@jakub.knejzlik/ts-query/src/flavors/sqlite.test.ts

TypeScript implementation of SQL builder

import { Cond } from "../Condition";
import { Fn } from "../Function";
import { Q } from "../Query";
import { DefaultFlavor } from "./default";

const flavor = Q.flavors.sqlite;

describe("SQLite Flavor flavor", () => {
  it("should render correct select", () => {
    const query = Q.select()
      .addField("foo", "blah")
      .addField(Fn.max("foo"), "blahMax")
      .from("table")
      .where(Cond.equal("foo", 123))
      .where(Cond.equal("blah", "hello"))
      .orderBy("foo", "DESC")
      .limit(100)
      .offset(2);
    expect(query.toSQL(flavor)).toEqual(
      "SELECT `foo` AS `blah`, MAX(`foo`) AS `blahMax` FROM `table` WHERE `foo` = 123 AND `blah` = 'hello' ORDER BY `foo` DESC LIMIT 100 OFFSET 2"
    );
  });
  it("should render correct update", () => {
    const query = Q.update("table").set({ foo: `'aa'xx"` });
    expect(query.toSQL(flavor)).toEqual(
      "UPDATE `table` SET `foo` = '''aa''xx\"'"
    );
  });
  it("should render correct functions", () => {
    const query = Q.select()
      .addField(Fn.month("date"), "month")
      .addField(Fn.year("date"), "year")
      .addField(Fn.if(Cond.lessThan("foo", 5), "foo", "blah"), "blah")
      .from("table");
    expect(query.toSQL(flavor)).toEqual(
      "SELECT strftime('%m', `date`, 'localtime') AS `month`, strftime('%Y', `date`, 'localtime') AS `year`, IIF(`foo` < 5, `foo`, `blah`) AS `blah` FROM `table`"
    );
  });

  it("dateadd", () => {
    expect(Fn.dateAdd("date", 12, "year").toSQL(flavor)).toEqual(
      "DateTime(`date`, '+12 year')"
    );
    expect(Fn.dateAdd("date", -12, "day").toSQL(flavor)).toEqual(
      "DateTime(`date`, '-12 day')"
    );
  });
});