range.test.js
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'use strict';
const chai = require('chai'),
expect = chai.expect,
Support = require(__dirname + '/../../support'),
DataTypes = require(__dirname + '/../../../../lib/data-types'),
dialect = Support.getTestDialect(),
range = require('../../../../lib/dialects/postgres/range'),
_ = require('lodash');
if (dialect.match(/^postgres/)) {
// Don't try to load pg until we know we're running on postgres.
const pg = require('pg');
describe('[POSTGRES Specific] range datatype', () => {
describe('stringify', () => {
it('should handle empty objects correctly', () => {
expect(range.stringify([])).to.equal('empty');
});
it('should handle null as empty bound', () => {
expect(range.stringify([null, 1])).to.equal('[,1)');
expect(range.stringify([1, null])).to.equal('[1,)');
expect(range.stringify([null, null])).to.equal('[,)');
});
it('should handle Infinity/-Infinity as infinity/-infinity bounds', () => {
expect(range.stringify([Infinity, 1])).to.equal('[infinity,1)');
expect(range.stringify([1, Infinity])).to.equal('[1,infinity)');
expect(range.stringify([-Infinity, 1])).to.equal('[-infinity,1)');
expect(range.stringify([1, -Infinity])).to.equal('[1,-infinity)');
expect(range.stringify([-Infinity, Infinity])).to.equal('[-infinity,infinity)');
});
it('should throw error when array length is no 0 or 2', () => {
expect(() => { range.stringify([1]); }).to.throw();
expect(() => { range.stringify([1, 2, 3]); }).to.throw();
});
it('should throw error when non-array parameter is passed', () => {
expect(() => { range.stringify({}); }).to.throw();
expect(() => { range.stringify('test'); }).to.throw();
expect(() => { range.stringify(undefined); }).to.throw();
});
it('should handle array of objects with `inclusive` and `value` properties', () => {
expect(range.stringify([{ inclusive: true, value: 0 }, { value: 1 }])).to.equal('[0,1)');
expect(range.stringify([{ inclusive: true, value: 0 }, { inclusive: true, value: 1 }])).to.equal('[0,1]');
expect(range.stringify([{ inclusive: false, value: 0 }, 1])).to.equal('(0,1)');
expect(range.stringify([0, { inclusive: true, value: 1 }])).to.equal('[0,1]');
});
it('should handle inclusive property of input array properly', () => {
const testRange = [1, 2];
testRange.inclusive = [true, false];
expect(range.stringify(testRange)).to.equal('[1,2)');
testRange.inclusive = [false, true];
expect(range.stringify(testRange)).to.equal('(1,2]');
testRange.inclusive = [true, true];
expect(range.stringify(testRange)).to.equal('[1,2]');
testRange.inclusive = true;
expect(range.stringify(testRange)).to.equal('[1,2]');
testRange.inclusive = false;
expect(range.stringify(testRange)).to.equal('(1,2)');
});
it('should handle date values', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.DATE);
expect(Range.stringify([new Date(Date.UTC(2000, 1, 1)),
new Date(Date.UTC(2000, 1, 2))], { timezone: '+02:00' })).to.equal('\'["2000-02-01 02:00:00.000 +02:00","2000-02-02 02:00:00.000 +02:00")\'');
});
});
describe('stringify value', () => {
it('should stringify integer values with appropriate casting', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.INTEGER);
expect(Range.stringify(1)).to.equal('\'1\'::integer');
});
it('should stringify bigint values with appropriate casting', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.BIGINT);
expect(Range.stringify(1)).to.equal('\'1\'::bigint');
});
it('should stringify numeric values with appropriate casting', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.DECIMAL);
expect(Range.stringify(1.1)).to.equal('\'1.1\'::numeric');
});
it('should stringify dateonly values with appropriate casting', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.DATEONLY);
expect(Range.stringify(new Date(Date.UTC(2000, 1, 1))).indexOf('::date')).not.to.equal(-1);
});
it('should stringify date values with appropriate casting', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.DATE);
expect(Range.stringify(new Date(Date.UTC(2000, 1, 1)), { timezone: '+02:00' })).to.equal('\'2000-02-01 02:00:00.000 +02:00\'::timestamptz');
});
describe('with null range bounds', () => {
const infiniteRange = [null, null];
const infiniteRangeSQL = "'[,)'";
it('should stringify integer range to infinite range', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.INTEGER);
expect(Range.stringify(infiniteRange)).to.equal(infiniteRangeSQL);
});
it('should stringify bigint range to infinite range', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.BIGINT);
expect(Range.stringify(infiniteRange)).to.equal(infiniteRangeSQL);
});
it('should stringify numeric range to infinite range', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.DECIMAL);
expect(Range.stringify(infiniteRange)).to.equal(infiniteRangeSQL);
});
it('should stringify dateonly ranges appropriately', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.DATEONLY);
expect(Range.stringify(infiniteRange)).to.equal(infiniteRangeSQL);
});
it('should be stringified to appropriate unbounded postgres range', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.DATEONLY);
expect(Range.stringify(infiniteRange)).to.equal(infiniteRangeSQL);
});
it('should stringify date values with appropriate casting', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.DATE);
expect(Range.stringify(infiniteRange, { timezone: '+02:00' })).to.equal(infiniteRangeSQL);
});
});
describe('with infinite range bounds', () => {
const infiniteRange = [-Infinity, Infinity];
const infiniteRangeSQL = "'[-infinity,infinity)'";
it('should stringify integer range to infinite range', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.INTEGER);
expect(Range.stringify(infiniteRange)).to.equal(infiniteRangeSQL);
});
it('should stringify bigint range to infinite range', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.BIGINT);
expect(Range.stringify(infiniteRange)).to.equal(infiniteRangeSQL);
});
it('should stringify numeric range to infinite range', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.DECIMAL);
expect(Range.stringify(infiniteRange)).to.equal(infiniteRangeSQL);
});
it('should stringify dateonly ranges appropriately', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.DATEONLY);
expect(Range.stringify(infiniteRange)).to.equal(infiniteRangeSQL);
});
it('should be stringified to appropriate unbounded postgres range', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.DATEONLY);
expect(Range.stringify(infiniteRange)).to.equal(infiniteRangeSQL);
});
it('should stringify date values with appropriate casting', () => {
const Range = new DataTypes.postgres.RANGE(DataTypes.DATE);
expect(Range.stringify(infiniteRange, { timezone: '+02:00' })).to.equal(infiniteRangeSQL);
});
});
});
describe('parse', () => {
it('should handle a null object correctly', () => {
expect(range.parse(null)).to.equal(null);
});
it('should handle empty range string correctly', () => {
expect(range.parse('empty')).to.deep.equal(_.extend([], { inclusive: [] }));
});
it('should handle empty bounds correctly', () => {
expect(range.parse('(1,)', DataTypes.postgres.INTEGER.parse)).to.deep.equal(_.extend([1, null], { inclusive: [false, false] }));
expect(range.parse('(,1)', DataTypes.postgres.INTEGER.parse)).to.deep.equal(_.extend([null, 1], { inclusive: [false, false] }));
expect(range.parse('(,)', DataTypes.postgres.INTEGER.parse)).to.deep.equal(_.extend([null, null], { inclusive: [false, false] }));
});
it('should handle infinity/-infinity bounds correctly', () => {
expect(range.parse('(infinity,1)', DataTypes.postgres.INTEGER.parse)).to.deep.equal(_.extend([Infinity, 1], { inclusive: [false, false] }));
expect(range.parse('(1,infinity)', DataTypes.postgres.INTEGER.parse)).to.deep.equal(_.extend([1, Infinity], { inclusive: [false, false] }));
expect(range.parse('(-infinity,1)', DataTypes.postgres.INTEGER.parse)).to.deep.equal(_.extend([-Infinity, 1], { inclusive: [false, false] }));
expect(range.parse('(1,-infinity)', DataTypes.postgres.INTEGER.parse)).to.deep.equal(_.extend([1, -Infinity], { inclusive: [false, false] }));
expect(range.parse('(-infinity,infinity)', DataTypes.postgres.INTEGER.parse)).to.deep.equal(_.extend([-Infinity, Infinity], { inclusive: [false, false] }));
});
it('should return raw value if not range is returned', () => {
expect(range.parse('some_non_array')).to.deep.equal('some_non_array');
});
it('should handle native postgres timestamp format', () => {
const tsOid = DataTypes.postgres.DATE.types.postgres.oids[0],
parser = pg.types.getTypeParser(tsOid);
expect(range.parse('(2016-01-01 08:00:00-04,)', parser)[0].toISOString()).to.equal('2016-01-01T12:00:00.000Z');
});
});
describe('stringify and parse', () => {
it('should stringify then parse back the same structure', () => {
const testRange = [5, 10];
testRange.inclusive = [true, true];
const Range = new DataTypes.postgres.RANGE(DataTypes.INTEGER);
let stringified = Range.stringify(testRange, {});
stringified = stringified.substr(1, stringified.length - 2); // Remove the escaping ticks
expect(DataTypes.postgres.RANGE.parse(stringified, 3904, () => { return DataTypes.postgres.INTEGER.parse; })).to.deep.equal(testRange);
});
});
});
}