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update.spec.js
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259 lines (248 loc) · 8.21 KB
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const { expect } = require('chai');
const Parser = require('../src/parser').default
describe('update', () => {
const parser = new Parser();
function getParsedSql(sql, opt) {
const ast = parser.astify(sql, opt);
return parser.sqlify(ast, opt);
}
it('should parse baisc usage', () => {
const { tableList, columnList, ast } = parser.parse('UPDATE a set id = 1');
expect(tableList).to.eql(["update::null::a"]);
expect(columnList).to.eql(["update::null::id"]);
expect(ast.type).to.be.eql('update');
expect(ast.table).to.be.eql([{
"db": null,
"table": "a",
"as": null
}]);
expect(ast.set).to.eql([{
column: 'id',
table: null,
value: {
type: 'number',
value: 1
}
}]);
expect(ast.where).to.be.null;
});
it('should parse baisc usage', () => {
const { tableList, columnList, ast } = parser.parse('UPDATE a set a.id = 1');
expect(tableList).to.eql(["update::null::a"]);
expect(columnList).to.eql(["update::a::id"]);
expect(ast.type).to.be.eql('update');
expect(ast.table).to.be.eql([{
"db": null,
"table": "a",
"as": null
}]);
expect(ast.set).to.eql([{
column: 'id',
table: 'a',
value: {
type: 'number',
value: 1
}
}]);
expect(ast.where).to.be.null;
});
it('should parse function expression', () => {
const { tableList, columnList, ast } = parser.parse("UPDATE t SET col1 = concat(name, '名字')");
expect(tableList).to.eql(["update::null::t"]);
expect(columnList).to.eql(["select::null::name", "update::null::col1"]);
expect(ast.type).to.be.eql('update');
expect(ast.table).to.be.eql([
{
"db": null,
"table": "t",
"as": null
}
]);
expect(ast.set).to.eql([
{
column: "col1",
table: null,
value: {
type: "function",
name: { name: [{ type: 'default', value: 'concat' }]},
over: null,
args: {
type: "expr_list",
value: [
{
collate: null,
type: "column_ref",
table: null,
column: "name"
},
{
type: "single_quote_string",
value: "名字"
}
]
}
}
}
]);
expect(ast.where).to.be.null;
});
it('should parser set is null', () => {
const set = [
{
"column": "id",
"table": null
}
]
const value = {
"type": "number",
"value": 1
}
const ast = {
"type": "update",
"table": [
{
"db": null,
"table": "a",
"as": null
}
],
"where": null
}
expect(parser.sqlify(ast)).to.be.equal('UPDATE `a`')
ast.set = []
expect(parser.sqlify(ast)).to.be.equal('UPDATE `a` SET ')
ast.set = set
expect(parser.sqlify(ast)).to.be.equal('UPDATE `a` SET `id`')
set[0].value = value
expect(parser.sqlify(ast)).to.be.equal('UPDATE `a` SET `id` = 1')
})
it('should parse cross-table update', () => {
const { tableList, columnList, ast } = parser.parse("UPDATE Reservations r JOIN Train t ON (r.Train = t.TrainID) SET t.Capacity = t.Capacity + r.NoSeats WHERE r.ReservationID = 12");
expect(tableList).to.eql([
"update::null::Reservations",
"select::null::Train",
"update::null::Train"
]);
expect(columnList).to.eql([
"select::Reservations::Train",
"select::Train::TrainID",
"select::Train::Capacity",
"select::Reservations::NoSeats",
"select::Reservations::ReservationID",
"update::Train::Capacity"
]);
expect(ast.type).to.be.eql('update');
expect(ast.table).to.be.eql([
{
"db": null,
"table": "Reservations",
"as": "r"
},
{
"db": null,
"table": "Train",
"as": "t",
"join": "INNER JOIN",
"on": {
"type": "binary_expr",
"operator": "=",
"left": {
"collate": null,
"type": "column_ref",
"table": "r",
"column": "Train"
},
"right": {
"collate": null,
"type": "column_ref",
"table": "t",
"column": "TrainID"
},
"parentheses": true
}
}
]);
expect(ast.set).to.eql([
{
"column": "Capacity",
"value": {
"type": "binary_expr",
"operator": "+",
"left": {
"collate": null,
"type": "column_ref",
"table": "t",
"column": "Capacity"
},
"right": {
"collate": null,
"type": "column_ref",
"table": "r",
"column": "NoSeats"
}
},
"table": "t"
}
]);
expect(ast.where).to.be.eql({
"type": "binary_expr",
"operator": "=",
"left": {
"collate": null,
"type": "column_ref",
"table": "r",
"column": "ReservationID"
},
"right": {
"type": "number",
"value": 12
}
});
})
it('should support set value', () => {
expect(getParsedSql('update a set id = 123, name = values(abc) where age > 15 order by name'))
.to.be.equal('UPDATE `a` SET `id` = 123, `name` = values(`abc`) WHERE `age` > 15 ORDER BY `name` ASC')
})
it('should support order by and limit in update sql', () => {
expect(getParsedSql('update a set id = 123 where age > 15 order by name')).to.be.equal('UPDATE `a` SET `id` = 123 WHERE `age` > 15 ORDER BY `name` ASC')
expect(getParsedSql('update a set id = 123 order by name')).to.be.equal('UPDATE `a` SET `id` = 123 ORDER BY `name` ASC')
expect(getParsedSql('update a set id = 123 limit 10')).to.be.equal('UPDATE `a` SET `id` = 123 LIMIT 10')
expect(getParsedSql('update a set id = 123 order by name limit 10')).to.be.equal('UPDATE `a` SET `id` = 123 ORDER BY `name` ASC LIMIT 10')
})
it('should support parse pg update returning', () => {
const sql = 'update account set id = 1 where name = "abc" returning id'
const ast = parser.astify(sql, { database: 'postgresql' })
const backSQL = parser.sqlify(ast)
expect(backSQL).to.be.equal('UPDATE `account` SET id = 1 WHERE name = "abc" RETURNING id')
})
it('should get tableList in right action', () => {
let sql = `UPDATE empdb.employees t1 INNER JOIN empdb.merits t2 ON t1.performance = t2.performance SET t1.salary = t1.salary + t1.salary * t2.percentage;`
let ast = parser.parse(sql)
expect(ast.tableList).to.eql(["update::empdb::employees", "select::empdb::merits"])
expect(ast.columnList).to.eql([
"select::employees::performance",
"select::merits::performance",
"select::employees::salary",
"select::merits::percentage",
"update::employees::salary"
])
})
it('should parse update statement', () => {
sql = `UPDATE empdb.employees t1 INNER JOIN (select t2.percentage,t2.performance from empdb.merits t2) as t3 ON t1.performance = t3.performance SET t1.salary = t1.salary + t1.salary * t3.percentage;`
ast = parser.parse(sql)
expect(ast.tableList).to.eql(["select::empdb::merits", "update::empdb::employees"])
expect(ast.columnList).to.eql([
"select::merits::percentage",
"select::merits::performance",
"select::employees::performance",
"select::t3::performance",
"select::employees::salary",
"select::t3::percentage",
"update::employees::salary"
])
sql = `DELETE t1 FROM t1 INNER JOIN t2 ON t2.ref = t1.id;`
ast = parser.parse(sql)
expect(ast.tableList).to.eql(["delete::null::t1", "select::null::t2"])
expect(ast.columnList).to.eql(["select::t2::ref", "select::t1::id", "delete::t1::(.*)"])
})
});