offset-limit.test.js
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'use strict';
const Support = require('../support'),
util = require('util'),
expectsql = Support.expectsql,
current = Support.sequelize,
sql = current.dialect.queryGenerator;
// Notice: [] will be replaced by dialect specific tick/quote character when there is not dialect specific expectation but only a default expectation
describe(Support.getTestDialectTeaser('SQL'), () => {
describe('offset/limit', () => {
const testsql = function(options, expectation) {
const model = options.model;
it(util.inspect(options, { depth: 2 }), () => {
return expectsql(
sql.addLimitAndOffset(
options,
model
),
expectation
);
});
};
testsql({
limit: 10, //when no order by present, one is automagically prepended, test its existence
model: { primaryKeyField: 'id', name: 'tableRef' }
}, {
default: ' LIMIT 10',
mssql: ' ORDER BY [tableRef].[id] OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY'
});
testsql({
limit: 10,
order: [
['email', 'DESC'] // for MSSQL
]
}, {
default: ' LIMIT 10',
mssql: ' OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY'
});
testsql({
limit: 10,
offset: 20,
order: [
['email', 'DESC'] // for MSSQL
]
}, {
default: ' LIMIT 20, 10',
postgres: ' LIMIT 10 OFFSET 20',
mssql: ' OFFSET 20 ROWS FETCH NEXT 10 ROWS ONLY'
});
testsql({
limit: "';DELETE FROM user",
order: [
['email', 'DESC'] // for MSSQL
]
}, {
default: " LIMIT ''';DELETE FROM user'",
mariadb: " LIMIT '\\';DELETE FROM user'",
mysql: " LIMIT '\\';DELETE FROM user'",
mssql: " OFFSET 0 ROWS FETCH NEXT N''';DELETE FROM user' ROWS ONLY"
});
testsql({
limit: 10,
offset: "';DELETE FROM user",
order: [
['email', 'DESC'] // for MSSQL
]
}, {
sqlite: " LIMIT ''';DELETE FROM user', 10",
postgres: " LIMIT 10 OFFSET ''';DELETE FROM user'",
mariadb: " LIMIT '\\';DELETE FROM user', 10",
mysql: " LIMIT '\\';DELETE FROM user', 10",
mssql: " OFFSET N''';DELETE FROM user' ROWS FETCH NEXT 10 ROWS ONLY"
});
testsql({
limit: 10,
order: [], // When the order is an empty array, one is automagically prepended
model: { primaryKeyField: 'id', name: 'tableRef' }
}, {
default: ' LIMIT 10',
mssql: ' ORDER BY [tableRef].[id] OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY'
});
});
});