column_datetime` datetime NOT NULL DEFAULT '0', `column_defaultTo` integer DEFAULT '0', `column_boolean_defaultTo` boolean DEFAULT '0', `column_notNullable` varchar(255) NOT NULL, `column_defaultToAndNotNullable` datetime NOT NULL DEFAULT '0', `column_nullable` boolean NULL)"
);
});
it('removes not specified default and not null constraints', async () => {
await knex.schema.alterTable('alter_table', (table) => {
table.integer('column_defaultTo').alter();
table.boolean('column_boolean_defaultTo').alter();
table.string('column_notNullable').alter();
table.dateTime('column_defaultToAndNotNullable').alter();
});
await knex('alter_table').insert({});
const item_two = (await knex('alter_table'))[1];
const tableAfter = (await knex.raw(QUERY_TABLE))[0].sql;
expect(item_two.column_defaultTo).to.be.null;
expect(item_two.column_boolean_defaultTo).to.be.null;
expect(item_two.column_notNullable).to.be.null;
expect(item_two.column_defaultToAndNotNullable).to.be.null;
expect(tableAfter).to.equal(
'CREATE TABLE "alter_table" (`column_integer` integer, `column_string` varchar(255), `column_datetime` datetime, `column_defaultTo` integer, `column_boolean_defaultTo` boolean, `column_notNullable` varchar(255), `column_defaultToAndNotNullable` datetime, `column_nullable` boolean NULL)'
);
});
it('removes an existing null constraint if a not null constraint is added to a column', async () => {
await knex.schema.alterTable('alter_table', (table) => {
table.boolean('column_nullable').notNullable().alter();
});
const tableAfter = (await knex.raw(QUERY_TABLE))[0].sql;
await expect(
knex('alter_table').insert({ column_notNullable: 'text' })
).to.be.rejectedWith(
Error,
"insert into `alter_table` (`column_notNullable`) values ('text') - SQLITE_CONSTRAINT: NOT NULL constraint failed: alter_table.column_nullable"
);
expect(tableAfter).to.equal(
"CREATE TABLE \"alter_table\" (`column_integer` integer, `column_string` varchar(255), `column_datetime` datetime, `column_defaultTo` integer DEFAULT '0', `column_boolean_defaultTo` boolean DEFAULT '0', `column_notNullable` varchar(255) NOT NULL, `column_defaultToAndNotNullable` datetime NOT NULL DEFAULT '0', `column_nullable` boolean NOT NULL)"
);
});
it('properly changes the default value of a boolean column', async () => {
await knex.schema.alterTable('alter_table', (table) => {
table
.boolean('column_boolean_defaultTo')
.defaultTo(true)
.alter();
});
await knex('alter_table').insert({
column_notNullable: 'text',
});
const item_two = (await knex('alter_table'))[1];
const tableAfter = (await knex.raw(QUERY_TABLE))[0].sql;
expect(item_two.column_boolean_defaultTo).to.equal(1);
expect(tableAfter).to.equal(
"CREATE TABLE \"alter_table\" (`column_integer` integer, `column_string` varchar(255), `column_datetime` datetime, `column_defaultTo` integer DEFAULT '0', `column_boolean_defaultTo` boolean DEFAULT '1', `column_notNullable` varchar(255) NOT NULL, `column_defaultToAndNotNullable` datetime NOT NULL DEFAULT '0', `column_nullable` boolean NULL)"
);
});
it('generates correct SQL commands when altering columns', async () => {
const builder = knex.schema.alterTable('alter_table', (table) => {
table.string('column_integer').alter();
});
const queries = await builder.generateDdlCommands();
expect(queries.sql).to.deep.equal([
"CREATE TABLE `_knex_temp_alter111` (`column_integer` varchar(255), `column_string` varchar(255), `column_datetime` datetime, `column_defaultTo` integer DEFAULT '0', `column_boolean_defaultTo` boolean DEFAULT '0', `column_notNullable` varchar(255) NOT NULL, `column_defaultToAndNotNullable` datetime NOT NULL DEFAULT '0', `column_nullable` boolean NULL)",
'INSERT INTO "_knex_temp_alter111" SELECT * FROM "alter_table";',
'DROP TABLE "alter_table"',
'ALTER TABLE "_knex_temp_alter111" RENAME TO "alter_table"',
]);
});
});
});
});
});
});