import { Datasource, DatasourceType } from '../src/index';
import { InfluxdbConnector } from '../src/connectors/influxdb';

import 'jest';


describe('Correct InfluxDB query', function() {
  let datasource: Datasource = {
    url: 'url',
    type: DatasourceType.INFLUXDB,
    params: {
      db: 'db',
      q: `SELECT mean("value") FROM "db" WHERE time > xxx AND time <= xxx LIMIT 100 OFFSET 20`,
      epoch: ''
    }
  };

  let target = 'mean("value")';

  it("test query with two time expressions", function() {
    const connector = new InfluxdbConnector(datasource, [target]);
    expect(connector.getQuery(1534809600,1537488000,666,10).schema.params.q).toBe(
      `SELECT mean("value") FROM "db" WHERE  time >= 1534809600ms AND time <= 1537488000ms LIMIT 666 OFFSET 10`
    )
  });

  it('test query with one time expression', function() {
    datasource.params.q = `SELECT mean("value") FROM "cpu_value" WHERE time >= now() - 6h GROUP BY time(30s) fill(null)`;
    const connector = new InfluxdbConnector(datasource, [target]);
    expect(connector.getQuery(1534809600,1537488000,666,10).schema.params.q).toBe(
      `SELECT mean("value") FROM "cpu_value" WHERE  time >= 1534809600ms AND time <= 1537488000ms GROUP BY time(30s) fill(null) LIMIT 666 OFFSET 10`
    )
  });

  it('test query with time expression', function() {
    datasource.params.q = `SELECT mean("value") FROM "cpu_value" WHERE time>= now() - 6h AND time<xxx GROUP BY time(30s) fill(null)`;
    const connector = new InfluxdbConnector(datasource, [target]);
    expect(connector.getQuery(1534809600,1537488000,666,10).schema.params.q).toBe(
      `SELECT mean("value") FROM "cpu_value" WHERE  time >= 1534809600ms AND time <= 1537488000ms GROUP BY time(30s) fill(null) LIMIT 666 OFFSET 10`
    )
  });

})